SportstimeAPI/.planning/phases/03-visual-flattening/03-VERIFICATION.md

phase, verified, status, score, re_verification

phase	verified	status	score	re_verification
03-visual-flattening	2026-01-18T22:30:00Z	passed	7/7 must-haves verified	false

Phase 3: Visual Flattening Verification Report

Phase Goal: Semantic items flatten to display rows deterministically, sorted by sortOrder. Verified: 2026-01-18T22:30:00Z Status: passed Re-verification: No - initial verification

Goal Achievement

Observable Truths

#	Truth	Status	Evidence
1	Items with lower sortOrder appear before items with higher sortOrder	VERIFIED	ItineraryFlattener.swift:93 sorts by sortOrder ascending
2	Items with sortOrder < 0 appear before games	VERIFIED	Test success_negativeSortOrderAppearsBeforeGames passes
3	Items with sortOrder >= 0 appear after or between games	VERIFIED	Tests flatten_gamesGetSortOrderFromTime* pass; games have sortOrder 100+minutes
4	Day headers always appear first in each day's section	VERIFIED	Test flatten_dayHeaderAlwaysFirst passes; ItineraryFlattener.swift:58 appends header first
5	Same semantic state produces identical row order	VERIFIED	Test success_sameStateProducesIdenticalOrder passes
6	Item with sortOrder -1.0 appears before all games	VERIFIED	Test success_negativeSortOrderAppearsBeforeGames explicitly tests this
7	Reordering an item and re-flattening preserves new order	VERIFIED	Test success_reorderPreservesNewOrder passes

Score: 7/7 truths verified

Required Artifacts

Artifact	Expected	Status	Details
SportsTime/Core/Models/Domain/ItineraryFlattener.swift	Pure flatten function	VERIFIED	124 lines, exports flatten(days:itineraryItems:gamesByDay:), no stubs
SportsTime/Features/Trip/Views/ItineraryTableViewController.swift	Refactored reloadData() using ItineraryFlattener	VERIFIED	Line 444 calls ItineraryFlattener.flatten(), no beforeGames/afterGames buckets
SportsTimeTests/Domain/ItineraryFlattenerTests.swift	Determinism and ordering tests	VERIFIED	765 lines, 13 tests, all pass

Key Link Verification

From	To	Via	Status	Details
ItineraryTableViewController.reloadData()	ItineraryFlattener.flatten()	function call	WIRED	Line 444 calls flattener with days, itineraryItems, gamesByDay
ItineraryFlattenerTests	ItineraryFlattener.flatten()	test assertions	WIRED	13 tests call flatten and verify output

Requirements Coverage

Requirement	Status	Evidence
FLAT-01: Visual flattening sorts by sortOrder within each day	SATISFIED	positioned.sort { $0.sortOrder < $1.sortOrder } at line 93
FLAT-02: Flattening is deterministic and stateless	SATISFIED	Pure function enum with no instance state; test confirms identical output
FLAT-03: sortOrder < 0 for "before games", >= 0 for "after/between games"	SATISFIED	Games get sortOrder 100+minutes; negative sortOrder items sort before

Anti-Patterns Found

File	Line	Pattern	Severity	Impact
None	-	-	-	No anti-patterns detected

Scanned files:

• ItineraryFlattener.swift: No TODO/FIXME/placeholder/stub patterns
• ItineraryTableViewController.swift: No beforeGames/afterGames bucket logic remains

Human Verification Required

None - all phase goals are verifiable programmatically through:

1. Code inspection (sortOrder-based sorting logic)
2. Automated tests (13 passing tests covering all success criteria)

Verification Summary

Phase 3 goal fully achieved:

1. ItineraryFlattener utility created - Pure function that transforms hierarchical day data into flat display rows sorted by sortOrder
2. reloadData() refactored - Now uses ItineraryFlattener.flatten() instead of bucket-based beforeGames/afterGames approach
3. Determinism verified - Same semantic state produces identical row order (tested)
4. sortOrder conventions enforced - Negative sortOrder items appear before games, positive after/between

The old bucket-based flattening code has been completely removed. The new implementation is pure, testable, and deterministic.

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Verified: 2026-01-18T22:30:00Z Verifier: Claude (gsd-verifier)