# TypeScript Migration - Visual Timeline ## 6-Week Balanced Timeline (RECOMMENDED) ### Gantt Chart View ``` Week 1: Foundation & Core Types ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Phase 0: Setup ████████░░░░░░░░░░░░░░░░░░░░░░ 4-6h Phase 1: Core Types ░░░░░░░░████████████████░░░░░░ 6-8h Mon Tue Wed Thu Fri CHECKPOINT 1: Build works, utils typed ✓ Week 2: Board & Piece Foundation ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Phase 2a: Board ████████████░░░░░░░░░░░░░░░░░░ 3-4h Phase 2b: Piece Base ░░░░░░░░░░░░████████████░░░░░░ 2h Phase 2c: Simple ░░░░░░░░░░░░░░░░░░░░████████░░ 3h Pieces Mon Tue Wed Thu Fri CHECKPOINT 2: Core models typed ✓ Week 3: Complete Pieces & Engine ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Phase 2d: Complex ████████████░░░░░░░░░░░░░░░░░░ 3-4h Pieces Phase 3a: GameState ░░░░░░░░░░░░████████░░░░░░░░░░ 3-4h Phase 3b: Validators ░░░░░░░░░░░░░░░░░░░░████████░░ 3-4h Mon Tue Wed Thu Fri CHECKPOINT 3: Game logic works ✓ Week 4: Engine & UI Foundation ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Phase 3c: Special ████████░░░░░░░░░░░░░░░░░░░░░░ 2-3h Moves Phase 4a: Renderer ░░░░░░░░████████████░░░░░░░░░░ 2-3h Phase 4b: DragDrop ░░░░░░░░░░░░░░░░████████░░░░░░ 2-3h Mon Tue Wed Thu Fri CHECKPOINT 4: UI typed ✓ Week 5: Controllers & Integration ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Phase 4c: Controller ████████████░░░░░░░░░░░░░░░░░░ 2-3h Phase 5a: Main Entry ░░░░░░░░░░░░████░░░░░░░░░░░░░░ 1-2h Phase 5b: Test Mig ░░░░░░░░░░░░░░░░████████████░░ 3-4h Mon Tue Wed Thu Fri CHECKPOINT 5: Full game playable ✓ Week 6: Polish & Production ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Phase 6a: Optimize ████████░░░░░░░░░░░░░░░░░░░░░░ 2h Phase 6b: Docs ░░░░░░░░████████░░░░░░░░░░░░░░ 1-2h Phase 6c: Build Setup ░░░░░░░░░░░░░░░░████░░░░░░░░░░ 1h Phase 6d: Final QA ░░░░░░░░░░░░░░░░░░░░████████░░ 1h Buffer/Contingency ░░░░░░░░░░░░░░░░░░░░░░░░████░░ Flex Mon Tue Wed Thu Fri CHECKPOINT 6: Production ready! ✓✓✓ ``` --- ## Daily Breakdown (Balanced 6-Week Timeline) ### Week 1: Foundation (10-14 hours) **Monday (2-3h)** - Install TypeScript and dependencies (1h) - Create tsconfig.json (1h) - Configure Jest with ts-jest (1h) **Tuesday (2-3h)** - Create global type definitions (1h) - Set up build scripts (1h) - Test compilation pipeline (1h) **Wednesday (2-3h)** - Migrate Constants.js → Constants.ts (2h) - Run validation tests (1h) **Thursday (2-3h)** - Migrate Helpers.js → Helpers.ts (2h) - Update tests (1h) **Friday (2-3h)** - Migrate EventBus.js → EventBus.ts (2-3h) **Weekend: CHECKPOINT 1** - Verify all utils typed - Ensure build works - All tests passing --- ### Week 2: Board & Pieces (10-12 hours) **Monday (3-4h)** - Create Board interface (1h) - Migrate Board.js → Board.ts (2-3h) **Tuesday (2-3h)** - Fix Board type issues (1h) - Run Board tests (1h) - Create Piece interfaces (1h) **Wednesday (2-3h)** - Migrate Piece.js → Piece.ts (2h) - Update piece tests (1h) **Thursday (2-3h)** - Migrate