Cut release v0.15.6 (#1666)

* change to download listener

* ultra snapshot test

* clean up

* Revert "ultra snapshot test"

This reverts commit 2d2a585a17.

.github/workflows/playwright.yml

@@ -4,6 +4,11 @@ on:
     branches: [ main ]
   pull_request:
     branches: [ main ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   playwright-ubuntu:
     timeout-minutes: 60
@@ -80,7 +85,6 @@ jobs:
   playwright-macos:
     timeout-minutes: 60
     runs-on: macos-14
-    needs: playwright-ubuntu
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-node@v4

.gitignore

@@ -33,6 +33,7 @@ src/wasm-lib/bindings
 src/wasm-lib/kcl/bindings
 public/wasm_lib_bg.wasm
 src/wasm-lib/lcov.info
+src/wasm-lib/grackle/test_json_output
 
 e2e/playwright/playwright-secrets.env
 e2e/playwright/temp1.png

README.md

@@ -141,7 +141,7 @@ run `./make-release.sh` for a patch update
 run `./make-release.sh "minor"` for minor
 run `./make-release.sh "major"` for major
 
-The PR may serve as a place to discuss the human-readable changelog and extra QA. A quick way of getting PR's merged since the last bump is to [use this PR filter](https://github.com/KittyCAD/modeling-app/pulls?q=is%3Apr+sort%3Aupdated-desc+is%3Amerged+), open up the browser console and past in the following
+The PR may serve as a place to discuss the human-readable changelog and extra QA. A quick way of getting PR's merged since the last bump is to [use this PR filter](https://github.com/KittyCAD/modeling-app/pulls?q=is%3Apr+sort%3Aupdated-desc+is%3Amerged+), open up the browser console and paste in the following
 
 ```typescript
 console.log(

e2e/playwright/flow-tests.spec.ts

@@ -4,6 +4,7 @@ import { getUtils } from './test-utils'
 import waitOn from 'wait-on'
 import { Themes } from '../../src/lib/theme'
 import { roundOff } from 'lib/utils'
+import { platform } from 'node:os'
 
 /*
 debug helper: unfortunately we do rely on exact coord mouse clicks in a few places
@@ -16,9 +17,9 @@ document.addEventListener('mousemove', (e) =>
 */
 
 const commonPoints = {
-  startAt: '[0.93, -1.26]',
-  num1: 0.95,
-  num2: 1.88,
+  startAt: '[9.06, -12.22]',
+  num1: 9.14,
+  num2: 18.2,
 }
 
 test.beforeEach(async ({ context, page }) => {
@@ -66,10 +67,8 @@ test('Basic sketch', async ({ page }) => {
 
   // click on "Start Sketch" button
   await u.clearCommandLogs()
-  await u.doAndWaitForImageDiff(
-    () => page.getByRole('button', { name: 'Start Sketch' }).click(),
-    200
-  )
+  await page.getByRole('button', { name: 'Start Sketch' }).click()
+  await page.waitForTimeout(100)
 
   // select a plane
   await page.mouse.click(700, 200)
@@ -91,7 +90,6 @@ test('Basic sketch', async ({ page }) => {
   await page.mouse.click(startXPx + PUR * 20, 500 - PUR * 10)
   await page.waitForTimeout(100)
 
-  const num = 26.63
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
@@ -102,13 +100,13 @@ test('Basic sketch', async ({ page }) => {
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)`)
+  |> line([0, ${commonPoints.num1}], %)`)
   await page.mouse.click(startXPx, 500 - PUR * 20)
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)
+  |> line([0, ${commonPoints.num1}], %)
   |> line([-${commonPoints.num2}, 0], %)`)
 
   // deselect line tool
@@ -133,10 +131,130 @@ test('Basic sketch', async ({ page }) => {
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line({ to: [${commonPoints.num1}, 0], tag: 'seg01' }, %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)
+  |> line([0, ${commonPoints.num1}], %)
   |> angledLine([180, segLen('seg01', %)], %)`)
 })
 
+test('Can moving camera', async ({ page, context }) => {
+  test.skip(process.platform === 'darwin', 'Can moving camera')
+  const u = getUtils(page)
+  await page.setViewportSize({ width: 1200, height: 500 })
+  await page.goto('/')
+  await u.waitForAuthSkipAppStart()
+  await u.openAndClearDebugPanel()
+
+  const camPos: [number, number, number] = [0, 85, 85]
+  const bakeInRetries = async (
+    mouseActions: any,
+    xyz: [number, number, number],
+    cnt = 0
+  ) => {
+    // hack that we're implemented our own retry instead of using retries built into playwright.
+    // however each of these camera drags can be flaky, because of udp
+    // and so putting them together means only one needs to fail to make this test extra flaky.
+    // this way we can retry within the test
+    // We could break them out into separate tests, but the longest past of the test is waiting
+    // for the stream to start, so it can be good to bundle related things together.
+
+    await u.updateCamPosition(camPos)
+    await page.waitForTimeout(100)
+
+    // rotate
+    await u.closeDebugPanel()
+    await page.getByRole('button', { name: 'Start Sketch' }).click()
+    await page.waitForTimeout(100)
+    // const yo = page.getByTestId('cam-x-position').inputValue()
+
+    await u.doAndWaitForImageDiff(async () => {
+      await mouseActions()
+
+      await u.openAndClearDebugPanel()
+
+      await u.closeDebugPanel()
+      await page.waitForTimeout(100)
+    }, 300)
+
+    await u.openAndClearDebugPanel()
+    const vals = await Promise.all([
+      page.getByTestId('cam-x-position').inputValue(),
+      page.getByTestId('cam-y-position').inputValue(),
+      page.getByTestId('cam-z-position').inputValue(),
+    ])
+    const xError = Math.abs(Number(vals[0]) + xyz[0])
+    const yError = Math.abs(Number(vals[1]) + xyz[1])
+    const zError = Math.abs(Number(vals[2]) + xyz[2])
+
+    let shouldRetry = false
+
+    if (xError > 5 || yError > 5 || zError > 5) {
+      if (cnt > 2) {
+        console.log('xVal', vals[0], 'xError', xError)
+        console.log('yVal', vals[1], 'yError', yError)
+        console.log('zVal', vals[2], 'zError', zError)
+
+        throw new Error('Camera position not as expected')
+      }
+      shouldRetry = true
+    }
+    await page.getByRole('button', { name: 'Exit Sketch' }).click()
+    await page.waitForTimeout(100)
+    if (shouldRetry) await bakeInRetries(mouseActions, xyz, cnt + 1)
+  }
+  await bakeInRetries(async () => {
+    await page.mouse.move(700, 200)
+    await page.mouse.down({ button: 'right' })
+    await page.mouse.move(600, 303)
+    await page.mouse.up({ button: 'right' })
+  }, [4, -10.5, -120])
+
+  await bakeInRetries(async () => {
+    await page.keyboard.down('Shift')
+    await page.mouse.move(600, 200)
+    await page.mouse.down({ button: 'right' })
+    await page.mouse.move(700, 200, { steps: 2 })
+    await page.mouse.up({ button: 'right' })
+    await page.keyboard.up('Shift')
+  }, [-10, -85, -85])
+
+  await u.updateCamPosition(camPos)
+
+  await u.clearCommandLogs()
+  await u.closeDebugPanel()
+
+  await page.getByRole('button', { name: 'Start Sketch' }).click()
+  await page.waitForTimeout(200)
+
+  // zoom
+  await u.doAndWaitForImageDiff(async () => {
+    await page.keyboard.down('Control')
+    await page.mouse.move(700, 400)
+    await page.mouse.down({ button: 'right' })
+    await page.mouse.move(700, 300)
+    await page.mouse.up({ button: 'right' })
+    await page.keyboard.up('Control')
+
+    await u.openDebugPanel()
+    await page.waitForTimeout(300)
+    await u.clearCommandLogs()
+
+    await u.closeDebugPanel()
+  }, 300)
+
+  // zoom with scroll
+  await u.openAndClearDebugPanel()
+  // TODO, it appears we don't get the cam setting back from the engine when the interaction is zoom into `backInRetries` once the information is sent back on zoom
+  // await expect(Math.abs(Number(await page.getByTestId('cam-x-position').inputValue()) + 12)).toBeLessThan(1.5)
+  // await expect(Math.abs(Number(await page.getByTestId('cam-y-position').inputValue()) - 85)).toBeLessThan(1.5)
+  // await expect(Math.abs(Number(await page.getByTestId('cam-z-position').inputValue()) - 85)).toBeLessThan(1.5)
+
+  await page.getByRole('button', { name: 'Exit Sketch' }).click()
+
+  await bakeInRetries(async () => {
+    await page.mouse.move(700, 400)
+    await page.mouse.wheel(0, -100)
+  }, [1, -94, -94])
+})
+
 test('if you write invalid kcl you get inlined errors', async ({ page }) => {
   const u = getUtils(page)
   await page.setViewportSize({ width: 1000, height: 500 })
@@ -386,12 +504,16 @@ test('Auto complete works', async ({ page }) => {
   await page.keyboard.press('ArrowDown')
   await page.keyboard.press('ArrowDown')
   await page.keyboard.press('Enter')
-  await page.keyboard.type('(5, %)')
+  // finish line with comment
+  await page.keyboard.type('(5, %) // lin')
+  await page.waitForTimeout(100)
+  // there shouldn't be any auto complete options for 'lin' in the comment
+  await expect(page.locator('.cm-completionLabel')).not.toBeVisible()
 
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('XY')
   |> startProfileAt([0,0], %)
-  |> xLine(5, %)`)
+  |> xLine(5, %) // lin`)
 })
 
 // Onboarding tests
@@ -488,13 +610,13 @@ test('Selections work on fresh and edited sketch', async ({ page }) => {
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)`)
+  |> line([0, ${commonPoints.num1}], %)`)
   await page.mouse.click(startXPx, 500 - PUR * 20)
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)
+  |> line([0, ${commonPoints.num1}], %)
   |> line([-${commonPoints.num2}, 0], %)`)
 
   // deselect line tool
@@ -621,12 +743,12 @@ test('Command bar works and can change a setting', async ({ page }) => {
   const themeOption = page.getByRole('option', { name: 'Set Theme' })
   await expect(themeOption).toBeVisible()
   await themeOption.click()
-  const themeInput = page.getByPlaceholder('Select an option')
+  const themeInput = page.getByPlaceholder('system')
   await expect(themeInput).toBeVisible()
   await expect(themeInput).toBeFocused()
   // Select dark theme
   await page.keyboard.press('ArrowDown')
-  await page.keyboard.press('ArrowDown')
+  await page.keyboard.press('ArrowUp')
   await expect(page.getByRole('option', { name: Themes.Dark })).toHaveAttribute(
     'data-headlessui-state',
     'active'
@@ -699,6 +821,8 @@ test('Can extrude from the command bar', async ({ page, context }) => {
   ).toBeDisabled()
   await page.keyboard.press('Enter')
 
+  await expect(page.getByText('Confirm Extrude')).toBeVisible()
+
   // Check that the code was updated
   await page.keyboard.press('Enter')
   // Unfortunately this indentation seems to matter for the test
@@ -765,12 +889,12 @@ test('Can add multiple sketches', async ({ page }) => {
     .toHaveText(`const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)`)
+  |> line([0, ${commonPoints.num1}], %)`)
   await page.mouse.click(startXPx, 500 - PUR * 20)
   const finalCodeFirstSketch = `const part001 = startSketchOn('-XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
-  |> line([0, ${commonPoints.num1 - 0.01}], %)
+  |> line([0, ${commonPoints.num1}], %)
   |> line([-${commonPoints.num2}, 0], %)`
   await expect(page.locator('.cm-content')).toHaveText(finalCodeFirstSketch)
 
@@ -930,7 +1054,7 @@ fn yohey = (pos) => {
   |> line([-15.79, 17.08], %)
   return ''
 }
-    
+
     yohey([15.79, -34.6])
 `
       )
@@ -992,7 +1116,6 @@ test('Deselecting line tool should mean nothing happens on click', async ({
 }) => {
   const u = getUtils(page)
   await page.setViewportSize({ width: 1200, height: 500 })
-  const PUR = 400 / 37.5 //pixeltoUnitRatio
   await page.goto('/')
   await u.waitForAuthSkipAppStart()
   await u.openDebugPanel()
@@ -1050,3 +1173,160 @@ test('Deselecting line tool should mean nothing happens on click', async ({
   await expect(page.locator('.cm-content')).not.toHaveText(previousCodeContent)
   previousCodeContent = await page.locator('.cm-content').innerText()
 })
+
+test('Can edit segments by dragging their handles', async ({
+  page,
+  context,
+}) => {
+  const u = getUtils(page)
+  await context.addInitScript(async () => {
+    localStorage.setItem(
+      'persistCode',
+      `const part001 = startSketchOn('-XZ')
+  |> startProfileAt([4.61, -14.01], %)
+  |> line([12.73, -0.09], %)
+  |> tangentialArcTo([24.95, -5.38], %)`
+    )
+  })
+
+  await page.setViewportSize({ width: 1200, height: 500 })
+  await page.goto('/')
+  await u.waitForAuthSkipAppStart()
+  await expect(
+    page.getByRole('button', { name: 'Start Sketch' })
+  ).not.toBeDisabled()
+
+  const startPX = [652, 418]
+  const lineEndPX = [794, 416]
+  const arcEndPX = [893, 318]
+
+  const dragPX = 30
+
+  await page.getByText('startProfileAt([4.61, -14.01], %)').click()
+  await expect(page.getByRole('button', { name: 'Edit Sketch' })).toBeVisible()
+  await page.getByRole('button', { name: 'Edit Sketch' }).click()
+  await page.waitForTimeout(100)
+  let prevContent = await page.locator('.cm-content').innerText()
+
+  const step5 = { steps: 5 }
+
+  // drag startProfieAt handle
+  await page.mouse.move(startPX[0], startPX[1])
+  await page.mouse.down()
+  await page.mouse.move(startPX[0] + dragPX, startPX[1] - dragPX, step5)
+  await page.mouse.up()
+  await page.waitForTimeout(100)
+  await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+  prevContent = await page.locator('.cm-content').innerText()
+
+  // drag line handle
+  await page.mouse.move(lineEndPX[0] + dragPX, lineEndPX[1] - dragPX)
+  await page.mouse.down()
+  await page.mouse.move(
+    lineEndPX[0] + dragPX * 2,
+    lineEndPX[1] - dragPX * 2,
+    step5
+  )
+  await page.mouse.up()
+  await page.waitForTimeout(100)
+  await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+  prevContent = await page.locator('.cm-content').innerText()
+
+  // drag tangentialArcTo handle
+  await page.mouse.move(arcEndPX[0], arcEndPX[1])
+  await page.mouse.down()
+  await page.mouse.move(arcEndPX[0] + dragPX, arcEndPX[1] - dragPX, step5)
+  await page.mouse.up()
+  await page.waitForTimeout(100)
+  await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+
+  // expect the code to have changed
+  await expect(page.locator('.cm-content'))
+    .toHaveText(`const part001 = startSketchOn('-XZ')
+  |> startProfileAt([7.01, -11.79], %)
+  |> line([14.69, 2.73], %)
+  |> tangentialArcTo([27.6, -3.25], %)`)
+})
+
+test('Snap to close works (at any scale)', async ({ page }) => {
+  const u = getUtils(page)
+  await page.setViewportSize({ width: 1200, height: 500 })
+  await page.goto('/')
+  await u.waitForAuthSkipAppStart()
+  await u.openDebugPanel()
+
+  await expect(
+    page.getByRole('button', { name: 'Start Sketch' })
+  ).not.toBeDisabled()
+  await expect(page.getByRole('button', { name: 'Start Sketch' })).toBeVisible()
+
+  const doSnapAtDifferentScales = async (
+    camPos: [number, number, number],
+    expectedCode: string
+  ) => {
+    await u.clearCommandLogs()
+    await page.getByRole('button', { name: 'Start Sketch' }).click()
+    await page.waitForTimeout(100)
+
+    await u.openAndClearDebugPanel()
+    await u.updateCamPosition(camPos)
+    await u.closeDebugPanel()
+
+    // select a plane
+    await page.mouse.click(700, 200)
+    await expect(page.locator('.cm-content')).toHaveText(
+      `const part001 = startSketchOn('XZ')`
+    )
+
+    let prevContent = await page.locator('.cm-content').innerText()
+
+    const pointA = [700, 200]
+    const pointB = [900, 200]
+    const pointC = [900, 400]
+
+    // draw three lines
+    await page.mouse.click(pointA[0], pointA[1])
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+    prevContent = await page.locator('.cm-content').innerText()
+
+    await page.mouse.click(pointB[0], pointB[1])
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+    prevContent = await page.locator('.cm-content').innerText()
+
+    await page.mouse.click(pointC[0], pointC[1])
+    await page.waitForTimeout(100)
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+    prevContent = await page.locator('.cm-content').innerText()
+
+    await page.mouse.move(pointA[0] - 12, pointA[1] + 12)
+    const pointNotQuiteA = [pointA[0] - 7, pointA[1] + 7]
+    await page.mouse.move(pointNotQuiteA[0], pointNotQuiteA[1], { steps: 10 })
+
+    await page.mouse.click(pointNotQuiteA[0], pointNotQuiteA[1])
+    await expect(page.locator('.cm-content')).not.toHaveText(prevContent)
+    prevContent = await page.locator('.cm-content').innerText()
+
+    await expect(page.locator('.cm-content')).toHaveText(expectedCode)
+
+    // exit sketch
+    await u.openAndClearDebugPanel()
+    await page.getByRole('button', { name: 'Exit Sketch' }).click()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.removeCurrentCode()
+  }
+
+  const codeTemplate = (
+    scale = 1,
+    fudge = 0
+  ) => `const part001 = startSketchOn('XZ')
+|> startProfileAt([${roundOff(scale * 87.68)}, ${roundOff(scale * 43.84)}], %)
+|> line([${roundOff(scale * 175.36)}, 0], %)
+|> line([0, -${roundOff(scale * 175.37) + fudge}], %)
+|> close(%)`
+
+  await doSnapAtDifferentScales([0, 100, 100], codeTemplate(0.01, 0.01))
+
+  await doSnapAtDifferentScales([0, 10000, 10000], codeTemplate())
+})

e2e/playwright/snapshot-tests.spec.ts

@@ -1,4 +1,4 @@
-import { test, expect } from '@playwright/test'
+import { test, expect, Download } from '@playwright/test'
 import { secrets } from './secrets'
 import { getUtils } from './test-utils'
 import { Models } from '@kittycad/lib'
@@ -29,96 +29,7 @@ test.beforeEach(async ({ context, page }) => {
   await page.emulateMedia({ reducedMotion: 'reduce' })
 })
 
-test.setTimeout(60000)
-
-const commonPoints = {
-  startAt: '[26.38, -35.59]',
-  num1: 26.63,
-  num2: 53.01,
-}
-
-test('change camera, show planes', async ({ page, context }) => {
-  const u = getUtils(page)
-  await page.setViewportSize({ width: 1200, height: 500 })
-  await page.goto('/')
-  await u.waitForAuthSkipAppStart()
-  await u.openAndClearDebugPanel()
-
-  const camPos: [number, number, number] = [0, 85, 85]
-  await u.updateCamPosition(camPos)
-
-  // rotate
-  await u.closeDebugPanel()
-  await page.mouse.move(700, 200)
-  await page.mouse.down({ button: 'right' })
-  await page.mouse.move(600, 300)
-  await page.mouse.up({ button: 'right' })
-
-  await u.openDebugPanel()
-  await page.waitForTimeout(500)
-  await u.clearCommandLogs()
-
-  await page.getByRole('button', { name: 'Start Sketch' }).click()
-
-  await u.closeDebugPanel()
-
-  await expect(page).toHaveScreenshot({
-    maxDiffPixels: 100,
-  })
-
-  await u.openAndClearDebugPanel()
-  await page.getByRole('button', { name: 'Exit Sketch' }).click()
-
-  await u.updateCamPosition(camPos)
-
-  await u.clearCommandLogs()
-  await u.closeDebugPanel()
-  // pan
-  await page.keyboard.down('Shift')
-  await page.mouse.move(600, 200)
-  await page.mouse.down({ button: 'right' })
-  await page.mouse.move(700, 200)
-  await page.mouse.up({ button: 'right' })
-  await page.keyboard.up('Shift')
-
-  await u.openDebugPanel()
-  await page.waitForTimeout(300)
-  await u.clearCommandLogs()
-
-  await page.getByRole('button', { name: 'Start Sketch' }).click()
-  await u.closeDebugPanel()
-
-  await expect(page).toHaveScreenshot({
-    maxDiffPixels: 100,
-  })
-
-  await u.openAndClearDebugPanel()
-  await page.getByRole('button', { name: 'Exit Sketch' }).click()
-
-  await u.updateCamPosition(camPos)
-
-  await u.clearCommandLogs()
-  await u.closeDebugPanel()
-
-  // zoom
-  await page.keyboard.down('Control')
-  await page.mouse.move(700, 400)
-  await page.mouse.down({ button: 'right' })
-  await page.mouse.move(700, 300)
-  await page.mouse.up({ button: 'right' })
-  await page.keyboard.up('Control')
-
-  await u.openDebugPanel()
-  await page.waitForTimeout(300)
-  await u.clearCommandLogs()
-
-  await page.getByRole('button', { name: 'Start Sketch' }).click()
-  await u.closeDebugPanel()
-
-  await expect(page).toHaveScreenshot({
-    maxDiffPixels: 100,
-  })
-})
+test.setTimeout(60_000)
 
 test('exports of each format should work', async ({ page, context }) => {
   // FYI this test doesn't work with only engine running locally
@@ -179,8 +90,6 @@ const part001 = startSketchOn('-XZ')
   await page.waitForTimeout(1000)
   await u.clearAndCloseDebugPanel()
 
-  await page.getByRole('button', { name: APP_NAME }).click()
-
   interface Paths {
     modelPath: string
     imagePath: string
@@ -189,19 +98,50 @@ const part001 = startSketchOn('-XZ')
   const doExport = async (
     output: Models['OutputFormat_type']
   ): Promise<Paths> => {
-    await page.getByRole('button', { name: 'Export Model' }).click()
-
-    const exportSelect = page.getByTestId('export-type')
-    await exportSelect.selectOption({ label: output.type })
+    await page.getByRole('button', { name: APP_NAME }).click()
+    await expect(
+      page.getByRole('button', { name: 'Export Part' })
+    ).toBeVisible()
+    await page.getByRole('button', { name: 'Export Part' }).click()
+    await expect(page.getByTestId('command-bar')).toBeVisible()
 
+    // Go through export via command bar
+    await page.getByRole('option', { name: output.type, exact: false }).click()
+    await page.locator('#arg-form').waitFor({ state: 'detached' })
     if ('storage' in output) {
-      const storageSelect = page.getByTestId('export-storage')
-      await storageSelect.selectOption({ label: output.storage })
+      await page.getByTestId('arg-name-storage').waitFor({ timeout: 1000 })
+      await page.getByRole('button', { name: 'storage', exact: false }).click()
+      await page
+        .getByRole('option', { name: output.storage, exact: false })
+        .click()
+      await page.locator('#arg-form').waitFor({ state: 'detached' })
+    }
+    await expect(page.getByText('Confirm Export')).toBeVisible()
+
+    const getPromiseAndResolve = () => {
+      let resolve: any = () => {}
+      const promise = new Promise<Download>((r) => {
+        resolve = r
+      })
+      return [promise, resolve]
     }
 
-    const downloadPromise = page.waitForEvent('download')
-    await page.getByRole('button', { name: 'Export', exact: true }).click()
-    const download = await downloadPromise
+    const [downloadPromise1, downloadResolve1] = getPromiseAndResolve()
+    const [downloadPromise2, downloadResolve2] = getPromiseAndResolve()
+    let downloadCnt = 0
+
+    page.on('download', async (download) => {
+      if (downloadCnt === 0) {
+        downloadResolve1(download)
+      } else if (downloadCnt === 1) {
+        downloadResolve2(download)
+      }
+      downloadCnt++
+    })
+    await page.getByRole('button', { name: 'Submit command' }).click()
+
+    // Handle download
+    const download = await downloadPromise1
     const downloadLocationer = (extra = '', isImage = false) =>
       `./e2e/playwright/export-snapshots/${output.type}-${
         'storage' in output ? output.storage : ''
@@ -211,7 +151,7 @@ const part001 = startSketchOn('-XZ')
 
     if (output.type === 'gltf' && output.storage === 'standard') {
       // wait for second download
-      const download2 = await page.waitForEvent('download')
+      const download2 = await downloadPromise2
       await download.saveAs(downloadLocation)
       await download2.saveAs(downloadLocation2)
 
@@ -384,13 +324,13 @@ test('extrude on each default plane should be stable', async ({
 }) => {
   const u = getUtils(page)
   const makeCode = (plane = 'XY') => `const part001 = startSketchOn('${plane}')
-  |> startProfileAt([0.70, 0.44], %)
-  |> line([0.66, -0.02], %)
-  |> line([0.28, 0.50], %)
-  |> line([-0.56, 0.44], %)
-  |> line([-0.54, -0.38], %)
+  |> startProfileAt([7.00, 4.40], %)
+  |> line([6.60, -0.20], %)
+  |> line([2.80, 5.00], %)
+  |> line([-5.60, 4.40], %)
+  |> line([-5.40, -3.80], %)
   |> close(%)
-  |> extrude(1.00, %)
+  |> extrude(10.00, %)
 `
   await context.addInitScript(async (code) => {
     localStorage.setItem('persistCode', code)
@@ -484,7 +424,7 @@ test('Draft segments should look right', async ({ page, context }) => {
   await page.mouse.click(startXPx + PUR * 10, 500 - PUR * 10)
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-  |> startProfileAt([0.93, -1.26], %)`)
+  |> startProfileAt([9.06, -12.22], %)`)
   await page.waitForTimeout(100)
 
   await u.closeDebugPanel()
@@ -498,8 +438,8 @@ test('Draft segments should look right', async ({ page, context }) => {
 
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-  |> startProfileAt([0.93, -1.26], %)
-  |> line([0.95, 0], %)`)
+  |> startProfileAt([9.06, -12.22], %)
+  |> line([9.14, 0], %)`)
 
   await page.getByRole('button', { name: 'Tangential Arc' }).click()
 
@@ -562,7 +502,7 @@ test('Client side scene scale should match engine scale inch', async ({
   await page.mouse.click(startXPx + PUR * 10, 500 - PUR * 10)
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-|> startProfileAt([0.93, -1.26], %)`)
+|> startProfileAt([9.06, -12.22], %)`)
   await page.waitForTimeout(100)
 
   await u.closeDebugPanel()
@@ -572,8 +512,8 @@ test('Client side scene scale should match engine scale inch', async ({
 
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-|> startProfileAt([0.93, -1.26], %)
-|> line([0.95, 0], %)`)
+|> startProfileAt([9.06, -12.22], %)
+|> line([9.14, 0], %)`)
 
   await page.getByRole('button', { name: 'Tangential Arc' }).click()
   await page.waitForTimeout(100)
@@ -582,9 +522,13 @@ test('Client side scene scale should match engine scale inch', async ({
 
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-|> startProfileAt([0.93, -1.26], %)
-|> line([0.95, 0], %)
-|> tangentialArcTo([2.82, -0.32], %)`)
+|> startProfileAt([9.06, -12.22], %)
+|> line([9.14, 0], %)
+|> tangentialArcTo([27.34, -3.08], %)`)
+
+  // click tangential arc tool again to unequip it
+  await page.getByRole('button', { name: 'Tangential Arc' }).click()
+  await page.waitForTimeout(100)
 
   // screen shot should show the sketch
   await expect(page).toHaveScreenshot({
@@ -658,7 +602,7 @@ test('Client side scene scale should match engine scale mm', async ({
   await page.mouse.click(startXPx + PUR * 10, 500 - PUR * 10)
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-  |> startProfileAt([0.93, -1.26], %)`)
+  |> startProfileAt([230.03, -310.33], %)`)
   await page.waitForTimeout(100)
 
   await u.closeDebugPanel()
@@ -668,8 +612,8 @@ test('Client side scene scale should match engine scale mm', async ({
 
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-  |> startProfileAt([0.93, -1.26], %)
-  |> line([0.95, 0], %)`)
+  |> startProfileAt([230.03, -310.33], %)
+  |> line([232.2, 0], %)`)
 
   await page.getByRole('button', { name: 'Tangential Arc' }).click()
   await page.waitForTimeout(100)
@@ -678,9 +622,12 @@ test('Client side scene scale should match engine scale mm', async ({
 
   await expect(page.locator('.cm-content'))
     .toHaveText(`const part001 = startSketchOn('-XZ')
-  |> startProfileAt([0.93, -1.26], %)
-  |> line([0.95, 0], %)
-  |> tangentialArcTo([2.82, -0.32], %)`)
+  |> startProfileAt([230.03, -310.33], %)
+  |> line([232.2, 0], %)
+  |> tangentialArcTo([694.43, -78.12], %)`)
+
+  await page.getByRole('button', { name: 'Tangential Arc' }).click()
+  await page.waitForTimeout(100)
 
   // screen shot should show the sketch
   await expect(page).toHaveScreenshot({

package.json

@@ -1,6 +1,6 @@
 {
   "name": "untitled-app",
-  "version": "0.15.4",
+  "version": "0.15.6",
   "private": true,
   "dependencies": {
     "@codemirror/autocomplete": "^6.10.2",
@@ -10,7 +10,7 @@
     "@fortawesome/react-fontawesome": "^0.2.0",
     "@headlessui/react": "^1.7.17",
     "@headlessui/tailwindcss": "^0.2.0",
-    "@kittycad/lib": "^0.0.54",
+    "@kittycad/lib": "^0.0.55",
     "@lezer/javascript": "^1.4.9",
     "@open-rpc/client-js": "^1.8.1",
     "@react-hook/resize-observer": "^1.2.6",

public/announce_release.py

@@ -1,16 +1,34 @@
-import requests
+import re
 import os
+import requests
 
 webhook_url = os.getenv('DISCORD_WEBHOOK_URL')
 release_version = os.getenv('RELEASE_VERSION')
 release_body = os.getenv('RELEASE_BODY')
 
-# message to send to Discord
+# Regular expression to match URLs
+url_pattern = r'(http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\\(\\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)'
+
+# Function to encase URLs in <>
+def encase_urls_with_angle_brackets(match):
+    url = match.group(0)
+    return f'<{url}>'
+
+# Replace all URLs in the release_body with their <> enclosed version
+modified_release_body = re.sub(url_pattern, encase_urls_with_angle_brackets, release_body)
+
+# Ensure the modified_release_body does not exceed Discord's character limit
+max_length = 500  # Adjust as needed
+if len(modified_release_body) > max_length:
+    modified_release_body = modified_release_body[:max_length].rsplit(' ', 1)[0]  # Avoid cutting off in the middle of a word
+    modified_release_body += "... for full changelog, check out the link above."
+
+# Message to send to Discord
 data = {
     "content": 
         f'''
-        **{release_version}** is now available! Check out the latest features and improvements here: https://zoo.dev/modeling-app/download
-        {release_body}
+        **{release_version}** is now available! Check out the latest features and improvements here: <https://zoo.dev/modeling-app/download>
+        {modified_release_body}
         ''',
     "username": "Modeling App Release Updates",
     "avatar_url": "https://raw.githubusercontent.com/KittyCAD/modeling-app/main/public/discord-avatar.png"
@@ -23,4 +41,7 @@ response = requests.post(webhook_url, json=data)
 if response.status_code == 204:
     print("Successfully sent the message to Discord.")
 else:
-    print("Failed to send the message to Discord.")
