**Problem:**
- player-ownership.ts imported drizzle-orm and @/db at top level
- When RoomMemoryPairsProvider imported client-safe utilities, Webpack bundled ALL imports including database code
- This caused hydration error: "The 'original' argument must be of type Function"
- Node.js util.promisify was being called in browser context
**Solution:**
1. Created player-ownership.client.ts with ONLY client-safe utilities
- No database imports
- Safe to import from 'use client' components
- Contains: buildPlayerOwnershipFromRoomData(), buildPlayerMetadata(), helper functions
2. Updated player-ownership.ts to re-export client utilities and add server-only functions
- Re-exports everything from .client.ts
- Adds buildPlayerOwnershipMap() (async, database-backed)
- Safe to import from server components/API routes
3. Updated RoomMemoryPairsProvider to import from .client.ts
**Result:**
- No more hydration errors on /arcade/room
- Client bundle doesn't include database code
- Server code can still use both client and server utilities
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Major Updates:
✅ Updated plan to reflect Phases 1-4 COMPLETED
🎯 All 4 core success criteria achieved:
1. No more totalColumns threading
2. Native place value API
3. Map operations instead of array math
4. Clean highlighting API without effectiveColumns
🧪 Added comprehensive testing strategy:
- Priority 1: Core architecture validation (place-value functions)
- Priority 2: Highlighting system validation (no threading)
- Priority 3: Interaction system validation (click handlers)
- Priority 4: Backward compatibility validation
Testing includes:
- Unit tests for all new place-value functions
- Integration tests for tutorial highlighting
- Performance benchmarks vs legacy system
- Visual regression testing
- Property-based testing for value calculations
- Cross-browser and accessibility testing
The core "column index nightmare" is officially SOLVED! 🎉🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Phases 1-3.1 completed successfully:
✅ Phase 1: Core Data Structure Redesign (COMPLETED)
✅ Phase 2: Bead State Management (COMPLETED)
✅ Phase 3.1: Fix highlighting functions (COMPLETED)
Major Achievement: The core "column index nightmare" has been solved!
- NO MORE: Math.pow(10, totalColumns - 1 - index) calculations
- NO MORE: Threading effectiveColumns through highlighting functions
- NO MORE: Array-to-place-value conversions
Native place-value architecture now provides:
- Direct place value access without conversions
- Map-based operations instead of array index math
- Clean highlighting API without totalColumns parameter
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
Thomas Hallock