eb182c938b
Tasks completed: 2/2 - Create SortOrderProvider utility - Add day derivation methods to Trip SUMMARY: .planning/phases/01-semantic-position-model/01-01-SUMMARY.md
96 lines
3.2 KiB
Markdown
96 lines
3.2 KiB
Markdown
---
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phase: 01-semantic-position-model
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plan: 01
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subsystem: domain
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tags: [swift, sortOrder, calendar, trip, itinerary]
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# Dependency graph
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requires: []
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provides:
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- SortOrderProvider utility with 6 static methods for sortOrder calculation
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- Trip.dayNumber(for:) and Trip.date(forDay:) for semantic day derivation
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affects:
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- 01-02-PLAN (tests depend on these utilities)
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- Phase 2 constraint validation (will use sortOrder utilities)
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- Phase 3 visual flattening (will sort by sortOrder)
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- "SortOrderProvider enum with static methods for sortOrder calculation"
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- "Double-based sortOrder with midpoint insertion (~52 insertions before precision loss)"
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- "1-indexed day numbering relative to trip.startDate"
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key-files:
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created:
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- SportsTime/Core/Models/Domain/SortOrderProvider.swift
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modified:
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- SportsTime/Core/Models/Domain/Trip.swift
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key-decisions:
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- "Games get sortOrder from 100 + minutes since midnight (range 100-1540)"
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- "Midpoint insertion via (above + below) / 2.0"
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- "Normalization threshold at 1e-10 gap between adjacent items"
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- "Day 1 = trip.startDate, games belong to their start date"
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patterns-established:
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- "SortOrderProvider.initialSortOrder(forGameTime:) for deriving sortOrder from game time"
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- "SortOrderProvider.sortOrderBetween(_:_:) for insertion between items"
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- "Trip.dayNumber(for:) and Trip.date(forDay:) for semantic day calculation"
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# Metrics
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duration: 3min
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completed: 2026-01-18
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---
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# Phase 1 Plan 1: SortOrder Utilities Summary
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**SortOrderProvider enum with 6 static methods for sortOrder calculation plus Trip.dayNumber/date(forDay:) for semantic day derivation**
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## Performance
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- **Duration:** 3 min
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- **Started:** 2026-01-18T19:49:28Z
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- **Completed:** 2026-01-18T19:52:00Z
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- **Tasks:** 2
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- **Files modified:** 2
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## Accomplishments
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- Created SortOrderProvider utility with all sortOrder calculation methods
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- Added day derivation methods to Trip for semantic (day, sortOrder) positioning
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- Both files compile successfully with no warnings
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## Task Commits
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Each task was committed atomically:
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1. **Task 1: Create SortOrderProvider utility** - `9915ad3` (feat)
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2. **Task 2: Add day derivation methods to Trip** - `6d43edf` (feat)
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## Files Created/Modified
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- `SportsTime/Core/Models/Domain/SortOrderProvider.swift` - Enum with 6 static methods: initialSortOrder(forGameTime:), sortOrderBetween(_:_:), sortOrderBefore(_:), sortOrderAfter(_:), needsNormalization(_:), normalize(_:)
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- `SportsTime/Core/Models/Domain/Trip.swift` - Added extension with dayNumber(for:) and date(forDay:) instance methods
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## Decisions Made
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None - followed plan as specified. Research document provided complete implementation guidance.
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## Deviations from Plan
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None - plan executed exactly as written.
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## Issues Encountered
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None.
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## User Setup Required
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None - no external service configuration required.
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## Next Phase Readiness
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- SortOrderProvider and Trip day derivation methods ready for use
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- Plan 01-02 can now create tests verifying semantic position persistence
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- All 6 SortOrderProvider methods are static and publicly accessible
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- Trip extension methods are instance methods callable on any Trip value
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---
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*Phase: 01-semantic-position-model*
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*Completed: 2026-01-18*
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