+    print(f"Failed to send the message to Discord. Status code: {response.status_code}, Response: {response.text}")
+
+print(modified_release_body)
+print(data["content"])

src-tauri/Cargo.lock

@@ -1664,9 +1664,9 @@ dependencies = [
 
 [[package]]
 name = "kittycad"
-version = "0.2.53"
+version = "0.2.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a086e1a1bbddb3b38959c0f0ce6de6b3a3b7566e38e0b7d5fb101e91911beed4"
+checksum = "4080db4364c103601db486e4a8aa889ea56c011991e4c454373d8050a165d3da"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -1934,9 +1934,9 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.9"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dce281c5e46beae905d4de1870d8b1509a9142b62eedf18b443b011ca8343d0"
+checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
  "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
@@ -3275,10 +3275,11 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.114"
+version = "1.0.112"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5f09b1bd632ef549eaa9f60a1f8de742bdbc698e6cee2095fc84dde5f549ae0"
+checksum = "4d1bd37ce2324cf3bf85e5a25f96eb4baf0d5aa6eba43e7ae8958870c4ec48ed"
 dependencies = [
+ "indexmap 2.0.0",
  "itoa 1.0.6",
  "ryu",
  "serde",
@@ -3760,14 +3761,15 @@ dependencies = [
 
 [[package]]
 name = "tauri"
-version = "1.5.4"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd27c04b9543776a972c86ccf70660b517ecabbeced9fb58d8b961a13ad129af"
+checksum = "0da520ff07c0745199204f7a7a62a8c6ee1666313b792b051ca170eca04649aa"
 dependencies = [
  "anyhow",
  "bytes",
  "cocoa",
  "dirs-next",
+ "dunce",
  "embed_plist",
  "encoding_rs",
  "flate2",
@@ -3778,6 +3780,7 @@ dependencies = [
  "heck 0.4.1",
  "http",
  "ignore",
+ "indexmap 1.9.3",
  "objc",
  "once_cell",
  "open",
@@ -3872,7 +3875,7 @@ dependencies = [
 [[package]]
 name = "tauri-plugin-fs-extra"
 version = "0.0.0"
-source = "git+https://github.com/tauri-apps/plugins-workspace?branch=v1#ed682dd96eb765e7cd3cdbc3cc64f794a0d6f9df"
+source = "git+https://github.com/tauri-apps/plugins-workspace?branch=v1#19aa2204115e7304681cb40faf7512aba525bc5e"
 dependencies = [
  "log",
  "serde",
@@ -3904,9 +3907,9 @@ dependencies = [
 
 [[package]]
 name = "tauri-runtime-wry"
-version = "0.14.3"
+version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6cae61fbc731f690a4899681c9052dde6d05b159b44563ace8186fc1bfb7d158"
+checksum = "067c56fc153b3caf406d7cd6de4486c80d1d66c0f414f39e94cb2f5543f6445f"
 dependencies = [
  "cocoa",
  "gtk",
@@ -3924,9 +3927,9 @@ dependencies = [
 
 [[package]]
 name = "tauri-utils"
-version = "1.5.2"
+version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ece74810b1d3d44f29f732a7ae09a63183d63949bbdd59c61f8ed2a1b70150db"
+checksum = "75ad0bbb31fccd1f4c56275d0a5c3abdf1f59999f72cb4ef8b79b4ed42082a21"
 dependencies = [
  "brotli",
  "ctor",

src-tauri/Cargo.toml

@@ -16,11 +16,11 @@ tauri-build = { version = "1.5.1", features = [] }
 
 [dependencies]
 anyhow = "1"
-kittycad = "0.2.53"
+kittycad = "0.2.59"
 oauth2 = "4.4.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-tauri = { version = "1.5.4", features = [ "os-all", "dialog-all", "fs-all", "http-request", "path-all", "shell-open", "shell-open-api", "devtools"] }
+tauri = { version = "1.6.0", features = [ "os-all", "dialog-all", "fs-all", "http-request", "path-all", "shell-open", "shell-open-api", "devtools"] }
 tauri-plugin-fs-extra = { git = "https://github.com/tauri-apps/plugins-workspace", branch = "v1" }
 tokio = { version = "1.36.0", features = ["time"] }
 toml = "0.8.2"

src-tauri/src/main.rs

@@ -7,7 +7,6 @@ use std::io::Read;
 
 use anyhow::Result;
 use oauth2::TokenResponse;
-use std::process::Command;
 use tauri::{InvokeError, Manager};
 const DEFAULT_HOST: &str = "https://api.kittycad.io";
 

src-tauri/tauri.conf.json

@@ -7,7 +7,7 @@
   },
   "package": {
     "productName": "zoo-modeling-app",
-    "version": "0.15.4"
+    "version": "0.15.6"
   },
   "tauri": {
     "allowlist": {

src/Router.tsx

@@ -3,15 +3,8 @@ import {
   createBrowserRouter,
   Outlet,
   redirect,
-  useLocation,
   RouterProvider,
 } from 'react-router-dom'
-import {
-  matchRoutes,
-  createRoutesFromChildren,
-  useNavigationType,
-} from 'react-router'
-import { useEffect } from 'react'
 import { ErrorPage } from './components/ErrorPage'
 import { Settings } from './routes/Settings'
 import Onboarding, { onboardingRoutes } from './routes/Onboarding'

src/clientSideScene/CameraControls.ts

@@ -16,7 +16,11 @@ import {
   SKETCH_LAYER,
   ZOOM_MAGIC_NUMBER,
 } from './sceneInfra'
-import { EngineCommand, engineCommandManager } from 'lang/std/engineConnection'
+import {
+  EngineCommand,
+  Subscription,
+  engineCommandManager,
+} from 'lang/std/engineConnection'
 import { v4 as uuidv4 } from 'uuid'
 import { deg2Rad } from 'lib/utils2d'
 import { isReducedMotion, roundOff, throttle } from 'lib/utils'
@@ -28,6 +32,12 @@ const FRAMES_TO_ANIMATE_IN = 30
 
 const tempQuaternion = new Quaternion() // just used for maths
 
+type interactionType = 'pan' | 'rotate' | 'zoom'
+
+const throttledEngCmd = throttle((cmd: EngineCommand) => {
+  engineCommandManager.sendSceneCommand(cmd)
+}, 1000 / 15)
+
 interface ThreeCamValues {
   position: Vector3
   quaternion: Quaternion
@@ -110,10 +120,11 @@ const throttledUpdateEngineFov = throttle(
       lastCmdDelay
     ) as any as number
   },
-  1000 / 15
+  1000 / 30
 )
 
 export class CameraControls {
+  syncDirection: 'clientToEngine' | 'engineToClient' = 'engineToClient'
   camera: PerspectiveCamera | OrthographicCamera
   target: Vector3
   domElement: HTMLCanvasElement
@@ -198,6 +209,7 @@ export class CameraControls {
       this.camera.zoom = camProps.zoom || 1
     }
     this.camera.updateProjectionMatrix()
+    console.log('doing this thing', camProps)
     this.update(true)
   }
 
@@ -221,6 +233,45 @@ export class CameraControls {
 
     this.update()
     this._usePerspectiveCamera()
+
+    const cb: Subscription<
+      'default_camera_zoom' | 'camera_drag_end' | 'default_camera_get_settings'
+    >['callback'] = ({ data, type }) => {
+      const camSettings = data.settings
+      this.camera.position.set(
+        camSettings.pos.x,
+        camSettings.pos.y,
+        camSettings.pos.z
+      )
+      this.target.set(
+        camSettings.center.x,
+        camSettings.center.y,
+        camSettings.center.z
+      )
+      if (this.camera instanceof PerspectiveCamera && camSettings.fov_y) {
+        this.camera.fov = camSettings.fov_y
+      } else if (
+        this.camera instanceof OrthographicCamera &&
+        camSettings.ortho_scale
+      ) {
+        this.camera.zoom = camSettings.ortho_scale
+      }
+      this.onCameraChange()
+    }
+    setTimeout(() => {
+      engineCommandManager.subscribeTo({
+        event: 'camera_drag_end',
+        callback: cb,
+      })
+      engineCommandManager.subscribeTo({
+        event: 'default_camera_zoom',
+        callback: cb,
+      })
+      engineCommandManager.subscribeTo({
+        event: 'default_camera_get_settings',
+        callback: cb,
+      })
+    })
   }
 
   private _isCamMovingCallback: (isMoving: boolean, isTween: boolean) => void =
@@ -254,7 +305,21 @@ export class CameraControls {
   onMouseDown = (event: MouseEvent) => {
     this.isDragging = true
     this.mouseDownPosition.set(event.clientX, event.clientY)
+    let interaction = this.getInteractionType(event)
+    if (interaction === 'none') return
     this.handleStart()
+
+    if (this.syncDirection === 'engineToClient') {
+      void engineCommandManager.sendSceneCommand({
+        type: 'modeling_cmd_req',
+        cmd: {
+          type: 'camera_drag_start',
+          interaction,
+          window: { x: event.clientX, y: event.clientY },
+        },
+        cmd_id: uuidv4(),
+      })
+    }
   }
 
   onMouseMove = (event: MouseEvent) => {
@@ -265,36 +330,34 @@ export class CameraControls {
         .sub(this.mouseDownPosition)
       this.mouseDownPosition.copy(this.mouseNewPosition)
 
-      let state: 'pan' | 'rotate' | 'zoom' = 'pan'
+      const interaction = this.getInteractionType(event)
+      if (interaction === 'none') return
 
-      if (this.interactionGuards.pan.callback(event as any)) {
-        if (this.enablePan === false) return
-        // handleMouseDownPan(event)
-        state = 'pan'
-      } else if (this.interactionGuards.rotate.callback(event as any)) {
-        if (this.enableRotate === false) return
-        // handleMouseDownRotate(event)
-        state = 'rotate'
-      } else if (this.interactionGuards.zoom.dragCallback(event as any)) {
-        if (this.enableZoom === false) return
-        // handleMouseDownDolly(event)
-        state = 'zoom'
-      } else {
+      if (this.syncDirection === 'engineToClient') {
+        throttledEngCmd({
+          type: 'modeling_cmd_req',
+          cmd: {
+            type: 'camera_drag_move',
+            interaction,
+            window: { x: event.clientX, y: event.clientY },
+          },
+          cmd_id: uuidv4(),
+        })
         return
       }
 
       // Implement camera movement logic here based on deltaMove
       // For example, for rotating the camera around the target:
-      if (state === 'rotate') {
+      if (interaction === 'rotate') {
         this.pendingRotation = this.pendingRotation
           ? this.pendingRotation
           : new Vector2()
         this.pendingRotation.x += deltaMove.x
         this.pendingRotation.y += deltaMove.y
-      } else if (state === 'zoom') {
+      } else if (interaction === 'zoom') {
         this.pendingZoom = this.pendingZoom ? this.pendingZoom : 1
         this.pendingZoom *= 1 + deltaMove.y * 0.01
-      } else if (state === 'pan') {
+      } else if (interaction === 'pan') {
         this.pendingPan = this.pendingPan ? this.pendingPan : new Vector2()
         let distance = this.camera.position.distanceTo(this.target)
         if (this.camera instanceof OrthographicCamera) {
@@ -311,11 +374,45 @@ export class CameraControls {
   onMouseUp = (event: MouseEvent) => {
     this.isDragging = false
     this.handleEnd()
+    if (this.syncDirection === 'engineToClient') {
+      const interaction = this.getInteractionType(event)
+      if (interaction === 'none') return
+      void engineCommandManager.sendSceneCommand({
+        type: 'modeling_cmd_req',
+        cmd: {
+          type: 'camera_drag_end',
+          interaction,
+          window: { x: event.clientX, y: event.clientY },
+        },
+        cmd_id: uuidv4(),
+      })
+    }
   }
 
   onMouseWheel = (event: WheelEvent) => {
     // Assume trackpad if the deltas are small and integers
     this.handleStart()
+
+    if (this.syncDirection === 'engineToClient') {
+      const interactions = this.interactionGuards.zoom.scrollCallback(
+        event as any
+      )
+      if (!interactions) {
+        this.handleEnd()
+        return
+      }
+      throttledEngCmd({
+        type: 'modeling_cmd_req',
+        cmd: {
+          type: 'default_camera_zoom',
+          magnitude: -event.deltaY * 0.4,
+        },
+        cmd_id: uuidv4(),
+      })
+      this.handleEnd()
+      return
+    }
+
     const isTrackpad = Math.abs(event.deltaY) <= 1 || event.deltaY % 1 === 0
 
     const zoomSpeed = isTrackpad ? 0.02 : 0.1 // Reduced zoom speed for trackpad
@@ -473,7 +570,7 @@ export class CameraControls {
   update = (forceUpdate = false) => {
     // If there are any changes that need to be applied to the camera, apply them here.
 
-    let didChange = forceUpdate
+    let didChange = false
     if (this.pendingRotation) {
       this.rotateCamera(this.pendingRotation.x, this.pendingRotation.y)
       this.pendingRotation = null // Clear the pending rotation after applying it
@@ -525,8 +622,8 @@ export class CameraControls {
 
     // Update the camera's matrices
     this.camera.updateMatrixWorld()
-    if (didChange) {
-      this.onCameraChange()
+    if (didChange || forceUpdate) {
+      this.onCameraChange(forceUpdate)
     }
 
     // damping would be implemented here in update if we choose to add it.
@@ -637,6 +734,10 @@ export class CameraControls {
     duration = 500,
     toOrthographic = true
   ): Promise<void> {
+    if (this.syncDirection === 'engineToClient')
+      console.warn(
+        'tweenCameraToQuaternion not design to work with engineToClient syncDirection.'
+      )
     const isVertical = isQuaternionVertical(targetQuaternion)
     let remainingDuration = duration
     if (isVertical) {
@@ -719,6 +820,10 @@ export class CameraControls {
 
   animateToOrthographic = () =>
     new Promise((resolve) => {
+      if (this.syncDirection === 'engineToClient')
+        console.warn(
+          'animate To Orthographic not design to work with engineToClient syncDirection.'
+        )
       this.isFovAnimationInProgress = true
       let currentFov = this.lastPerspectiveFov
       this.fovBeforeOrtho = currentFov
@@ -752,6 +857,10 @@ export class CameraControls {
     })
   animateToPerspective = () =>
     new Promise((resolve) => {
+      if (this.syncDirection === 'engineToClient')
+        console.warn(
+          'animate To Perspective not design to work with engineToClient syncDirection.'
+        )
       this.isFovAnimationInProgress = true
       // Immediately set the camera to perspective with a very low FOV
       const targetFov = this.fovBeforeOrtho // Target FOV for perspective
@@ -790,7 +899,7 @@ export class CameraControls {
     this.reactCameraPropertiesCallback(a)
   }, 200)
 
-  onCameraChange = () => {
+  onCameraChange = (forceUpdate = false) => {
     const distance = this.target.distanceTo(this.camera.position)
     if (this.camera.far / 2.1 < distance || this.camera.far / 1.9 > distance) {
       this.camera.far = distance * 2
@@ -798,13 +907,14 @@ export class CameraControls {
       this.camera.updateProjectionMatrix()
     }
 
-    throttledUpdateEngineCamera({
-      quaternion: this.camera.quaternion,
-      position: this.camera.position,
-      zoom: this.camera.zoom,
-      isPerspective: this.isPerspective,
-      target: this.target,
-    })
+    if (this.syncDirection === 'clientToEngine' || forceUpdate)
+      throttledUpdateEngineCamera({
+        quaternion: this.camera.quaternion,
+        position: this.camera.position,
+        zoom: this.camera.zoom,
+        isPerspective: this.isPerspective,
+        target: this.target,
+      })
     this.deferReactUpdate({
       type: this.isPerspective ? 'perspective' : 'orthographic',
       [this.isPerspective ? 'fov' : 'zoom']:
@@ -825,9 +935,18 @@ export class CameraControls {
     })
     Object.values(this._camChangeCallbacks).forEach((cb) => cb())
   }
+  getInteractionType = (event: any) =>
+    _getInteractionType(
+      this.interactionGuards,
+      event,
+      this.enablePan,
+      this.enableRotate,
+      this.enableZoom
+    )
 }
 
-// currently duplicated, delete one
+// Pure function helpers
+
 function calculateNearFarFromFOV(fov: number) {
   const nearFarRatio = (fov - 3) / (45 - 3)
   // const z_near = 0.1 + nearFarRatio * (5 - 0.1)
@@ -835,7 +954,6 @@ function calculateNearFarFromFOV(fov: number) {
   return { z_near: 0.1, z_far }
 }
 
-// currently duplicated, delete one
 function convertThreeCamValuesToEngineCam({
   target,
   position,
@@ -876,8 +994,6 @@ function convertThreeCamValuesToEngineCam({
   }
 }
 
-// Pure function helpers
-
 function _lookAt(position: Vector3, target: Vector3, up: Vector3): Quaternion {
   // Direction from position to target, normalized.
   let direction = new Vector3().subVectors(target, position).normalize()
@@ -896,3 +1012,17 @@ function _lookAt(position: Vector3, target: Vector3, up: Vector3): Quaternion {
 
   return quaternion
 }
+
+function _getInteractionType(
+  interactionGuards: MouseGuard,
+  event: any,
+  enablePan: boolean,
+  enableRotate: boolean,
+  enableZoom: boolean
+): interactionType | 'none' {
+  let state: interactionType | 'none' = 'none'
+  if (enablePan && interactionGuards.pan.callback(event)) return 'pan'
+  if (enableRotate && interactionGuards.rotate.callback(event)) return 'rotate'
+  if (enableZoom && interactionGuards.zoom.dragCallback(event)) return 'zoom'
+  return state
+}

src/clientSideScene/sceneEntities.ts

@@ -3,10 +3,13 @@ import {
   DoubleSide,
   ExtrudeGeometry,
   Group,
+  Intersection,
   LineCurve3,
   Matrix4,
   Mesh,
   MeshBasicMaterial,
+  Object3D,
+  Object3DEventMap,
   OrthographicCamera,
   PerspectiveCamera,
   PlaneGeometry,
@@ -24,6 +27,7 @@ import {
   defaultPlaneColor,
   getSceneScale,
   INTERSECTION_PLANE_LAYER,
+  OnMouseEnterLeaveArgs,
   RAYCASTABLE_PLANE,
   sceneInfra,
   SKETCH_GROUP_SEGMENTS,
@@ -56,6 +60,7 @@ import { engineCommandManager } from 'lang/std/engineConnection'
 import {
   createArcGeometry,
   dashedStraight,
+  profileStart,
   straightSegment,
   tangentialArcToSegment,
 } from './segments'
@@ -63,7 +68,7 @@ import {
   addCloseToPipe,
   addNewSketchLn,
   changeSketchArguments,
-  compareVec2Epsilon2,
+  updateStartProfileAtArgs,
 } from 'lang/std/sketch'
 import { isReducedMotion, throttle } from 'lib/utils'
 import {
@@ -85,6 +90,7 @@ export const TANGENTIAL_ARC_TO_SEGMENT = 'tangential-arc-to-segment'
 export const TANGENTIAL_ARC_TO_SEGMENT_BODY = 'tangential-arc-to-segment-body'
 export const TANGENTIAL_ARC_TO__SEGMENT_DASH =
   'tangential-arc-to-segment-body-dashed'
+export const PROFILE_START = 'profile-start'
 
 // This singleton Class is responsible for all of the things the user sees and interacts with.
 // That mostly mean sketch elements.
@@ -137,6 +143,9 @@ class SceneEntities {
           scale: factor,
         })
       }
+      if (segment.name === PROFILE_START) {
+        segment.scale.set(factor, factor, factor)
+      }
     })
     if (this.axisGroup) {
       const factor =
@@ -293,14 +302,51 @@ class SceneEntities {
         ? orthoFactor
         : perspScale(sceneInfra.camControls.camera, dummy)) /
       sceneInfra._baseUnitMultiplier
+
+    const segPathToNode = getNodePathFromSourceRange(
+      kclManager.ast,
+      sketchGroup.start.__geoMeta.sourceRange
+    )
+    const _profileStart = profileStart({
+      from: sketchGroup.start.from,
+      id: sketchGroup.start.__geoMeta.id,
+      pathToNode: segPathToNode,
+      scale: factor,
+    })
+    _profileStart.layers.set(SKETCH_LAYER)
+    _profileStart.traverse((child) => {
+      child.layers.set(SKETCH_LAYER)
+    })
+    group.add(_profileStart)
+    this.activeSegments[JSON.stringify(segPathToNode)] = _profileStart
+
     sketchGroup.value.forEach((segment, index) => {
       let segPathToNode = getNodePathFromSourceRange(
-        draftSegment ? truncatedAst : kclManager.ast,
+        kclManager.ast,
         segment.__geoMeta.sourceRange
       )
+      if (draftSegment && (sketchGroup.value[index - 1] || sketchGroup.start)) {
+        const previousSegment =
+          sketchGroup.value[index - 1] || sketchGroup.start
+        const previousSegmentPathToNode = getNodePathFromSourceRange(
+          kclManager.ast,
+          previousSegment.__geoMeta.sourceRange
+        )
+        const bodyIndex = previousSegmentPathToNode[1][0]
+        segPathToNode = getNodePathFromSourceRange(
+          truncatedAst,
+          segment.__geoMeta.sourceRange
+        )
+        segPathToNode[1][0] = bodyIndex
+      }
       const isDraftSegment =
         draftSegment && index === sketchGroup.value.length - 1
       let seg
+      const callExpName = getNodeFromPath<CallExpression>(
+        kclManager.ast,
+        segPathToNode,
+        'CallExpression'
+      )?.node?.callee?.name
       if (segment.type === 'TangentialArcTo') {
         seg = tangentialArcToSegment({
           prevSegment: sketchGroup.value[index - 1],
@@ -319,6 +365,7 @@ class SceneEntities {
           pathToNode: segPathToNode,
           isDraftSegment,
           scale: factor,
+          callExpName,
         })
       }
       seg.layers.set(SKETCH_LAYER)
@@ -340,17 +387,19 @@ class SceneEntities {
     this.scene.add(group)
     if (!draftSegment) {
       sceneInfra.setCallbacks({
-        onDrag: (args) => {
-          if (args.event.which !== 1) return
+        onDrag: ({ selected, intersectionPoint, mouseEvent, intersects }) => {
+          if (mouseEvent.which !== 1) return
           this.onDragSegment({
-            ...args,
+            object: selected,
+            intersection2d: intersectionPoint.twoD,
+            intersects,
             sketchPathToNode,
           })
         },
         onMove: () => {},
         onClick: (args) => {
-          if (args?.event.which !== 1) return
-          if (!args || !args.object) {
+          if (args?.mouseEvent.which !== 1) return
+          if (!args || !args.selected) {
             sceneInfra.modelingSend({
               type: 'Set selection',
               data: {
@@ -359,73 +408,32 @@ class SceneEntities {
             })
             return
           }
-          const { object } = args
-          const event = getEventForSegmentSelection(object)
+          const { selected } = args
+          const event = getEventForSegmentSelection(selected)
           if (!event) return
           sceneInfra.modelingSend(event)
         },
-        onMouseEnter: ({ object }) => {
-          // TODO change the color of the segment to yellow?
-          // Give a few pixels grace around each of the segments
-          // for hover.
-          if ([X_AXIS, Y_AXIS].includes(object?.userData?.type)) {
-            const obj = object as Mesh
-            const mat = obj.material as MeshBasicMaterial
-            mat.color.set(obj.userData.baseColor)
-            mat.color.offsetHSL(0, 0, 0.5)
-          }
-          const parent = getParentGroup(object)
-          if (parent?.userData?.pathToNode) {
-            const updatedAst = parse(recast(kclManager.ast))
-            const node = getNodeFromPath<CallExpression>(
-              updatedAst,
-              parent.userData.pathToNode,
-              'CallExpression'
-            ).node
-            sceneInfra.highlightCallback([node.start, node.end])
-            const yellow = 0xffff00
-            colorSegment(object, yellow)
-            return
-          }
-          sceneInfra.highlightCallback([0, 0])
-        },
-        onMouseLeave: ({ object }) => {
-          sceneInfra.highlightCallback([0, 0])
-          const parent = getParentGroup(object)
-          const isSelected = parent?.userData?.isSelected
-          colorSegment(object, isSelected ? 0x0000ff : 0xffffff)
-          if ([X_AXIS, Y_AXIS].includes(object?.userData?.type)) {
-            const obj = object as Mesh
-            const mat = obj.material as MeshBasicMaterial
-            mat.color.set(obj.userData.baseColor)
-            if (obj.userData.isSelected) mat.color.offsetHSL(0, 0, 0.2)
-          }
-        },
+        ...mouseEnterLeaveCallbacks(),
       })
     } else {
       sceneInfra.setCallbacks({
-        onDrag: () => {},
         onClick: async (args) => {
           if (!args) return
-          if (args.event.which !== 1) return
-          const { intersection2d } = args
-          if (!intersection2d) return
+          if (args.mouseEvent.which !== 1) return
+          const { intersectionPoint } = args
+          let intersection2d = intersectionPoint?.twoD
+          const profileStart = args.intersects
+            .map(({ object }) => getParentGroup(object, [PROFILE_START]))
+            .find((a) => a?.name === PROFILE_START)
 
-          const firstSeg = sketchGroup.value[0]
-          const isClosingSketch = compareVec2Epsilon2(
-            firstSeg.from,
-            [intersection2d.x, intersection2d.y],
-            0.5
-          )
           let modifiedAst
-          if (isClosingSketch) {
-            // TODO close needs a better UX
+          if (profileStart) {
             modifiedAst = addCloseToPipe({
               node: kclManager.ast,
               programMemory: kclManager.programMemory,
               pathToNode: sketchPathToNode,
             })
-          } else {
+          } else if (intersection2d) {
             const lastSegment = sketchGroup.value.slice(-1)[0]
             modifiedAst = addNewSketchLn({
               node: kclManager.ast,
@@ -438,6 +446,9 @@ class SceneEntities {
                   : 'line',
               pathToNode: sketchPathToNode,
             }).modifiedAst
+          } else {
+            // return early as we didn't modify the ast
+            return
           }
 
           kclManager.executeAstMock(modifiedAst, { updates: 'code' })
@@ -446,8 +457,9 @@ class SceneEntities {
         },
         onMove: (args) => {
           this.onDragSegment({
-            ...args,
+            intersection2d: args.intersectionPoint.twoD,
             object: Object.values(this.activeSegments).slice(-1)[0],
+            intersects: args.intersects,
             sketchPathToNode,
             draftInfo: {
               draftSegment,
@@ -457,6 +469,7 @@ class SceneEntities {
             },
           })
         },
+        ...mouseEnterLeaveCallbacks(),
       })
     }
     sceneInfra.camControls.enableRotate = false
@@ -493,17 +506,15 @@ class SceneEntities {
     )
   onDragSegment({
     object,
-    event,
-    intersectPoint,
-    intersection2d,
+    intersection2d: _intersection2d,
     sketchPathToNode,
     draftInfo,
+    intersects,
   }: {
     object: any
-    event: any
-    intersectPoint: Vector3
     intersection2d: Vector2
     sketchPathToNode: PathToNode
+    intersects: Intersection<Object3D<Object3DEventMap>>[]
     draftInfo?: {
       draftSegment: DraftSegment
       truncatedAst: Program
@@ -511,7 +522,20 @@ class SceneEntities {
       variableDeclarationName: string
     }
   }) {
-    const group = getParentGroup(object)
+    const profileStart =
+      draftInfo &&
+      intersects
+        .map(({ object }) => getParentGroup(object, [PROFILE_START]))
+        .find((a) => a?.name === PROFILE_START)
+    const intersection2d = profileStart
+      ? new Vector2(profileStart.position.x, profileStart.position.y)
+      : _intersection2d
+
+    const group = getParentGroup(object, [
+      STRAIGHT_SEGMENT,
+      TANGENTIAL_ARC_TO_SEGMENT,
+      PROFILE_START,
+    ])
     if (!group) return
     const pathToNode: PathToNode = JSON.parse(
       JSON.stringify(group.userData.pathToNode)
@@ -535,13 +559,28 @@ class SceneEntities {
     ).node
     if (node.type !== 'CallExpression') return
 
-    const modded = changeSketchArguments(
-      modifiedAst,
-      kclManager.programMemory,
-      [node.start, node.end],
-      to,
-      from
-    )
+    let modded: {
+      modifiedAst: Program
+      pathToNode: PathToNode
+    }
+    if (group.name === PROFILE_START) {
+      modded = updateStartProfileAtArgs({
+        node: modifiedAst,
+        pathToNode,
+        to,
+        from,
+        previousProgramMemory: kclManager.programMemory,
+      })
+    } else {
+      modded = changeSketchArguments(
+        modifiedAst,
+        kclManager.programMemory,
+        [node.start, node.end],
+        to,
+        from
+      )
+    }
+
     modifiedAst = modded.modifiedAst
     const { truncatedAst, programMemoryOverride, variableDeclarationName } =
       draftInfo
@@ -560,10 +599,16 @@ class SceneEntities {
         programMemoryOverride,
       })
       this.sceneProgramMemory = programMemory
-      const sketchGroup = programMemory.root[variableDeclarationName]
-        .value as Path[]
+      const sketchGroup = programMemory.root[
+        variableDeclarationName
+      ] as SketchGroup
+      const sgPaths = sketchGroup.value
       const orthoFactor = orthoScale(sceneInfra.camControls.camera)
-      sketchGroup.forEach((segment, index) => {
+
+      const updateSegment = (
+        segment: Path | SketchGroup['start'],
+        index: number
+      ) => {
         const segPathToNode = getNodePathFromSourceRange(
           modifiedAst,
           segment.__geoMeta.sourceRange
@@ -584,7 +629,7 @@ class SceneEntities {
           sceneInfra._baseUnitMultiplier
         if (type === TANGENTIAL_ARC_TO_SEGMENT) {
           this.updateTangentialArcToSegment({
-            prevSegment: sketchGroup[index - 1],
+            prevSegment: sgPaths[index - 1],
             from: segment.from,
             to: segment.to,
             group: group,
@@ -597,8 +642,13 @@ class SceneEntities {
             group: group,
             scale: factor,
           })
+        } else if (type === PROFILE_START) {
+          group.position.set(segment.from[0], segment.from[1], 0)
+          group.scale.set(factor, factor, factor)
         }
-      })
+      }
+      updateSegment(sketchGroup.start, 0)
+      sgPaths.forEach(updateSegment)
     })()
   }
 
@@ -618,9 +668,7 @@ class SceneEntities {
     group.userData.from = from
     group.userData.to = to
     group.userData.prevSegment = prevSegment
-    const arrowGroup = group.children.find(
-      (child) => child.userData.type === ARROWHEAD
-    ) as Group
+    const arrowGroup = group.getObjectByName(ARROWHEAD) as Group
 
     arrowGroup.position.set(to[0], to[1], 0)
 
@@ -695,20 +743,20 @@ class SceneEntities {
     const shape = new Shape()
     shape.moveTo(0, -0.08 * scale)
     shape.lineTo(0, 0.08 * scale) // The width of the line
-    const arrowGroup = group.children.find(
-      (child) => child.userData.type === ARROWHEAD
-    ) as Group
+    const arrowGroup = group.getObjectByName(ARROWHEAD) as Group
 
-    arrowGroup.position.set(to[0], to[1], 0)
+    if (arrowGroup) {
+      arrowGroup.position.set(to[0], to[1], 0)
 
-    const dir = new Vector3()
-      .subVectors(
-        new Vector3(to[0], to[1], 0),
-        new Vector3(from[0], from[1], 0)
-      )
-      .normalize()
-    arrowGroup.quaternion.setFromUnitVectors(new Vector3(0, 1, 0), dir)
-    arrowGroup.scale.set(scale, scale, scale)
+      const dir = new Vector3()
+        .subVectors(
+          new Vector3(to[0], to[1], 0),
+          new Vector3(from[0], from[1], 0)
+        )
+        .normalize()
+      arrowGroup.quaternion.setFromUnitVectors(new Vector3(0, 1, 0), dir)
+      arrowGroup.scale.set(scale, scale, scale)
+    }
 
     const straightSegmentBody = group.children.find(
       (child) => child.userData.type === STRAIGHT_SEGMENT_BODY
@@ -793,22 +841,24 @@ class SceneEntities {
   }
   setupDefaultPlaneHover() {
     sceneInfra.setCallbacks({
-      onMouseEnter: ({ object }) => {
-        if (object.parent.userData.type !== DEFAULT_PLANES) return
-        const type: DefaultPlane = object.userData.type
-        object.material.color = defaultPlaneColor(type, 0.5, 1)
+      onMouseEnter: ({ selected }) => {
+        if (!(selected instanceof Mesh && selected.parent)) return
+        if (selected.parent.userData.type !== DEFAULT_PLANES) return
+        const type: DefaultPlane = selected.userData.type
+        selected.material.color = defaultPlaneColor(type, 0.5, 1)
       },
-      onMouseLeave: ({ object }) => {
-        if (object.parent.userData.type !== DEFAULT_PLANES) return
-        const type: DefaultPlane = object.userData.type
-        object.material.color = defaultPlaneColor(type)
+      onMouseLeave: ({ selected }) => {
+        if (!(selected instanceof Mesh && selected.parent)) return
+        if (selected.parent.userData.type !== DEFAULT_PLANES) return
+        const type: DefaultPlane = selected.userData.type
+        selected.material.color = defaultPlaneColor(type)
       },
       onClick: (args) => {
-        if (!args || !args.object) return
-        if (args.event.which !== 1) return
-        const { intersection } = args
-        const type = intersection.object.name || ''
-        const posNorm = Number(intersection.normal?.z) > 0
+        if (!args || !args.intersects?.[0]) return
+        if (args.mouseEvent.which !== 1) return
+        const { intersects } = args
+        const type = intersects?.[0].object.name || ''
+        const posNorm = Number(intersects?.[0]?.normal?.z) > 0
         let planeString: DefaultPlaneStr = posNorm ? 'XY' : '-XY'
         let normal: [number, number, number] = posNorm ? [0, 0, 1] : [0, 0, -1]
         if (type === YZ_PLANE) {
@@ -980,9 +1030,9 @@ export function quaternionFromSketchGroup(
 }
 
 function colorSegment(object: any, color: number) {
-  const arrowHead = getParentGroup(object, [ARROWHEAD])
-  if (arrowHead) {
-    arrowHead.traverse((child) => {
+  const segmentHead = getParentGroup(object, [ARROWHEAD, PROFILE_START])
+  if (segmentHead) {
+    segmentHead.traverse((child) => {
       if (child instanceof Mesh) {
         child.material.color.set(color)
       }
@@ -1038,3 +1088,53 @@ function massageFormats(a: any): Vector3 {
     ? new Vector3(a[0], a[1], a[2])
     : new Vector3(a.x, a.y, a.z)
 }
+
+function mouseEnterLeaveCallbacks() {
+  return {
+    onMouseEnter: ({ selected }: OnMouseEnterLeaveArgs) => {
+      if ([X_AXIS, Y_AXIS].includes(selected?.userData?.type)) {
+        const obj = selected as Mesh
+        const mat = obj.material as MeshBasicMaterial
+        mat.color.set(obj.userData.baseColor)
+        mat.color.offsetHSL(0, 0, 0.5)
+      }
+      const parent = getParentGroup(selected, [
+        STRAIGHT_SEGMENT,
+        TANGENTIAL_ARC_TO_SEGMENT,
+        PROFILE_START,
+      ])
+      if (parent?.userData?.pathToNode) {
+        const updatedAst = parse(recast(kclManager.ast))
+        const node = getNodeFromPath<CallExpression>(
+          updatedAst,
+          parent.userData.pathToNode,
+          'CallExpression'
+        ).node
+        sceneInfra.highlightCallback([node.start, node.end])
+        const yellow = 0xffff00
+        colorSegment(selected, yellow)
+        return
+      }
+      sceneInfra.highlightCallback([0, 0])
+    },
+    onMouseLeave: ({ selected }: OnMouseEnterLeaveArgs) => {
+      sceneInfra.highlightCallback([0, 0])
+      const parent = getParentGroup(selected, [
+        STRAIGHT_SEGMENT,
+        TANGENTIAL_ARC_TO_SEGMENT,
+        PROFILE_START,
+      ])
+      const isSelected = parent?.userData?.isSelected
+      colorSegment(
+        selected,
+        isSelected ? 0x0000ff : parent?.userData?.baseColor || 0xffffff
+      )
+      if ([X_AXIS, Y_AXIS].includes(selected?.userData?.type)) {
+        const obj = selected as Mesh
+        const mat = obj.material as MeshBasicMaterial
+        mat.color.set(obj.userData.baseColor)
+        if (obj.userData.isSelected) mat.color.offsetHSL(0, 0, 0.2)
+      }
+    },
+  }
+}

src/clientSideScene/sceneInfra.ts

@@ -19,7 +19,7 @@ import {
   Object3D,
   Object3DEventMap,
 } from 'three'
-import { Coords2d, compareVec2Epsilon2 } from 'lang/std/sketch'
+import { compareVec2Epsilon2 } from 'lang/std/sketch'
 import { useModelingContext } from 'hooks/useModelingContext'
 import * as TWEEN from '@tweenjs/tween.js'
 import { SourceRange } from 'lang/wasm'
@@ -48,31 +48,36 @@ export const AXIS_GROUP = 'axisGroup'
 export const SKETCH_GROUP_SEGMENTS = 'sketch-group-segments'
 export const ARROWHEAD = 'arrowhead'
 
-interface BaseCallbackArgs2 {
-  object: any
-  event: any
-}
-interface BaseCallbackArgs {
-  event: any
-}
-interface OnDragCallbackArgs extends BaseCallbackArgs {
-  object: any
-  intersection2d: Vector2
-  intersectPoint: Vector3
-  intersection: Intersection<Object3D<Object3DEventMap>>
-}
-interface OnClickCallbackArgs extends BaseCallbackArgs {
-  intersection2d?: Vector2
-  intersectPoint: Vector3
-  intersection: Intersection<Object3D<Object3DEventMap>>
-  object?: any
+export interface OnMouseEnterLeaveArgs {
+  selected: Object3D<Object3DEventMap>
+  mouseEvent: MouseEvent
 }
 
-interface onMoveCallbackArgs {
-  event: any
-  intersection2d: Vector2
-  intersectPoint: Vector3
-  intersection: Intersection<Object3D<Object3DEventMap>>
+interface OnDragCallbackArgs extends OnMouseEnterLeaveArgs {
+  intersectionPoint: {
+    twoD: Vector2
+    threeD: Vector3
+  }
+  intersects: Intersection<Object3D<Object3DEventMap>>[]
+}
+interface OnClickCallbackArgs {
+  mouseEvent: MouseEvent
+  intersectionPoint?: {
+    twoD: Vector2
+    threeD: Vector3
+  }
+  intersects: Intersection<Object3D<Object3DEventMap>>[]
+  selected?: Object3D<Object3DEventMap>
+}
+
+interface OnMoveCallbackArgs {
+  mouseEvent: MouseEvent
+  intersectionPoint: {
+    twoD: Vector2
+    threeD: Vector3
+  }
+  intersects: Intersection<Object3D<Object3DEventMap>>[]
+  selected?: Object3D<Object3DEventMap>
 }
 
 // This singleton class is responsible for all of the under the hood setup for the client side scene.
