# TASK-003 Changelog: TypeScript Configuration Cleanup

---

## [2.0.0] - 2025-07-12

### 🎉 FINAL RESULT: Zero Type Errors! 

Successfully completed TypeScript configuration cleanup AND fixed all type errors:
**1954 → 0 errors (100% reduction)**

---

## [1.1.0] - 2025-07-12

### Additional Fixes (Phase 6)

Fixed the remaining 10 type errors to achieve zero errors:

#### LauncherProjectCard.tsx (3 errors → 0)
- Fixed `number` not assignable to `Slot` type for `pullAmount`, `pushAmount`, `uncommittedChangesAmount`
- Solution: Wrapped values in `String()` calls

#### Group.tsx Preview (4 errors → 0)
- Fixed missing `step` prop in `PropertyPanelSliderInput` properties
- Fixed missing `type` prop in `PropertyPanelNumberInput` components
- Solution: Added required props

#### noodl-git Diff Types (3 errors → 0)
- Added `DiffType.LargeText` enum value
- Added `ILargeTextDiff` interface
- Added `IDiffHunk` and `IDiffHunkHeader` interfaces
- Added optional `hunks` property to `ITextDiff` and `ILargeTextDiff`
- Solution: Extended diff type system to match existing code usage

### Files Modified (Phase 6)
1. `packages/noodl-core-ui/src/preview/launcher/Launcher/components/LauncherProjectCard/LauncherProjectCard.tsx`
2. `packages/noodl-core-ui/src/preview/property-panel/Group/Group.tsx`
3. `packages/noodl-git/src/core/models/diff-data.ts`

---

## [1.0.0] - 2025-07-12

### Summary
Completed TypeScript configuration cleanup, reducing errors from **1954 to 10** (99.5% reduction).

### Changes Made

#### Phase 1: Consolidated Global Type Declarations
- Created `packages/noodl-types/src/global.d.ts` as single source of truth for:
  - `TSFixme` type
  - CSS/SCSS/SVG module declarations
  - `NodeColor` type
  - `Window` augmentation
  - Utility types (`Prettify`, `PartialWithRequired`)
- Updated `packages/noodl-core-ui/src/@include-types/global.d.ts` to reference shared types
- Updated `packages/noodl-editor/@include-types/global.d.ts` to reference shared types

#### Phase 2: Root tsconfig.json Configuration
Added essential settings to root `tsconfig.json`:
```json
{
  "compilerOptions": {
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,
    "baseUrl": ".",
    "paths": {
      "@noodl-core-ui/*": ["./packages/noodl-core-ui/src/*"],
      "@noodl-hooks/*": ["./packages/noodl-editor/src/editor/src/hooks/*"],
      "@noodl-utils/*": ["./packages/noodl-editor/src/editor/src/utils/*"],
      "@noodl-models/*": ["./packages/noodl-editor/src/editor/src/models/*"],
      "@noodl-constants/*": ["./packages/noodl-editor/src/editor/src/constants/*"],
      "@noodl-contexts/*": ["./packages/noodl-editor/src/editor/src/contexts/*"],
      "@noodl-types/*": ["./packages/noodl-editor/src/editor/src/types/*"],
      "@noodl-store/*": ["./packages/noodl-editor/src/editor/src/store/*"]
    }
  },
  "include": [
    "packages/noodl-types/src/**/*",
    "packages/noodl-core-ui/src/**/*",
    "packages/noodl-editor/src/**/*",
    "packages/noodl-editor/@include-types/**/*",
    "packages/noodl-viewer-react/src/**/*",
    "packages/noodl-viewer-cloud/src/**/*",
    "packages/noodl-platform/src/**/*",
    "packages/noodl-platform-electron/src/**/*",
    "packages/noodl-platform-node/src/**/*",
    "packages/noodl-git/src/**/*"
  ],
  "exclude": [
    "**/*.stories.tsx"
  ]
}
```

#### Phase 3: Fixed Module Setting for import.meta
Changed `"module": "CommonJS"` to `"module": "ES2020"` to enable `import.meta.hot` for HMR support.

#### Phase 4: Added Typecheck Scripts
Added to root `package.json`:
```json
{
  "scripts": {
    "typecheck": "tsc --noEmit",
    "typecheck:core-ui": "tsc -p packages/noodl-core-ui --noEmit",
    "typecheck:editor": "tsc -p packages/noodl-editor --noEmit",
    "typecheck:viewer": "tsc -p packages/noodl-viewer-react --noEmit"
  }
}
```

### Final Results

| Stage | Error Count | Reduction |
|-------|-------------|-----------|
| Baseline | 1954 | - |
| After Phase 2 (Config) | 30 | 98.5% |
| After Phase 3 (Module) | 10 | 99.5% |
| After Phase 6 (Fixes) | **0** | **100%** |

### All Files Modified
1. `tsconfig.json` (root) - Added path aliases, module resolution, includes/excludes
2. `package.json` (root) - Added typecheck scripts
3. `packages/noodl-types/src/global.d.ts` - New consolidated global types
4. `packages/noodl-core-ui/src/@include-types/global.d.ts` - Reference to shared types
5. `packages/noodl-editor/@include-types/global.d.ts` - Reference to shared types
6. `packages/noodl-core-ui/src/preview/launcher/Launcher/components/LauncherProjectCard/LauncherProjectCard.tsx` - Type fixes
7. `packages/noodl-core-ui/src/preview/property-panel/Group/Group.tsx` - Type fixes
8. `packages/noodl-git/src/core/models/diff-data.ts` - Added missing diff types

---

## Reference

### Commands
```bash
# Run type checking from root (should show 0 errors!)
npm run typecheck

# Run type checking for specific package
npm run typecheck:core-ui
npm run typecheck:editor
npm run typecheck:viewer
```

### Related Tasks
- TASK-004: Storybook 8 Migration (handles Storybook API in .stories.tsx files)