Rook.ts + Bishop.ts (2h) - Run tests (1h) **Friday (2-3h)** - Migrate Knight.ts + Queen.ts (2-3h) **Weekend: CHECKPOINT 2** - Verify core models typed - Simple pieces working - Tests passing --- ### Week 3: Complex Pieces & Engine (12-14 hours) **Monday (3-4h)** - Migrate Pawn.ts (en passant logic) (2-3h) - Run pawn tests (1h) **Tuesday (3-4h)** - Migrate King.ts (castling logic) (2-3h) - Run king tests (1h) **Wednesday (3-4h)** - Create GameState types (1h) - Migrate GameState.js → GameState.ts (2-3h) **Thursday (3-4h)** - Create Move types (1h) - Migrate MoveValidator.js → MoveValidator.ts (2-3h) **Friday (2-3h)** - Migrate SpecialMoves.js → SpecialMoves.ts (2-3h) **Weekend: CHECKPOINT 3** - Game logic fully typed - All pieces working - Move validation correct --- ### Week 4: UI Layer (10-12 hours) **Monday (2-3h)** - Create UI types (30min) - Migrate BoardRenderer.js → BoardRenderer.ts (2h) **Tuesday (2-3h)** - Fix DOM type issues (1h) - Test rendering (1h) - Create drag/drop types (30min) **Wednesday (2-3h)** - Migrate DragDropHandler.js → DragDropHandler.ts (2h) - Test drag/drop (1h) **Thursday (2-3h)** - Migrate GameController.js → GameController.ts (2-3h) **Friday (2-3h)** - Fix controller type issues (1h) - Integration testing (1-2h) **Weekend: CHECKPOINT 4** - Full UI typed - Game playable - All interactions work --- ### Week 5: Integration (8-10 hours) **Monday (2h)** - Migrate main.js → main.ts (1-2h) **Tuesday (2-3h)** - Fix main entry point issues (1h) - Update HTML references (30min) - Test full application (1h) **Wednesday (2-3h)** - Start test file conversions (2-3h) **Thursday (2-3h)** - Continue test migrations (2-3h) **Friday (2-3h)** - Complete test migrations (2h) - Run full test suite (1h) **Weekend: CHECKPOINT 5** - All source files .ts - All test files .ts - 124/124 tests passing --- ### Week 6: Polish & Production (8-10 hours) **Monday (2h)** - Type optimization (1h) - Remove unnecessary assertions (1h) **Tuesday (2-3h)** - Update README.md (1h) - Create migration guide (1h) - Document type conventions (1h) **Wednesday (2h)** - Configure production build (1h) - Set up source maps (30min) - Optimize compilation (30min) **Thursday (2h)** - Full test suite run (30min) - Manual feature testing (1h) - Performance testing (30min) **Friday (2-3h)** - Code review (1-2h) - Final fixes (1h) - Prepare deployment (30min) **Weekend: CHECKPOINT 6** - Production ready! - Zero type errors - All tests passing - Documentation complete --- ## 4-Week Aggressive Timeline ### Compressed View ``` Week 1: Phase 0-1 ████████████████████░░░░░░░░░░ 10-14h Week 2: Phase 2 ░░░░░░░░░░░░░░░░░░░░████████░░ 12-15h Week 3: Phase 3-4 ░░░░░░░░░░░░░░░░░░░░░░░░░░██░░ 15-18h Week 4: Phase 5-6 ░░░░░░░░░░░░░░░░░░░░░░░░░░░░██ 10-12h ``` **Total:** 47-59 hours over 4 weeks (12-15h per week) **Intensity:** HIGH - requires focused, full-time effort **Risk:** Medium - less buffer for issues --- ## 8-Week Conservative Timeline ### Relaxed View ``` Week 1-2: Phase 0-1 ████████████████████░░░░░░░░░░ 10-14h Week 3-4: Phase 2 ░░░░░░░░░░░░░░░░░░░░████████░░ 12-15h Week 5-6: Phase 3-4 ░░░░░░░░░░░░░░░░░░░░░░░░░░██░░ 15-18h Week 7-8: Phase 5-6 ░░░░░░░░░░░░░░░░░░░░░░░░░░░░██ 10-12h ``` **Total:** 47-59 hours over 8 weeks (6-7h per week) **Intensity:** LOW - sustainable, learning-friendly **Risk:** Low - plenty of buffer time --- ## Parallel Work Opportunities ### Can Work in Parallel **Phase 1: Core Types** ``` Developer A: Constants.ts ████████ Developer B: Helpers.ts ████████ Developer C: EventBus.ts ████████ Mon Tue Wed ``` **Time Saved:** 4-6 hours (from 6-8h to 2-3h) **Phase 2c: Concrete Pieces** ``` Dev A: Rook + Bishop ████████ Dev B: Knight + Queen ████████ Dev C: Pawn + King ████████████ Mon Tue Wed Thu ``` **Time Saved:** 3-4 hours (from 5-6h to 2-3h) **Phase 4: UI Components** ``` Dev A: BoardRenderer ████████ Dev B: DragDropHandler ████████ Dev C: GameController ████████ Mon Tue Wed ``` **Time Saved:** 2-3 hours (from 6-8h to 3-4h) **Total Parallelization Savings:** 9-13 hours --- ## Critical Path (Cannot Parallelize) ### Sequential Dependencies ``` 1. TypeScript Setup (Phase 0) 4-6h ↓ [BLOCKING] 2. Constants & Types (Phase 1) 6-8h ↓ [BLOCKING] 3. Board.ts 3-4h ↓ [BLOCKING] 4. Piece.ts (base class) 2h ↓ [BLOCKING] 5. [Concrete pieces - CAN PARALLEL] 3-4h ↓ [BLOCKING] 6. GameState.ts 3-4h ↓ [BLOCKING] 7. MoveValidator.ts 2-3h ↓ [BLOCKING] 8. [UI components - CAN PARALLEL] 3-4h ↓ [BLOCKING] 9. main.ts 1-2h ↓ [BLOCKING] 10. Test migrations 3-4h TOTAL CRITICAL PATH: 30-40 hours ``` --- ## Resource Allocation Strategies ### Strategy 1: Solo Developer (6 weeks) ``` Week Hours Cumulative 1 10-14 10-14 2 10-12 20-26 3 12-14 32-40 4 10-12 42-52 5 8-10 50-62 6 8-10 58-72 TOTAL: 58-72 hours over 6 weeks ``` ### Strategy 2: Pair (2 devs, 4 weeks) ``` Week Hours/Dev Total Hours 1 10 20 2 12 24 3 12 24 4 10 20 TOTAL: 44h/dev, 88h combined TIME SAVED: 2 weeks ``` ### Strategy 3: Team (3 devs, 3 weeks) ``` Week Hours/Dev Total Hours 1 8 24 2 10 30 3 10 30 TOTAL: 28h/dev, 84h combined TIME SAVED: 3 weeks ``` --- ## Checkpoint Success Criteria ### Checkpoint 1: Foundation (End Week 1) - ✅ TypeScript compiles without errors - ✅ Jest runs with ts-jest - ✅ All util modules typed - ✅ Build scripts work - ✅ Team comfortable with setup **GO/NO-GO Decision:** - GO: Proceed to Phase 2 - NO-GO: Fix foundation issues --- ### Checkpoint 2: Models (End Week 2) - ✅ Board class fully typed - ✅ Piece hierarchy correct - ✅ Simple pieces migrated - ✅ Tests passing (>90%) - ✅ No critical type errors **GO/NO-GO Decision:** - GO: Proceed to complex pieces - NO-GO: Fix model types --- ### Checkpoint 3: Engine (End Week 3) - ✅ All pieces migrated - ✅ GameState typed - ✅ Move validation works - ✅ Special moves typed - ✅ Tests passing (>95%) **GO/NO-GO Decision:** - GO: Proceed to UI - NO-GO: Fix game logic --- ### Checkpoint 4: UI (End Week 4) - ✅ All controllers typed - ✅ Rendering works correctly - ✅ Drag/drop functional - ✅ Full