@@ -90,16 +95,16 @@ class SceneInfra {
   _baseUnit: BaseUnit = 'mm'
   _baseUnitMultiplier = 1
   onDragCallback: (arg: OnDragCallbackArgs) => void = () => {}
-  onMoveCallback: (arg: onMoveCallbackArgs) => void = () => {}
+  onMoveCallback: (arg: OnMoveCallbackArgs) => void = () => {}
   onClickCallback: (arg?: OnClickCallbackArgs) => void = () => {}
-  onMouseEnter: (arg: BaseCallbackArgs2) => void = () => {}
-  onMouseLeave: (arg: BaseCallbackArgs2) => void = () => {}
+  onMouseEnter: (arg: OnMouseEnterLeaveArgs) => void = () => {}
+  onMouseLeave: (arg: OnMouseEnterLeaveArgs) => void = () => {}
   setCallbacks = (callbacks: {
     onDrag?: (arg: OnDragCallbackArgs) => void
-    onMove?: (arg: onMoveCallbackArgs) => void
+    onMove?: (arg: OnMoveCallbackArgs) => void
     onClick?: (arg?: OnClickCallbackArgs) => void
-    onMouseEnter?: (arg: BaseCallbackArgs2) => void
-    onMouseLeave?: (arg: BaseCallbackArgs2) => void
+    onMouseEnter?: (arg: OnMouseEnterLeaveArgs) => void
+    onMouseLeave?: (arg: OnMouseEnterLeaveArgs) => void
   }) => {
     this.onDragCallback = callbacks.onDrag || this.onDragCallback
     this.onMoveCallback = callbacks.onMove || this.onMoveCallback
@@ -142,10 +147,9 @@ class SceneInfra {
   currentMouseVector = new Vector2()
   selected: {
     mouseDownVector: Vector2
-    object: any
+    object: Object3D<Object3DEventMap>
     hasBeenDragged: boolean
   } | null = null
-  selectedObject: null | any = null
   mouseDownVector: null | Vector2 = null
 
   constructor() {
@@ -242,8 +246,8 @@ class SceneInfra {
     // Dispose of any other resources like geometries, materials, textures
   }
   getPlaneIntersectPoint = (): {
-    intersection2d?: Vector2
-    intersectPoint: Vector3
+    twoD?: Vector2
+    threeD?: Vector3
     intersection: Intersection<Object3D<Object3DEventMap>>
   } | null => {
     this.planeRaycaster.setFromCamera(
@@ -254,23 +258,11 @@ class SceneInfra {
       this.scene.children,
       true
     )
-    if (
-      planeIntersects.length > 0 &&
-      planeIntersects[0].object.userData.type !== RAYCASTABLE_PLANE
-    ) {
-      const intersect = planeIntersects[0]
-      return {
-        intersectPoint: intersect.point,
-        intersection: intersect,
-      }
-    }
-    if (
-      !(
-        planeIntersects.length > 0 &&
-        planeIntersects[0].object.userData.type === RAYCASTABLE_PLANE
-      )
+    const recastablePlaneIntersect = planeIntersects.find(
+      (intersect) => intersect.object.name === RAYCASTABLE_PLANE
     )
-      return null
+    if (!planeIntersects.length) return null
+    if (!recastablePlaneIntersect) return { intersection: planeIntersects[0] }
     const planePosition = planeIntersects[0].object.position
     const inversePlaneQuaternion = planeIntersects[0].object.quaternion
       .clone()
@@ -285,19 +277,21 @@ class SceneInfra {
     }
 
     return {
-      intersection2d: new Vector2(
+      twoD: new Vector2(
         transformedPoint.x / this._baseUnitMultiplier,
         transformedPoint.y / this._baseUnitMultiplier
       ), // z should be 0
-      intersectPoint: intersectPoint.divideScalar(this._baseUnitMultiplier),
+      threeD: intersectPoint.divideScalar(this._baseUnitMultiplier),
       intersection: planeIntersects[0],
     }
   }
-  onMouseMove = (event: MouseEvent) => {
-    this.currentMouseVector.x = (event.clientX / window.innerWidth) * 2 - 1
-    this.currentMouseVector.y = -(event.clientY / window.innerHeight) * 2 + 1
+  onMouseMove = (mouseEvent: MouseEvent) => {
+    this.currentMouseVector.x = (mouseEvent.clientX / window.innerWidth) * 2 - 1
+    this.currentMouseVector.y =
+      -(mouseEvent.clientY / window.innerHeight) * 2 + 1
 
     const planeIntersectPoint = this.getPlaneIntersectPoint()
+    const intersects = this.raycastRing()
 
     if (this.selected) {
       const hasBeenDragged = !compareVec2Epsilon2(
@@ -313,47 +307,56 @@ class SceneInfra {
       if (
         hasBeenDragged &&
         planeIntersectPoint &&
-        planeIntersectPoint.intersection2d
+        planeIntersectPoint.twoD &&
+        planeIntersectPoint.threeD
       ) {
         // // console.log('onDrag', this.selected)
 
         this.onDragCallback({
-          object: this.selected.object,
-          event,
-          intersection2d: planeIntersectPoint.intersection2d,
-          ...planeIntersectPoint,
+          mouseEvent,
+          intersectionPoint: {
+            twoD: planeIntersectPoint.twoD,
+            threeD: planeIntersectPoint.threeD,
+          },
+          intersects,
+          selected: this.selected.object,
         })
       }
-    } else if (planeIntersectPoint && planeIntersectPoint.intersection2d) {
+    } else if (
+      planeIntersectPoint &&
+      planeIntersectPoint.twoD &&
+      planeIntersectPoint.threeD
+    ) {
       this.onMoveCallback({
-        event,
-        intersection2d: planeIntersectPoint.intersection2d,
-        ...planeIntersectPoint,
+        mouseEvent,
+        intersectionPoint: {
+          twoD: planeIntersectPoint.twoD,
+          threeD: planeIntersectPoint.threeD,
+        },
+        intersects,
       })
     }
 
-    const intersect = this.raycastRing()
-
-    if (intersect) {
-      const firstIntersectObject = intersect.object
+    if (intersects[0]) {
+      const firstIntersectObject = intersects[0].object
       if (this.hoveredObject !== firstIntersectObject) {
         if (this.hoveredObject) {
           this.onMouseLeave({
-            object: this.hoveredObject,
-            event,
+            selected: this.hoveredObject,
+            mouseEvent: mouseEvent,
           })
         }
         this.hoveredObject = firstIntersectObject
         this.onMouseEnter({
-          object: this.hoveredObject,
-          event,
+          selected: this.hoveredObject,
+          mouseEvent: mouseEvent,
         })
       }
     } else {
       if (this.hoveredObject) {
         this.onMouseLeave({
-          object: this.hoveredObject,
-          event,
+          selected: this.hoveredObject,
+          mouseEvent: mouseEvent,
         })
         this.hoveredObject = null
       }
@@ -363,41 +366,38 @@ class SceneInfra {
   raycastRing = (
     pixelRadius = 8,
     rayRingCount = 32
-  ): Intersection<Object3D<Object3DEventMap>> | undefined => {
+  ): Intersection<Object3D<Object3DEventMap>>[] => {
     const mouseDownVector = this.currentMouseVector.clone()
-    let closestIntersection:
-      | Intersection<Object3D<Object3DEventMap>>
-      | undefined = undefined
-    let closestDistance = Infinity
+    const intersectionsMap = new Map<
+      Object3D,
+      Intersection<Object3D<Object3DEventMap>>
+    >()
 
-    const updateClosestIntersection = (
+    const updateIntersectionsMap = (
       intersections: Intersection<Object3D<Object3DEventMap>>[]
     ) => {
-      let intersection = null
-      for (let i = 0; i < intersections.length; i++) {
-        if (intersections[i].object.type !== 'GridHelper') {
-          intersection = intersections[i]
-          break
+      intersections.forEach((intersection) => {
+        if (intersection.object.type !== 'GridHelper') {
+          const existingIntersection = intersectionsMap.get(intersection.object)
+          if (
+            !existingIntersection ||
+            existingIntersection.distance > intersection.distance
+          ) {
+            intersectionsMap.set(intersection.object, intersection)
+          }
         }
-      }
-      if (!intersection) return
-
-      if (intersection.distance < closestDistance) {
-        closestDistance = intersection.distance
-        closestIntersection = intersection
-      }
+      })
     }
 
     // Check the center point
     this.raycaster.setFromCamera(mouseDownVector, this.camControls.camera)
-    updateClosestIntersection(
+    updateIntersectionsMap(
       this.raycaster.intersectObjects(this.scene.children, true)
     )
 
     // Check the ring points
     for (let i = 0; i < rayRingCount; i++) {
       const angle = (i / rayRingCount) * Math.PI * 2
-
       const offsetX = ((pixelRadius * Math.cos(angle)) / window.innerWidth) * 2
       const offsetY = ((pixelRadius * Math.sin(angle)) / window.innerHeight) * 2
       const ringVector = new Vector2(
@@ -405,11 +405,15 @@ class SceneInfra {
         mouseDownVector.y - offsetY
       )
       this.raycaster.setFromCamera(ringVector, this.camControls.camera)
-      updateClosestIntersection(
+      updateIntersectionsMap(
         this.raycaster.intersectObjects(this.scene.children, true)
       )
     }
-    return closestIntersection
+
+    // Convert the map values to an array and sort by distance
+    return Array.from(intersectionsMap.values()).sort(
+      (a, b) => a.distance - b.distance
+    )
   }
 
   onMouseDown = (event: MouseEvent) => {
@@ -417,45 +421,60 @@ class SceneInfra {
     this.currentMouseVector.y = -(event.clientY / window.innerHeight) * 2 + 1
 
     const mouseDownVector = this.currentMouseVector.clone()
-    const intersect = this.raycastRing()
+    const intersect = this.raycastRing()[0]
 
     if (intersect) {
       const intersectParent = intersect?.object?.parent as Group
       this.selected = intersectParent.isGroup
         ? {
             mouseDownVector,
-            object: intersect?.object,
+            object: intersect.object,
             hasBeenDragged: false,
           }
         : null
     }
   }
 
-  onMouseUp = (event: MouseEvent) => {
-    this.currentMouseVector.x = (event.clientX / window.innerWidth) * 2 - 1
-    this.currentMouseVector.y = -(event.clientY / window.innerHeight) * 2 + 1
+  onMouseUp = (mouseEvent: MouseEvent) => {
+    this.currentMouseVector.x = (mouseEvent.clientX / window.innerWidth) * 2 - 1
+    this.currentMouseVector.y =
+      -(mouseEvent.clientY / window.innerHeight) * 2 + 1
     const planeIntersectPoint = this.getPlaneIntersectPoint()
+    const intersects = this.raycastRing()
 
     if (this.selected) {
       if (this.selected.hasBeenDragged) {
         // this is where we could fire a onDragEnd event
         // console.log('onDragEnd', this.selected)
-      } else if (planeIntersectPoint) {
+      } else if (planeIntersectPoint?.twoD && planeIntersectPoint?.threeD) {
         // fire onClick event as there was no drags
         this.onClickCallback({
-          object: this.selected?.object,
-          event,
-          ...planeIntersectPoint,
+          mouseEvent,
+          intersectionPoint: {
+            twoD: planeIntersectPoint.twoD,
+            threeD: planeIntersectPoint.threeD,
+          },
+          intersects,
+          selected: this.selected.object,
+        })
+      } else if (planeIntersectPoint) {
+        this.onClickCallback({
+          mouseEvent,
+          intersects,
         })
       } else {
         this.onClickCallback()
       }
       // Clear the selected state whether it was dragged or not
       this.selected = null
-    } else if (planeIntersectPoint) {
+    } else if (planeIntersectPoint?.twoD && planeIntersectPoint?.threeD) {
       this.onClickCallback({
-        event,
-        ...planeIntersectPoint,
+        mouseEvent,
+        intersectionPoint: {
+          twoD: planeIntersectPoint.twoD,
+          threeD: planeIntersectPoint.threeD,
+        },
+        intersects,
       })
     } else {
       this.onClickCallback()

src/clientSideScene/segments.ts

@@ -1,5 +1,6 @@
 import { Coords2d } from 'lang/std/sketch'
 import {
+  BoxGeometry,
   BufferGeometry,
   CatmullRomCurve3,
   ConeGeometry,
@@ -19,6 +20,7 @@ import {
 import { mergeGeometries } from 'three/examples/jsm/utils/BufferGeometryUtils.js'
 import { PathToNode, SketchGroup, getTangentialArcToInfo } from 'lang/wasm'
 import {
+  PROFILE_START,
   STRAIGHT_SEGMENT,
   STRAIGHT_SEGMENT_BODY,
   STRAIGHT_SEGMENT_DASH,
@@ -29,6 +31,38 @@ import {
 import { getTangentPointFromPreviousArc } from 'lib/utils2d'
 import { ARROWHEAD } from './sceneInfra'
 
+export function profileStart({
+  from,
+  id,
+  pathToNode,
+  scale = 1,
+}: {
+  from: Coords2d
+  id: string
+  pathToNode: PathToNode
+  scale?: number
+}) {
+  const group = new Group()
+
+  const geometry = new BoxGeometry(0.8, 0.8, 0.8)
+  const body = new MeshBasicMaterial({ color: 0xffffff })
+  const mesh = new Mesh(geometry, body)
+
+  group.add(mesh)
+
+  group.userData = {
+    type: PROFILE_START,
+    id,
+    from,
+    pathToNode,
+    isSelected: false,
+  }
+  group.name = PROFILE_START
+  group.position.set(from[0], from[1], 0)
+  group.scale.set(scale, scale, scale)
+  return group
+}
+
 export function straightSegment({
   from,
   to,
@@ -36,6 +70,7 @@ export function straightSegment({
   pathToNode,
   isDraftSegment,
   scale = 1,
+  callExpName,
 }: {
   from: Coords2d
   to: Coords2d
@@ -43,6 +78,7 @@ export function straightSegment({
   pathToNode: PathToNode
   isDraftSegment?: boolean
   scale?: number
+  callExpName: string
 }): Group {
   const group = new Group()
 
@@ -66,7 +102,8 @@ export function straightSegment({
     })
   }
 
-  const body = new MeshBasicMaterial({ color: 0xffffff })
+  const baseColor = callExpName === 'close' ? 0x444444 : 0xffffff
+  const body = new MeshBasicMaterial({ color: baseColor })
   const mesh = new Mesh(geometry, body)
   mesh.userData.type = isDraftSegment
     ? STRAIGHT_SEGMENT_DASH
@@ -80,7 +117,10 @@ export function straightSegment({
     to,
     pathToNode,
     isSelected: false,
+    callExpName,
+    baseColor,
   }
+  group.name = STRAIGHT_SEGMENT
 
   const arrowGroup = createArrowhead(scale)
   arrowGroup.position.set(to[0], to[1], 0)
@@ -89,7 +129,8 @@ export function straightSegment({
     .normalize()
   arrowGroup.quaternion.setFromUnitVectors(new Vector3(0, 1, 0), dir)
 
-  group.add(mesh, arrowGroup)
+  group.add(mesh)
+  if (callExpName !== 'close') group.add(arrowGroup)
 
   return group
 }
@@ -169,6 +210,7 @@ export function tangentialArcToSegment({
     pathToNode,
     isSelected: false,
   }
+  group.name = TANGENTIAL_ARC_TO_SEGMENT
 
   const arrowGroup = createArrowhead(scale)
   arrowGroup.position.set(to[0], to[1], 0)

src/components/CommandBar/CommandArgOptionInput.tsx

@@ -1,8 +1,8 @@
 import { Combobox } from '@headlessui/react'
 import Fuse from 'fuse.js'
 import { useCommandsContext } from 'hooks/useCommandsContext'
-import { CommandArgumentOption } from 'lib/commandTypes'
-import { useEffect, useRef, useState } from 'react'
+import { CommandArgument, CommandArgumentOption } from 'lib/commandTypes'
+import { useEffect, useMemo, useRef, useState } from 'react'
 
 function CommandArgOptionInput({
   options,
@@ -11,51 +11,89 @@ function CommandArgOptionInput({
   onSubmit,
   placeholder,
 }: {
-  options: CommandArgumentOption<unknown>[]
+  options: (CommandArgument<unknown> & { inputType: 'options' })['options']
   argName: string
   stepBack: () => void
   onSubmit: (data: unknown) => void
   placeholder?: string
 }) {
   const { commandBarSend, commandBarState } = useCommandsContext()
+  const resolvedOptions = useMemo(
+    () =>
+      typeof options === 'function'
+        ? options(commandBarState.context)
+        : options,
+    [argName, options, commandBarState.context]
+  )
+  // The initial current option is either an already-input value or the configured default
+  const currentOption = useMemo(
+    () =>
+      resolvedOptions.find(
+        (o) => o.value === commandBarState.context.argumentsToSubmit[argName]
+      ) || resolvedOptions.find((o) => o.isCurrent),
+    [commandBarState.context.argumentsToSubmit, argName, resolvedOptions]
+  )
   const inputRef = useRef<HTMLInputElement>(null)
   const formRef = useRef<HTMLFormElement>(null)
-  const [argValue, setArgValue] = useState<(typeof options)[number]['value']>(
-    options.find((o) => 'isCurrent' in o && o.isCurrent)?.value ||
-      commandBarState.context.argumentsToSubmit[argName] ||
-      options[0].value
+  const [selectedOption, setSelectedOption] = useState<
+    CommandArgumentOption<unknown>
+  >(currentOption || resolvedOptions[0])
+  const initialQuery = useMemo(() => '', [options, argName])
+  const [query, setQuery] = useState(initialQuery)
+  const [filteredOptions, setFilteredOptions] =
+    useState<typeof resolvedOptions>()
+
+  // Create a new Fuse instance when the options change
+  const fuse = useMemo(
+    () =>
+      new Fuse(resolvedOptions, {
+        keys: ['name', 'description'],
+        threshold: 0.3,
+      }),
+    [argName, resolvedOptions]
   )
-  const [query, setQuery] = useState('')
-  const [filteredOptions, setFilteredOptions] = useState<typeof options>()
 
-  const fuse = new Fuse(options, {
-    keys: ['name', 'description'],
-    threshold: 0.3,
-  })
+  // Reset the query and selected option when the argName changes
+  useEffect(() => {
+    setQuery(initialQuery)
+    setSelectedOption(currentOption || resolvedOptions[0])
+  }, [argName])
 
+  // Auto focus and select the input when the component mounts
   useEffect(() => {
     inputRef.current?.focus()
     inputRef.current?.select()
   }, [inputRef])
 
+  // Filter the options based on the query,
+  // resetting the query when the options change
   useEffect(() => {
     const results = fuse.search(query).map((result) => result.item)
-    setFilteredOptions(query.length > 0 ? results : options)
-  }, [query])
+    setFilteredOptions(query.length > 0 ? results : resolvedOptions)
+  }, [query, resolvedOptions, fuse])
 
   function handleSelectOption(option: CommandArgumentOption<unknown>) {
-    setArgValue(option)
+    // We deal with the whole option object internally
+    setSelectedOption(option)
+
+    // But we only submit the value
     onSubmit(option.value)
   }
 
   function handleSubmit(e: React.FormEvent<HTMLFormElement>) {
     e.preventDefault()
-    onSubmit(argValue)
+
+    // We submit the value of the selected option, not the whole object
+    onSubmit(selectedOption.value)
   }
 
   return (
     <form id="arg-form" onSubmit={handleSubmit} ref={formRef}>
-      <Combobox value={argValue} onChange={handleSelectOption} name="options">
+      <Combobox
+        value={selectedOption}
+        onChange={handleSelectOption}
+        name="options"
+      >
         <div className="flex items-center mx-4 mt-4 mb-2">
           <label
             htmlFor="option-input"
@@ -75,10 +113,12 @@ function CommandArgOptionInput({
                 stepBack()
               }
             }}
+            value={query}
             placeholder={
-              (argValue as CommandArgumentOption<unknown>)?.name ||
+              currentOption?.name ||
               placeholder ||
-              'Select an option for ' + argName
+              argName ||
+              'Select an option'
             }
             autoCapitalize="off"
             autoComplete="off"
@@ -98,7 +138,7 @@ function CommandArgOptionInput({
               className="flex items-center gap-2 px-4 py-1 first:mt-2 last:mb-2 ui-active:bg-energy-10/50 dark:ui-active:bg-chalkboard-90"
             >
               <p className="flex-grow">{option.name} </p>
-              {'isCurrent' in option && option.isCurrent && (
+              {option.value === currentOption?.value && (
                 <small className="text-chalkboard-70 dark:text-chalkboard-50">
                   current
                 </small>

src/components/CommandBar/CommandBar.tsx

@@ -29,12 +29,6 @@ export const CommandBarProvider = ({
   const [commandBarState, commandBarSend] = useMachine(commandBarMachine, {
     devTools: true,
     guards: {
-      'Arguments are ready': (context, _) => {
-        return context.selectedCommand?.args
-          ? context.argumentsToSubmit.length ===
-              Object.keys(context.selectedCommand.args)?.length
-          : false
-      },
       'Command has no arguments': (context, _event) => {
         return (
           !context.selectedCommand?.args ||
@@ -81,7 +75,12 @@ export const CommandBar = () => {
   function stepBack() {
     if (!currentArgument) {
       if (commandBarState.matches('Review')) {
-        const entries = Object.entries(selectedCommand?.args || {})
+        const entries = Object.entries(selectedCommand?.args || {}).filter(
+          ([_, argConfig]) =>
+            typeof argConfig.required === 'function'
+              ? argConfig.required(commandBarState.context)
+              : argConfig.required
+        )
 
         const currentArgName = entries[entries.length - 1][0]
         const currentArg = {
@@ -89,19 +88,12 @@ export const CommandBar = () => {
           ...entries[entries.length - 1][1],
         }
 
-        if (commandBarState.matches('Review')) {
-          commandBarSend({
-            type: 'Edit argument',
-            data: {
-              arg: currentArg,
-            },
-          })
-        } else {
-          commandBarSend({
-            type: 'Remove argument',
-            data: { [currentArgName]: currentArg },
-          })
-        }
+        commandBarSend({
+          type: 'Edit argument',
+          data: {
+            arg: currentArg,
+          },
+        })
       } else {
         commandBarSend({ type: 'Deselect command' })
       }
@@ -124,11 +116,6 @@ export const CommandBar = () => {
     }
   }
 
-  useEffect(
-    () => console.log(commandBarState.context.argumentsToSubmit),
-    [commandBarState.context.argumentsToSubmit]
-  )
-
   return (
     <Transition.Root
       show={!commandBarState.matches('Closed') || false}
@@ -159,6 +146,7 @@ export const CommandBar = () => {
           <WrapperComponent.Panel
             className="relative z-50 pointer-events-auto w-full max-w-xl py-2 mx-auto border rounded shadow-lg bg-chalkboard-10 dark:bg-chalkboard-100 dark:border-chalkboard-70"
             as="div"
+            data-testid="command-bar"
           >
             {commandBarState.matches('Selecting command') ? (
               <CommandComboBox options={commands} />

src/components/CommandBar/CommandBarHeader.tsx

@@ -1,6 +1,6 @@
 import { useCommandsContext } from 'hooks/useCommandsContext'
 import { CustomIcon } from '../CustomIcon'
-import React, { ReactNode, useState } from 'react'
+import React, { useState } from 'react'
 import { ActionButton } from '../ActionButton'
 import { Selections, getSelectionTypeDisplayText } from 'lib/selections'
 import { useHotkeys } from 'react-hotkeys-hook'
@@ -76,72 +76,87 @@ function CommandBarHeader({ children }: React.PropsWithChildren<{}>) {
                 )}
               {selectedCommand?.name}
             </p>
-            {Object.entries(selectedCommand?.args || {}).map(
-              ([argName, arg], i) => (
-                <button
-                  disabled={!isReviewing && currentArgument?.name === argName}
-                  onClick={() => {
-                    commandBarSend({
-                      type: isReviewing
-                        ? 'Edit argument'
-                        : 'Change current argument',
-                      data: { arg: { ...arg, name: argName } },
-                    })
-                  }}
-                  key={argName}
-                  className={`relative w-fit px-2 py-1 rounded-sm flex gap-2 items-center border ${
-                    argName === currentArgument?.name
-                      ? 'disabled:bg-energy-10/50 dark:disabled:bg-energy-10/20 disabled:border-energy-10 dark:disabled:border-energy-10 disabled:text-chalkboard-100 dark:disabled:text-chalkboard-10'
-                      : 'bg-chalkboard-20/50 dark:bg-chalkboard-80/50 border-chalkboard-20 dark:border-chalkboard-80'
-                  }`}
-                >
-                  <span className="capitalize">{argName}</span>
-                  {argumentsToSubmit[argName] ? (
-                    arg.inputType === 'selection' ? (
-                      getSelectionTypeDisplayText(
-                        argumentsToSubmit[argName] as Selections
-                      )
-                    ) : arg.inputType === 'kcl' ? (
-                      roundOff(
-                        Number(
-                          (argumentsToSubmit[argName] as KclCommandValue)
-                            .valueCalculated
-                        ),
-                        4
-                      )
-                    ) : typeof argumentsToSubmit[argName] === 'object' ? (
-                      JSON.stringify(argumentsToSubmit[argName])
-                    ) : (
-                      <em>{argumentsToSubmit[argName] as ReactNode}</em>
-                    )
-                  ) : null}
-                  {showShortcuts && (
-                    <small className="absolute -top-[1px] right-full translate-x-1/2 px-0.5 rounded-sm bg-chalkboard-80 text-chalkboard-10 dark:bg-energy-10 dark:text-chalkboard-100">
-                      <span className="sr-only">Hotkey: </span>
-                      {i + 1}
-                    </small>
-                  )}
-                  {arg.inputType === 'kcl' &&
-                    !!argumentsToSubmit[argName] &&
-                    'variableName' in
-                      (argumentsToSubmit[argName] as KclCommandValue) && (
-                      <>
-                        <CustomIcon name="make-variable" className="w-4 h-4" />
-                        <Tooltip position="blockEnd">
-                          New variable:{' '}
-                          {
-                            (
-                              argumentsToSubmit[
-                                argName
-                              ] as KclExpressionWithVariable
-                            ).variableName
-                          }
-                        </Tooltip>
-                      </>
-                    )}
-                </button>
+            {Object.entries(selectedCommand?.args || {})
+              .filter(([_, argConfig]) =>
+                typeof argConfig.required === 'function'
+                  ? argConfig.required(commandBarState.context)
+                  : argConfig.required
               )
-            )}
+              .map(([argName, arg], i) => {
+                const argValue =
+                  (typeof argumentsToSubmit[argName] === 'function'
+                    ? (argumentsToSubmit[argName] as Function)(
+                        commandBarState.context
+                      )
+                    : argumentsToSubmit[argName]) || ''
+
+                return (
+                  <button
+                    disabled={!isReviewing && currentArgument?.name === argName}
+                    onClick={() => {
+                      commandBarSend({
+                        type: isReviewing
+                          ? 'Edit argument'
+                          : 'Change current argument',
+                        data: { arg: { ...arg, name: argName } },
+                      })
+                    }}
+                    key={argName}
+                    className={`relative w-fit px-2 py-1 rounded-sm flex gap-2 items-center border ${
+                      argName === currentArgument?.name
+                        ? 'disabled:bg-energy-10/50 dark:disabled:bg-energy-10/20 disabled:border-energy-10 dark:disabled:border-energy-10 disabled:text-chalkboard-100 dark:disabled:text-chalkboard-10'
+                        : 'bg-chalkboard-20/50 dark:bg-chalkboard-80/50 border-chalkboard-20 dark:border-chalkboard-80'
+                    }`}
+                  >
+                    <span
+                      data-testid={`arg-name-${argName.toLowerCase()}`}
+                      className="capitalize"
+                    >
+                      {argName}
+                    </span>
+                    {argValue ? (
+                      arg.inputType === 'selection' ? (
+                        getSelectionTypeDisplayText(argValue as Selections)
+                      ) : arg.inputType === 'kcl' ? (
+                        roundOff(
+                          Number((argValue as KclCommandValue).valueCalculated),
+                          4
+                        )
+                      ) : typeof argValue === 'object' ? (
+                        JSON.stringify(argValue)
+                      ) : (
+                        <em>{argValue}</em>
+                      )
+                    ) : null}
+                    {showShortcuts && (
+                      <small className="absolute -top-[1px] right-full translate-x-1/2 px-0.5 rounded-sm bg-chalkboard-80 text-chalkboard-10 dark:bg-energy-10 dark:text-chalkboard-100">
+                        <span className="sr-only">Hotkey: </span>
+                        {i + 1}
+                      </small>
+                    )}
+                    {arg.inputType === 'kcl' &&
+                      !!argValue &&
+                      'variableName' in (argValue as KclCommandValue) && (
+                        <>
+                          <CustomIcon
+                            name="make-variable"
+                            className="w-4 h-4"
+                          />
+                          <Tooltip position="blockEnd">
+                            New variable:{' '}
+                            {
+                              (
+                                argumentsToSubmit[
+                                  argName
+                                ] as KclExpressionWithVariable
+                              ).variableName
+                            }
+                          </Tooltip>
+                        </>
+                      )}
+                  </button>
+                )
+              })}
           </div>
           {isReviewing ? <ReviewingButton /> : <GatheringArgsButton />}
         </div>

src/components/CommandBar/CommandBarReview.tsx

@@ -48,7 +48,8 @@ function CommandBarReview({ stepBack }: { stepBack: () => void }) {
     if (!arg) return
   })
 
-  function submitCommand() {
+  function submitCommand(e: React.FormEvent<HTMLFormElement>) {
+    e.preventDefault()
     commandBarSend({
       type: 'Submit command',
       data: argumentsToSubmit,

src/components/CommandBar/CommandBarSelectionInput.tsx

@@ -29,7 +29,7 @@ function CommandBarSelectionInput({
   const inputRef = useRef<HTMLInputElement>(null)
   const { commandBarState, commandBarSend } = useCommandsContext()
   const [hasSubmitted, setHasSubmitted] = useState(false)
-  const selection = useSelector(arg.actor, selectionSelector)
+  const selection = useSelector(arg.machineActor, selectionSelector)
   const [selectionsByType, setSelectionsByType] = useState<
     'none' | ResolvedSelectionType[]
   >(

src/components/CustomIcon.tsx

@@ -9,6 +9,7 @@ export type CustomIconName =
   | 'clipboardCheckmark'
   | 'close'
   | 'equal'
+  | 'exportFile'
   | 'extrude'
   | 'file'
   | 'filePlus'
@@ -17,6 +18,7 @@ export type CustomIconName =
   | 'gear'
   | 'horizontal'
   | 'horizontalDash'
+  | 'kcl'
   | 'line'
   | 'make-variable'
   | 'move'
@@ -194,6 +196,22 @@ export const CustomIcon = ({
           />
         </svg>
       )
+    case 'exportFile':
+      return (
+        <svg
+          {...props}
+          viewBox="0 0 20 20"
+          fill="none"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <path
+            fillRule="evenodd"
+            clipRule="evenodd"
+            d="M4 3H4.5H11H11.2071L11.3536 3.14645L15.8536 7.64646L16 7.7929V8.00001V11.3773C15.6992 11.1362 15.3628 10.9376 15 10.7908V8.50001H11H10.5V8.00001V4H5V16H9.79076C9.93763 16.3628 10.1362 16.6992 10.3773 17H4.5H4V16.5V3.5V3ZM11.5 4.70711L14.2929 7.50001H11.5V4.70711ZM16.3904 14.1877L14.3904 11.6877L13.6096 12.3124L14.9597 14H11V15H14.9597L13.6096 16.6877L14.3904 17.3124L16.3904 14.8124L16.6403 14.5L16.3904 14.1877Z"
+            fill="currentColor"
+          />
+        </svg>
+      )
     case 'extrude':
       return (
         <svg
@@ -322,6 +340,22 @@ export const CustomIcon = ({
           />
         </svg>
       )
+    case 'kcl':
+      return (
+        <svg
+          {...props}
+          viewBox="0 0 40 40"
+          fill="none"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <path
+            fillRule="evenodd"
+            clipRule="evenodd"
+            d="M40 0H0V40H40V0ZM7.34715 27.2143V15.6577L2.976 15.987V36.7949H7.34715V32.0645L8.00582 31.5256C8.24533 31.326 8.47487 31.1264 8.69442 30.9268L12.1075 36.7949H17.0475C16.1893 35.3978 15.311 33.9906 14.4128 32.5735C13.5346 31.1563 12.6664 29.7392 11.8081 28.3221L15.8499 24.9389C15.4308 24.4399 15.0017 23.931 14.5625 23.412L13.3051 21.8552L7.34715 27.2143ZM22.2581 26.6754C22.8769 25.9169 23.6753 25.5377 24.6533 25.5377C25.272 25.5377 25.8309 25.6175 26.3299 25.7772C26.8289 25.9169 27.4177 26.1465 28.0963 26.4658L29.3238 23.3521C28.5853 22.7933 27.7371 22.4041 26.779 22.1845C25.8409 21.9649 25.0625 21.8552 24.4437 21.8552C22.0885 21.8552 20.2223 22.5537 18.845 23.9509C17.4878 25.3281 16.8092 27.1944 16.8092 29.5496C16.8092 31.9048 17.4878 33.7611 18.845 35.1183C20.2223 36.4756 22.0885 37.1542 24.4437 37.1542C25.0625 37.1542 25.8509 37.0444 26.8089 36.8249C27.767 36.6053 28.6053 36.2161 29.3238 35.6572L28.0963 32.5435C27.4177 32.8629 26.8289 33.0924 26.3299 33.2321C25.8309 33.3718 25.272 33.4417 24.6533 33.4417C23.6753 33.4417 22.8769 33.0924 22.2581 32.3938C21.6594 31.6753 21.36 30.7272 21.36 29.5496C21.36 28.372 21.6594 27.4139 22.2581 26.6754ZM36.2796 36.7949V15.6577L31.9085 15.987V36.7949H36.2796Z"
+            fill="currentColor"
+          />
+        </svg>
+      )
     case 'line':
       return (
         <svg

src/components/ExportButton.tsx

@@ -1,238 +0,0 @@
-import { v4 as uuidv4 } from 'uuid'
-import { faFileExport, faXmark } from '@fortawesome/free-solid-svg-icons'
-import { ActionButton } from './ActionButton'
-import Modal from 'react-modal'
-import React from 'react'
-import { useFormik } from 'formik'
-import { Models } from '@kittycad/lib'
-import { engineCommandManager } from '../lang/std/engineConnection'
-import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
-
-type OutputFormat = Models['OutputFormat_type']
-type OutputTypeKey = OutputFormat['type']
-type ExtractStorageTypes<T> = T extends { storage: infer U } ? U : never
-type StorageUnion = ExtractStorageTypes<OutputFormat>
-
-export interface ExportButtonProps extends React.PropsWithChildren {
-  className?: {
-    button?: string
-    icon?: string
-    bg?: string
-  }
-}
-
-export const ExportButton = ({ children, className }: ExportButtonProps) => {
-  const [modalIsOpen, setIsOpen] = React.useState(false)
-  const {
-    settings: {
-      state: {
-        context: { baseUnit },
-      },
-    },
-  } = useGlobalStateContext()
-
-  const defaultType = 'gltf'
-  const [type, setType] = React.useState<OutputTypeKey>(defaultType)
-  const defaultStorage = 'embedded'
-  const [storage, setStorage] = React.useState<StorageUnion>(defaultStorage)
-
-  function openModal() {
-    setIsOpen(true)
-  }
-
-  function closeModal() {
-    setIsOpen(false)
-  }
-
-  // Default to gltf and embedded.
-  const initialValues: OutputFormat = {
-    type: defaultType,
-    storage: defaultStorage,
-    presentation: 'pretty',
-  }
-  const formik = useFormik({
-    initialValues,
-    onSubmit: (values: OutputFormat) => {
-      // Set the default coords.
-      if (
-        values.type === 'obj' ||
-        values.type === 'ply' ||
-        values.type === 'step' ||
-        values.type === 'stl'
-      ) {
-        // Set the default coords.
-        // In the future we can make this configurable.
-        // But for now, its probably best to keep it consistent with the
-        // UI.
-        values.coords = {
-          forward: {
-            axis: 'y',
-            direction: 'negative',
-          },
-          up: {
-            axis: 'z',
-            direction: 'positive',
-          },
-        }
-      }
-      if (
-        values.type === 'obj' ||
-        values.type === 'stl' ||
-        values.type === 'ply'
-      ) {
-        values.units = baseUnit
-      }
-      if (
-        values.type === 'ply' ||
-        values.type === 'stl' ||
-        values.type === 'gltf'
-      ) {
-        // Set the storage type.
-        values.storage = storage
-      }
-      if (values.type === 'ply' || values.type === 'stl') {
-        values.selection = { type: 'default_scene' }
-      }
-      engineCommandManager.sendSceneCommand({
-        type: 'modeling_cmd_req',
-        cmd: {
-          type: 'export',
-          // By default let's leave this blank to export the whole scene.
