db0c748e22
Tasks completed: 3/3 - Task 1: Create SortOrderProvider unit tests (22 tests) - Task 2: Create persistence integration tests (12 tests) - Task 3: Verify full test suite passes (no regressions) SUMMARY: .planning/phases/01-semantic-position-model/01-02-SUMMARY.md Phase 1 complete: 2/2 plans
3.0 KiB
3.0 KiB
Project State: Itinerary Editor
Project Reference
Core Value: Drag-and-drop that operates on semantic positions (day + sortOrder), not row indices - so user intent is preserved across data reloads.
Current Focus: Phase 1 Complete - Ready for Phase 2 (Constraint Validation)
Current Position
Phase: 1 of 4 (Semantic Position Model) - COMPLETE Plan: 2 of 2 complete Status: Phase complete Last activity: 2026-01-18 - Completed 01-02-PLAN.md
Progress: [##--------] 25%
Phase 1: [##########] 100% (2/2 plans) COMPLETE
Phase 2: [----------] Not Started
Phase 3: [----------] Not Started
Phase 4: [----------] Not Started
Performance Metrics
| Metric | Value |
|---|---|
| Total Requirements | 23 |
| Completed | 8 |
| Current Phase | 1 (complete) |
| Plans Executed | 2 |
Accumulated Context
Key Decisions
| Decision | Rationale | Phase |
|---|---|---|
| UITableView over SwiftUI List | SwiftUI drag-drop lacks insertion line precision | Pre-planning |
| (day, sortOrder) position model | Row indices break on reload; semantic position is stable | Pre-planning |
| Insertion lines (not zones) | User wants precise feedback on exact drop location | Pre-planning |
| Invalid drops rejected (snap back) | Cleaner than auto-clamping; user knows what happened | Pre-planning |
| Games get sortOrder from 100 + minutes since midnight | Range 100-1540 leaves room for negative sortOrder items | 01-01 |
| Normalization threshold at 1e-10 | Standard floating-point comparison for precision exhaustion | 01-01 |
| Day 1 = trip.startDate | 1-indexed, games belong to their start date | 01-01 |
| Swift Testing (@Test) over XCTest | Matches existing project test patterns | 01-02 |
| LocalItineraryItem conversion for testing | Avoids #Predicate macro issues with local captures | 01-02 |
Learned
- Previous attempts failed due to row-based thinking instead of semantic positioning
- Travel was incorrectly treated as structural ("travelBefore") instead of positional
- Hard-coded flatten order ignoring sortOrder caused reload issues
- SortOrderProvider provides static methods for all sortOrder calculations
- Trip extension provides instance methods for day number derivation
- 50 midpoint insertions maintain distinct sortOrder values before precision loss
TODOs
- Create tests for semantic position persistence (Plan 01-02) - COMPLETE
Blockers
None currently.
Session Continuity
Last Session: 2026-01-18T20:11:09Z Stopped at: Completed 01-02-PLAN.md (Phase 1 complete) Resume file: .planning/phases/02-constraint-validation/02-01-PLAN.md
Context for Next Session
Phase 1 complete with 34 tests covering:
- SortOrderProvider: all 6 methods tested (22 tests)
- Position persistence: encode/decode, SwiftData conversion (12 tests)
- Requirements DATA-01 through DATA-05 and PERS-01 through PERS-03 verified
Ready to start Phase 2: Constraint Validation (drop rules, game immutability, valid drop targets).
State initialized: 2026-01-18 Last updated: 2026-01-18