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d1619b4a1f
strat-gameplay-webapp/.claude/implementation
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Cal Corum d1619b4a1f CLAUDE: Phase 3 - Substitution System Core Logic 
Implemented comprehensive substitution system with DB-first pattern:

## Core Components (1,027 lines)

1. SubstitutionRules (345 lines)
   - Validates pinch hitter, defensive replacement, pitching change
   - Enforces no re-entry, roster eligibility, active status
   - Comprehensive error messages with error codes

2. SubstitutionManager (552 lines)
   - Orchestrates DB-first pattern: validate → DB → state
   - Handles pinch_hit, defensive_replace, change_pitcher
   - Automatic state sync and lineup cache updates

3. Database Operations (+115 lines)
   - create_substitution(): Creates sub with full metadata
   - get_eligible_substitutes(): Lists inactive players

4. Model Enhancements (+15 lines)
   - Added get_player_by_card_id() to TeamLineupState

## Key Features

- ✅ DB-first pattern (database is source of truth)
- ✅ Immutable lineup history (audit trail)
- ✅ Comprehensive validation (8+ rule checks)
- ✅ State + DB sync guaranteed
- ✅ Error handling at every step
- ✅ Detailed logging for debugging

## Architecture Decisions

- Position flexibility (MVP - no eligibility check)
- Batting order inheritance (pinch hitter takes spot)
- No re-entry (matches real baseball rules)
- Validation uses in-memory state (fast)

## Remaining Work

- WebSocket event handlers (2-3 hours)
- Comprehensive testing (2-3 hours)
- API documentation (1 hour)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-03 23:50:33 -06:00
..
player-model-specs CLAUDE: Reorganize Week 6 documentation and separate player model specifications 2025-10-25 23:48:57 -05:00
00-index.md CLAUDE: Update implementation notes to reflect Phase 2 completion 2025-11-03 13:18:01 +00:00
01-infrastructure.md SBa name update 2025-10-22 11:22:15 -05:00
02-game-engine.md CLAUDE: Complete Week 5 testing and update documentation 2025-10-25 22:57:23 -05:00
03-gameplay-features.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
04-spectator-polish.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
05-testing-launch.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
api-reference.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
auth-system.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
backend-architecture.md SBa name update 2025-10-22 11:22:15 -05:00
database-design.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
frontend-architecture.md SBa name update 2025-10-22 11:22:15 -05:00
GAMESTATE_REFACTOR_PLAN.md CLAUDE: Phase 3E-Prep - Refactor GameState to use full LineupPlayerState objects 2025-11-03 14:11:40 -06:00
GROUNDBALL_CHART_REFERENCE.md CLAUDE: Fix critical X-Check bugs and improve dice rolling 2025-11-02 23:09:16 -06:00
NEXT_SESSION.md CLAUDE: Update documentation for Phase 3E-Main completion 2025-11-03 21:40:09 -06:00
PHASE_3_OVERVIEW.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
PHASE_3D_CRITICAL_FIX.md CLAUDE: Fix critical X-Check bugs and improve dice rolling 2025-11-02 23:09:16 -06:00
phase-3a-COMPLETED.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
phase-3a-data-models.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
phase-3b-league-config-tables.md CLAUDE: Implement Phase 3B - X-Check league config tables 2025-11-01 19:50:55 -05:00
phase-3c-resolution-logic.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
phase-3d-runner-advancement.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
phase-3e-websocket-events.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
phase-3f-testing-integration.md CLAUDE: Implement Phase 3A - X-Check data models and enums 2025-11-01 15:32:09 -05:00
player-data-catalog.md CLAUDE: Complete Week 4 - State Management & Persistence 2025-10-22 12:01:03 -05:00
SUBSTITUTION_SYSTEM_SUMMARY.md CLAUDE: Phase 3 - Substitution System Core Logic 2025-11-03 23:50:33 -06:00
testing-strategy.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
TODO_RESOLUTION_SUMMARY.md Offline catchup 2025-11-03 12:43:54 -06:00
websocket-protocol.md CLAUDE: Initial project setup - documentation and infrastructure 2025-10-21 16:21:13 -05:00
XCHECK_TEST_VALIDATION.md CLAUDE: Fix critical X-Check bugs and improve dice rolling 2025-11-02 23:09:16 -06:00