-          // In the future we might want to let the user choose which entities
-          // in the scene to export. In that case, you'd pass the IDs thru here.
-          entity_ids: [],
-          format: values,
-          source_unit: baseUnit,
-        },
-        cmd_id: uuidv4(),
-      })
-
-      closeModal()
-    },
-  })
-
-  return (
-    <>
-      <ActionButton
-        onClick={openModal}
-        Element="button"
-        icon={{
-          icon: faFileExport,
-          className: 'p-1',
-          size: 'sm',
-          iconClassName: className?.icon,
-          bgClassName: className?.bg,
-        }}
-        className={className?.button}
-      >
-        {children || 'Export'}
-      </ActionButton>
-      <Modal
-        isOpen={modalIsOpen}
-        onRequestClose={closeModal}
-        contentLabel="Export"
-        overlayClassName="z-40 fixed inset-0 grid place-items-center"
-        className="rounded p-4 bg-chalkboard-10 dark:bg-chalkboard-100 border max-w-xl w-full"
-      >
-        <h1 className="text-2xl font-bold">Export your design</h1>
-        <form onSubmit={formik.handleSubmit}>
-          <div className="flex flex-wrap justify-between gap-8 items-center w-full my-8">
-            <label htmlFor="type" className="flex-1">
-              <p className="mb-2">Type</p>
-              <select
-                id="type"
-                name="type"
-                data-testid="export-type"
-                onChange={(e) => {
-                  setType(e.target.value as OutputTypeKey)
-                  if (e.target.value === 'gltf') {
-                    // Set default to embedded.
-                    setStorage('embedded')
-                  } else if (e.target.value === 'ply') {
-                    // Set default to ascii.
-                    setStorage('ascii')
-                  } else if (e.target.value === 'stl') {
-                    // Set default to ascii.
-                    setStorage('ascii')
-                  }
-                  formik.handleChange(e)
-                }}
-                className="bg-chalkboard-20 dark:bg-chalkboard-90 w-full"
-              >
-                <option value="gltf">gltf</option>
-                <option value="obj">obj</option>
-                <option value="ply">ply</option>
-                <option value="step">step</option>
-                <option value="stl">stl</option>
-              </select>
-            </label>
-            {(type === 'gltf' || type === 'ply' || type === 'stl') && (
-              <label htmlFor="storage" className="flex-1">
-                <p className="mb-2">Storage</p>
-                <select
-                  id="storage"
-                  name="storage"
-                  data-testid="export-storage"
-                  onChange={(e) => {
-                    setStorage(e.target.value as StorageUnion)
-                    formik.handleChange(e)
-                  }}
-                  className="bg-chalkboard-20 dark:bg-chalkboard-90 w-full"
-                >
-                  {type === 'gltf' && (
-                    <>
-                      <option value="embedded">embedded</option>
-                      <option value="binary">binary</option>
-                      <option value="standard">standard</option>
-                    </>
-                  )}
-                  {type === 'stl' && (
-                    <>
-                      <option value="ascii">ascii</option>
-                      <option value="binary">binary</option>
-                    </>
-                  )}
-                  {type === 'ply' && (
-                    <>
-                      <option value="ascii">ascii</option>
-                      <option value="binary_little_endian">
-                        binary_little_endian
-                      </option>
-                      <option value="binary_big_endian">
-                        binary_big_endian
-                      </option>
-                    </>
-                  )}
-                </select>
-              </label>
-            )}
-          </div>
-
-          <div className="flex justify-between mt-6">
-            <ActionButton
-              Element="button"
-              onClick={closeModal}
-              icon={{
-                icon: faXmark,
-                className: 'p-1',
-                bgClassName: 'bg-destroy-80',
-                iconClassName:
-                  'text-destroy-20 group-hover:text-destroy-10 hover:text-destroy-10',
-              }}
-              className="hover:border-destroy-40"
-            >
-              Close
-            </ActionButton>
-            <ActionButton
-              Element="button"
-              type="submit"
-              icon={{ icon: faFileExport, className: 'p-1' }}
-            >
-              Export
-            </ActionButton>
-          </div>
-        </form>
-      </Modal>
-    </>
-  )
-}

src/components/FileMachineProvider.tsx

@@ -50,10 +50,7 @@ export const FileMachineProvider = ({
       selectedDirectory: project,
     },
     actions: {
-      navigateToFile: (
-        context: ContextFrom<typeof fileMachine>,
-        event: EventFrom<typeof fileMachine>
-      ) => {
+      navigateToFile: (context, event) => {
         if (event.data && 'name' in event.data) {
           commandBarSend({ type: 'Close' })
           navigate(
@@ -77,10 +74,7 @@ export const FileMachineProvider = ({
           children: newFiles,
         }
       },
-      createFile: async (
-        context: ContextFrom<typeof fileMachine>,
-        event: EventFrom<typeof fileMachine, 'Create file'>
-      ) => {
+      createFile: async (context, event) => {
         let name = event.data.name.trim() || DEFAULT_FILE_NAME
 
         if (event.data.makeDir) {

src/components/FileTree.tsx

@@ -3,7 +3,7 @@ import { paths } from 'lib/paths'
 import { ActionButton } from './ActionButton'
 import Tooltip from './Tooltip'
 import { FileEntry } from '@tauri-apps/api/fs'
-import { Dispatch, useRef, useState } from 'react'
+import { Dispatch, useEffect, useRef, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
 import { Dialog, Disclosure } from '@headlessui/react'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
@@ -11,7 +11,10 @@ import { faChevronRight, faTrashAlt } from '@fortawesome/free-solid-svg-icons'
 import { useFileContext } from 'hooks/useFileContext'
 import { useHotkeys } from 'react-hotkeys-hook'
 import styles from './FileTree.module.css'
-import { sortProject } from 'lib/tauriFS'
+import { FILE_EXT, sortProject } from 'lib/tauriFS'
+import { CustomIcon } from './CustomIcon'
+import { kclManager } from 'lang/KclSingleton'
+import { useDocumentHasFocus } from 'hooks/useDocumentHasFocus'
 
 function getIndentationCSS(level: number) {
   return `calc(1rem * ${level + 1})`
@@ -157,13 +160,23 @@ const FileTreeItem = ({
       // Show the renaming form
       setIsRenaming(true)
     } else if (e.code === 'Space') {
-      openFile()
+      handleDoubleClick()
     }
   }
 
-  function openFile() {
+  function handleDoubleClick() {
     if (fileOrDir.children !== undefined) return // Don't open directories
-    navigate(`${paths.FILE}/${encodeURIComponent(fileOrDir.path)}`)
+
+    if (fileOrDir.name?.endsWith(FILE_EXT) === false && project?.path) {
+      // Import non-kcl files
+      kclManager.setCodeAndExecute(
+        `import("${fileOrDir.path.replace(project.path, '.')}")\n` +
+          kclManager.code
+      )
+    } else {
+      // Open kcl files
+      navigate(`${paths.FILE}/${encodeURIComponent(fileOrDir.path)}`)
+    }
     closePanel()
   }
 
@@ -180,11 +193,12 @@ const FileTreeItem = ({
             <button
               className="flex gap-1 items-center py-0.5 rounded-none border-none p-0 m-0 text-sm w-full hover:!bg-transparent text-left !text-inherit"
               style={{ paddingInlineStart: getIndentationCSS(level) }}
-              onDoubleClick={openFile}
+              onDoubleClick={handleDoubleClick}
               onClick={(e) => e.currentTarget.focus()}
               onKeyUp={handleKeyUp}
             >
-              <KclIcon
+              <CustomIcon
+                name={fileOrDir.name?.endsWith(FILE_EXT) ? 'kcl' : 'file'}
                 className={
                   'inline-block w-3 ' +
                   (isCurrentFile
@@ -313,9 +327,15 @@ export const FileTree = ({
   closePanel,
 }: FileTreeProps) => {
   const { send, context } = useFileContext()
+  const docuemntHasFocus = useDocumentHasFocus()
   useHotkeys('meta + n', createFile)
   useHotkeys('meta + shift + n', createFolder)
 
+  // Refresh the file tree when the document gets focus
+  useEffect(() => {
+    send({ type: 'Refresh' })
+  }, [docuemntHasFocus])
+
   async function createFile() {
     send({ type: 'Create file', data: { name: '', makeDir: false } })
   }
@@ -381,21 +401,3 @@ export const FileTree = ({
     </div>
   )
 }
-
-function KclIcon({ className = '' }: { className?: string }) {
-  return (
-    <svg
-      className={className}
-      viewBox="0 0 40 40"
-      fill="none"
-      xmlns="http://www.w3.org/2000/svg"
-    >
-      <path
-        fillRule="evenodd"
-        clipRule="evenodd"
-        d="M40 0H0V40H40V0ZM7.34715 27.2143V15.6577L2.976 15.987V36.7949H7.34715V32.0645L8.00582 31.5256C8.24533 31.326 8.47487 31.1264 8.69442 30.9268L12.1075 36.7949H17.0475C16.1893 35.3978 15.311 33.9906 14.4128 32.5735C13.5346 31.1563 12.6664 29.7392 11.8081 28.3221L15.8499 24.9389C15.4308 24.4399 15.0017 23.931 14.5625 23.412L13.3051 21.8552L7.34715 27.2143ZM22.2581 26.6754C22.8769 25.9169 23.6753 25.5377 24.6533 25.5377C25.272 25.5377 25.8309 25.6175 26.3299 25.7772C26.8289 25.9169 27.4177 26.1465 28.0963 26.4658L29.3238 23.3521C28.5853 22.7933 27.7371 22.4041 26.779 22.1845C25.8409 21.9649 25.0625 21.8552 24.4437 21.8552C22.0885 21.8552 20.2223 22.5537 18.845 23.9509C17.4878 25.3281 16.8092 27.1944 16.8092 29.5496C16.8092 31.9048 17.4878 33.7611 18.845 35.1183C20.2223 36.4756 22.0885 37.1542 24.4437 37.1542C25.0625 37.1542 25.8509 37.0444 26.8089 36.8249C27.767 36.6053 28.6053 36.2161 29.3238 35.6572L28.0963 32.5435C27.4177 32.8629 26.8289 33.0924 26.3299 33.2321C25.8309 33.3718 25.272 33.4417 24.6533 33.4417C23.6753 33.4417 22.8769 33.0924 22.2581 32.3938C21.6594 31.6753 21.36 30.7272 21.36 29.5496C21.36 28.372 21.6594 27.4139 22.2581 26.6754ZM36.2796 36.7949V15.6577L31.9085 15.987V36.7949H36.2796Z"
-        fill="currentColor"
-      />
-    </svg>
-  )
-}

src/components/GlobalStateProvider.tsx

@@ -57,27 +57,30 @@ export const GlobalStateProvider = ({
     >
   )
 
-  const [settingsState, settingsSend] = useMachine(settingsMachine, {
-    context: persistedSettings,
-    actions: {
-      toastSuccess: (context, event) => {
-        const truncatedNewValue =
-          'data' in event && event.data instanceof Object
-            ? (context[Object.keys(event.data)[0] as keyof typeof context]
-                .toString()
-                .substring(0, 28) as any)
-            : undefined
-        toast.success(
-          event.type +
-            (truncatedNewValue
-              ? ` to "${truncatedNewValue}${
-                  truncatedNewValue.length === 28 ? '...' : ''
-                }"`
-              : '')
-        )
+  const [settingsState, settingsSend, settingsActor] = useMachine(
+    settingsMachine,
+    {
+      context: persistedSettings,
+      actions: {
+        toastSuccess: (context, event) => {
+          const truncatedNewValue =
+            'data' in event && event.data instanceof Object
+              ? (String(
+                  context[Object.keys(event.data)[0] as keyof typeof context]
+                ).substring(0, 28) as any)
+              : undefined
+          toast.success(
+            event.type +
+              (truncatedNewValue
+                ? ` to "${truncatedNewValue}${
+                    truncatedNewValue.length === 28 ? '...' : ''
+                  }"`
+                : '')
+          )
+        },
       },
-    },
-  })
+    }
+  )
   settingsStateRef = settingsState.context
 
   useStateMachineCommands({
@@ -85,6 +88,7 @@ export const GlobalStateProvider = ({
     state: settingsState,
     send: settingsSend,
     commandBarConfig: settingsCommandBarConfig,
+    actor: settingsActor,
   })
 
   // Listen for changes to the system theme and update the app theme accordingly
@@ -105,7 +109,7 @@ export const GlobalStateProvider = ({
   }, [settingsState.context])
 
   // Auth machine setup
-  const [authState, authSend] = useMachine(authMachine, {
+  const [authState, authSend, authActor] = useMachine(authMachine, {
     actions: {
       goToSignInPage: () => {
         navigate(paths.SIGN_IN)
@@ -125,6 +129,7 @@ export const GlobalStateProvider = ({
     state: authState,
     send: authSend,
     commandBarConfig: authCommandBarConfig,
+    actor: authActor,
   })
 
   return (

src/components/MemoryPanel.test.tsx

@@ -25,8 +25,7 @@ describe('processMemory', () => {
     |> lineTo([-3.35, 0.17], %)
     |> lineTo([0.98, 5.16], %)
     |> lineTo([2.15, 4.32], %)
-    // |> rx(90, %)
-  show(theExtrude, theSketch)`
+    // |> rx(90, %)`
     const ast = parse(code)
     const programMemory = await enginelessExecutor(ast, {
       root: {},

src/components/ModelingMachineProvider.tsx

@@ -38,6 +38,10 @@ import { getSketchQuaternion } from 'clientSideScene/sceneEntities'
 import { startSketchOnDefault } from 'lang/modifyAst'
 import { Program } from 'lang/wasm'
 import { isSingleCursorInPipe } from 'lang/queryAst'
+import { TEST } from 'env'
+import { exportFromEngine } from 'lib/exportFromEngine'
+import { Models } from '@kittycad/lib/dist/types/src'
+import toast from 'react-hot-toast'
 
 type MachineContext<T extends AnyStateMachine> = {
   state: StateFrom<T>
@@ -54,7 +58,12 @@ export const ModelingMachineProvider = ({
 }: {
   children: React.ReactNode
 }) => {
-  const { auth } = useGlobalStateContext()
+  const {
+    auth,
+    settings: {
+      context: { baseUnit },
+    },
+  } = useGlobalStateContext()
   const { code } = useKclContext()
   const token = auth?.context?.token
   const streamRef = useRef<HTMLDivElement>(null)
@@ -170,6 +179,56 @@ export const ModelingMachineProvider = ({
           }
           return { selectionRangeTypeMap }
         }),
+        'Engine export': (_, event) => {
+          if (event.type !== 'Export' || TEST) return
+          const format = {
+            ...event.data,
+          } as Partial<Models['OutputFormat_type']>
+
+          // Set all the un-configurable defaults here.
+          if (format.type === 'gltf') {
+            format.presentation = 'pretty'
+          }
+
+          if (
+            format.type === 'obj' ||
+            format.type === 'ply' ||
+            format.type === 'step' ||
+            format.type === 'stl'
+          ) {
+            // Set the default coords.
+            // In the future we can make this configurable.
+            // But for now, its probably best to keep it consistent with the
+            // UI.
+            format.coords = {
+              forward: {
+                axis: 'y',
+                direction: 'negative',
+              },
+              up: {
+                axis: 'z',
+                direction: 'positive',
+              },
+            }
+          }
+
+          if (
+            format.type === 'obj' ||
+            format.type === 'stl' ||
+            format.type === 'ply'
+          ) {
+            format.units = baseUnit
+          }
+
+          if (format.type === 'ply' || format.type === 'stl') {
+            format.selection = { type: 'default_scene' }
+          }
+
+          exportFromEngine({
+            source_unit: baseUnit,
+            format: format as Models['OutputFormat_type'],
+          }).catch((e) => toast.error('Error while exporting', e)) // TODO I think we need to throw the error from engineCommandManager
+        },
       },
       guards: {
         'has valid extrude selection': ({ selectionRanges }) => {
@@ -192,6 +251,8 @@ export const ModelingMachineProvider = ({
             selectionRanges
           )
         },
+        'Has exportable geometry': () =>
+          kclManager.kclErrors.length === 0 && kclManager.ast.body.length > 0,
       },
       services: {
         'AST-undo-startSketchOn': async ({ sketchPathToNode }) => {

src/components/ProjectSidebarMenu.test.tsx

@@ -5,7 +5,6 @@ import { type ProjectWithEntryPointMetadata } from 'lib/types'
 import { GlobalStateProvider } from './GlobalStateProvider'
 import { APP_NAME } from 'lib/constants'
 import { vi } from 'vitest'
-import { ExportButtonProps } from './ExportButton'
 
 const now = new Date()
 const projectWellFormed = {
@@ -38,15 +37,6 @@ const projectWellFormed = {
   },
 } satisfies ProjectWithEntryPointMetadata
 
-const mockExportButton = vi.fn()
-vi.mock('/src/components/ExportButton', () => ({
-  // engineCommandManager method call in ExportButton causes vitest to hang
-  ExportButton: (props: ExportButtonProps) => {
-    mockExportButton(props)
-    return <button>Fake export button</button>
-  },
-}))
-
 describe('ProjectSidebarMenu tests', () => {
   test('Renders the project name', () => {
     render(

src/components/ProjectSidebarMenu.tsx

@@ -5,12 +5,12 @@ import { type IndexLoaderData } from 'lib/types'
 import { paths } from 'lib/paths'
 import { isTauri } from '../lib/isTauri'
 import { Link } from 'react-router-dom'
-import { ExportButton } from './ExportButton'
 import { Fragment } from 'react'
 import { FileTree } from './FileTree'
 import { sep } from '@tauri-apps/api/path'
 import { Logo } from './Logo'
 import { APP_NAME } from 'lib/constants'
+import { useCommandsContext } from 'hooks/useCommandsContext'
 
 const ProjectSidebarMenu = ({
   project,
@@ -21,6 +21,8 @@ const ProjectSidebarMenu = ({
   project?: IndexLoaderData['project']
   file?: IndexLoaderData['file']
 }) => {
+  const { commandBarSend } = useCommandsContext()
+
   return renderAsLink ? (
     <Link
       to={paths.HOME}
@@ -112,13 +114,19 @@ const ProjectSidebarMenu = ({
                 <div className="flex-1 overflow-hidden" />
               )}
               <div className="flex flex-col gap-2 p-4 dark:bg-chalkboard-90">
-                <ExportButton
-                  className={{
-                    button: 'border-transparent dark:border-transparent',
-                  }}
+                <ActionButton
+                  Element="button"
+                  icon={{ icon: 'exportFile', className: 'p-1' }}
+                  className="border-transparent dark:border-transparent"
+                  onClick={() =>
+                    commandBarSend({
+                      type: 'Find and select command',
+                      data: { name: 'Export', ownerMachine: 'modeling' },
+                    })
+                  }
                 >
-                  Export Model
-                </ExportButton>
+                  Export Part
+                </ActionButton>
                 {isTauri() && (
                   <ActionButton
                     Element="link"

src/components/Stream.tsx

@@ -1,15 +1,8 @@
-import {
-  MouseEventHandler,
-  WheelEventHandler,
-  useEffect,
-  useRef,
-  useState,
-} from 'react'
+import { MouseEventHandler, useEffect, useRef, useState } from 'react'
 import { v4 as uuidv4 } from 'uuid'
 import { useStore } from '../useStore'
-import { getNormalisedCoordinates, throttle } from '../lib/utils'
+import { getNormalisedCoordinates } from '../lib/utils'
 import Loading from './Loading'
-import { cameraMouseDragGuards } from 'lib/cameraControls'
 import { useGlobalStateContext } from 'hooks/useGlobalStateContext'
 import { Models } from '@kittycad/lib'
 import { engineCommandManager } from '../lang/std/engineConnection'
@@ -36,7 +29,6 @@ export const Stream = ({ className = '' }: { className?: string }) => {
     streamDimensions: s.streamDimensions,
   }))
   const { settings } = useGlobalStateContext()
-  const cameraControls = settings?.context?.cameraControls
   const { state } = useModelingContext()
   const { isExecuting } = useKclContext()
   const { overallState } = useNetworkStatus()
@@ -68,19 +60,6 @@ export const Stream = ({ className = '' }: { className?: string }) => {
     setClickCoords({ x, y })
   }
 
-  const fps = 60
-  const handleScroll: WheelEventHandler<HTMLVideoElement> = throttle((e) => {
-    if (!cameraMouseDragGuards[cameraControls].zoom.scrollCallback(e)) return
-    engineCommandManager.sendSceneCommand({
-      type: 'modeling_cmd_req',
-      cmd: {
-        type: 'default_camera_zoom',
-        magnitude: e.deltaY * 0.4,
-      },
-      cmd_id: uuidv4(),
-    })
-  }, Math.round(1000 / fps))
-
   const handleMouseUp: MouseEventHandler<HTMLDivElement> = ({
     clientX,
     clientY,
@@ -159,14 +138,13 @@ export const Stream = ({ className = '' }: { className?: string }) => {
         muted
         autoPlay
         controls={false}
-        onWheel={handleScroll}
         onPlay={() => setIsLoading(false)}
         onMouseMoveCapture={handleMouseMove}
         className={`w-full cursor-pointer h-full ${isExecuting && 'blur-md'}`}
         disablePictureInPicture
         style={{ transitionDuration: '200ms', transitionProperty: 'filter' }}
       />
-      <ClientSideScene cameraControls={settings.context.cameraControls} />
+      <ClientSideScene cameraControls={settings.context?.cameraControls} />
       {!isNetworkOkay && !isLoading && (
         <div className="text-center absolute inset-0">
           <Loading>

src/components/TextEditor.tsx

@@ -108,8 +108,8 @@ export const TextEditor = ({
     state,
   } = useModelingContext()
 
-  const { settings: { context: { textWrapping } = {} } = {}, auth } =
-    useGlobalStateContext()
+  const { settings, auth } = useGlobalStateContext()
+  const textWrapping = settings.context?.textWrapping ?? 'On'
   const { commandBarSend } = useCommandsContext()
   const {
     context: { project },

src/editor/plugins/lsp/kcl/index.ts

@@ -4,6 +4,7 @@ import { ViewPlugin, hoverTooltip, tooltips } from '@codemirror/view'
 import { CompletionTriggerKind } from 'vscode-languageserver-protocol'
 import { offsetToPos } from 'editor/plugins/lsp/util'
 import { LanguageServerOptions } from 'editor/plugins/lsp'
+import { syntaxTree } from '@codemirror/language'
 import {
   LanguageServerPlugin,
   documentUri,
@@ -40,6 +41,14 @@ export function kclPlugin(options: LanguageServerOptions): Extension {
           if (plugin == null) return null
 
           const { state, pos, explicit } = context
+
+          let nodeBefore = syntaxTree(state).resolveInner(pos, -1)
+          if (
+            nodeBefore.name === 'BlockComment' ||
+            nodeBefore.name === 'LineComment'
+          )
+            return null
+
           const line = state.doc.lineAt(pos)
           let trigKind: CompletionTriggerKind = CompletionTriggerKind.Invoked
           let trigChar: string | undefined
@@ -60,6 +69,7 @@ export function kclPlugin(options: LanguageServerOptions): Extension {
           ) {
             return null
           }
+
           return await plugin.requestCompletion(
             context,
             offsetToPos(state.doc, pos),

src/hooks/useDocumentHasFocus.ts

@@ -0,0 +1,31 @@
+// Based on https://learnersbucket.com/examples/interview/usehasfocus-hook-in-react/
+import { useState, useEffect } from 'react'
+
+export const useDocumentHasFocus = () => {
+  // get the initial state
+  const [focus, setFocus] = useState(document.hasFocus())
+
+  useEffect(() => {
+    // helper functions to update the status
+    const onFocus = () => setFocus(true)
+    const onBlur = () => setFocus(false)
+
+    // assign the listener
+    // update the status on the event
+    if (globalThis.window && typeof globalThis.window !== 'undefined') {
+      globalThis.window.addEventListener('focus', onFocus)
+      globalThis.window.addEventListener('blur', onBlur)
+    }
+
+    // remove the listener
+    return () => {
+      if (globalThis.window && typeof globalThis.window !== 'undefined') {
+        globalThis.window.removeEventListener('focus', onFocus)
+        globalThis.window.removeEventListener('blur', onBlur)
+      }
+    }
+  }, [])
+
+  // return the status
+  return focus
+}

src/hooks/useStateMachineCommands.ts

@@ -28,7 +28,7 @@ interface UseStateMachineCommandsArgs<
   machineId: T['id']
   state: StateFrom<T>
   send: Function
-  actor?: InterpreterFrom<T>
+  actor: InterpreterFrom<T>
   commandBarConfig?: CommandSetConfig<T, S>
   allCommandsRequireNetwork?: boolean
   onCancel?: () => void

src/lang/KclSingleton.tsx

@@ -93,7 +93,7 @@ class KclManager {
         // Note that PROJECT_ENTRYPOINT is hardcoded until we support multiple files
         this._params.id &&
           writeTextFile(this._params.id, code).catch((err) => {
-            // TODO: add Sentry per GH issue #254 (https://github.com/KittyCAD/modeling-app/issues/254)
+            // TODO: add tracing per GH issue #254 (https://github.com/KittyCAD/modeling-app/issues/254)
             console.error('error saving file', err)
             toast.error('Error saving file, please check file permissions')
           })

src/lang/artifact.test.ts

@@ -11,59 +11,53 @@ const mySketch001 = startSketchOn('XY')
   |> startProfileAt([0, 0], %)
   |> lineTo([-1.59, -1.54], %)
   |> lineTo([0.46, -5.82], %)
-  // |> rx(45, %)
-show(mySketch001)`
+  // |> rx(45, %)`
     const programMemory = await enginelessExecutor(parse(code))
     // @ts-ignore
-    const shown = programMemory?.return?.map(
-      // @ts-ignore
-      (a) => programMemory?.root?.[a.name]
-    )
-    expect(shown).toEqual([
-      {
-        type: 'SketchGroup',
-        on: expect.any(Object),
-        start: {
-          to: [0, 0],
-          from: [0, 0],
+    const sketch001 = programMemory?.root?.mySketch001
+    expect(sketch001).toEqual({
+      type: 'SketchGroup',
+      on: expect.any(Object),
+      start: {
+        to: [0, 0],
+        from: [0, 0],
+        name: '',
+        __geoMeta: {
+          id: expect.any(String),
+          sourceRange: [46, 71],
+        },
+      },
+      value: [
+        {
+          type: 'ToPoint',
           name: '',
+          to: [-1.59, -1.54],
+          from: [0, 0],
           __geoMeta: {
+            sourceRange: [77, 102],
             id: expect.any(String),
-            sourceRange: [46, 71],
           },
         },
-        value: [
-          {
-            type: 'ToPoint',
-            name: '',
-            to: [-1.59, -1.54],
-            from: [0, 0],
-            __geoMeta: {
-              sourceRange: [77, 102],
-              id: expect.any(String),
-            },
+        {
+          type: 'ToPoint',
+          to: [0.46, -5.82],
+          from: [-1.59, -1.54],
+          name: '',
+          __geoMeta: {
+            sourceRange: [108, 132],
+            id: expect.any(String),
           },
-          {
-            type: 'ToPoint',
-            to: [0.46, -5.82],
-            from: [-1.59, -1.54],
-            name: '',
-            __geoMeta: {
-              sourceRange: [108, 132],
-              id: expect.any(String),
-            },
-          },
-        ],
-        position: [0, 0, 0],
-        rotation: [0, 0, 0, 1],
-        xAxis: { x: 1, y: 0, z: 0 },
-        yAxis: { x: 0, y: 1, z: 0 },
-        zAxis: { x: 0, y: 0, z: 1 },
-        id: expect.any(String),
-        entityId: expect.any(String),
-        __meta: [{ sourceRange: [46, 71] }],
-      },
-    ])
+        },
+      ],
+      position: [0, 0, 0],
+      rotation: [0, 0, 0, 1],
+      xAxis: { x: 1, y: 0, z: 0 },
+      yAxis: { x: 0, y: 1, z: 0 },
+      zAxis: { x: 0, y: 0, z: 1 },
+      id: expect.any(String),
+      entityId: expect.any(String),
+      __meta: [{ sourceRange: [46, 71] }],
+    })
   })
   test('extrude artifacts', async () => {
     // Enable rotations #152
@@ -73,30 +67,25 @@ const mySketch001 = startSketchOn('XY')
   |> lineTo([-1.59, -1.54], %)
   |> lineTo([0.46, -5.82], %)
   // |> rx(45, %)
-  |> extrude(2, %)
-show(mySketch001)`
+  |> extrude(2, %)`
     const programMemory = await enginelessExecutor(parse(code))
     // @ts-ignore
-    const shown = programMemory?.return?.map(
-      // @ts-ignore
-      (a) => programMemory?.root?.[a.name]
-    )
-    expect(shown).toEqual([
-      {
-        type: 'ExtrudeGroup',
-        id: expect.any(String),
-        value: [],
-        height: 2,
-        position: [0, 0, 0],
-        rotation: [0, 0, 0, 1],
-        endCapId: null,
-        startCapId: null,
-        xAxis: { x: 1, y: 0, z: 0 },
-        yAxis: { x: 0, y: 1, z: 0 },
-        zAxis: { x: 0, y: 0, z: 1 },
-        __meta: [{ sourceRange: [46, 71] }],
-      },
-    ])
+    const sketch001 = programMemory?.root?.mySketch001
+    expect(sketch001).toEqual({
+      type: 'ExtrudeGroup',
+      id: expect.any(String),
+      value: [],
+      height: 2,
+      position: [0, 0, 0],
+      rotation: [0, 0, 0, 1],
+      endCapId: null,
+      startCapId: null,
+      sketchGroupValues: expect.any(Array),
+      xAxis: { x: 1, y: 0, z: 0 },
+      yAxis: { x: 0, y: 1, z: 0 },
+      zAxis: { x: 0, y: 0, z: 1 },
+      __meta: [{ sourceRange: [46, 71] }],
+    })
   })
   test('sketch extrude and sketch on one of the faces', async () => {
     // Enable rotations #152
@@ -120,14 +109,10 @@ const sk2 = startSketchOn('XY')
   // |> transform(theTransf, %)
   |> extrude(2, %)
 
-
-show(theExtrude, sk2)`
+`
     const programMemory = await enginelessExecutor(parse(code))
     // @ts-ignore
-    const geos = programMemory?.return?.map(
-      // @ts-ignore
-      ({ name }) => programMemory?.root?.[name]
-    )
+    const geos = [programMemory?.root?.theExtrude, programMemory?.root?.sk2]
     expect(geos).toEqual([
       {
         type: 'ExtrudeGroup',
@@ -138,6 +123,7 @@ show(theExtrude, sk2)`
         rotation: [0, 0, 0, 1],
         endCapId: null,
         startCapId: null,
+        sketchGroupValues: expect.any(Array),
         xAxis: { x: 1, y: 0, z: 0 },
         yAxis: { x: 0, y: 1, z: 0 },
         zAxis: { x: 0, y: 0, z: 1 },
@@ -153,6 +139,7 @@ show(theExtrude, sk2)`
 
         endCapId: null,
         startCapId: null,
+        sketchGroupValues: expect.any(Array),
         xAxis: { x: 1, y: 0, z: 0 },
         yAxis: { x: 0, y: 1, z: 0 },
         zAxis: { x: 0, y: 0, z: 1 },

src/lang/executor.test.ts

@@ -47,9 +47,8 @@ const newVar = myVar + 1`
   |> lineTo([2,3], %)
   |> lineTo({ to: [5,-1], tag: "rightPath" }, %)
   // |> close(%)
-show(mySketch)
 `
-    const { root, return: _return } = await exe(code)
+    const { root } = await exe(code)
     // geo is three js buffer geometry and is very bloated to have in tests
     const minusGeo = root.mySketch.value
     expect(minusGeo).toEqual([
@@ -84,15 +83,6 @@ show(mySketch)
         name: 'rightPath',
       },
     ])
-    // expect(root.mySketch.sketch[0]).toEqual(root.mySketch.sketch[4].firstPath)
-    expect(_return).toEqual([
-      {