game playable - ✅ No DOM errors **GO/NO-GO Decision:** - GO: Proceed to integration - NO-GO: Fix UI types --- ### Checkpoint 5: Integration (End Week 5) - ✅ All source files .ts - ✅ All test files .ts - ✅ 124/124 tests passing - ✅ Main entry typed - ✅ Full app functional **GO/NO-GO Decision:** - GO: Proceed to polish - NO-GO: Fix integration issues --- ### Checkpoint 6: Production (End Week 6) - ✅ Zero TypeScript errors - ✅ Type coverage >95% - ✅ Documentation complete - ✅ Build optimized - ✅ Ready to deploy **SHIP/NO-SHIP Decision:** - SHIP: Deploy to production - NO-SHIP: Address remaining issues --- ## Velocity Tracking ### Expected Progress by Week | Week | Phase | Files Complete | Tests Passing | Type Coverage | |------|-------|----------------|---------------|---------------| | 1 | 0-1 | 3/18 (17%) | 124/124 | 15% | | 2 | 2 | 11/18 (61%) | 120/124 | 55% | | 3 | 3 | 14/18 (78%) | 118/124 | 75% | | 4 | 4 | 17/18 (94%) | 122/124 | 90% | | 5 | 5 | 18/18 (100%) | 124/124 | 95% | | 6 | 6 | 18/18 (100%) | 124/124 | 98% | ### Burn-Down Chart (Ideal) ``` Files Remaining 18 ┤ ● 16 ┤ ╲ 14 ┤ ╲ 12 ┤ ● 10 ┤ ╲ 8 ┤ ╲ 6 ┤ ● 4 ┤ ╲ 2 ┤ ● 0 ┤ ●──● └───────────────── 0 1 2 3 4 5 6 Weeks ``` --- ## Time-Boxing Guidelines ### Maximum Time per Module | Module | Estimate | Time Box | Escalation Trigger | |--------|----------|----------|-------------------| | Constants.ts | 2h | 3h | Type complexity | | Helpers.ts | 2h | 3h | Function signatures | | EventBus.ts | 2-3h | 4h | Generic types | | Board.ts | 2-3h | 4h | Grid typing | | Piece.ts | 2h | 3h | Abstract class | | Simple Piece | 30-45min | 1.5h | Move logic | | Complex Piece | 1-1.5h | 2h | Special moves | | GameState.ts | 3-4h | 5h | State management | | MoveValidator.ts | 2-3h | 4h | Validation logic | | SpecialMoves.ts | 2-3h | 4h | Castling/en passant | | BoardRenderer.ts | 2h | 3h | DOM types | | DragDropHandler.ts | 2h | 3h | Event types | | GameController.ts | 2-3h | 4h | Orchestration | | main.ts | 1-2h | 3h | Initialization | **Escalation Process:** 1. Hit time box → Document blocker 2. Ask for help / pair program 3. Consider rollback if >2x estimate 4. Re-evaluate approach --- ## Visual Progress Tracker ### Use This Template for Weekly Updates ```markdown ## Week X Progress Report ### Completed ✅ - [x] Module A (Xh actual vs Yh estimated) - [x] Module B (Xh actual vs Yh estimated) ### In Progress 🔄 - [ ] Module C (50% complete) ### Blocked 🛑 - [ ] Module D (reason: waiting for...) ### Metrics - Files: X/18 (X%) - Tests: X/124 (X%) - Type Coverage: X% - Hours This Week: X - Hours Total: X/47 ### Velocity - Planned: Xh - Actual: Xh - Variance: +/- Xh ### Next Week - [ ] Task 1 - [ ] Task 2 - [ ] Task 3 ### Blockers / Risks - [List any issues] ### Confidence - ● High / ○ Medium / ○ Low ``` --- **Ready to start?** 1. Choose your timeline (4, 6, or 8 weeks) 2. Allocate resources (solo, pair, or team) 3. Set up weekly checkpoints 4. Begin Phase 0! **Document Version:** 1.0 **Last Updated:** 2025-11-23