remove useAppMode hook file (#829)

src/lang/util.ts

@@ -1,6 +1,8 @@
 import { Selections, StoreState } from '../useStore'
 import { Program, PathToNode } from './wasm'
 import { getNodeFromPath } from './queryAst'
+import { ArtifactMap } from './std/engineConnection'
+import { isOverlap } from 'lib/utils'
 
 export function pathMapToSelections(
   ast: Program,
@@ -32,3 +34,27 @@ export function isReducedMotion(): boolean {
     window.matchMedia('(prefers-reduced-motion)').matches
   )
 }
+
+export function isCursorInSketchCommandRange(
+  artifactMap: ArtifactMap,
+  selectionRanges: Selections
+): string | false {
+  const overlapingEntries: [string, ArtifactMap[string]][] = Object.entries(
+    artifactMap
+  ).filter(([id, artifact]: [string, ArtifactMap[string]]) =>
+    selectionRanges.codeBasedSelections.some(
+      (selection) =>
+        Array.isArray(selection?.range) &&
+        Array.isArray(artifact?.range) &&
+        isOverlap(selection.range, artifact.range) &&
+        (artifact.commandType === 'start_path' ||
+          artifact.commandType === 'extend_path' ||
+          artifact.commandType === 'close_path')
+    )
+  )
+  return overlapingEntries.length && overlapingEntries[0][1].parentId
+    ? overlapingEntries[0][1].parentId
+    : overlapingEntries.find(
+        ([, artifact]) => artifact.commandType === 'start_path'
+      )?.[0] || false
+}