-        type: 'Identifier',
-        start: 203,
-        end: 211,
-        name: 'mySketch',
-      },
-    ])
   })
 
   it('pipe binary expression into call expression', async () => {
@@ -357,7 +347,6 @@ describe('testing math operators', () => {
       `  -legLen(segLen('seg01', %), myVar)`,
       `], %)`,
       ``,
-      `show(part001)`,
     ].join('\n')
     const { root } = await exe(code)
     const sketch = root.part001
@@ -392,8 +381,7 @@ const theExtrude = startSketchOn('XY')
   |> line([-0.76], myVarZ, %)
   |> line([5,5], %)
   |> close(%)
-  |> extrude(4, %)
-show(theExtrude)`
+  |> extrude(4, %)`
     await expect(exe(code)).rejects.toEqual(
       new KCLError(
         'undefined_value',

src/lang/modifyAst.test.ts

@@ -122,7 +122,6 @@ describe('Testing addSketchTo', () => {
     expect(str).toBe(`const part001 = startSketchOn('YZ')
   |> startProfileAt('default', %)
   |> line('default', %)
-show(part001)
 `)
   })
 })
@@ -147,8 +146,7 @@ describe('Testing giveSketchFnCallTag', () => {
 |> startProfileAt([0, 0], %)
 |> line([-2.57, -0.13], %)
 |> line([0, 0.83], %)
-|> line([0.82, 0.34], %)
-show(part001)`
+|> line([0.82, 0.34], %)`
   it('Should add tag to a sketch function call', () => {
     const { newCode, tag, isTagExisting } = giveSketchFnCallTagTestHelper(
       code,
@@ -204,8 +202,7 @@ const part001 = startSketchOn('XY')
 |> angledLine([def(yo), 3.09], %)
 |> angledLine([ghi(%), 3.09], %)
 |> angledLine([jkl(yo) + 2, 3.09], %)
-const yo2 = hmm([identifierGuy + 5])
-show(part001)`
+const yo2 = hmm([identifierGuy + 5])`
   it('should move a binary expression into a new variable', async () => {
     const ast = parse(code)
     const programMemory = await enginelessExecutor(ast)

src/lang/modifyAst.ts

@@ -6,7 +6,6 @@ import {
   PipeExpression,
   VariableDeclaration,
   VariableDeclarator,
-  ExpressionStatement,
   Value,
   Literal,
   PipeSubstitution,
@@ -128,16 +127,8 @@ export function addSketchTo(
     createPipeExpression(pipeBody)
   )
 
-  const showCallIndex = getShowIndex(_node)
-  let sketchIndex = showCallIndex
-  if (showCallIndex === -1) {
-    _node.body = [...node.body, variableDeclaration]
-    sketchIndex = _node.body.length - 1
-  } else {
-    const newBody = [...node.body]
-    newBody.splice(showCallIndex, 0, variableDeclaration)
-    _node.body = newBody
-  }
+  _node.body = [...node.body, variableDeclaration]
+  let sketchIndex = _node.body.length - 1
   let pathToNode: PathToNode = [
     ['body', ''],
     [sketchIndex, 'index'],
@@ -150,7 +141,7 @@ export function addSketchTo(
   }
 
   return {
-    modifiedAst: addToShow(_node, _name),
+    modifiedAst: _node,
     id: _name,
     pathToNode,
   }
@@ -191,44 +182,6 @@ export function findUniqueName(
   return findUniqueName(searchStr, name, pad, index + 1)
 }
 
-function addToShow(node: Program, name: string): Program {
-  const _node = { ...node }
-  const dumbyStartend = { start: 0, end: 0 }
-  const showCallIndex = getShowIndex(_node)
-  if (showCallIndex === -1) {
-    const showCall = createCallExpressionStdLib('show', [
-      createIdentifier(name),
-    ])
-    const showExpressionStatement: ExpressionStatement = {
-      type: 'ExpressionStatement',
-      ...dumbyStartend,
-      expression: showCall,
-    }
-    _node.body = [..._node.body, showExpressionStatement]
-    return _node
-  }
-  const showCall = { ..._node.body[showCallIndex] } as ExpressionStatement
-  const showCallArgs = (showCall.expression as CallExpression).arguments
-  const newShowCallArgs: Value[] = [...showCallArgs, createIdentifier(name)]
-  const newShowExpression = createCallExpressionStdLib('show', newShowCallArgs)
-
-  _node.body[showCallIndex] = {
-    ...showCall,
-    expression: newShowExpression,
-  }
-  return _node
-}
-
-function getShowIndex(node: Program): number {
-  return node.body.findIndex(
-    (statement) =>
-      statement.type === 'ExpressionStatement' &&
-      statement.expression.type === 'CallExpression' &&
-      statement.expression.callee.type === 'Identifier' &&
-      statement.expression.callee.name === 'show'
-  )
-}
-
 export function mutateArrExp(
   node: Value,
   updateWith: ArrayExpression
@@ -348,15 +301,10 @@ export function extrudeSketch(
   }
   const name = findUniqueName(node, 'part')
   const VariableDeclaration = createVariableDeclaration(name, extrudeCall)
-  let showCallIndex = getShowIndex(_node)
-  if (showCallIndex === -1) {
-    // We didn't find a show, so let's just append everything
-    showCallIndex = _node.body.length
-  }
-  _node.body.splice(showCallIndex, 0, VariableDeclaration)
+  _node.body.splice(_node.body.length, 0, VariableDeclaration)
   const pathToExtrudeArg: PathToNode = [
     ['body', ''],
-    [showCallIndex, 'index'],
+    [_node.body.length, 'index'],
     ['declarations', 'VariableDeclaration'],
     [0, 'index'],
     ['init', 'VariableDeclarator'],
@@ -365,7 +313,7 @@ export function extrudeSketch(
   ]
   return {
     modifiedAst: node,
-    pathToNode: [...pathToNode.slice(0, -1), [showCallIndex, 'index']],
+    pathToNode: [...pathToNode.slice(0, -1), [-1, 'index']],
     pathToExtrudeArg,
   }
 }
@@ -425,7 +373,7 @@ export function sketchOnExtrudedFace(
   _node.body.splice(expressionIndex + 1, 0, newSketch)
 
   return {
-    modifiedAst: addToShow(_node, newSketchName),
+    modifiedAst: _node,
     pathToNode: [...pathToNode.slice(0, -1), [expressionIndex, 'index']],
   }
 }

src/lang/queryAst.test.ts

@@ -34,8 +34,7 @@ const part001 = startSketchOn('XY')
   |> xLine(3.84, %) // selection-range-7ish-before-this
 
 const variableBelowShouldNotBeIncluded = 3
-
-show(part001)`
+`
     const rangeStart = code.indexOf('// selection-range-7ish-before-this') - 7
     const ast = parse(code)
     const programMemory = await enginelessExecutor(ast)
@@ -69,8 +68,7 @@ describe('testing argIsNotIdentifier', () => {
 |> angledLine([ghi(%), 3.09], %)
 |> angledLine([jkl('yo') + 2, 3.09], %)
 const yo = 5 + 6
-const yo2 = hmm([identifierGuy + 5])
-show(part001)`
+const yo2 = hmm([identifierGuy + 5])`
   it('find a safe binaryExpression', () => {
     const ast = parse(code)
     const rangeStart = code.indexOf('100 + 100') + 2
@@ -201,8 +199,7 @@ describe('testing getNodePathFromSourceRange', () => {
   const code = `const part001 = startSketchOn('XY')
   |> startProfileAt([0.39, -0.05], %)
   |> line([0.94, 2.61], %)
-  |> line([-0.21, -1.4], %)
-show(part001)`
+  |> line([-0.21, -1.4], %)`
   it('finds the second line when cursor is put at the end', () => {
     const searchLn = `line([0.94, 2.61], %)`
     const sourceIndex = code.indexOf(searchLn) + searchLn.length

src/lang/recast.test.ts

@@ -68,8 +68,6 @@ log(5, myVar)
   |> lineTo([1, 1], %)
   |> lineTo({ to: [1, 0], tag: "rightPath" }, %)
   |> close(%)
-
-show(mySketch)
 `
     const { ast } = code2ast(code)
     const recasted = recast(ast)
@@ -331,7 +329,6 @@ describe('it recasts wrapped object expressions in pipe bodies with correct inde
        intersectTag: 'seg01'
      }, %)
   |> line([-0.42, -1.72], %)
-show(part001)
 `
     const { ast } = code2ast(code)
     const recasted = recast(ast)

src/lang/std/engineConnection.ts

@@ -796,7 +796,7 @@ interface UnreliableSubscription<T extends UnreliableResponses['type']> {
   callback: (data: Extract<UnreliableResponses, { type: T }>) => void
 }
 
-interface Subscription<T extends ModelTypes> {
+export interface Subscription<T extends ModelTypes> {
   event: T
   callback: (
     data: Extract<Models['OkModelingCmdResponse_type'], { type: T }>
@@ -926,6 +926,15 @@ export class EngineCommandManager {
           },
         })
         sceneInfra.camControls.onCameraChange()
+        this.sendSceneCommand({
+          // CameraControls subscribes to default_camera_get_settings response events
+          // firing this at connection ensure the camera's are synced initially
+          type: 'modeling_cmd_req',
+          cmd_id: uuidv4(),
+          cmd: {
+            type: 'default_camera_get_settings',
+          },
+        })
 
         this.initPlanes().then(() => {
           this.resolveReady()

src/lang/std/sketch.test.ts

@@ -101,7 +101,6 @@ describe('testing changeSketchArguments', () => {
   |> ${line}
   |> lineTo([0.46, -5.82], %)
   // |> rx(45, %)
-show(mySketch001)
 `
     const code = genCode(lineToChange)
     const expectedCode = genCode(lineAfterChange)
@@ -128,8 +127,7 @@ const mySketch001 = startSketchOn('XY')
   |> startProfileAt([0, 0], %)
   // |> rx(45, %)
   |> lineTo([-1.59, -1.54], %)
-  |> lineTo([0.46, -5.82], %)
-show(mySketch001)`
+  |> lineTo([0.46, -5.82], %)`
     const ast = parse(code)
     const programMemory = await enginelessExecutor(ast)
     const sourceStart = code.indexOf(lineToChange)
@@ -155,7 +153,6 @@ show(mySketch001)`
   |> lineTo([-1.59, -1.54], %)
   |> lineTo([0.46, -5.82], %)
   |> lineTo([2, 3], %)
-show(mySketch001)
 `
     expect(recast(modifiedAst)).toBe(expectedCode)
 
@@ -177,7 +174,6 @@ show(mySketch001)
   |> lineTo([-1.59, -1.54], %)
   |> lineTo([0.46, -5.82], %)
   |> close(%)
-show(mySketch001)
 `
     expect(recast(modifiedAst)).toBe(expectedCode)
   })
@@ -192,7 +188,6 @@ describe('testing addTagForSketchOnFace', () => {
   // |> rx(45, %)
   |> ${line}
   |> lineTo([0.46, -5.82], %)
-show(mySketch001)
 `
     const code = genCode(originalLine)
     const ast = parse(code)

src/lang/std/sketch.ts

@@ -91,12 +91,6 @@ export function createFirstArg(
   throw new Error('all sketch line types should have been covered')
 }
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-type LineData = {
-  from: [number, number, number]
-  to: [number, number, number]
-}
-
 export const lineTo: SketchLineHelper = {
   add: ({
     node,
@@ -966,6 +960,30 @@ export const angledLineThatIntersects: SketchLineHelper = {
   addTag: addTagWithTo('angleTo'), // TODO might be wrong
 }
 
+export const updateStartProfileAtArgs: SketchLineHelper['updateArgs'] = ({
+  node,
+  pathToNode,
+  to,
+}) => {
+  const _node = { ...node }
+  const { node: callExpression } = getNodeFromPath<CallExpression>(
+    _node,
+    pathToNode
+  )
+
+  const toArrExp = createArrayExpression([
+    createLiteral(roundOff(to[0])),
+    createLiteral(roundOff(to[1])),
+  ])
+
+  mutateArrExp(callExpression.arguments?.[0], toArrExp) ||
+    mutateObjExpProp(callExpression.arguments?.[0], toArrExp, 'to')
+  return {
+    modifiedAst: _node,
+    pathToNode,
+  }
+}
+
 export const sketchLineHelperMap: { [key: string]: SketchLineHelper } = {
   line,
   lineTo,

src/lang/std/sketchConstraints.test.ts

@@ -88,7 +88,6 @@ describe('testing swapping out sketch calls with xLine/xLineTo', () => {
     `  |> yLine(-1.07, %)`,
     `  |> xLineTo(3.27, %)`,
     `  |> yLineTo(2.14, %)`,
-    `show(part001)`,
   ]
   const bigExample = bigExampleArr.join('\n')
   it('line with tag converts to xLine', async () => {
@@ -290,7 +289,6 @@ describe('testing swapping out sketch calls with xLine/xLineTo while keeping var
     `  |> angledLineToX([330, angledLineToXx], %)`,
     `  |> angledLineToY([217, angledLineToYy], %)`,
     `  |> line([0.89, -0.1], %)`,
-    `show(part001)`,
   ]
   const varExample = variablesExampleArr.join('\n')
   it('line keeps variable when converted to xLine', async () => {
@@ -378,8 +376,7 @@ const part001 = startSketchOn('XY')
   |> line([0, 0.4], %)
   |> xLine(3.48, %)
   |> line([2.14, 1.35], %) // normal-segment
-  |> xLine(3.54, %)
-show(part001)`
+  |> xLine(3.54, %)`
   it('normal case works', async () => {
     const programMemory = await enginelessExecutor(parse(code))
     const index = code.indexOf('// normal-segment') - 7

src/lang/std/sketchcombos.test.ts

@@ -123,7 +123,6 @@ const part001 = startSketchOn('XY')
   |> yLine(1.04, %) // ln-yLine-free should sub in segLen
   |> xLineTo(30, %) // ln-xLineTo-free should convert to xLine
   |> yLineTo(20, %) // ln-yLineTo-free should convert to yLine
-show(part001)
 `
   const expectModifiedScript = `const myVar = 3
 const myVar2 = 5
@@ -196,7 +195,6 @@ const part001 = startSketchOn('XY')
   |> yLine(segLen('seg01', %), %) // ln-yLine-free should sub in segLen
   |> xLine(segLen('seg01', %), %) // ln-xLineTo-free should convert to xLine
   |> yLine(segLen('seg01', %), %) // ln-yLineTo-free should convert to yLine
-show(part001)
 `
   it('should transform the ast', async () => {
     const ast = parse(inputScript)
@@ -257,7 +255,6 @@ const part001 = startSketchOn('XY')
   |> angledLineToY([223, 7.68], %) // select for vertical constraint 9
   |> angledLineToX([333, myVar3], %) // select for horizontal constraint 10
   |> angledLineToY([301, myVar], %) // select for vertical constraint 10
-show(part001)
 `
   it('should transform horizontal lines the ast', async () => {
     const expectModifiedScript = `const myVar = 2
@@ -286,7 +283,6 @@ const part001 = startSketchOn('XY')
   |> angledLineToY([223, 7.68], %) // select for vertical constraint 9
   |> xLineTo(myVar3, %) // select for horizontal constraint 10
   |> angledLineToY([301, myVar], %) // select for vertical constraint 10
-show(part001)
 `
     const ast = parse(inputScript)
     const selectionRanges: Selections['codeBasedSelections'] = inputScript
@@ -345,7 +341,6 @@ const part001 = startSketchOn('XY')
   |> yLineTo(7.68, %) // select for vertical constraint 9
   |> angledLineToX([333, myVar3], %) // select for horizontal constraint 10
   |> yLineTo(myVar, %) // select for vertical constraint 10
-show(part001)
 `
     const ast = parse(inputScript)
     const selectionRanges: Selections['codeBasedSelections'] = inputScript
@@ -389,7 +384,6 @@ const part001 = startSketchOn('XY')
   |> line([0.45, 1.46], %) // free
   |> line([myVar, 0.01], %) // xRelative
   |> line([0.7, myVar], %) // yRelative
-show(part001)
 `
     it('testing for free to horizontal and vertical distance', async () => {
       const expectedHorizontalCode = await helperThing(
@@ -501,8 +495,7 @@ const part001 = startSketchOn('XY')
   |> xLine(3.36, %) // partial
   |> line([-1.49, 1.06], %) // free
   |> xLine(-3.43 + 0, %) // full
-  |> angledLineOfXLength([243 + 0, 1.2 + 0], %) // full
-show(part001)`
+  |> angledLineOfXLength([243 + 0, 1.2 + 0], %) // full`
     const ast = parse(code)
     const constraintLevels: ReturnType<
       typeof getConstraintLevelFromSourceRange

src/lang/std/std.test.ts

@@ -15,8 +15,7 @@ describe('testing angledLineThatIntersects', () => {
   offset: ${offset},
   tag: "yo2"
 }, %)
-const intersect = segEndX('yo2', part001)
-show(part001)`
+const intersect = segEndX('yo2', part001)`
     const { root } = await enginelessExecutor(parse(code('-1')))
     expect(root.intersect.value).toBe(1 + Math.sqrt(2))
     const { root: noOffset } = await enginelessExecutor(parse(code('0')))

src/lib/cameraControls.ts

@@ -40,9 +40,9 @@ export interface MouseGuard {
 }
 
 const butName = (e: React.MouseEvent) => ({
-  middle: !!(e.buttons & 4),
-  right: !!(e.buttons & 2),
-  left: !!(e.buttons & 1),
+  middle: !!(e.buttons & 4) || e.button === 1,
+  right: !!(e.buttons & 2) || e.button === 2,
+  left: !!(e.buttons & 1) || e.button === 0,
 })
 
 export const cameraMouseDragGuards: Record<CameraSystem, MouseGuard> = {

src/lib/commandBarConfigs/homeCommandConfig.ts

@@ -28,7 +28,8 @@ export const homeCommandBarConfig: CommandSetConfig<
       name: {
         inputType: 'options',
         required: true,
-        options: (context) =>
+        options: [],
+        optionsFromContext: (context) =>
           context.projects.map((p) => ({
             name: p.name!,
             value: p.name!,
@@ -43,7 +44,7 @@ export const homeCommandBarConfig: CommandSetConfig<
       name: {
         inputType: 'string',
         required: true,
-        defaultValue: (context) => context.defaultProjectName,
+        defaultValueFromContext: (context) => context.defaultProjectName,
       },
     },
   },
@@ -55,7 +56,8 @@ export const homeCommandBarConfig: CommandSetConfig<
       name: {
         inputType: 'options',
         required: true,
-        options: (context) =>
+        options: [],
+        optionsFromContext: (context) =>
           context.projects.map((p) => ({
             name: p.name!,
             value: p.name!,
@@ -71,7 +73,8 @@ export const homeCommandBarConfig: CommandSetConfig<
       oldName: {
         inputType: 'options',
         required: true,
-        options: (context) =>
+        options: [],
+        optionsFromContext: (context) =>
           context.projects.map((p) => ({
             name: p.name!,
             value: p.name!,
@@ -80,7 +83,7 @@ export const homeCommandBarConfig: CommandSetConfig<
       newName: {
         inputType: 'string',
         required: true,
-        defaultValue: (context) => context.defaultProjectName,
+        defaultValueFromContext: (context) => context.defaultProjectName,
       },
     },
   },

src/lib/commandBarConfigs/modelingCommandConfig.ts

@@ -1,7 +1,13 @@
+import { Models } from '@kittycad/lib'
 import { CommandSetConfig, KclCommandValue } from 'lib/commandTypes'
 import { Selections } from 'lib/selections'
 import { modelingMachine } from 'machines/modelingMachine'
 
+type OutputFormat = Models['OutputFormat_type']
+type OutputTypeKey = OutputFormat['type']
+type ExtractStorageTypes<T> = T extends { storage: infer U } ? U : never
+type StorageUnion = ExtractStorageTypes<OutputFormat>
+
 export const EXTRUSION_RESULTS = [
   'new',
   'add',
@@ -11,6 +17,10 @@ export const EXTRUSION_RESULTS = [
 
 export type ModelingCommandSchema = {
   'Enter sketch': {}
+  Export: {
+    type: OutputTypeKey
+    storage?: StorageUnion
+  }
   Extrude: {
     selection: Selections // & { type: 'face' } would be cool to lock that down
     // result: (typeof EXTRUSION_RESULTS)[number]
@@ -26,6 +36,80 @@ export const modelingMachineConfig: CommandSetConfig<
     description: 'Enter sketch mode.',
     icon: 'sketch',
   },
+  Export: {
+    description: 'Export the current model.',
+    icon: 'exportFile',
+    needsReview: true,
+    args: {
+      type: {
+        inputType: 'options',
+        defaultValue: 'gltf',
+        required: true,
+        options: [
+          { name: 'gLTF', isCurrent: true, value: 'gltf' },
+          { name: 'OBJ', isCurrent: false, value: 'obj' },
+          { name: 'STL', isCurrent: false, value: 'stl' },
+          { name: 'STEP', isCurrent: false, value: 'step' },
+          { name: 'PLY', isCurrent: false, value: 'ply' },
+        ],
+      },
+      storage: {
+        inputType: 'options',
+        defaultValue: (c) => {
+          switch (c.argumentsToSubmit.type) {
+            case 'gltf':
+              return 'embedded'
+            case 'stl':
+              return 'ascii'
+            case 'ply':
+              return 'ascii'
+            default:
+              return undefined
+          }
+        },
+        skip: true,
+        required: (commandContext) =>
+          ['gltf', 'stl', 'ply'].includes(
+            commandContext.argumentsToSubmit.type as string
+          ),
+        options: (commandContext) => {
+          const type = commandContext.argumentsToSubmit.type as
+            | OutputTypeKey
+            | undefined
+
+          switch (type) {
+            case 'gltf':
+              return [
+                { name: 'embedded', isCurrent: true, value: 'embedded' },
+                { name: 'binary', isCurrent: false, value: 'binary' },
+                { name: 'standard', isCurrent: false, value: 'standard' },
+              ]
+            case 'stl':
+              return [
+                { name: 'binary', isCurrent: false, value: 'binary' },
+                { name: 'ascii', isCurrent: true, value: 'ascii' },
+              ]
+            case 'ply':
+              return [
+                { name: 'ascii', isCurrent: true, value: 'ascii' },
+                {
+                  name: 'binary_big_endian',
+                  isCurrent: false,
+                  value: 'binary_big_endian',
+                },
+                {
+                  name: 'binary_little_endian',
+                  isCurrent: false,
+                  value: 'binary_little_endian',
+                },
+              ]
+            default:
+              return []
+          }
+        },
+      },
+    },
+  },
   Extrude: {
     description: 'Pull a sketch into 3D along its normal or perpendicular.',
     icon: 'extrude',

src/lib/commandBarConfigs/settingsCommandConfig.ts

@@ -41,8 +41,9 @@ export const settingsCommandBarConfig: CommandSetConfig<
       baseUnit: {
         inputType: 'options',
         required: true,
-        defaultValue: (context) => context.baseUnit,
-        options: (context) =>
+        defaultValueFromContext: (context) => context.baseUnit,
+        options: [],
+        optionsFromContext: (context) =>
           Object.values(baseUnitsUnion).map((v) => ({
             name: v,
             value: v,
@@ -57,8 +58,9 @@ export const settingsCommandBarConfig: CommandSetConfig<
       cameraControls: {
         inputType: 'options',
         required: true,
-        defaultValue: (context) => context.cameraControls,
-        options: (context) =>
+        defaultValueFromContext: (context) => context.cameraControls,
+        options: [],
+        optionsFromContext: (context) =>
           Object.values(cameraSystems).map((v) => ({
             name: v,
             value: v,
@@ -74,7 +76,7 @@ export const settingsCommandBarConfig: CommandSetConfig<
       defaultProjectName: {
         inputType: 'string',
         required: true,
-        defaultValue: (context) => context.defaultProjectName,
+        defaultValueFromContext: (context) => context.defaultProjectName,
       },
     },
   },
@@ -84,8 +86,9 @@ export const settingsCommandBarConfig: CommandSetConfig<
       textWrapping: {
         inputType: 'options',
         required: true,
-        defaultValue: (context) => context.textWrapping,
-        options: (context) => [
+        defaultValueFromContext: (context) => context.textWrapping,
+        options: [],
+        optionsFromContext: (context) => [
           {
             name: 'On',
             value: 'On' as Toggle,
@@ -106,8 +109,9 @@ export const settingsCommandBarConfig: CommandSetConfig<
       theme: {
         inputType: 'options',
         required: true,
-        defaultValue: (context) => context.theme,
-        options: (context) =>
+        defaultValueFromContext: (context) => context.theme,
+        options: [],
+        optionsFromContext: (context) =>
           Object.values(Themes).map((v) => ({
             name: v,
             value: v,
@@ -122,8 +126,9 @@ export const settingsCommandBarConfig: CommandSetConfig<
       unitSystem: {
         inputType: 'options',
         required: true,
-        defaultValue: (context) => context.unitSystem,
-        options: (context) => [
+        defaultValueFromContext: (context) => context.unitSystem,
+        options: [],
+        optionsFromContext: (context) => [
           {
             name: 'Imperial',
             value: 'imperial' as UnitSystem,

src/lib/commandTypes.ts

@@ -8,6 +8,7 @@ import {
 } from 'xstate'
 import { Selection } from './selections'
 import { Identifier, Value, VariableDeclaration } from 'lang/wasm'
+import { commandBarMachine } from 'machines/commandBarMachine'
 
 type Icon = CustomIconName
 const PLATFORMS = ['both', 'web', 'desktop'] as const
@@ -93,15 +94,31 @@ export type CommandArgumentConfig<
 > =
   | {
       description?: string
-      required: boolean
-      skip?: true
+      required:
+        | boolean
+        | ((
+            commandBarContext: { argumentsToSubmit: Record<string, unknown> } // Should be the commandbarMachine's context, but it creates a circular dependency
+          ) => boolean)
+      skip?: boolean
     } & (
       | {
           inputType: Extract<CommandInputType, 'options'>
           options:
             | CommandArgumentOption<OutputType>[]
-            | ((context: ContextFrom<T>) => CommandArgumentOption<OutputType>[])
-          defaultValue?: OutputType | ((context: ContextFrom<T>) => OutputType)
+            | ((
+                commandBarContext: {
+                  argumentsToSubmit: Record<string, unknown>
+                } // Should be the commandbarMachine's context, but it creates a circular dependency
+              ) => CommandArgumentOption<OutputType>[])
+          optionsFromContext?: (
+            context: ContextFrom<T>
+          ) => CommandArgumentOption<OutputType>[]
+          defaultValue?:
+            | OutputType
+            | ((
+                commandBarContext: ContextFrom<typeof commandBarMachine>
+              ) => OutputType)
+          defaultValueFromContext?: (context: ContextFrom<T>) => OutputType
         }
       | {
           inputType: Extract<CommandInputType, 'selection'>
@@ -111,7 +128,12 @@ export type CommandArgumentConfig<
       | { inputType: Extract<CommandInputType, 'kcl'>; defaultValue?: string } // KCL expression inputs have simple strings as default values
       | {
           inputType: Extract<CommandInputType, 'string'>
-          defaultValue?: OutputType | ((context: ContextFrom<T>) => OutputType)
+          defaultValue?:
+            | OutputType
+            | ((
+                commandBarContext: ContextFrom<typeof commandBarMachine>
+              ) => OutputType)
+          defaultValueFromContext?: (context: ContextFrom<T>) => OutputType
         }
     )
 
@@ -121,24 +143,42 @@ export type CommandArgument<
 > =
   | {
       description?: string
-      required: boolean
-      skip?: true
+      required:
+        | boolean
+        | ((
+            commandBarContext: { argumentsToSubmit: Record<string, unknown> } // Should be the commandbarMachine's context, but it creates a circular dependency
+          ) => boolean)
+      skip?: boolean
+      machineActor: InterpreterFrom<T>
     } & (
       | {
           inputType: Extract<CommandInputType, 'options'>
-          options: CommandArgumentOption<OutputType>[]
-          defaultValue?: OutputType
+          options:
+            | CommandArgumentOption<OutputType>[]
+            | ((
+                commandBarContext: {
+                  argumentsToSubmit: Record<string, unknown>
+                } // Should be the commandbarMachine's context, but it creates a circular dependency
+              ) => CommandArgumentOption<OutputType>[])
+          defaultValue?:
+            | OutputType
+            | ((
+                commandBarContext: ContextFrom<typeof commandBarMachine>
+              ) => OutputType)
         }
       | {
           inputType: Extract<CommandInputType, 'selection'>
           selectionTypes: Selection['type'][]
-          actor: InterpreterFrom<T>
           multiple: boolean
         }
       | { inputType: Extract<CommandInputType, 'kcl'>; defaultValue?: string } // KCL expression inputs have simple strings as default values
       | {
           inputType: Extract<CommandInputType, 'string'>
-          defaultValue?: OutputType
+          defaultValue?:
+            | OutputType
+            | ((
+                commandBarContext: ContextFrom<typeof commandBarMachine>
+              ) => OutputType)
         }
     )
 

src/lib/createMachineCommand.ts

@@ -17,7 +17,7 @@ interface CreateMachineCommandProps<
   ownerMachine: T['id']
   state: StateFrom<T>
   send: Function
-  actor?: InterpreterFrom<T>
+  actor: InterpreterFrom<T>
   commandBarConfig?: CommandSetConfig<T, S>
   onCancel?: () => void
 }
@@ -91,13 +91,13 @@ function buildCommandArguments<
 >(
   state: StateFrom<T>,
   args: CommandConfig<T, CommandName, S>['args'],
-  actor?: InterpreterFrom<T>
+  machineActor: InterpreterFrom<T>
 ): NonNullable<Command<T, CommandName, S>['args']> {
   const newArgs = {} as NonNullable<Command<T, CommandName, S>['args']>
 
   for (const arg in args) {
     const argConfig = args[arg] as CommandArgumentConfig<S[typeof arg], T>
-    const newArg = buildCommandArgument(argConfig, arg, state, actor)
+    const newArg = buildCommandArgument(argConfig, arg, state, machineActor)
     newArgs[arg] = newArg
   }
 
@@ -111,44 +111,36 @@ function buildCommandArgument<
   arg: CommandArgumentConfig<O, T>,
   argName: string,
   state: StateFrom<T>,
-  actor?: InterpreterFrom<T>
+  machineActor: InterpreterFrom<T>
 ): CommandArgument<O, T> & { inputType: typeof arg.inputType } {
   const baseCommandArgument = {
     description: arg.description,
     required: arg.required,
     skip: arg.skip,
+    machineActor,
   } satisfies Omit<CommandArgument<O, T>, 'inputType'>
 
   if (arg.inputType === 'options') {
-    const options = arg.options
-      ? arg.options instanceof Function
-        ? arg.options(state.context)
-        : arg.options
-      : undefined
-
-    if (!options) {
+    if (!arg.options) {
       throw new Error('Options must be provided for options input type')
     }
 
     return {
       inputType: arg.inputType,
       ...baseCommandArgument,
-      defaultValue:
-        arg.defaultValue instanceof Function
-          ? arg.defaultValue(state.context)
-          : arg.defaultValue,
-      options,
+      defaultValue: arg.defaultValueFromContext
+        ? arg.defaultValueFromContext(state.context)
+        : arg.defaultValue,
+      options: arg.optionsFromContext
+        ? arg.optionsFromContext(state.context)
+        : arg.options,
     } satisfies CommandArgument<O, T> & { inputType: 'options' }
   } else if (arg.inputType === 'selection') {
-    if (!actor)
-      throw new Error('Actor must be provided for selection input type')
-
     return {
       inputType: arg.inputType,
       ...baseCommandArgument,
       multiple: arg.multiple,
       selectionTypes: arg.selectionTypes,
-      actor,
     } satisfies CommandArgument<O, T> & { inputType: 'selection' }
   } else if (arg.inputType === 'kcl') {
     return {
@@ -159,10 +151,7 @@ function buildCommandArgument<
   } else {
     return {
       inputType: arg.inputType,
-      defaultValue:
-        arg.defaultValue instanceof Function
-          ? arg.defaultValue(state.context)
-          : arg.defaultValue,
+      defaultValue: arg.defaultValue,
       ...baseCommandArgument,
     }
   }

src/lib/exportFromEngine.ts

@@ -0,0 +1,27 @@
+import { engineCommandManager } from 'lang/std/engineConnection'
+import { type Models } from '@kittycad/lib'
+import { v4 as uuidv4 } from 'uuid'
+
+// Isolating a function to call the engine to export the current scene.
+// Because it has given us trouble in automated testing environments.
+export function exportFromEngine({
+  source_unit,
+  format,
+}: {
+  source_unit: Models['UnitLength_type']
+  format: Models['OutputFormat_type']
+}) {
+  return engineCommandManager.sendSceneCommand({
+    type: 'modeling_cmd_req',
+    cmd: {
+      type: 'export',
+      // By default let's leave this blank to export the whole scene.
+      // In the future we might want to let the user choose which entities
+      // in the scene to export. In that case, you'd pass the IDs thru here.
