functional sketch working (#26)

* functional sketch working

With old sketch block still there

* get all version of lines working with add line and update line

* remove old ui state types

* some clean up

* rename some things

* add todo for multi cursor

* shorten useStore repitition

* small type improvement

* big overhaul to group sketch function and they ast modifying helpers together

* unneeded tweak

* ruthlessly rip out sketch logic

* clean up path keyword

* getting sketch on face working again with all the new sketch line types

* add a bunch of tests and re-arrage file structure

src/lib/utils.test.ts

@@ -1,8 +1,8 @@
-import { isOverlapping } from './utils'
+import { isOverlap, roundOff } from './utils'
 import { Range } from '../useStore'
 
 describe('testing isOverlapping', () => {
-  testBothOrders([0, 5], [3, 10])
+  testBothOrders([0, 3], [3, 10])
   testBothOrders([0, 5], [3, 4])
   testBothOrders([0, 5], [5, 10])
   testBothOrders([0, 5], [6, 10], false)
@@ -13,7 +13,22 @@ describe('testing isOverlapping', () => {
 
 function testBothOrders(a: Range, b: Range, result = true) {
   it(`test is overlapping ${a} ${b}`, () => {
-    expect(isOverlapping(a, b)).toBe(result)
-    expect(isOverlapping(b, a)).toBe(result)
+    expect(isOverlap(a, b)).toBe(result)
+    expect(isOverlap(b, a)).toBe(result)
   })
 }
+
+describe('testing roundOff', () => {
+  it('defaults to 2 decimal places', () => {
+    expect(roundOff(1.23456789)).toBe(1.23)
+  })
+  it('rounds off to 3 decimal places', () => {
+    expect(roundOff(1.23456789, 3)).toBe(1.235)
+  })
+  it('works with whole numbers', () => {
+    expect(roundOff(1.23456789, 0)).toBe(1)
+  })
+  it('rounds up ok', () => {
+    expect(roundOff(1.273456789, 1)).toBe(1.3)
+  })
+})