+      entity_ids: [],
+      format,
+      source_unit,
+    },
+    cmd_id: uuidv4(),
+  })
+}

src/lib/selections.ts

@@ -20,6 +20,7 @@ import {
   TANGENTIAL_ARC_TO_SEGMENT,
   sceneEntitiesManager,
   getParentGroup,
+  PROFILE_START,
 } from 'clientSideScene/sceneEntities'
 import { Mesh } from 'three'
 import { AXIS_GROUP, X_AXIS } from 'clientSideScene/sceneInfra'
@@ -188,7 +189,11 @@ export async function getEventForSelectWithPoint(
 export function getEventForSegmentSelection(
   obj: any
 ): ModelingMachineEvent | null {
-  const group = getParentGroup(obj)
+  const group = getParentGroup(obj, [
+    STRAIGHT_SEGMENT,
+    TANGENTIAL_ARC_TO_SEGMENT,
+    PROFILE_START,
+  ])
   const axisGroup = getParentGroup(obj, [AXIS_GROUP])
   if (!group && !axisGroup) return null
   if (axisGroup?.userData.type === AXIS_GROUP) {
@@ -407,8 +412,8 @@ function updateSceneObjectColors(codeBasedSelections: Selection[]) {
   }
   Object.values(sceneEntitiesManager.activeSegments).forEach((segmentGroup) => {
     if (
-      ![STRAIGHT_SEGMENT, TANGENTIAL_ARC_TO_SEGMENT].includes(
-        segmentGroup?.userData?.type
+      ![STRAIGHT_SEGMENT, TANGENTIAL_ARC_TO_SEGMENT, PROFILE_START].includes(
+        segmentGroup?.name
       )
     )
       return
@@ -420,7 +425,9 @@ function updateSceneObjectColors(codeBasedSelections: Selection[]) {
     const groupHasCursor = codeBasedSelections.some((selection) => {
       return isOverlap(selection.range, [node.start, node.end])
     })
-    const color = groupHasCursor ? 0x0000ff : 0xffffff
+    const color = groupHasCursor
+      ? 0x0000ff
+      : segmentGroup?.userData?.baseColor || 0xffffff
     segmentGroup.traverse(
       (child) => child instanceof Mesh && child.material.color.set(color)
     )

src/lib/tauriFS.ts

@@ -15,7 +15,16 @@ export const FILE_EXT = '.kcl'
 export const PROJECT_ENTRYPOINT = 'main' + FILE_EXT
 const INDEX_IDENTIFIER = '$n' // $nn.. will pad the number with 0s
 export const MAX_PADDING = 7
-const RELEVANT_FILE_TYPES = ['kcl']
+const RELEVANT_FILE_TYPES = [
+  'kcl',
+  'fbx',
+  'gltf',
+  'glb',
+  'obj',
+  'ply',
+  'step',
+  'stl',
+]
 
 // Initializes the project directory and returns the path
 export async function initializeProjectDirectory(directory: string) {

src/machines/commandBarMachine.ts

@@ -8,21 +8,29 @@ import {
 import { Selections } from 'lib/selections'
 import { getCommandArgumentKclValuesOnly } from 'lib/commandUtils'
 
+export type CommandBarContext = {
+  commands: Command[]
+  selectedCommand?: Command
+  currentArgument?: CommandArgument<unknown> & { name: string }
+  selectionRanges: Selections
+  argumentsToSubmit: { [x: string]: unknown }
+}
+
 export const commandBarMachine = createMachine(
   {
-    /** @xstate-layout N4IgpgJg5mDOIC5QGED2BbdBDAdhABAEJYBOAxMgDaqxgDaADALqKgAONAlgC6eo6sQAD0QBaAJwA6AGwAmAKwBmBoukAWafIAcDcSoA0IAJ6JZDaZIDs8hgzV6AjA61a1DWQF8PhtJlwFiciowUkYWJBAOWB4+AQiRBFF5CwdpcVkHS1lpVyU5QxNEh1lFGTUsrUUtOQd5SwZLLx8MbDwiUkkqGkgyAHk2MBwwwSiY-kEEswdJNWcNbPFLNMr5AsRFWUtJcVSdRR2VVMUmkF9WgI6u2ggyADFONv98WkowAGNufDeW-2GI0d443iiHESkktUUG1klTsSi0awQDgYWhmqkWjnUslBWhOZyegU61GuZAAghACN8-HhYH92FxAXFQAlRA5FpJ5FjFPYtNDpIpLOkEW4GNs4eJxJoGvJxOVcT82gSrj0AEpgdCoABuYC+8ogNOYI3psQmYlkGUkU2slhc6mkmUUCIyKLc4i0lkU8iUyjUHLlVIuJEkAGUwK8Pg8oDr-WQQ2HPpTzrTIkagUzEDkLHZkQK1CUtKCHAiNlsdjkVAdFEc-ed2oG8W0Xu9uD0kwDjcCEJDplUPfn+Ut7CUhXJJFo6uYbBOMtJq-jLrrnqGmy2HOE6dEGSbESoRSUHOVqpV99Zh7JR+PXPu1G7zI1vKcFwSAOJYbgACzAJAj+FIUAAruggzcLAFBvrgMBfH+JAkEBP4kP+gE4NwrYpoywiIA4qjyDIyR2LmlTSHY8LGBhyjsrm-L2No0hpHys4Kh0L7vp+36-gBQEgQAInAS4fFGiYGv8qFbjkpSWLmswMNK-LOI6UmSKouZOBo8jOPu9EBpITEfl+OCRmxiHAZIJIAO5YDEen4A8bB-twMZ-gARugPBwQhQEoRu7ZpoiyRbLm1HiJC16bLIQo7FYUrVNkKhZJ4971pp2ksZZBkcZIABqWCUJwECvhGZAQPwYCSA8GqoAA1sVGpZTlr5gCS8HsUhHljGhCTODYVissoxaWPutQInyFhctKSL8jFmwabWWmvjprGNYZsAZTVuW8HpZCfiQqCBmwlCvgAZtt6CSNV2WrfVC3uYJ66tVuqQlNsaTpKkUlCrMClqNeuibHUolTQSqoapwYAmfZTkuQmvzXcmnmpuhCB9eyOieuk1o6C4DokQjZHqKjO66C6-0dIDwOg2SBCpc10NtnDCTiqU0ICjyciyG4+RYwKpQaBmSKpE4dpE4GJMg2QqrqlqrlNch1PCR2vNSLa4rZq4eaDVyo4+jymRqJWDQ4vFj7E2AQMiwAohALmU9La4w7dHaaNhNjaBKnqsqCatqBrdTirMNiQuIgudB+bzld+DVuUhIGFTgxWlRVVUrXV4dS-qNs021iDyO9TslMoTj1LJWN6BYOsyphOhmDkcXNP603IMHoeWcni0FUVJU4GVlUnYnzbNxxdCroasMZwgWKPay0qWNYLhZ+UCIuGeyR6O47o0ZsAcG7XioN2Hl2Rxt0HbZIu0HUd3dnUne-AS1m5y+UWz7DkY7pKpsKDRoMz1MK4olO4G-3jgVAEA4CCASrWIedtvKiAWBaBgmQ6g2g0PaR00xWYSjHFPHQNFCIzk3jWRURJIAQNvlA4oFo8zWlSPUT00pVhYw9NMHWrhKwbH2GaNQgdYxNm-JDPAxCvLw1mAzTY3opJ9TqKFehqlUTMMwiUdIrNA5gMbB8IhQlh5bkWFsVwyJshYmkNYQs9DNhI2vJhFQZp+SgkDklXS+kr7wHUZA+G-UzwygUPyLB+xApFh9BaCU6hpSLGqNKDheC5yBlsfNCORlTLmTWpGaytl+G0wwhoEU7ilDWnMN4zGhRPqO0Cn1XQthVKaBsbNZK9iYlLUyhfBJKSR7OH2FYAi1oDGzFSNIIUGwZiVD0BKTCSkFCB2FiZRpIlMjgk+v2VQch0jEUKIYz+HoOSaA0IeJRO8m4OImXLTQjDYRpAFIsfckillZAUjYGipceQ6zvF4IAA */
+    /** @xstate-layout N4IgpgJg5mDOIC5QGED2BbdBDAdhABAEJYBOAxMgDaqxgDaADALqKgAONAlgC6eo6sQAD0QBaAJwA6AGwAmAKwBmBoukAWafIAcDcSoA0IAJ6JZDaZIDs8hgzV6AjA61a1DWQF8PhtJlwFiciowUkYWJBAOWB4+AQiRBFF5CwdpcVkHS1lpVyU5QxNEh1lFGTUsrUUtOQd5SwZLLx8MbDwiUkkqGkgyAHk2MBwwwSiY-kEEswZJbPltM0U3eXLZAsRFeQcrerUHRbTFvfkmkF9WgI6u2ggyADFONv98WkowAGNufDeW-2GI0d443iiHESkktUUilkskqdiUWjWCAcDC0kjUqnElkc6lkoK0JzOT0CnWo1zIAEEIARvn48LA-uwuIC4qAEqIHJjJPJcYtxFoYdJFFjVsZEG5pqCquJxJoGvJxOUCT82sSrj0AEpgdCoABuYC+yog9OYIyZsQmYmhWzMmTqLnU0kyikRGVRbj5lg2SmUam5StpFxIkgAymBXh8HlADQGyKHw58aecGZEzUDWYgchY7CisWoSlpQQ5EVDLJJxKkdIpyypUop-ed2kHCW0Xu9uD1kwDzcCEJCtlUNgWhZZ1OlnaKEBpZJItHVzDZ5xlpPWiZdDc8w22Ow5wozosyLUiVNMSg5ytVKmfrIipzO564z2otPVpI1vKd18SAOJYbgACzAEhI3wUgoAAV3QQZuFgCg-1wGAvjAkgSCgkCSHAyCcG4TtUxZYRED2TQZGSOw80qaQ7ARCc9mmZYSksextGkNJBRXFUOh-f9AOA0CIKgmCABE4E3D5oyTE1-lww8clKBjZF2Bh5SFZwXUUyRVDzJwNE2LQzzYwNJE4gCgJwKNeMw6DJHJAB3LAYlM-AHjYMDuFjMCACN0B4NCMKgnD927dMkWSUs8yY8RISfWQshvcsrDlapshULJPHfZsDKM7iHPM-jJAANSwShOAgX9IzICB+DASQHh1VAAGsqp1Qrit-MByXQvisP8sY8ISZwbCsDllBLSwz1qRFBQsRZ5WRIVkui-TG0M39jJ4jqLNgfLmpK3hTLIQCSFQIM2EoX8ADMjvQSQmqKna2vWvyJL3HrD1SEoyzSdJUkUm9dnUtQn10aK6hkxbiU1HVODAay3M87zE1+J6UwCtN8IQUauR0OZ0ksFwUUqRFPWmUdouPXR3TBjoIahmHKQIHKuqRrtUYSaVShhLF+TkeTzBFQosVKDRM2RVInEdSmg2p6GyE1bU9R8zrsKZqSexFqQHWlHNXHzCbFhnX1+UydFkVxiXJClmGAFEIG8hmld3ZGXp7TR5C5RSCxdjlQV1tR9bqaVdhsSFxDN5AALeOrgPa3ysJgiqcCqmr6sa7bWujxXjQd5nesQZYthsblIQYJx6hUic9AsdEFT2HQzByVLmgDJaw-eSOHPTjbysq6qcFqhrrtT9sO-4ugd1NFGc4QXEPo5eVLGsFxlnKREXGnZI9HcT1mOikO0s-S5w7bqNh9j-bkKOyQTvOy6B9utOHtj7qD1V8pSyrHJZ3STY4QmjQ0R2Ww0oSjuF3u+HAqAIBwEEOlRs48nZBVENkKQNprC42qBoJ0LothaXMJ9aElRXDLj3k3VUpJIBwOfgg4oMx8y41SPUOY8p5DFk2GiKoxsoRVmhGoM2cY2zAQRngChgU0a7HZtFH0ilRp1D5usVh6JXCKD2CUdI8lQ7rlbB8chkkJ6HkxFsBeulbQZAUCwrYCiqzIhyE+fqZtMomTMg-aCwiWYEV2NOBUCghQ6EFGzYsvpwQUT5MxawFECx2JWllRxMdLI2TsrtKMTkXIuMnmeCiZYwrePMFWCKv1XZKVGroWwmxNARK4g4hWG0tp3wSSk16lQpC41ULjV8uxUjSBvFCNEDTdCOkWCY44xCGzgzAJDaGdTnaZHBADYcqg5DpCovzeRno5izA0BeUOh8o5OPgDo+BaNvqV0xNFaE7gdYTnnvkmUChdKEMyF4LwQA */
+    predictableActionArguments: true,
+    tsTypes: {} as import('./commandBarMachine.typegen').Typegen0,
     context: {
-      commands: [] as Command[],
-      selectedCommand: undefined as Command | undefined,
-      currentArgument: undefined as
-        | (CommandArgument<unknown> & { name: string })
-        | undefined,
+      commands: [],
+      selectedCommand: undefined,
+      currentArgument: undefined,
       selectionRanges: {
         otherSelections: [],
         codeBasedSelections: [],
-      } as Selections,
-      argumentsToSubmit: {} as { [x: string]: unknown },
-    },
+      },
+      argumentsToSubmit: {},
+    } as CommandBarContext,
     id: 'Command Bar',
     initial: 'Closed',
     states: {
@@ -267,7 +275,6 @@ export const commandBarMachine = createMachine(
             data: { [x: string]: CommandArgumentWithName<unknown> }
           },
     },
-    predictableActionArguments: true,
     preserveActionOrder: true,
   },
   {
@@ -279,28 +286,45 @@ export const commandBarMachine = createMachine(
           (selectedCommand?.args && event.type === 'Submit command') ||
           event.type === 'done.invoke.validateArguments'
         ) {
-          selectedCommand?.onSubmit(getCommandArgumentKclValuesOnly(event.data))
+          const resolvedArgs = {} as { [x: string]: unknown }
+          for (const [argName, argValue] of Object.entries(
+            getCommandArgumentKclValuesOnly(event.data)
+          )) {
+            resolvedArgs[argName] =
+              typeof argValue === 'function' ? argValue(context) : argValue
+          }
+          selectedCommand?.onSubmit(resolvedArgs)
         } else {
           selectedCommand?.onSubmit()
         }
       },
       'Set current argument to first non-skippable': assign({
-        currentArgument: (context) => {
+        currentArgument: (context, event) => {
           const { selectedCommand } = context
           if (!(selectedCommand && selectedCommand.args)) return undefined
+          const rejectedArg = 'data' in event && event.data.arg
 
           // Find the first argument that is not to be skipped:
           // that is, the first argument that is not already in the argumentsToSubmit
           // or that is not undefined, or that is not marked as "skippable".
           // TODO validate the type of the existing arguments
           let argIndex = 0
+
           while (argIndex < Object.keys(selectedCommand.args).length) {
-            const argName = Object.keys(selectedCommand.args)[argIndex]
+            const [argName, argConfig] = Object.entries(selectedCommand.args)[
+              argIndex
+            ]
+            const argIsRequired =
+              typeof argConfig.required === 'function'
+                ? argConfig.required(context)
+                : argConfig.required
             const mustNotSkipArg =
-              !context.argumentsToSubmit.hasOwnProperty(argName) ||
-              context.argumentsToSubmit[argName] === undefined ||
-              !selectedCommand.args[argName].skip
-            if (mustNotSkipArg) {
+              argIsRequired &&
+              (!context.argumentsToSubmit.hasOwnProperty(argName) ||
+                context.argumentsToSubmit[argName] === undefined ||
+                (rejectedArg && rejectedArg.name === argName))
+
+            if (mustNotSkipArg === true) {
               return {
                 ...selectedCommand.args[argName],
                 name: argName,
@@ -308,14 +332,10 @@ export const commandBarMachine = createMachine(
             }
             argIndex++
           }
-          // Just show the last argument if all are skippable
+
           // TODO: use an XState service to continue onto review step
           // if all arguments are skippable and contain values.
-          const argName = Object.keys(selectedCommand.args)[argIndex - 1]
-          return {
-            ...selectedCommand.args[argName],
-            name: argName,
-          }
+          return undefined
         },
       }),
       'Clear current argument': assign({
@@ -333,8 +353,6 @@ export const commandBarMachine = createMachine(
       'Set current argument': assign({
         currentArgument: (context, event) => {
           switch (event.type) {
-            case 'error.platform.validateArguments':
-              return event.data.arg
             case 'Edit argument':
               return event.data.arg
             default:
@@ -343,27 +361,22 @@ export const commandBarMachine = createMachine(
         },
       }),
       'Remove current argument and set a new one': assign({
-        currentArgument: (context, event) => {
-          if (event.type !== 'Change current argument')
-            return context.currentArgument
-          return Object.values(event.data)[0]
-        },
         argumentsToSubmit: (context, event) => {
           if (
             event.type !== 'Change current argument' ||
             !context.currentArgument
           )
             return context.argumentsToSubmit
-          const { name, required } = context.currentArgument
-          if (required)
-            return {
-              [name]: undefined,
-              ...context.argumentsToSubmit,
-            }
+          const { name } = context.currentArgument
 
           const { [name]: _, ...rest } = context.argumentsToSubmit
           return rest
         },
+        currentArgument: (context, event) => {
+          if (event.type !== 'Change current argument')
+            return context.currentArgument
+          return Object.values(event.data)[0]
+        },
       }),
       'Clear argument data': assign({
         selectedCommand: undefined,
@@ -388,11 +401,6 @@ export const commandBarMachine = createMachine(
       }),
       'Initialize arguments to submit': assign({
         argumentsToSubmit: (c, e) => {
-          if (
-            e.type !== 'Select command' &&
-            e.type !== 'Find and select command'
-          )
-            return c.argumentsToSubmit
           const command =
             'command' in e.data ? e.data.command : c.selectedCommand!
           if (!command.args) return {}
@@ -421,38 +429,67 @@ export const commandBarMachine = createMachine(
       },
       'Validate all arguments': (context, _) => {
         return new Promise((resolve, reject) => {
-          for (const [argName, arg] of Object.entries(
-            context.argumentsToSubmit
+          for (const [argName, argConfig] of Object.entries(
+            context.selectedCommand!.args!
           )) {
-            let argConfig = context.selectedCommand!.args![argName]
+            let arg = context.argumentsToSubmit[argName]
+            let argValue = typeof arg === 'function' ? arg(context) : arg
 
-            if (
-              ('defaultValue' in argConfig &&
-                argConfig.defaultValue &&
-                typeof arg !== typeof argConfig.defaultValue &&
-                argConfig.inputType !== 'kcl') ||
-              (argConfig.inputType === 'kcl' &&
-                !(arg as Partial<KclCommandValue>).valueAst) ||
-              ('options' in argConfig &&
-                typeof arg !== typeof argConfig.options[0].value)
-            ) {
-              return reject({
-                message: 'Argument payload is of the wrong type',
-                arg: {
-                  ...argConfig,
-                  name: argName,
-                },
-              })
-            }
+            try {
+              const isRequired =
+                typeof argConfig.required === 'function'
+                  ? argConfig.required(context)
+                  : argConfig.required
 
-            if (!arg && argConfig.required) {
-              return reject({
-                message: 'Argument payload is falsy but is required',
-                arg: {
-                  ...argConfig,
-                  name: argName,
-                },
-              })
+              const resolvedDefaultValue =
+                'defaultValue' in argConfig
+                  ? typeof argConfig.defaultValue === 'function'
+                    ? argConfig.defaultValue(context)
+                    : argConfig.defaultValue
+                  : undefined
+
+              const hasMismatchedDefaultValueType =
+                isRequired &&
+                typeof argValue !== typeof resolvedDefaultValue &&
+                !(argConfig.inputType === 'kcl' || argConfig.skip)
+              const hasInvalidKclValue =
+                argConfig.inputType === 'kcl' &&
+                !(argValue as Partial<KclCommandValue> | undefined)?.valueAst
+              const hasInvalidOptionsValue =
+                isRequired &&
+                'options' in argConfig &&
+                !(
+                  typeof argConfig.options === 'function'
+                    ? argConfig.options(context)
+                    : argConfig.options
+                ).some((o) => o.value === argValue)
+
+              if (
+                hasMismatchedDefaultValueType ||
+                hasInvalidKclValue ||
+                hasInvalidOptionsValue
+              ) {
+                return reject({
+                  message: 'Argument payload is of the wrong type',
+                  arg: {
+                    ...argConfig,
+                    name: argName,
+                  },
+                })
+              }
+
+              if (!argValue && isRequired) {
+                return reject({
+                  message: 'Argument payload is falsy but is required',
+                  arg: {
+                    ...argConfig,
+                    name: argName,
+                  },
+                })
+              }
+            } catch (e) {
+              console.error('Error validating argument', context, e)
+              throw e
             }
           }
 

src/machines/fileMachine.ts

@@ -7,7 +7,7 @@ export const DEFAULT_FILE_NAME = 'Untitled'
 
 export const fileMachine = createMachine(
   {
-    /** @xstate-layout N4IgpgJg5mDOIC5QAkD2BbMACdBDAxgBYCWAdmAHTK6xampYAOATqgFZj4AusAxAMLMwuLthbtOXANoAGALqJQjVLGJdiqUopAAPRAHYAbPooAWABwBGUwE5zAJgeGArM-MAaEAE9EN0wGYKGX97GX1nGVNDS0MbfwBfeM80TBwCEnIqGiZWDm4+ACUwUlxU8TzpeW1lVXVNbT0EcJNg02d-fzt7fU77Tx8EQ0iKCPtnfUsjGRtLGXtE5IxsPCIySmpacsk+QWFRHIluWQUkEBq1DS1TxqN7ChjzOxtXf0t7a37EcwsRibH-ZzRezA8wLEApZbpNZZTa5ba8AAiYAANmB9lsjlVTuc6ldQDdDOYKP5bm0os5TDJDJ8mlEzPpzIZHA4bO9umCIWlVpkNgcKnwAPKMYp8yTHaoqC71a6IEmBUz6BkWZzWDq2Uw0qzOIJAwz+PXWfSmeZJcFLLkZSi7ERkKCi7i8CCaShkABuqAA1pR8EIRGAALQYyonJSS3ENRDA2wUeyvd6dPVhGw0-RhGOp8IA8xGFkc80rS0Ua3qUh2oO8MDMVjMCiMZEiABmqGY6AoPr2AaD4uxYcuEYQoQpQWNNjsMnMgLGKbT3TC7TcOfsNjzqQL0KKJXQtvtXEdzoobs9lCEm87cMxIbOvel+MQqtMQRmS5ks31sZpAUsZkcIX+cQZJIrpC3KUBupTbuWlbVrW9ZcE2LYUCepRnocwYSrUfYyggbzvBQ+jMq49imLYwTUt4iCft+5i-u0-7UfoQEWtCSKoiWZbnruTqZIeXoUBAKJoihFTdqGGE3rod7UdqsQTI8hiGAqrIauRA7RvYeoqhO1jtAqjFrpkLFohBHEVlWzYwY2zatvxrFCWKWKiVKeISdh4yBJE-jGs4fhhA4zg0kRNgxhplhaW0nn4XpUKZEUuAQMZqF8FxLqkO6vG+hAgYcbAIlXmJzmNERdy0RYNiKgpthxDSEU6q8MSTJYjWGFFIEULF8WljuSX7jxx7CJlQY5ZYl44pht4IP61gyPc8njt0lIuH51UKrVVITEyMy2C1hbtQl-KmdBdaWQhGVZYluWjeJjSTf402shMEyuEyljPAFL0UNmMiuN86lWHMiSmvQ-HwKcnL6WA6FOf2k3mESMRDA4RpUm4U4qf6gSEt0QIvvqfjOCaiyrtF6zZPQXWQ+GWFlUEsbmNMf1TV9NLeXDcqRIySnNaaYPEzC5M9vl-b+IyFCjupryPF9jKWP5Kks-cbMWLERHRNt0LFntkgU2NLk4dqsz43YsTK++Kk2C+MbTOOcxzOMrhqzFxTgZ1Qba1dd6BUE1jGsLMxxK9KlDNqm3tMLUQvqYlgO5QhlsTubsFXesTTUuPTfHExshDS0RftRftGgEnTZtHbX9Zr+QJ-2S4Y3qnmTC+4tMyp1EfeOnmeQqdOhyXQrFOXXCV1hCkmLDOnBJYvRRDSsyRzGjiKj0lKdAkANAA */
+    /** @xstate-layout N4IgpgJg5mDOIC5QDECWAbMACAtgQwGMALVAOzAGI9ZZUpSBtABgF1FQAHAe1oBdUupdiAAeiAKwBGcQDoALACYAHAE4AzGoUA2JXK1yANCACeiabOmSlGpkqsqAvg6NpMuQiXIyAEtSykuLAAzDDgKAGEAJzA8XmwQzGY2JBBuPgEhFLEESTVxWS1xBWVVcTU5PXEjUwRNFRkFWwB2FQVxJia5JnE5JxdQ92IyMB8-BLCAJTBSPBx40KThNNR+QWFslSVZJS1u3TUVSR1xJurEXSYZJslipismbTklPpBXbHwhr19YYNDYCOisXmiVYSx4Kwy6zMeQKRRKKjKFUKZwQPXqkjkmjUTCYWi0TQOCheb0GnhG31+mH+ABEwJg4pSwIsUstVplQNlcvkZIVikpSuVKijdFoZOItJJpEomtcYUTnK8Bh8yaMfuN-gB5DjTRnMzjgtlQnIwnlw-kIwXIkyIdSSGRKHF5XFqSwdYlKjzDVWM-4AZTAvCwsDpYAIcQgWAgqGiYa4kWMetSBshWTMNyaMkOuV0ChUBJUEpRnUuux6WmxGkkTF6CpJyq9URi-FIUEZFAgghGZAAblwANYjAiAuIAWnGidZKY50O5vPhiKF1oQcnF9q0myYCN2FSa4ndbnrXkbsTIrfGFDAkUicZkHHQsSCcZwMiHTbAY4WoJZybWqeNq82ddygUaQHiqJc7BkTRcwUOQjmKHR133d5PS8KYZhwU82w7Lwe37EZogw99xy-fV0l-adalzeQVForY1Ada4ni0FE5CaJRM0UAlmm6LRkNJL10NmLDz0va9Ilve9eEfSJn0I2ZiM-ZIyIhCjREQOoaLospGIxHYUQY0U8VaVoJUdB5+MPEZaXpETQnbTsZDwgcZAgENRxI5Sk3I9l1P-UVci6cUbg0JRlBRcRNkzHRdwUGVaPEOxLNQ6z3LszALyvG87wfJ9XPcxSQS8yc1M5PIMz0aU7gYuQCyOIsegaaUCTCwpnT42sPU+EYpjwKMWx9BzcNIXsXMBCAPypCcf187I7DUGQqweWDGgJNR8SLJ55AY9ibgLPJy2S7qZF6-qzz+IauxG-CZHGya4AYSRipmo15sWnFikUDoNA2pcXVkBQbFo7FuMkJojpVU70rCMTsqkmS5JiCb1WmnzXtyd7lq+tbfpqYoFEzSL9DqNofo6-oDxSigpiCaJYCIVHVNmxAtEaBpyxuZQ8iOaQUTBjNpWJxo2l3TpnheAI3PgFI6xSsE0b-EcWKXJWZBxHF2hAip0ySzrKeOikAh9eWmaNSVriappqy2CpWkkAzqLUJp8Q5h4DgRGsKZQg2xj+E3DT-c2OIlGVdwqFc4rUYUuntB0wesaQmhAvc9e9lVj2bc7MH9qc-OkNjMwFfkygLWqIpxe0cTsWCOiOE4IcE6ZhIG8Yc9KxBFFYlp5EkWirFB6Q1AbrwbIDaG2+ZnIegzTYLWLg59BUYUmAWwHKo3B51HlL2BLQpHoellSA8oooOOsSLGiRdowdY2r7RWu5OhdQLycVfWVS1aZx+-BXKPzmei70VLkvJcKhbBijKHicq3QQLiycEAA */
     id: 'File machine',
 
     initial: 'Reading files',
@@ -24,6 +24,8 @@ export const fileMachine = createMachine(
         })),
         target: '.Reading files',
       },
+
+      Refresh: '.Reading files',
     },
     states: {
       'Has no files': {
@@ -158,7 +160,8 @@ export const fileMachine = createMachine(
             type: 'done.invoke.read-files'
             data: ProjectWithEntryPointMetadata
           }
-        | { type: 'assign'; data: { [key: string]: any } },
+        | { type: 'assign'; data: { [key: string]: any } }
+        | { type: 'Refresh' },
     },
 
     predictableActionArguments: true,

src/machines/modelingMachine.ts

@@ -104,6 +104,7 @@ export type ModelingMachineEvent =
   | { type: 'Constrain parallel' }
   | { type: 'Constrain remove constraints' }
   | { type: 'Re-execute' }
+  | { type: 'Export'; data: ModelingCommandSchema['Export'] }
   | { type: 'Extrude'; data?: ModelingCommandSchema['Extrude'] }
   | { type: 'Equip Line tool' }
   | { type: 'Equip tangential arc to' }
@@ -119,7 +120,7 @@ export type MoveDesc = { line: number; snippet: string }
 
 export const modelingMachine = createMachine(
   {
-    /** @xstate-layout N4IgpgJg5mDOIC5QFkD2EwBsCWA7KAxAMICGuAxlgNoAMAuoqAA6qzYAu2qujIAHogC0AdgCsAZgB04gEyjhADnEA2GgoUAWJQBoQAT0QBGGuICckmoZkbTM42YWKAvk91oMOfAQDKYdgAJYLDByTm5aBiQQFjYwniiBBFtpGhlxDRphGg1ZURlhXQMEcRLDSVF5UwV84XEK8Rc3dCw8KElsCEwwHz9A4NCuXAjeGI5B3kTBLWFJDWV5hVSZZTrlBUKjS1FZiUrDeWVDasaQdxb8ds7ugFFcdjAAJ0CAaz9yAAthqNG4iaF07bCNLiRYlGiZUyZDbFYQzfIaLSQ5Sw0TGZQnM6eNodLoEW73J6wV7sD5UQyRZisMbcP4IQRrGiSdRmfIqUxrCrQlbKcoQ4RHDTWUx5DHNLGXXHXPjsB4AVwwX0psXGCSEohWO3Uh2UOSsmmhhn2jPyNGUolMhjWwvZoo8rUk3mJH2IZEomEdb0+9BGVN+qoQhoUPOMwgRi1BplkBqOZUDCkN4ksClEClt5zaHpJ7wdTveAEkrj0AkEugNwt7vr6VaBEoZQ2UKsIOcmrPMDRCLIKaOa6oKU6I0+LMx8c56C7jkCRXn0oABbMB3fwAN0enHIJEwiuiVZp-qsFskRxkmibmlSBX0Rg0hikifBcgk+SUGkH9uH2ff4+6k+nQTnC4Cd5UAebAAC9uHYDctx+at+CMeFJFUINu0NfJkRkA1xENcoNHkSwVmMCoZFfC531HLMv2IbhYBlEg8H8ICQPAu4N38CBsBo10wGgnd4hreDRA0Ts0hoKp0gtdRoTSdkLAqURwVwi0bxIjNc3Ij5KKIajaPolcHjXVj2M4ihuIrJVqT4uCA2WBRJGFY9UR1YxNAwy8EBkVlymsAVYSBM0X1cU4xTfNTP0LLTcBoh46NwfwAEEACFvH8AANHjlV3fjrOTWZxDEQwbCwmRbHEKThSE4VkUWVJzVqBpAsxELPXU-Nwu06L6MS5KAE10os2k9W2aw7GUOR9jNUboUTdRJCBOTLTUUMAqaO1SNC3NNPamL-DIKAuj6v0spvHJpCUapk0UOtTCk+S4X7Xz1WEUxTGEFSWpazbIp02KunwdgvQpbcMss2sShmFR1VEm80n2KTDlsptTGvJ6wxUV6GuCtbmrC3EIqi7amEeQncHY8hZUwEgniMyCTIO2Daw82ybEjKwMiOVRlCk+MhP5KoXqBBENDEN6yJx7o8e+hjgLAiCN0wPQdpwKAhjMoH+r3ZYZCZFMtAkXCMhWA1HMkYqddhfJ1RKEX1rHNqvo62K9IMzB5cV7BlbpzKrKsJ7cuPJ7HLMVEDVG7YUxeqo1mKxx6pW9N3rFqj7e22BcBIJh-HYVBUs9kGjCwqRlhBNQXuqMwpOyLWPPVeZVBTIFiIx1bVOxja7fx+jU-TzPs961WYK90GbwsJssNhPLjA0KSCpmQTHDkC1Qx1WOgubhO29xrb6LAABHWVWN+qB-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-IUljxSEcDfOwpQgTbMkEigIxL0XVOMnU7Flzrm3JIPc4CTzCV8tJWMil7kipMm7GIReOsmWCkPBNVIIJzpKC5Ty+KSVUqnPOa03A7S8D4vaYSkgAAjWAgg+Bkq+YDAeecFWWlmqNe8cg6jrDcsVUah4MjXmXprWo+qSnIq6sa4VDwrkPBuXch5UqXl2odU6uV3zDqxLHrlHVdRIRzzKp6v1ZosLZFDO-eFTVdEGpjd1E1zSzUWs6d061ab7WCD0M6+V6zpCNgqLYOBuEpqmhmDYOx8l6HdjyY1LGdao0BAbU2i58bRXJslc8-p6bu29uzfTSlebzwrD8isUNU1LRCVNOyUaY08qcPyQixdezdpdFXS2vF7bt2CDfYIrNrrgH+hhuDSwN4b7PWDgGioPJIzdjAxUIMsJI2vvwO+uNCak3ipTT+v9+7AM2OA1hBG2Q9RWBLnWG6dZDzgayHIbsyx0ZcNrSOA1h9-oftxZa79hL2PvHwz6QjvysLbByNJKBMhzxwxyqaDlKg6xWBQ8ivjq6RWJrFRKx5P6+MCcrEJ3NnrjAmBTJaE8rkijLA1fMawdiFEonRDWhdrGl3+EJg8YmpNyaUwFbU8x2LP3cYJS8tzHm0VeYeIIY5JldPmRzZMzWdl6HWDvVHUQXM5DSH5HMM0kHfVKYCCFhcnmKZU0xSZVT671Obq04SwrJMwslci2VygMW1ZxcpQl4UShkseVS1JXymWCrzHNPZCQXLTHmosZgIsfRSxxD7ZJ8w15JNHEyEcPIqTKUvUPF10SNmkKPvnS3XRE3zFZ0sXiQxGcaYwDuOEqpkTokHsHpS2EQl9hmHBOoPmnM3L83zYoWEokHPMac9mU7U3JB5lwBwAgC2VBMgSatpGC8uTxhNiCSMkI8pPTSONsxkPoew7JARn5sT8ha3kseK95GNnQlhEtlYEhNkbPBKg0Hx2RwQ-O5gSQuBJUbhmyWEI83nvuusLUaQx54wcIyDXLkQtZrXgUdza8WF8eTZ55IAActnAACqgPApCCBxQgBAQIkF9KucN3cPt8wKqv3NIKRYOouQbNyhHLIigzoa7O6gSxOv9c2+N6QEyVjSftYDJocwJg0jVFErrFxRQshlBsIg0ox4VhcqJ+wOHYuBr4VmBdOlDGE8GmBLMDRywoWWbhRz96Oe4fkkE2T2sKEmSQkhHMWQ4ICrl4PIoPWhxLORhB0+lj2YAAqoS7sRIeFErOQv+ii4j4e9yo1zAbKUMKRMthirl+vEyK9knLC4RTFy6f+Awlz4X80wJwTuf+-Dy3yPlnpmJkH8KU05nEBIx5ObNIPCU0OYJjcfMHSQWUEmbOTifSd8AAeVwBxXNS-R6Tim8En0EEgNaUEBgPYHgJVlXxewDFkCkDmBMFwlEkyEWDvkQHNFshbEQxpScW2X8H538AaRIEoB6DmzYjAA4PJgKwpnNXlUEAKnMASWM0NFDAkFgS5AyyRnZCG0sAfFAKO0kDIGwFnHFVaB7lcyEO6ACzbR6Q0K0PuEECzkEA4MoHlUUUPGoMWAyCWChDclGniSsDBBBVDHUDehMO0PwF0LFXNSXzm0GD7SBBozkAXiQlDGhDnkPFWDsHBBWBqB8Jh1MJ0Kzn8GERqR0KJE9CQNbStXULSPFUEQsLyKzBsLNCoVZGeg8jSFhGhDoQHWPGALsDmFoRcECn5wwHgCiCOxfzX0EEWDKFyGySQk0B0DckEEEiVSgX2DyFGktDehxDAEGKIPpEoUehehBFwhPGUXRwkDUA+3cMsGrXr3fHWPdXZCZmLxUFLyRimi1g2UqEDmcnZzAM5w-EwSuJAWehNh1HjDymqF2GjGSBvDylSGqAtBhPy32SGUqR8yxU+V+L3CDCZgyFLn5BqFSDBWSABDvHmFsH5DhJlQxUFT8xRL01byMBUU1V7ykQ3yUQDXowsG8m5mG1RDhJjRSibVRKOjsSkDUCKlH0SNEjKiwh2CqlUAWhTEO0xi+O5RcxXTGX5O9jsUp1oWI0rjHWqOrkHSqGhLhL-T5OpMjyOGFEQjvByAcDyEjBujUCZDjxg0yFGjqDhJU1VLNLXwtMZAyFWBM1HzbADW5FmhhMcGRCRktjhLq2K28yiyFSpNix9OTH-3ZHkjPDTxKH63R15mTAtEbBtEc0VMf0sTVMmXsBHhKGTEnXRNiNUBNmVxWBl1wmRF90Jxh3YHLMpX2GYTqhrMNLWC5HBPmByRWC7w2XbK1350eQ3G7PchsAnXHmKjUFjx-wQBT1mEUMjCKiDFkCnKf0D38ANyNz6OTKIOsAkBNiYS0HsDSENjcibCrnjATCOCbFvOz07PnMIk331msBMG3z7xgRjBo3UATCTHP2LPekv1u04Bvx7nnLkE0Fmj8hUAciemuhgQYwBKDA5GvisA+LULIiwOgMtzwNzAQO-KtHKF7FTL9VkEwqKEEh5DmAZTPyqnVBYLYKsLWO9I2L7BouWVUDqCekmhcIy2vHsGnS0FkFTCgt8M4H8MyMCN4vPPdUtCkBelZxsHkFpzkJ5AAojLnmmlUIVOKM0L8KgF0OyJolyNzG-McBNlhGQjynZHZSmibF5HsGoKFmKgKi6KcCAA */
+    /** @xstate-layout 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-Gd4mLP9A0kVQzW3I18mRGRDXEI1yl1LJDBWYwKhkZCU3QtDc0w4huFgGUSDwfxCOIsi7g-fwIGwaTMzAKjlVnWiECsPdNzSGgqnSAD1GhNJ2QsCpRHBXUAJbYSxJ7FzB2HIgpJkuSX1dbB30wVT1IoigtKnJVqRo399OWBR-TyFdlCgtRBUs1lymsAVYRjPdnNQs8PK8h5ZNwfwAEEACFvH8AANbTItpKx21mcQxEMGxOP-NJLJ1eL41gndagaVxTjFY9RIK3FPNwaTirkyrqoATXqr09Ka7ZrDsZQ5H2ZQtXYiDijUOKgVsvi1ErPKJvQiTptmkr-DIKAuhWn8S3SKQQRBU15H1YRTEsuy4QPbKtX+gMrtzNyMMKmbvNKrp8HYPMKQ9HSove1rpD21QANkTjREsw4Tu1KD-oRBNhEh1zJu6O74f8JhHiZ3A1PIWVMBIJ41I00LXt06KrFNWYLU6jIjlUZRLP1P1+SqAMgQRDQxGpj5oduoqHoU0jyI-TA9EenAoCGcK0YaudlhkJlQ3bAEMhWQ1UR5f9Q1hfItRKVXTxu2H7p819-L1g2P2wY3+YxujzByU1-qdsxUUNbbtj1AMqjWf9HGGpp7RQ67xN9hnYFwEgmH8dhUFq8PGs4qRlhBNQA2qMxLOyK2ZDkeZ5m3Rx2699WC7m0qi5LsuK+W03vwF97oMyfjYVa4wNEs9qZj3Hud3nOYcj72nJLhwf-DAABHWUVMRqBkari3a3KFf-qyPIJHAop51bFqTHBbccdMHefamzW5JMC5nragE9qLV3yBYdu-EdzpE3oaWsMwTCcUOBaTIahDwjUxONKGu96YHweGAW8qAXz+HIAAu4sAr5rWsHFQ41h9qaH2DoQ6RxOIWD4rYbIYIzRCSwWNXOuC-7dAAEpgEEGAPgIRZT3GoYLOoUgWyGFrKkdIYgE6HXUFbdIqRkSdwTLafhOcRJCPzpKE+2BS4ABk8BgFHqgT8YD0aNQUNZCQKgbDCnSBZTRdReSK3bnuPaRpf5mJuBY0uIUYB3GwCpLm5BR5yMSFtOKIIPZ8V+go+slhoxrFUJkhESU+5lQAO6yQIkRHWylAo8xCpQfweAABmqACAQG4GAdouAnyoFeJIGA7BBDayUhRTAggmmoCSYgYyfpCkZADGYBW4hLJQXMO2U0aROEdypkY5M0NJClPKfJSpwyVK1M0g03AzSCCPAeERSQTBObsGaQ8W8fS-CDOObrUZ4zJkIGMtsI0NoWy6lNAGSy31Nw0FUCYPIkZDHZ12ahA5HBnwBwCkFXm9TxmtPaZ07pvT+mCF8m+D8YzLkTKcebPSGyrYtkUPYZEyj8hpSUEyMQcg7ClCBMUspKLiWBxqcFc52Kbl3IeSQJ5RFXmEv5QFMlzTfk0qZNuMQAExCaDSoKcsONVFaOZDyw5C1aoXKuW03AHS8D4o6YSkgAAjWAgg+DyopajSeEc-koNyTIWCcg6jrEOv+ba5YMhQSSrIbatQDUoqNTVE1LTRUPHuY8550r3l2odU6n5lLVrRQ2TMHIIIlA7m3FoHqfFpB6j2pxbIgYf47K7KJZFAQjWLTjTi81eKenWrTfawQehnWKs9XUeQFRbCIN1NCVsyIRauLsnqVsuV604Nck28qVV-CtpFQ8W5ibxWSpeW8gZ6a+0DuzW9KZnEkGsVassFYobJ18T9FC9k20do3qjQEJ6XQ21motV0rth7BBfvEVm114DvR5pSEaOocgLQaKKHBHkKi7JGgqGaWEH7Hr4G-VundSaJUpsA8B09YHnEQc4idbITUrAN3nIDec5YWzyFSHO5Y2yEUNqhqu8+yMf24stQBwlPH3gkYLGR6lBMWpWTJluZlAaOQWBWJelQ84rCYeE22hN+H92poGcJ0T05xO5s9cYGF+o1jKwOghpKVt5i0OtGIFE6Il2CJXbygITMHgszZhzLmGK6l2Oxb+ztBL3mee8-5XzDxBBnNCgZiKObkmW3ikoawr706EwDdUbYC85h7Tg76zD4WHw+c5tzIVoVNPbrFcmqVgHius0i2VmLFXKDxbNolqZyXhSpbmNA7LllsrSH5HlncwpCsuZMa5Gx5r7GYBHH0cccRFXeqjjRo4mQjh5CWQGgM5YesmVoYxPhHHl1qxm3Y8uDi8QRLLk9fCsTArxMSWeqeUzYR+n2GYcE6h5ZS0OgrFqrVHBZHZH3C7c3JADlwBwAgK2VBMjSRt60sGuT6kkMGWskJWr-TSOD2xkPoew7JKRqlub8hWzsqaR9NHtQRn+rMFYEhbBakhNufHs2ruYEkLgKVH4FtjhCMt177rrC1GkKafUvCMhan+0UJKMwFzKz1O1KCnEOeXdQA4yQAA5CuAAFVAeB2CwAIGVCAEBAgUVdIzI3dxFXzD9JqfLgpFhJS5NqFqqcsiKCUAoDXkO9f+EN8b03pBQqONJ51-SmhzAmGDKtrQep-VFF4iLVBpRTQrD7kT9gcOReNUsDyJPWQVDbkT4aYEjPIzLChboqCOeYd55J2JsnJZmJMkhJCOYshwTtUrwBaMts5irg6s507rm1YABV7sxLiQ8BJ5cBf9GF1H89fztrmG1EoLxh3-yV6gkyR93rLC6g7JNvZM-8APfn4vlp1xbsQ65w7hE79FA7jsttaE1oeRuzSMxqFOYdjUaYxPZWUVmCuDSV0E8AAeVwHbT-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-3ZDslAgUJKEG3RzlnbAAnVDBw+NEify10wCFOpXsAsCGnbBsHUDWBiKjG5MEmQVtnH1TMn17EbO11zxbNzX2DKEyBKE7ItJ7OcOSD4jvR72721ADy5x5z52bNtPXyFHzXnn-GrFkCs0QDTwUOUUzzNFkC3KbN1wNztxNynOSV1FriUHan1HjxUEmIvKDWp2gyOEjC0GJN6L2UnP3NDO3C311EFAjJ3371YQbEYwOJbDbHP0YMv1n04Fv1HlfKmVDGjBjBUB+nBnXDyH+LNA5AfgMj7nQMgOt2wPQjgIIv0nNHKDqCTyZ1S2lKKCCUZyZTP3jC1C9hYIrisNWKgvdSmDkIkBWVUDqH+i-2cLkKgnsDnQmNNBSM0N8KgH8P0LYr4ikADG1CtHkFp1kJ5BMHUEjDXiONUIETaCKPSIrkkWyL8NKI+CMscAx1hCYlanZE5UnUjF5HsHIMswAnaKwpcr8IyICLsQAApyEmA9AABKNikQCQCXTJRiTQFhIoHhRTF9QJOlZU8C2K-S+K-Q-wZK1AVKtK2qlK9KzKsQT6OQUYvKiYydBESnHcawA0muYUFwFwIAA */
     id: 'Modeling',
 
     tsTypes: {} as import('./modelingMachine.typegen').Typegen0,
@@ -170,6 +171,13 @@ export const modelingMachine = createMachine(
             actions: ['AST extrude'],
             internal: true,
           },
+
+          Export: {
+            target: 'idle',
+            internal: true,
+            cond: 'Has exportable geometry',
+            actions: 'Engine export',
+          },
         },
 
         entry: 'reset client scene mouse handlers',
@@ -481,6 +489,7 @@ export const modelingMachine = createMachine(
           'animate after sketch',
           'tear down client sketch',
           'remove sketch grid',
+          'engineToClient cam sync direction',
         ],
 
         entry: ['add axis n grid', 'conditionally equip line tool'],
@@ -514,6 +523,8 @@ export const modelingMachine = createMachine(
             internal: true,
           },
         },
+
+        entry: 'clientToEngine cam sync direction',
       },
 
       'animating to existing sketch': {
@@ -524,7 +535,12 @@ export const modelingMachine = createMachine(
             onDone: 'Sketch',
           },
         ],
+
+        entry: 'clientToEngine cam sync direction',
       },
+
+      'animating to plane (copy)': {},
+      'animating to plane (copy) (copy)': {},
     },
 
     initial: 'idle',
@@ -824,13 +840,13 @@ export const modelingMachine = createMachine(
         sceneInfra.setCallbacks({
           onClick: async (args) => {
             if (!args) return
-            if (args.event.which !== 1) return
-            const { intersection2d } = args
-            if (!intersection2d || !sketchPathToNode) return
+            if (args.mouseEvent.which !== 1) return
+            const { intersectionPoint } = args
+            if (!intersectionPoint?.twoD || !sketchPathToNode) return
             const { modifiedAst } = addStartProfileAt(
               kclManager.ast,
               sketchPathToNode,
-              [intersection2d.x, intersection2d.y]
+              [intersectionPoint.twoD.x, intersectionPoint.twoD.y]
             )
             await kclManager.updateAst(modifiedAst, false)
             sceneEntitiesManager.removeIntersectionPlane()
@@ -845,6 +861,12 @@ export const modelingMachine = createMachine(
         // (note the orbit controls are always active though)
         sceneInfra.resetMouseListeners()
       },
+      'clientToEngine cam sync direction': () => {
+        sceneInfra.camControls.syncDirection = 'clientToEngine'
+      },
+      'engineToClient cam sync direction': () => {
+        sceneInfra.camControls.syncDirection = 'engineToClient'
+      },
     },
     // end actions
   }

src/routes/Home.tsx

@@ -72,7 +72,7 @@ const Home = () => {
     }
   )
 
-  const [state, send] = useMachine(homeMachine, {
+  const [state, send, actor] = useMachine(homeMachine, {
     context: {
       projects: loadedProjects,
       defaultProjectName,
@@ -176,6 +176,7 @@ const Home = () => {
     send,
     state,
     commandBarConfig: homeCommandBarConfig,
+    actor,
   })
 
   useEffect(() => {

src/routes/Onboarding/Export.tsx

@@ -21,7 +21,7 @@ export default function Export() {
         <section className="flex-1">
           <h2 className="text-2xl font-bold">Export</h2>
           <p className="my-4">
-            Try opening the project menu and clicking "Export Model".
+            Try opening the project menu and clicking "Export Part".
           </p>
           <p className="my-4">
             {APP_NAME} uses{' '}

src/wasm-lib/Cargo.lock

@@ -1404,9 +1404,9 @@ dependencies = [
 
 [[package]]
 name = "gif"
-version = "0.12.0"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80792593675e051cf94a4b111980da2ba60d4a83e43e0048c5693baab3977045"
+checksum = "3fb2d69b19215e18bb912fa30f7ce15846e301408695e44e0ef719f1da9e19f2"
 dependencies = [
  "color_quant",
  "weezl",
@@ -1715,9 +1715,9 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.24.8"
+version = "0.24.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "034bbe799d1909622a74d1193aa50147769440040ff36cb2baa947609b0a4e23"
+checksum = "5690139d2f55868e080017335e4b94cb7414274c74f1669c84fb5feba2c9f69d"
 dependencies = [
  "bytemuck",
  "byteorder",
@@ -1877,9 +1877,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.68"
+version = "0.3.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "406cda4b368d531c842222cf9d2600a9a4acce8d29423695379c6868a143a9ee"
+checksum = "29c15563dc2726973df627357ce0c9ddddbea194836909d655df6a75d2cf296d"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -1952,9 +1952,9 @@ dependencies = [
 
 [[package]]
 name = "kittycad"
-version = "0.2.54"
+version = "0.2.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13958174d876353f429ea8230dc92fe86f164819cea2e51bbf22e01a4c2a496e"
+checksum = "4080db4364c103601db486e4a8aa889ea56c011991e4c454373d8050a165d3da"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -1990,11 +1990,12 @@ dependencies = [
 [[package]]
 name = "kittycad-execution-plan"
 version = "0.1.0"
-source = "git+https://github.com/KittyCAD/modeling-api?branch=main#29086e1079adb82b6427639a779dc58eabcd7f78"
+source = "git+https://github.com/KittyCAD/modeling-api?branch=main#03eb9c3763de56d7284c09dba678ddd6120bb523"
 dependencies = [
  "bytes",
  "insta",
  "kittycad",
+ "kittycad-execution-plan-macros",
  "kittycad-execution-plan-traits",
  "kittycad-modeling-cmds",
  "kittycad-modeling-session",
@@ -2008,8 +2009,8 @@ dependencies = [
 
 [[package]]
 name = "kittycad-execution-plan-macros"
-version = "0.1.6"
-source = "git+https://github.com/KittyCAD/modeling-api?branch=main#29086e1079adb82b6427639a779dc58eabcd7f78"
+version = "0.1.8"
+source = "git+https://github.com/KittyCAD/modeling-api?branch=main#03eb9c3763de56d7284c09dba678ddd6120bb523"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2018,8 +2019,8 @@ dependencies = [
 
 [[package]]
 name = "kittycad-execution-plan-traits"
-version = "0.1.11"
-source = "git+https://github.com/KittyCAD/modeling-api?branch=main#29086e1079adb82b6427639a779dc58eabcd7f78"
+version = "0.1.12"
+source = "git+https://github.com/KittyCAD/modeling-api?branch=main#03eb9c3763de56d7284c09dba678ddd6120bb523"
 dependencies = [
  "serde",
  "thiserror",
@@ -2028,8 +2029,8 @@ dependencies = [
 
 [[package]]
 name = "kittycad-modeling-cmds"
-version = "0.1.26"
-source = "git+https://github.com/KittyCAD/modeling-api?branch=main#29086e1079adb82b6427639a779dc58eabcd7f78"
+version = "0.1.28"
+source = "git+https://github.com/KittyCAD/modeling-api?branch=main#03eb9c3763de56d7284c09dba678ddd6120bb523"
 dependencies = [
  "anyhow",
  "chrono",
@@ -2056,8 +2057,8 @@ dependencies = [
 
 [[package]]
 name = "kittycad-modeling-cmds-macros"
-version = "0.1.1"
-source = "git+https://github.com/KittyCAD/modeling-api?branch=main#29086e1079adb82b6427639a779dc58eabcd7f78"
+version = "0.1.2"
+source = "git+https://github.com/KittyCAD/modeling-api?branch=main#03eb9c3763de56d7284c09dba678ddd6120bb523"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2067,7 +2068,7 @@ dependencies = [
 [[package]]
 name = "kittycad-modeling-session"
 version = "0.1.0"
-source = "git+https://github.com/KittyCAD/modeling-api?branch=main#29086e1079adb82b6427639a779dc58eabcd7f78"
+source = "git+https://github.com/KittyCAD/modeling-api?branch=main#03eb9c3763de56d7284c09dba678ddd6120bb523"
 dependencies = [
  "futures",
  "kittycad",
@@ -2258,9 +2259,9 @@ checksum = "e53debba6bda7a793e5f99b8dacf19e626084f525f7829104ba9898f367d85ff"
 
 [[package]]
 name = "mio"
-version = "0.8.9"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dce281c5e46beae905d4de1870d8b1509a9142b62eedf18b443b011ca8343d0"
+checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
  "libc",
  "wasi",
@@ -2426,7 +2427,7 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 [[package]]
 name = "openapitor"
 version = "0.0.9"
-source = "git+https://github.com/KittyCAD/kittycad.rs?branch=main#8db292eaa7be0292512a2cdbef09f2d37af7c79c"
+source = "git+https://github.com/KittyCAD/kittycad.rs?branch=main#6f38abe149c74aa9675e9f0d370aa2f78980dc2d"
 dependencies = [
  "Inflector",
  "anyhow",
@@ -3620,9 +3621,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.113"
+version = "1.0.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69801b70b1c3dac963ecb03a364ba0ceda9cf60c71cfe475e99864759c8b8a79"
+checksum = "c5f09b1bd632ef549eaa9f60a1f8de742bdbc698e6cee2095fc84dde5f549ae0"
 dependencies = [
  "indexmap 2.2.2",
  "itoa",
@@ -4797,9 +4798,9 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.91"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1e124130aee3fb58c5bdd6b639a0509486b0338acaaae0c84a5124b0f588b7f"
+checksum = "4be2531df63900aeb2bca0daaaddec08491ee64ceecbee5076636a3b026795a8"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -4807,9 +4808,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.91"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9e7e1900c352b609c8488ad12639a311045f40a35491fb69ba8c12f758af70b"
+checksum = "614d787b966d3989fa7bb98a654e369c762374fd3213d212cfc0251257e747da"
 dependencies = [
  "bumpalo",
  "log",
@@ -4835,9 +4836,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.91"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b30af9e2d358182b5c7449424f017eba305ed32a7010509ede96cdc4696c46ed"
+checksum = "a1f8823de937b71b9460c0c34e25f3da88250760bec0ebac694b49997550d726"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -4845,9 +4846,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.91"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "642f325be6301eb8107a83d12a8ac6c1e1c54345a7ef1a9261962dfefda09e66"
+checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4858,9 +4859,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.91"
+version = "0.2.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f186bd2dcf04330886ce82d6f33dd75a7bfcf69ecf5763b89fcde53b6ac9838"
+checksum = "af190c94f2773fdb3729c55b007a722abb5384da03bc0986df4c289bf5567e96"
 
 [[package]]
 name = "wasm-lib"
@@ -5137,9 +5138,9 @@ dependencies = [
 
 [[package]]
 name = "weezl"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9193164d4de03a926d909d3bc7c30543cecb35400c02114792c2cae20d5e2dbb"
+checksum = "53a85b86a771b1c87058196170769dd264f66c0782acf1ae6cc51bfd64b39082"
 
 [[package]]
 name = "winapi"

src/wasm-lib/Cargo.toml

@@ -14,14 +14,14 @@ bson = { version = "2.9.0", features = ["uuid-1", "chrono"] }
 gloo-utils = "0.2.0"
 kcl-lib = { path = "kcl" }
 kittycad = { workspace = true }
-serde_json = "1.0.108"
+serde_json = "1.0.114"
 uuid = { version = "1.7.0", features = ["v4", "js", "serde"] }
 wasm-bindgen = "0.2.91"
 wasm-bindgen-futures = "0.4.41"
 
 [dev-dependencies]
 anyhow = "1"
-image = "0.24.8"
+image = "0.24.9"
 kittycad = { workspace = true, default-features = true }
 pretty_assertions = "1.4.0"
 reqwest = { version = "0.11.24", default-features = false }
@@ -31,7 +31,7 @@ uuid = { version = "1.7.0", features = ["v4", "js", "serde"] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 futures = "0.3.30"
-js-sys = "0.3.68"
+js-sys = "0.3.69"
 tower-lsp = { version = "0.20.0", default-features = false, features = ["runtime-agnostic"] }
 wasm-bindgen-futures = { version = "0.4.41", features = ["futures-core-03-stream"] }
 wasm-streams = "0.4.0"
@@ -58,7 +58,7 @@ members = [
 ]
 
 [workspace.dependencies]
-kittycad = { version = "0.2.54", default-features = false, features = ["js", "requests"] }
+kittycad = { version = "0.2.59", default-features = false, features = ["js", "requests"] }
 kittycad-execution-plan = { git = "https://github.com/KittyCAD/modeling-api", branch = "main" }
 kittycad-execution-plan-macros = { git = "https://github.com/KittyCAD/modeling-api", branch = "main" }
 kittycad-execution-plan-traits = { git = "https://github.com/KittyCAD/modeling-api", branch = "main" }

src/wasm-lib/grackle/Cargo.toml

@@ -19,4 +19,4 @@ uuid = "1.7"
 
 [dev-dependencies]
 pretty_assertions = "1"
-serde_json = "1.0.113"
+serde_json = "1.0.114"

src/wasm-lib/grackle/src/binding_scope.rs

@@ -105,6 +105,10 @@ impl BindingScope {
                     "startSketchAt".into(),
                     EpBinding::from(KclFunction::StartSketchAt(native_functions::sketch::StartSketchAt)),
                 ),
+                (
+                    "lineTo".into(),
+                    EpBinding::from(KclFunction::LineTo(native_functions::sketch::LineTo)),
+                ),
             ]),
             parent: None,
         }

src/wasm-lib/grackle/src/error.rs

@@ -45,11 +45,12 @@ pub enum CompileError {
     NoReturnStmt,
     #[error("You used the %, which means \"substitute this argument for the value to the left in this |> pipeline\". But there is no such value, because you're not calling a pipeline.")]
     NotInPipeline,
-    #[error("The function '{fn_name}' expects a parameter of type {expected} but you supplied {actual}")]
+    #[error("The function '{fn_name}' expects a parameter of type {expected} as argument number {arg_number} but you supplied {actual}")]
     ArgWrongType {
         fn_name: &'static str,
         expected: &'static str,
         actual: String,
+        arg_number: usize,
     },
 }
 

src/wasm-lib/grackle/src/lib.rs

@@ -252,6 +252,7 @@ impl Planner {
                 } = match callee {
                     KclFunction::Id(f) => f.call(&mut self.next_addr, args)?,
                     KclFunction::StartSketchAt(f) => f.call(&mut self.next_addr, args)?,
+                    KclFunction::LineTo(f) => f.call(&mut self.next_addr, args)?,
                     KclFunction::Add(f) => f.call(&mut self.next_addr, args)?,
                     KclFunction::UserDefined(f) => {
                         let UserDefinedFunction {
@@ -619,6 +620,7 @@ impl Eq for UserDefinedFunction {}
 enum KclFunction {
     Id(native_functions::Id),
     StartSketchAt(native_functions::sketch::StartSketchAt),
+    LineTo(native_functions::sketch::LineTo),
     Add(native_functions::Add),
     UserDefined(UserDefinedFunction),
 }

src/wasm-lib/grackle/src/native_functions/sketch.rs

@@ -2,6 +2,5 @@
 
 pub mod helpers;
 pub mod stdlib_functions;
-pub mod types;
 
-pub use stdlib_functions::StartSketchAt;
+pub use stdlib_functions::{LineTo, StartSketchAt};

src/wasm-lib/grackle/src/native_functions/sketch/helpers.rs

@@ -1,4 +1,4 @@
-use kittycad_execution_plan::{api_request::ApiRequest, Instruction};
+use kittycad_execution_plan::{api_request::ApiRequest, Destination, Instruction};
 use kittycad_execution_plan_traits::{Address, InMemory};
 use kittycad_modeling_cmds::{id::ModelingCmdId, ModelingCmdEndpoint};
 
@@ -35,23 +35,31 @@ pub fn stack_api_call<const N: usize>(
     }))
 }
 
-pub fn single_binding(b: EpBinding, fn_name: &'static str, expected: &'static str) -> Result<Address, CompileError> {
+pub fn single_binding(
+    b: EpBinding,
+    fn_name: &'static str,
+    expected: &'static str,
+    arg_number: usize,
+) -> Result<Address, CompileError> {
     match b {
         EpBinding::Single(a) => Ok(a),
         EpBinding::Sequence { .. } => Err(CompileError::ArgWrongType {
             fn_name,
             expected,
             actual: "array".to_owned(),
+            arg_number,
         }),
         EpBinding::Map { .. } => Err(CompileError::ArgWrongType {
             fn_name,
             expected,
             actual: "object".to_owned(),
+            arg_number,
         }),
         EpBinding::Function(_) => Err(CompileError::ArgWrongType {
             fn_name,
             expected,
             actual: "function".to_owned(),
+            arg_number,
         }),
     }
 }
@@ -60,6 +68,7 @@ pub fn sequence_binding(
     b: EpBinding,
     fn_name: &'static str,
     expected: &'static str,
+    arg_number: usize,
 ) -> Result<Vec<EpBinding>, CompileError> {
     match b {
         EpBinding::Sequence { elements, .. } => Ok(elements),
@@ -67,16 +76,62 @@ pub fn sequence_binding(
             fn_name,
             expected,
             actual: "single".to_owned(),
+            arg_number,
         }),
         EpBinding::Map { .. } => Err(CompileError::ArgWrongType {
             fn_name,
             expected,
             actual: "object".to_owned(),
+            arg_number,
         }),
         EpBinding::Function(_) => Err(CompileError::ArgWrongType {
             fn_name,
             expected,
             actual: "function".to_owned(),
+            arg_number,
         }),
     }
 }
+
+/// Extract a 2D point from an argument to a Cabble.
+pub fn arg_point2d(
+    arg: EpBinding,
+    fn_name: &'static str,
+    instructions: &mut Vec<Instruction>,
+    next_addr: &mut Address,
+    arg_number: usize,
+) -> Result<Address, CompileError> {
+    let expected = "2D point (array with length 2)";
+    let elements = sequence_binding(arg, "startSketchAt", "an array of length 2", arg_number)?;
+    if elements.len() != 2 {
+        return Err(CompileError::ArgWrongType {
+            fn_name,
+            expected,
+            actual: format!("array of length {}", elements.len()),
+            arg_number: 0,
+        });
+    }
+    // KCL stores points as an array.
+    // KC API stores them as Rust objects laid flat out in memory.
+    let start = next_addr.offset_by(2);
+    let start_x = start;
+    let start_y = start + 1;
+    let start_z = start + 2;
+    instructions.extend([
+        Instruction::Copy {
+            source: single_binding(elements[0].clone(), "startSketchAt", "number", arg_number)?,
+            destination: Destination::Address(start_x),
+            length: 1,
+        },
+        Instruction::Copy {
+            source: single_binding(elements[1].clone(), "startSketchAt", "number", arg_number)?,
+            destination: Destination::Address(start_y),
+            length: 1,
+        },
+        Instruction::SetPrimitive {
+            address: start_z,
+            value: 0.0.into(),
+        },
+    ]);
+    Ok(start)
+}

src/wasm-lib/grackle/src/native_functions/sketch/stdlib_functions.rs

@@ -1,4 +1,8 @@
-use kittycad_execution_plan::{api_request::ApiRequest, Instruction};
+use kittycad_execution_plan::{
+    api_request::ApiRequest,
+    sketch_types::{self, Axes, BasePath, Plane, SketchGroup},
+    Destination, Instruction,
+};
 use kittycad_execution_plan_traits::{Address, InMemory, Value};
 use kittycad_modeling_cmds::{
     shared::{Point3d, Point4d},
@@ -6,12 +10,85 @@ use kittycad_modeling_cmds::{
 };
 use uuid::Uuid;
 
-use super::{
-    helpers::{no_arg_api_call, sequence_binding, single_binding, stack_api_call},
-    types::{Axes, BasePath, Plane, SketchGroup},
-};
+use super::helpers::{arg_point2d, no_arg_api_call, single_binding, stack_api_call};
 use crate::{binding_scope::EpBinding, error::CompileError, native_functions::Callable, EvalPlan};
 
+#[derive(Debug, Clone)]
+#[cfg_attr(test, derive(Eq, PartialEq))]
+pub struct LineTo;
+
+impl Callable for LineTo {
+    fn call(&self, next_addr: &mut Address, args: Vec<EpBinding>) -> Result<EvalPlan, CompileError> {
+        let mut instructions = Vec::new();
+        let fn_name = "lineTo";
+        // Get both required params.
+        let mut args_iter = args.into_iter();
+        let Some(to) = args_iter.next() else {
+            return Err(CompileError::NotEnoughArgs {
+                fn_name: fn_name.into(),
+                required: 2,
+                actual: 0,
+            });
+        };
+        let Some(sketch_group) = args_iter.next() else {
+            return Err(CompileError::NotEnoughArgs {
+                fn_name: fn_name.into(),
+                required: 2,
+                actual: 1,
+            });
+        };
+        // Check the type of both required params.
+        let to = arg_point2d(to, fn_name, &mut instructions, next_addr, 0)?;
+        let sg = single_binding(sketch_group, fn_name, "sketch group", 1)?;
+        let id = Uuid::new_v4();
+        let start_of_line = next_addr.offset(1);
+        let length_of_3d_point = Point3d::<f64>::default().into_parts().len();
+        instructions.extend([
+            // Push the `to` 2D point onto the stack.
+            Instruction::Copy {
+                source: to,
+                length: 2,
+                destination: Destination::StackPush,
+            },
+            // Make it a 3D point.
+            Instruction::StackExtend { data: vec![0.0.into()] },
+            // Append the new path segment to memory.
+            // First comes its tag.
+            Instruction::SetPrimitive {
+                address: start_of_line,
+                value: "Line".to_owned().into(),
+            },
+            // Then its end
+            Instruction::StackPop {
+                destination: Some(start_of_line + 1),
+            },
+            // Then its `relative` field.
+            Instruction::SetPrimitive {
+                address: start_of_line + 1 + length_of_3d_point,
+                value: false.into(),
+            },
+            // Send the ExtendPath request
+            Instruction::ApiRequest(ApiRequest {
+                endpoint: ModelingCmdEndpoint::ExtendPath,
+                store_response: None,
+                arguments: vec![
+                    // Path ID
+                    InMemory::Address(sg + SketchGroup::path_id_offset()),
+                    // Segment
+                    InMemory::Address(start_of_line),
+                ],
+                cmd_id: id.into(),
+            }),
+        ]);
+
+        // TODO: Create a new SketchGroup from the old one + add the new path, then store it.
+        Ok(EvalPlan {
+            instructions,
+            binding: EpBinding::Single(Address::ZERO + 9999),
+        })
+    }
+}
+
 #[derive(Debug, Clone)]
 #[cfg_attr(test, derive(Eq, PartialEq))]
 pub struct StartSketchAt;
@@ -28,42 +105,10 @@ impl Callable for StartSketchAt {
                 actual: 0,
             });
         };
-        let start_point = {
-            let expected = "2D point (array with length 2)";
-            let fn_name = "startSketchAt";
-            let elements = sequence_binding(start, "startSketchAt", "an array of length 2")?;
-            if elements.len() != 2 {
-                return Err(CompileError::ArgWrongType {
-                    fn_name,
-                    expected,
-                    actual: format!("array of length {}", elements.len()),
-                });
-            }
-            // KCL stores points as an array.
-            // KC API stores them as Rust objects laid flat out in memory.
-            let start = next_addr.offset_by(2);
-            let start_x = start;
-            let start_y = start + 1;
-            let start_z = start + 2;
-            instructions.extend([
-                Instruction::Copy {
-                    source: single_binding(elements[0].clone(), "startSketchAt (first parameter, elem 0)", "number")?,
-                    destination: start_x,
-                },
-                Instruction::Copy {
-                    source: single_binding(elements[1].clone(), "startSketchAt (first parameter, elem 1)", "number")?,
-                    destination: start_y,
-                },
-                Instruction::SetPrimitive {
-                    address: start_z,
-                    value: 0.0.into(),
-                },
-            ]);
-            start
-        };
+        let start_point = arg_point2d(start, "startSketchAt", &mut instructions, next_addr, 0)?;
         let tag = match args_iter.next() {
             None => None,
-            Some(b) => Some(single_binding(b, "startSketchAt", "a single string")?),
+            Some(b) => Some(single_binding(b, "startSketchAt", "a single string", 1)?),
         };
 
         // Define some constants:
@@ -140,9 +185,9 @@ impl Callable for StartSketchAt {
                 name: Default::default(),
             },
             path_rest: Vec::new(),
-            on: super::types::SketchSurface::Plane(Plane {
+            on: sketch_types::SketchSurface::Plane(Plane {
                 id: plane_id,
-                value: super::types::PlaneType::XY,
+                value: sketch_types::PlaneType::XY,
                 origin,
                 axes,
             }),

src/wasm-lib/grackle/src/native_functions/sketch/types.rs

@@ -1,133 +0,0 @@
-use kittycad_execution_plan::Instruction;
-use kittycad_execution_plan_macros::ExecutionPlanValue;
-use kittycad_execution_plan_traits::{Address, Value};
-use kittycad_modeling_cmds::shared::{Point2d, Point3d, Point4d};
-use uuid::Uuid;
-
-/// A sketch group is a collection of paths.
-#[derive(Clone, ExecutionPlanValue)]
-pub struct SketchGroup {
-    /// The id of the sketch group.
-    pub id: Uuid,
-    /// What the sketch is on (can be a plane or a face).
-    pub on: SketchSurface,
-    /// The position of the sketch group.
-    pub position: Point3d,
-    /// The rotation of the sketch group base plane.
-    pub rotation: Point4d,
-    /// The X, Y and Z axes of this sketch's base plane, in 3D space.
-    pub axes: Axes,
-    /// The plane id or face id of the sketch group.
-    pub entity_id: Option<Uuid>,
-    /// The base path.
-    pub path_first: BasePath,
-    /// Paths after the first path, if any.
-    pub path_rest: Vec<Path>,
-}
-
-impl SketchGroup {
-    pub fn set_base_path(&self, sketch_group: Address, start_point: Address, tag: Option<Address>) -> Vec<Instruction> {
-        let base_path_addr = sketch_group
-            + self.id.into_parts().len()
-            + self.on.into_parts().len()
-            + self.position.into_parts().len()
-            + self.rotation.into_parts().len()
-            + self.axes.into_parts().len()
-            + self.entity_id.into_parts().len()
-            + self.entity_id.into_parts().len();
-        let mut out = vec![
-            // Copy over the `from` field.
-            Instruction::Copy {
-                source: start_point,
-                destination: base_path_addr,
-            },
-            // Copy over the `to` field.
-            Instruction::Copy {
-                source: start_point,
-                destination: base_path_addr + self.path_first.from.into_parts().len(),
-            },
-        ];
-        if let Some(tag) = tag {
-            // Copy over the `name` field.
-            out.push(Instruction::Copy {
-                source: tag,
-                destination: base_path_addr
-                    + self.path_first.from.into_parts().len()
-                    + self.path_first.to.into_parts().len(),
-            });
-        }
-        out
-    }
-}
-
-/// The X, Y and Z axes.
-#[derive(Clone, Copy, ExecutionPlanValue)]
-pub struct Axes {
-    pub x: Point3d,
-    pub y: Point3d,
-    pub z: Point3d,
-}
-
-#[derive(Clone, ExecutionPlanValue)]
-pub struct BasePath {
-    pub from: Point2d<f64>,
-    pub to: Point2d<f64>,
-    pub name: String,
-}
-
-/// A path.
-#[derive(Clone, ExecutionPlanValue)]
-pub enum Path {
-    /// A path that goes to a point.
-    ToPoint { base: BasePath },
-    /// A arc that is tangential to the last path segment that goes to a point
-    TangentialArcTo {
-        base: BasePath,
-        /// the arc's center
-        center: Point2d,
-        /// arc's direction
-        ccw: bool,
-    },
-    /// A path that is horizontal.
-    Horizontal {
-        base: BasePath,
-        /// The x coordinate.
-        x: f64,
-    },
-    /// An angled line to.
-    AngledLineTo {
-        base: BasePath,
-        /// The x coordinate.
-        x: Option<f64>,
-        /// The y coordinate.
-        y: Option<f64>,
-    },
-    /// A base path.
-    Base { base: BasePath },
-}
-
-#[derive(Clone, Copy, ExecutionPlanValue)]
-pub enum SketchSurface {
-    Plane(Plane),
-}
-
-/// A plane.
-#[derive(Clone, Copy, ExecutionPlanValue)]
-pub struct Plane {
-    /// The id of the plane.
-    pub id: Uuid,
-    // The code for the plane either a string or custom.
-    pub value: PlaneType,
-    /// Origin of the plane.
-    pub origin: Point3d,
-    pub axes: Axes,
-}
-
-/// Type for a plane.
-#[derive(Clone, Copy, ExecutionPlanValue)]
-pub enum PlaneType {
-    XY,
-    XZ,
-    YZ,
-    Custom,
-}

src/wasm-lib/grackle/src/tests.rs

@@ -1048,15 +1048,30 @@ fn store_object_with_array_property() {
 #[tokio::test]
 async fn stdlib_cube_partial() {
     let program = r#"
-    let cube = startSketchAt([22.0, 33.0])
+    let cube = startSketchAt([0.0, 0.0])
+        |> lineTo([4.0, 0.0], %)
     "#;
-    let (plan, _scope) = must_plan(program);
-    std::fs::write("stdlib_cube_partial.json", serde_json::to_string_pretty(&plan).unwrap()).unwrap();
+    let (_plan, _scope) = must_plan(program);
     let ast = kcl_lib::parser::Parser::new(kcl_lib::token::lexer(program))
         .ast()
         .unwrap();
-    let mem = crate::execute(ast, Some(test_client().await)).await.unwrap();
-    dbg!(mem);
+    let client = test_client().await;
+    let _mem = crate::execute(ast, Some(client)).await.unwrap();
+    // use kittycad_modeling_cmds::{each_cmd, ok_response::OkModelingCmdResponse, ImageFormat, ModelingCmd};
+    // let out = client
+    //     .run_command(
+    //         uuid::Uuid::new_v4().into(),
+    //         each_cmd::TakeSnapshot {
+    //             format: ImageFormat::Png,
+    //         },
+    //     )
+    //     .await
+    //     .unwrap();
+    // let out = match out {
+    //     OkModelingCmdResponse::TakeSnapshot(b) => b,
+    //     other => panic!("wrong output: {other:?}"),
+    // };
+    // let out: Vec<u8> = out.contents.into();
 }
 
 async fn test_client() -> Session {

src/wasm-lib/kcl/Cargo.toml

@@ -30,14 +30,14 @@ reqwest = { version = "0.11.24", default-features = false, features = ["stream",
 ropey = "1.6.1"
 schemars = { version = "0.8.16", features = ["impl_json_schema", "url", "uuid1"] }
 serde = { version = "1.0.193", features = ["derive"] }
-serde_json = "1.0.108"
+serde_json = "1.0.114"
 thiserror = "1.0.57"
 ts-rs = { version = "7.1.1", features = ["uuid-impl"] }
 uuid = { version = "1.7.0", features = ["v4", "js", "serde"] }
 winnow = "0.5.40"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-js-sys = { version = "0.3.68" }
+js-sys = { version = "0.3.69" }
 tower-lsp = { version = "0.20.0", default-features = false, features = ["runtime-agnostic"] }
 wasm-bindgen = "0.2.91"
 wasm-bindgen-futures = "0.4.41"

src/wasm-lib/kcl/src/ast/types.rs

@@ -1091,7 +1091,7 @@ impl CallExpression {
                             function_expression.params.len(),
                             fn_args.len(),
                         ),
-                        source_ranges: vec![(function_expression).into()],
+                        source_ranges: vec![self.into()],
                     }));
                 }
 
@@ -3091,8 +3091,7 @@ let baz = {a: 1, b: "thing"}
 fn ghi = (x) => {
   return x
 }
-
-show(part001)"#;
+"#;
         let tokens = crate::token::lexer(code);
         let parser = crate::parser::Parser::new(tokens);
         let program = parser.ast().unwrap();
@@ -3372,9 +3371,7 @@ const mySk1 = startSketchOn('XY')
        offset: -1.35,
        intersectTag: 'seg01'
      }, %)
-  |> line([-0.42, -1.72], %)
-
-show(part001)"#;
+  |> line([-0.42, -1.72], %)"#;
         let tokens = crate::token::lexer(some_program_string);
         let parser = crate::parser::Parser::new(tokens);
         let program = parser.ast().unwrap();
@@ -3523,8 +3520,7 @@ let baz = {a: 1, part001: "thing"}
 fn ghi = (part001) => {
   return part001
 }
-
-show(part001)"#;
+"#;
         let tokens = crate::token::lexer(some_program_string);
         let parser = crate::parser::Parser::new(tokens);
         let mut program = parser.ast().unwrap();
@@ -3546,8 +3542,6 @@ let baz = { a: 1, part001: "thing" }
 fn ghi = (part001) => {
   return part001
 }
-
-show(mySuperCoolPart)
 "#
         );
     }
@@ -3648,6 +3642,21 @@ const cylinder = startSketchOn('-XZ')
         assert!(value.is_some());
     }
 
+    #[test]
+    fn test_ast_get_non_code_node_inline_comment() {
+        let some_program_string = r#"const part001 = startSketchOn('XY')
+  |> startProfileAt([0,0], %)
+  |> xLine(5, %) // lin
+"#;
+        let tokens = crate::token::lexer(some_program_string);
+        let parser = crate::parser::Parser::new(tokens);
+        let program = parser.ast().unwrap();
+
+        let value = program.get_non_code_meta_for_position(86);
+
+        assert!(value.is_some());
+    }
+
     #[test]
     fn test_recast_negative_var() {
         let some_program_string = r#"const w = 20
@@ -3661,8 +3670,7 @@ const firstExtrude = startSketchOn('XY')
   |> line([0, -l], %)
   |> close(%)
   |> extrude(h, %)
-
-show(firstExtrude)"#;
+"#;
         let tokens = crate::token::lexer(some_program_string);
         let parser = crate::parser::Parser::new(tokens);
         let program = parser.ast().unwrap();
@@ -3681,8 +3689,6 @@ const firstExtrude = startSketchOn('XY')
   |> line([0, -l], %)
   |> close(%)
   |> extrude(h, %)
-
-show(firstExtrude)
 "#
         );
     }
@@ -3703,8 +3709,7 @@ const firstExtrude = startSketchOn('XY')
   |> line([0, -l], %)
   |> close(%)
   |> extrude(h, %)
-
-show(firstExtrude)"#;
+"#;
         let tokens = crate::token::lexer(some_program_string);
         let parser = crate::parser::Parser::new(tokens);
         let program = parser.ast().unwrap();
@@ -3726,8 +3731,6 @@ const firstExtrude = startSketchOn('XY')
   |> line([0, -l], %)
   |> close(%)
   |> extrude(h, %)
-
-show(firstExtrude)
 "#
         );
     }

src/wasm-lib/kcl/src/docs.rs

@@ -566,17 +566,4 @@ mod tests {
             }
         );
     }
-
-    #[test]
-    fn test_deserialize_function_show() {
-        let some_function_string = r#"{"type":"StdLib","func":{"name":"show","summary":"","description":"","tags":[],"returnValue":{"type":"","required":false,"name":"","schema":{}},"args":[],"unpublished":false,"deprecated":false}}"#;
-        let some_function: crate::ast::types::Function = serde_json::from_str(some_function_string).unwrap();
-
-        assert_eq!(
-            some_function,
-            crate::ast::types::Function::StdLib {
-                func: Box::new(crate::std::Show),
-            }
-        );
-    }
 }

src/wasm-lib/kcl/src/engine/conn.rs

@@ -1,7 +1,7 @@
 //! Functions for setting up our WebSocket and WebRTC connections for communications with the
 //! engine.
 
-use std::sync::Arc;
+use std::sync::{Arc, Mutex};
 
 use anyhow::{anyhow, Result};
 use dashmap::DashMap;
@@ -15,6 +15,12 @@ use crate::{
     errors::{KclError, KclErrorDetails},
 };
 
+#[derive(Debug, PartialEq)]
+enum SocketHealth {
+    Active,
+    Inactive,
+}
+
 type WebSocketTcpWrite = futures::stream::SplitSink<tokio_tungstenite::WebSocketStream<reqwest::Upgraded>, WsMsg>;
 #[derive(Debug, Clone)]
 #[allow(dead_code)] // for the TcpReadHandle
@@ -22,6 +28,7 @@ pub struct EngineConnection {
     engine_req_tx: mpsc::Sender<ToEngineReq>,
     responses: Arc<DashMap<uuid::Uuid, WebSocketResponse>>,
     tcp_read_handle: Arc<TcpReadHandle>,
+    socket_health: Arc<Mutex<SocketHealth>>,
 }
 
 pub struct TcpRead {
@@ -119,7 +126,9 @@ impl EngineConnection {
 
         let responses: Arc<DashMap<uuid::Uuid, WebSocketResponse>> = Arc::new(DashMap::new());
         let responses_clone = responses.clone();
+        let socket_health = Arc::new(Mutex::new(SocketHealth::Active));
 
+        let socket_health_tcp_read = socket_health.clone();
         let tcp_read_handle = tokio::spawn(async move {
             // Get Websocket messages from API server
             loop {
@@ -131,6 +140,7 @@ impl EngineConnection {
                     }
                     Err(e) => {
                         println!("got ws error: {:?}", e);
+                        *socket_health_tcp_read.lock().unwrap() = SocketHealth::Inactive;
                         return Err(e);
                     }
                 }
@@ -143,6 +153,7 @@ impl EngineConnection {
                 handle: Arc::new(tcp_read_handle),
             }),
             responses,
+            socket_health,
         })
     }
 }
@@ -192,6 +203,14 @@ impl EngineManager for EngineConnection {
         // Wait for the response.
         let current_time = std::time::Instant::now();
         while current_time.elapsed().as_secs() < 60 {
+            if let Ok(guard) = self.socket_health.lock() {
+                if *guard == SocketHealth::Inactive {
+                    return Err(KclError::Engine(KclErrorDetails {
+                        message: "Modeling command failed: websocket closed early".to_string(),
+                        source_ranges: vec![source_range],
+                    }));
+                }
+            }
             // We pop off the responses to cleanup our mappings.
             if let Some((_, resp)) = self.responses.remove(&id) {
                 return if let Some(data) = &resp.resp {

src/wasm-lib/kcl/src/executor.rs

@@ -101,20 +101,14 @@ impl Default for ProgramMemory {
 #[ts(export)]
 #[serde(rename_all = "camelCase", untagged)]
 pub enum ProgramReturn {
-    Arguments(Vec<Value>),
+    Arguments,
     Value(MemoryItem),
 }
 
 impl From<ProgramReturn> for Vec<SourceRange> {
     fn from(item: ProgramReturn) -> Self {
         match item {
-            ProgramReturn::Arguments(args) => args
-                .iter()
-                .map(|arg| {
-                    let r: SourceRange = arg.into();
-                    r
-                })
-                .collect(),
+            ProgramReturn::Arguments => Default::default(),
             ProgramReturn::Value(v) => v.into(),
         }
     }
@@ -124,8 +118,8 @@ impl ProgramReturn {
     pub fn get_value(&self) -> Result<MemoryItem, KclError> {
         match self {
             ProgramReturn::Value(v) => Ok(v.clone()),
-            ProgramReturn::Arguments(args) => Err(KclError::Semantic(KclErrorDetails {
-                message: format!("Cannot get value from arguments: {:?}", args),
+            ProgramReturn::Arguments => Err(KclError::Semantic(KclErrorDetails {
+                message: "Cannot get value from arguments".to_owned(),
                 source_ranges: self.clone().into(),
             })),
         }
@@ -558,6 +552,8 @@ pub struct ExtrudeGroup {
     pub id: uuid::Uuid,
     /// The extrude surfaces.
     pub value: Vec<ExtrudeSurface>,
+    /// The sketch group paths.
+    pub sketch_group_values: Vec<Path>,
     /// The height of the extrude group.
     pub height: f64,
     /// The position of the extrude group.
@@ -1017,7 +1013,7 @@ impl ExecutorContext {
 pub async fn execute(
     program: crate::ast::types::Program,
     memory: &mut ProgramMemory,
-    options: BodyType,
+    _options: BodyType,
     ctx: &ExecutorContext,
 ) -> Result<ProgramMemory, KclError> {
     // Before we even start executing the program, set the units.
@@ -1073,24 +1069,11 @@ pub async fn execute(
                             _ => (),
                         }
                     }
-                    let _show_fn = Box::new(crate::std::Show);
                     match ctx.stdlib.get_either(&call_expr.callee.name) {
                         FunctionKind::Core(func) => {
-                            use crate::docs::StdLibFn;
-                            if func.name() == _show_fn.name() {
-                                if options != BodyType::Root {
-                                    return Err(KclError::Semantic(KclErrorDetails {
-                                        message: "Cannot call show outside of a root".to_string(),
-                                        source_ranges: vec![call_expr.into()],
-                                    }));
-                                }
-
-                                memory.return_ = Some(ProgramReturn::Arguments(call_expr.arguments.clone()));
-                            } else {
-                                let args = crate::std::Args::new(args, call_expr.into(), ctx.clone());
-                                let result = func.std_lib_fn()(args).await?;
-                                memory.return_ = Some(ProgramReturn::Value(result));
-                            }
+                            let args = crate::std::Args::new(args, call_expr.into(), ctx.clone());
+                            let result = func.std_lib_fn()(args).await?;
+                            memory.return_ = Some(ProgramReturn::Value(result));
                         }
                         FunctionKind::Std(func) => {
                             let mut newmem = memory.clone();
@@ -1352,8 +1335,7 @@ const newVar = myVar + 1"#;
   offset: {},
   tag: "yo2"
 }}, %)
-const intersect = segEndX('yo2', part001)
-show(part001)"#,
+const intersect = segEndX('yo2', part001)"#,
                 offset
             )
         };
@@ -1399,8 +1381,7 @@ const part001 = startSketchOn('XY')
 |> angledLine([ghi(2), 3.04], %)
 |> angledLine([jkl(yo) + 2, 3.05], %)
 |> close(%)
-const yo2 = hmm([identifierGuy + 5])
-show(part001)"#;
+const yo2 = hmm([identifierGuy + 5])"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1415,8 +1396,7 @@ const part001 = startSketchOn('XY')
   min(segLen('seg01', %), myVar),
   -legLen(segLen('seg01', %), myVar)
 ], %)
-
-show(part001)"#;
+"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1431,8 +1411,7 @@ const part001 = startSketchOn('XY')
   min(segLen('seg01', %), myVar),
   legLen(segLen('seg01', %), myVar)
 ], %)
-
-show(part001)"#;
+"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1454,8 +1433,7 @@ const part001 = startSketchOn('XY')
   |> xLine(3.84, %) // selection-range-7ish-before-this
 
 const variableBelowShouldNotBeIncluded = 3
-
-show(part001)"#;
+"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1476,9 +1454,7 @@ const firstExtrude = startSketchOn('XY')
   |> line([w, 0], %)
   |> line([0, thing()], %)
   |> close(%)
-  |> extrude(h, %)
-
-show(firstExtrude)"#;
+  |> extrude(h, %)"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1499,9 +1475,7 @@ const firstExtrude = startSketchOn('XY')
   |> line([w, 0], %)
   |> line([0, thing(8)], %)
   |> close(%)
-  |> extrude(h, %)
-
-show(firstExtrude)"#;
+  |> extrude(h, %)"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1522,9 +1496,7 @@ const firstExtrude = startSketchOn('XY')
   |> line([w, 0], %)
   |> line(thing(8), %)
   |> close(%)
-  |> extrude(h, %)
-
-show(firstExtrude)"#;
+  |> extrude(h, %)"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1549,9 +1521,7 @@ const firstExtrude = startSketchOn('XY')
   |> line([w, 0], %)
   |> line([0, thing(8)], %)
   |> close(%)
-  |> extrude(h, %)
-
-show(firstExtrude)"#;
+  |> extrude(h, %)"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1570,9 +1540,7 @@ show(firstExtrude)"#;
   return myBox
 }
 
-const fnBox = box(3, 6, 10)
-
-show(fnBox)"#;
+const fnBox = box(3, 6, 10)"#;
 
         parse_execute(ast).await.unwrap();
     }
@@ -1592,8 +1560,6 @@ show(fnBox)"#;
 }
 
 const thisBox = box({start: [0,0], l: 6, w: 10, h: 3})
-
-show(thisBox)
 "#;
         parse_execute(ast).await.unwrap();
     }
@@ -1613,8 +1579,6 @@ show(thisBox)
 }
 
 const thisBox = box({start: [0,0], l: 6, w: 10, h: 3})
-
-show(thisBox)
 "#;
         parse_execute(ast).await.unwrap();
     }
@@ -1634,8 +1598,6 @@ show(thisBox)
 }
 
 const thisBox = box({start: [0,0], l: 6, w: 10, h: 3})
-
-show(thisBox)
 "#;
         parse_execute(ast).await.unwrap();
     }
@@ -1657,7 +1619,6 @@ let myBox = startSketchOn('XY')
 
 for var in [{start: [0,0], l: 6, w: 10, h: 3}, {start: [-10,-10], l: 3, w: 5, h: 1.5}] {
   const thisBox = box(var)
-  show(thisBox)
 }"#;
 
         parse_execute(ast).await.unwrap();
@@ -1681,7 +1642,6 @@ for var in [{start: [0,0], l: 6, w: 10, h: 3}, {start: [-10,-10], l: 3, w: 5, h:
 
 for var in [[3, 6, 10, [0,0]], [1.5, 3, 5, [-10,-10]]] {
   const thisBox = box(var[0], var[1], var[2], var[3])
-  show(thisBox)
 }"#;
 
         parse_execute(ast).await.unwrap();
@@ -1703,7 +1663,6 @@ for var in [[3, 6, 10, [0,0]], [1.5, 3, 5, [-10,-10]]] {
 
 const thisBox = box([[0,0], 6, 10, 3])
 
-show(thisBox)
 "#;
         parse_execute(ast).await.unwrap();
     }
@@ -1820,7 +1779,6 @@ const bracket = startSketchOn('XY')
   |> line([0, -1 * leg1 + thickness], %)
   |> close(%)
   |> extrude(width, %)
-show(bracket)
 "#;
         parse_execute(ast).await.unwrap();
     }
@@ -1845,7 +1803,6 @@ const bracket = startSketchOn('XY')
   |> line([0, -1 * leg1 + thickness], %)
   |> close(%)
   |> extrude(width, %)
-show(bracket)
 "#;
         parse_execute(ast).await.unwrap();
     }

src/wasm-lib/kcl/src/lsp/kcl/mod.rs

@@ -17,14 +17,13 @@ use tower_lsp::{
         DocumentSymbol, DocumentSymbolParams, DocumentSymbolResponse, Documentation, FullDocumentDiagnosticReport,
         Hover, HoverContents, HoverParams, HoverProviderCapability, InitializeParams, InitializeResult,
         InitializedParams, InlayHint, InlayHintParams, InsertTextFormat, MarkupContent, MarkupKind, MessageType, OneOf,
-        ParameterInformation, ParameterLabel, Position, RelatedFullDocumentDiagnosticReport, RenameFilesParams,
-        RenameParams, SemanticToken, SemanticTokenType, SemanticTokens, SemanticTokensFullOptions,
-        SemanticTokensLegend, SemanticTokensOptions, SemanticTokensParams, SemanticTokensRegistrationOptions,
-        SemanticTokensResult, SemanticTokensServerCapabilities, ServerCapabilities, SignatureHelp,
-        SignatureHelpOptions, SignatureHelpParams, SignatureInformation, StaticRegistrationOptions, TextDocumentItem,
-        TextDocumentRegistrationOptions, TextDocumentSyncCapability, TextDocumentSyncKind, TextDocumentSyncOptions,
-        TextEdit, WorkDoneProgressOptions, WorkspaceEdit, WorkspaceFoldersServerCapabilities,
-        WorkspaceServerCapabilities,
+        Position, RelatedFullDocumentDiagnosticReport, RenameFilesParams, RenameParams, SemanticToken,
+        SemanticTokenType, SemanticTokens, SemanticTokensFullOptions, SemanticTokensLegend, SemanticTokensOptions,
+        SemanticTokensParams, SemanticTokensRegistrationOptions, SemanticTokensResult,
+        SemanticTokensServerCapabilities, ServerCapabilities, SignatureHelp, SignatureHelpOptions, SignatureHelpParams,
+        StaticRegistrationOptions, TextDocumentItem, TextDocumentRegistrationOptions, TextDocumentSyncCapability,
+        TextDocumentSyncKind, TextDocumentSyncOptions, TextEdit, WorkDoneProgressOptions, WorkspaceEdit,
+        WorkspaceFoldersServerCapabilities, WorkspaceServerCapabilities,
     },
     Client, LanguageServer,
 };
@@ -430,20 +429,6 @@ impl LanguageServer for Backend {
     }
 
     async fn completion(&self, params: CompletionParams) -> RpcResult<Option<CompletionResponse>> {
-        // We want to get the position we are in.
-        // Because if we are in a comment, we don't want to show completions.
-        let filename = params.text_document_position.text_document.uri.to_string();
-        if let Some(current_code) = self.current_code_map.get(&filename) {
-            let pos = position_to_char_index(params.text_document_position.position, &current_code);
-            // Let's iterate over the AST and find the node that contains the cursor.
-            if let Some(ast) = self.ast_map.get(&filename) {
-                if ast.get_non_code_meta_for_position(pos).is_some() {
-                    // We are in a comment, don't show completions.
-                    return Ok(None);
-                }
-            }
-        }
-
         let mut completions = vec![CompletionItem {
             label: PIPE_OPERATOR.to_string(),
             label_details: None,
@@ -650,8 +635,9 @@ impl LanguageServer for Backend {
 /// Get completions from our stdlib.
 pub fn get_completions_from_stdlib(stdlib: &crate::std::StdLib) -> Result<HashMap<String, CompletionItem>> {
     let mut completions = HashMap::new();
+    let combined = stdlib.combined();
 
-    for internal_fn in stdlib.fns.values() {
+    for internal_fn in combined.values() {
         completions.insert(internal_fn.name(), internal_fn.to_completion_item());
     }
 
@@ -666,32 +652,12 @@ pub fn get_completions_from_stdlib(stdlib: &crate::std::StdLib) -> Result<HashMa
 /// Get signatures from our stdlib.
 pub fn get_signatures_from_stdlib(stdlib: &crate::std::StdLib) -> Result<HashMap<String, SignatureHelp>> {
     let mut signatures = HashMap::new();
+    let combined = stdlib.combined();
 
-    for internal_fn in stdlib.fns.values() {
+    for internal_fn in combined.values() {
         signatures.insert(internal_fn.name(), internal_fn.to_signature_help());
     }
 
-    let show = SignatureHelp {
-        signatures: vec![SignatureInformation {
-            label: "show".to_string(),
-            documentation: Some(Documentation::MarkupContent(MarkupContent {
-                kind: MarkupKind::PlainText,
-                value: "Show a model.".to_string(),
-            })),
-            parameters: Some(vec![ParameterInformation {
-                label: ParameterLabel::Simple("sg: SketchGroup".to_string()),
-                documentation: Some(Documentation::MarkupContent(MarkupContent {
-                    kind: MarkupKind::PlainText,
-                    value: "A sketch group.".to_string(),
-                })),
-            }]),
-            active_parameter: None,
-        }],
-        active_signature: Some(0),
-        active_parameter: None,
-    };
-    signatures.insert("show".to_string(), show);
-
     Ok(signatures)
 }
 

src/wasm-lib/kcl/src/parser/parser_impl.rs

@@ -1909,7 +1909,6 @@ const mySk1 = startSketchAt([0, 0])"#;
         let test_program = r#"startSketchAt([0, 0])
         |> lineTo([0, -0], %) // MoveRelative
 
-        show(svg)
         "#;
         let tokens = crate::token::lexer(test_program);
         let mut slice = &tokens[..];
@@ -2239,8 +2238,6 @@ const firstExtrude = startSketchOn('XY')
   |> close(%)
   |> extrude(2, %)
 
-show(firstExtrude)
-
 const secondExtrude = startSketchOn('XY')
   |> startProfileAt([0,0], %)
   |",
@@ -2724,9 +2721,7 @@ const b2 = cube([3,3], 4)
 
 const pt1 = b1[0]
 const pt2 = b2[0]
-
-show(b1)
-show(b2)"#;
+"#;
         let tokens = crate::token::lexer(some_program_string);
         let parser = crate::parser::Parser::new(tokens);
         parser.ast().unwrap();
@@ -2755,7 +2750,7 @@ let other_thing = 2 * cos(3)"#;
   return myBox
 }
 let myBox = box([0,0], -3, -16, -10)
-show(myBox)"#;
+"#;
         let tokens = crate::token::lexer(some_program_string);
         let parser = crate::parser::Parser::new(tokens);
         parser.ast().unwrap();

src/wasm-lib/kcl/src/parser/snapshots/kcl_lib__parser__parser_impl__snapshot_tests__au.snap

@@ -4,18 +4,18 @@ expression: actual
 ---
 {
   "start": 0,
-  "end": 90,
+  "end": 59,
   "body": [
     {
       "type": "VariableDeclaration",
       "type": "VariableDeclaration",
       "start": 0,
-      "end": 74,
+      "end": 58,
       "declarations": [
         {
           "type": "VariableDeclarator",
           "start": 6,
-          "end": 74,
+          "end": 58,
           "id": {
             "type": "Identifier",
             "start": 6,
@@ -26,47 +26,47 @@ expression: actual
             "type": "PipeExpression",
             "type": "PipeExpression",
             "start": 17,
-            "end": 74,
+            "end": 58,
             "body": [
               {
                 "type": "CallExpression",
                 "type": "CallExpression",
                 "start": 17,
-                "end": 56,
+                "end": 40,
                 "callee": {
                   "type": "Identifier",
                   "start": 17,
-                  "end": 39,
-                  "name": "unstable_stdlib_circle"
+                  "end": 23,
+                  "name": "circle"
                 },
                 "arguments": [
                   {
                     "type": "Literal",
                     "type": "Literal",
-                    "start": 40,
-                    "end": 44,
+                    "start": 24,
+                    "end": 28,
                     "value": "XY",
                     "raw": "'XY'"
                   },
                   {
                     "type": "ArrayExpression",
                     "type": "ArrayExpression",
-                    "start": 46,
-                    "end": 51,
+                    "start": 30,
+                    "end": 35,
                     "elements": [
                       {
                         "type": "Literal",
                         "type": "Literal",
-                        "start": 47,
-                        "end": 48,
+                        "start": 31,
+                        "end": 32,
                         "value": 0,
                         "raw": "0"
                       },
                       {
                         "type": "Literal",
                         "type": "Literal",
-                        "start": 49,
-                        "end": 50,
+                        "start": 33,
+                        "end": 34,
                         "value": 0,
                         "raw": "0"
                       }
@@ -75,8 +75,8 @@ expression: actual
                   {
                     "type": "Literal",
                     "type": "Literal",
-                    "start": 53,
-                    "end": 55,
+                    "start": 37,
+                    "end": 39,
                     "value": 22,
                     "raw": "22"
                   }
@@ -86,28 +86,28 @@ expression: actual
               {
                 "type": "CallExpression",
                 "type": "CallExpression",
-                "start": 60,
-                "end": 74,
+                "start": 44,
+                "end": 58,
                 "callee": {
                   "type": "Identifier",
-                  "start": 60,
-                  "end": 67,
+                  "start": 44,
+                  "end": 51,
                   "name": "extrude"
                 },
                 "arguments": [
                   {
                     "type": "Literal",
                     "type": "Literal",
-                    "start": 68,
-                    "end": 70,
+                    "start": 52,
+                    "end": 54,
                     "value": 14,
                     "raw": "14"
                   },
                   {
                     "type": "PipeSubstitution",
                     "type": "PipeSubstitution",
-                    "start": 72,
-                    "end": 73
+                    "start": 56,
+                    "end": 57
                   }
                 ],
                 "optional": false
@@ -121,34 +121,6 @@ expression: actual
         }
       ],
       "kind": "const"
-    },
-    {
-      "type": "ExpressionStatement",
-      "type": "ExpressionStatement",
-      "start": 75,
-      "end": 89,
-      "expression": {
-        "type": "CallExpression",
-        "type": "CallExpression",
-        "start": 75,
-        "end": 89,
-        "callee": {
-          "type": "Identifier",
-          "start": 75,
-          "end": 79,
-          "name": "show"
-        },
-        "arguments": [
-          {
-            "type": "Identifier",
-            "type": "Identifier",
-            "start": 80,
-            "end": 88,
-            "name": "cylinder"
-          }
-        ],
-        "optional": false
-      }
     }
   ],
   "nonCodeMeta": {

src/wasm-lib/kcl/src/std/extrude.rs

@@ -159,6 +159,7 @@ async fn inner_extrude(length: f64, sketch_group: Box<SketchGroup>, args: Args)
         // sketch group.
         id: sketch_group.id,
         value: new_value,
+        sketch_group_values: sketch_group.value.clone(),
         height: length,
         position: sketch_group.position,
         rotation: sketch_group.rotation,

src/wasm-lib/kcl/src/std/fillet.rs

@@ -0,0 +1,308 @@
+//! Standard library fillets.
+
+use anyhow::Result;
+use derive_docs::stdlib;
+use kittycad::types::ModelingCmd;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+use crate::{
+    errors::{KclError, KclErrorDetails},
+    executor::{ExtrudeGroup, ExtrudeSurface, MemoryItem, UserVal},
+    std::Args,
+};
+
+/// Data for fillets.
+#[derive(Debug, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema)]
+#[ts(export)]
+#[serde(rename_all = "camelCase")]
+pub struct FilletData {
+    /// The radius of the fillet.
+    pub radius: f64,
+    /// The tags of the paths you want to fillet.
+    pub tags: Vec<StringOrUuid>,
+}
+
+/// A string or a uuid.
+#[derive(Debug, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema, Ord, PartialOrd, Eq, Hash)]
+#[ts(export)]
+#[serde(untagged)]
+pub enum StringOrUuid {
+    /// A uuid.
+    Uuid(Uuid),
+    /// A string.
+    String(String),
+}
+
+/// Create fillets on tagged paths.
+pub async fn fillet(args: Args) -> Result<MemoryItem, KclError> {
+    let (data, extrude_group): (FilletData, Box<ExtrudeGroup>) = args.get_data_and_extrude_group()?;
+
+    let extrude_group = inner_fillet(data, extrude_group, args).await?;
+    Ok(MemoryItem::ExtrudeGroup(extrude_group))
+}
+
+/// Create fillets on tagged paths.
+#[stdlib {
+    name = "fillet",
+}]
+async fn inner_fillet(
+    data: FilletData,
+    extrude_group: Box<ExtrudeGroup>,
+    args: Args,
+) -> Result<Box<ExtrudeGroup>, KclError> {
+    // Check if tags contains any duplicate values.
+    let mut tags = data.tags.clone();
+    tags.sort();
+    tags.dedup();
+    if tags.len() != data.tags.len() {
+        return Err(KclError::Type(KclErrorDetails {
+            message: "Duplicate tags are not allowed.".to_string(),
+            source_ranges: vec![args.source_range],
+        }));
+    }
+
+    for tag in data.tags {
+        let edge_id = match tag {
+            StringOrUuid::Uuid(uuid) => uuid,
+            StringOrUuid::String(tag) => {
+                extrude_group
+                    .sketch_group_values
+                    .iter()
+                    .find(|p| p.get_name() == tag)
+                    .ok_or_else(|| {
+                        KclError::Type(KclErrorDetails {
+                            message: format!("No edge found with tag: `{}`", tag),
+                            source_ranges: vec![args.source_range],
+                        })
+                    })?
+                    .get_base()
+                    .geo_meta
+                    .id
+            }
+        };
+
+        args.send_modeling_cmd(
+            uuid::Uuid::new_v4(),
+            ModelingCmd::Solid3DFilletEdge {
+                edge_id,
+                object_id: extrude_group.id,
+                radius: data.radius,
+                tolerance: 0.0000001, // We can let the user set this in the future.
+            },
+        )
+        .await?;
+    }
+
+    Ok(extrude_group)
+}
+
+/// Get the opposite edge to the edge given.
+pub async fn get_opposite_edge(args: Args) -> Result<MemoryItem, KclError> {
+    let (tag, extrude_group): (String, Box<ExtrudeGroup>) = args.get_data_and_extrude_group()?;
+
+    let edge = inner_get_opposite_edge(tag, extrude_group, args.clone()).await?;
+    Ok(MemoryItem::UserVal(UserVal {
+        value: serde_json::to_value(edge).map_err(|e| {
+            KclError::Type(KclErrorDetails {
+                message: format!("Failed to convert Uuid to json: {}", e),
+                source_ranges: vec![args.source_range],
+            })
+        })?,
+        meta: vec![args.source_range.into()],
+    }))
+}
+
+/// Get the opposite edge to the edge given.
+#[stdlib {
+    name = "getOppositeEdge",
+}]
+async fn inner_get_opposite_edge(tag: String, extrude_group: Box<ExtrudeGroup>, args: Args) -> Result<Uuid, KclError> {
+    let tagged_path = extrude_group
+        .sketch_group_values
+        .iter()
+        .find(|p| p.get_name() == tag)
+        .ok_or_else(|| {
+            KclError::Type(KclErrorDetails {
+                message: format!("No edge found with tag: `{}`", tag),
+                source_ranges: vec![args.source_range],
+            })
+        })?
+        .get_base();
+
+    let face_id = get_adjacent_face_to_tag(&extrude_group, &tag, &args)?;
+
+    let resp = args
+        .send_modeling_cmd(
+            uuid::Uuid::new_v4(),
+            ModelingCmd::Solid3DGetOppositeEdge {
+                edge_id: tagged_path.geo_meta.id,
+                object_id: extrude_group.id,
+                face_id,
+            },
+        )
+        .await?;
+    let kittycad::types::OkWebSocketResponseData::Modeling {
+        modeling_response: kittycad::types::OkModelingCmdResponse::Solid3DGetOppositeEdge { data: opposite_edge },
+    } = &resp
+    else {
+        return Err(KclError::Engine(KclErrorDetails {
+            message: format!("Solid3DGetOppositeEdge response was not as expected: {:?}", resp),
+            source_ranges: vec![args.source_range],
+        }));
+    };
+
+    Ok(opposite_edge.edge)
+}
+
+/// Get the next adjacent edge to the edge given.
+pub async fn get_next_adjacent_edge(args: Args) -> Result<MemoryItem, KclError> {
+    let (tag, extrude_group): (String, Box<ExtrudeGroup>) = args.get_data_and_extrude_group()?;
+
+    let edge = inner_get_next_adjacent_edge(tag, extrude_group, args.clone()).await?;
+    Ok(MemoryItem::UserVal(UserVal {
+        value: serde_json::to_value(edge).map_err(|e| {
+            KclError::Type(KclErrorDetails {
+                message: format!("Failed to convert Uuid to json: {}", e),
+                source_ranges: vec![args.source_range],
+            })
+        })?,
+        meta: vec![args.source_range.into()],
+    }))
+}
+
+/// Get the next adjacent edge to the edge given.
+#[stdlib {
+    name = "getNextAdjacentEdge",
+}]
+async fn inner_get_next_adjacent_edge(
+    tag: String,
+    extrude_group: Box<ExtrudeGroup>,
+    args: Args,
+) -> Result<Uuid, KclError> {
+    let tagged_path = extrude_group
+        .sketch_group_values
+        .iter()
+        .find(|p| p.get_name() == tag)
+        .ok_or_else(|| {
+            KclError::Type(KclErrorDetails {
+                message: format!("No edge found with tag: `{}`", tag),
+                source_ranges: vec![args.source_range],
+            })
+        })?
+        .get_base();
+
+    let face_id = get_adjacent_face_to_tag(&extrude_group, &tag, &args)?;
+
+    let resp = args
+        .send_modeling_cmd(
+            uuid::Uuid::new_v4(),
+            ModelingCmd::Solid3DGetNextAdjacentEdge {
+                edge_id: tagged_path.geo_meta.id,
+                object_id: extrude_group.id,
+                face_id,
+            },
+        )
+        .await?;
+    let kittycad::types::OkWebSocketResponseData::Modeling {
+        modeling_response: kittycad::types::OkModelingCmdResponse::Solid3DGetNextAdjacentEdge { data: ajacent_edge },
+    } = &resp
+    else {
+        return Err(KclError::Engine(KclErrorDetails {
+            message: format!("Solid3DGetNextAdjacentEdge response was not as expected: {:?}", resp),
+            source_ranges: vec![args.source_range],
+        }));
+    };
+
+    ajacent_edge.edge.ok_or_else(|| {
+        KclError::Type(KclErrorDetails {
+            message: format!("No edge found next adjacent to tag: `{}`", tag),
+            source_ranges: vec![args.source_range],
+        })
+    })
+}
+
+/// Get the previous adjacent edge to the edge given.
+pub async fn get_previous_adjacent_edge(args: Args) -> Result<MemoryItem, KclError> {
+    let (tag, extrude_group): (String, Box<ExtrudeGroup>) = args.get_data_and_extrude_group()?;
+
+    let edge = inner_get_previous_adjacent_edge(tag, extrude_group, args.clone()).await?;
+    Ok(MemoryItem::UserVal(UserVal {
+        value: serde_json::to_value(edge).map_err(|e| {
+            KclError::Type(KclErrorDetails {
+                message: format!("Failed to convert Uuid to json: {}", e),
+                source_ranges: vec![args.source_range],
+            })
+        })?,
+        meta: vec![args.source_range.into()],
+    }))
+}
+
+/// Get the previous adjacent edge to the edge given.
+#[stdlib {
+    name = "getPreviousAdjacentEdge",
+}]
+async fn inner_get_previous_adjacent_edge(
+    tag: String,
+    extrude_group: Box<ExtrudeGroup>,
+    args: Args,
+) -> Result<Uuid, KclError> {
+    let tagged_path = extrude_group
+        .sketch_group_values
+        .iter()
+        .find(|p| p.get_name() == tag)
+        .ok_or_else(|| {
+            KclError::Type(KclErrorDetails {
+                message: format!("No edge found with tag: `{}`", tag),
+                source_ranges: vec![args.source_range],
+            })
+        })?
+        .get_base();
+
+    let face_id = get_adjacent_face_to_tag(&extrude_group, &tag, &args)?;
+
+    let resp = args
+        .send_modeling_cmd(
+            uuid::Uuid::new_v4(),
+            ModelingCmd::Solid3DGetPrevAdjacentEdge {
+                edge_id: tagged_path.geo_meta.id,
+                object_id: extrude_group.id,
+                face_id,
+            },
+        )
+        .await?;
+    let kittycad::types::OkWebSocketResponseData::Modeling {
+        modeling_response: kittycad::types::OkModelingCmdResponse::Solid3DGetPrevAdjacentEdge { data: ajacent_edge },
+    } = &resp
+    else {
+        return Err(KclError::Engine(KclErrorDetails {
+            message: format!("Solid3DGetPrevAdjacentEdge response was not as expected: {:?}", resp),
+            source_ranges: vec![args.source_range],
+        }));
+    };
+
+    ajacent_edge.edge.ok_or_else(|| {
+        KclError::Type(KclErrorDetails {
+            message: format!("No edge found previous adjacent to tag: `{}`", tag),
+            source_ranges: vec![args.source_range],
+        })
+    })
+}
+
+fn get_adjacent_face_to_tag(extrude_group: &ExtrudeGroup, tag: &str, args: &Args) -> Result<uuid::Uuid, KclError> {
+    extrude_group
+        .value
+        .iter()
+        .find_map(|extrude_surface| match extrude_surface {
+            ExtrudeSurface::ExtrudePlane(extrude_plane) if extrude_plane.name == tag => Some(Ok(extrude_plane.face_id)),
+            ExtrudeSurface::ExtrudeArc(extrude_arc) if extrude_arc.name == tag => Some(Ok(extrude_arc.face_id)),
+            ExtrudeSurface::ExtrudePlane(_) | ExtrudeSurface::ExtrudeArc(_) => None,
+        })
+        .ok_or_else(|| {
+            KclError::Type(KclErrorDetails {
+                message: format!("Expected a face with the tag `{}`", tag),
+                source_ranges: vec![args.source_range],
+            })
+        })?
+}