refactor: contest label split by type - #4021
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Extract label generators from monolithic contest.ts into: - labels/axc.ts (ABC/ARC/AGC/ATC regex labels) - labels/universities.ts (AtCoder university contest labels) - labels/world_tour_finals.ts (WTF/AWTF labels) - labels/atcoder_others.ts (OTHERS fallback chain) - labels/joi.ts (JOI contest labels) - labels/past.ts (PAST contest labels + translations) - labels/aoj.ts (AOJ contest labels + translations) - labels/index.ts (LABEL_GENERATORS Map + getContestNameLabel) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Extract addContestNameToTaskIndex + isAojContest to task_index_label.ts - Split contest.test.ts into co-located test files: - priority.test.ts (contest priority tests) - labels/index.test.ts (contest name label tests) - labels/universities.test.ts (university label tests) - task_index_label.test.ts (task index label tests) - contest.ts is now a pure re-export module Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Create src/lib/contests/index.ts with public API re-exports - Update all imports from '$lib/contests/utils/contest' to '$lib/contests' - Update prisma/seed.ts to import from classification.ts directly - Remove monolithic contest.ts (all code now in split files) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- architecture.md: expand contests/ tree to show internal structure - how-to-add-contest-table-provider.md: classifyContest → classification.ts - add-contest-table-provider skill: update test/impl paths for split files Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughコンテスト処理を分類、ラベル、優先度、タスクインデックスのモジュールへ分割した。 Changesコンテスト処理の再構成
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🔵 Low · up to This refactor improves contest classification and labeling behavior, including safer invalid university-ID handling. Remaining risk is low: a documentation lint issue and two test/documentation coverage defects should be corrected to keep validation and future registry work reliable. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Inline comments:
In `@src/lib/contests/utils/classification.ts`:
- Line 58: Update the UNIVERSITY classification predicate in the visible
classification mapping so it matches only valid complete AtCoder university
contest IDs, not arbitrary IDs that merely start with a university prefix;
ensure utpc, utpc24, and utpc2023-extra are excluded, and add regression tests
covering these cases.
In `@src/lib/contests/utils/labels/aoj.ts`:
- Around line 42-63: getAojContestLabel と getAojUniversityContestLabel
の隣に、既存テストと重複しない未検証の変換分岐を対象とした単体テストを追加してください。入力値に対する固定された期待ラベルを直接検証し、翻訳置換、AOJ
接頭辞除去、各種大学コンテスト形式の変換を回帰検出できるようにしてください。
In `@src/lib/contests/utils/labels/atcoder_others.ts`:
- Line 8: Update the label resolution logic around regexForAxc so the
ATCODER_OTHERS fixed-label dictionary lookup runs before any regular-expression
matching; ensure contestId atc001 returns the configured fixed label from
prefixes.ts rather than ATC 001, while preserving the existing regex behavior
for other IDs.
In `@src/lib/contests/utils/labels/index.ts`:
- Line 21: LABEL_GENERATORS に ABC_LIKE、ARC_LIKE、AGC_LIKE
の各エントリを追加し、classifyContest
が返す各種別を既存の対応する表示名テーブルへ接続してください。各種別について、定義済みの表示名が生成される回帰テストも追加してください。
In `@src/lib/contests/utils/prefixes.ts`:
- Around line 115-126: Add adjacent unit tests for the utility functions in
prefixes.ts, including getPrefixForAojCourses and getContestPrefixes, and add
the requested prefixes.test.ts, axc.test.ts, and atcoder_others.test.ts files.
Cover untested input branches directly while avoiding unnecessary duplication of
cases already covered indirectly by classification.test.ts and
labels/index.test.ts.
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.claude/skills/add-contest-table-provider/instructions.mddocs/guides/architecture.mddocs/guides/how-to-add-contest-table-provider.mdprisma/seed.tssrc/features/tasks/utils/contest-table/abc_providers.tssrc/features/tasks/utils/contest-table/abs_provider.tssrc/features/tasks/utils/contest-table/acl_providers.tssrc/features/tasks/utils/contest-table/agc_provider.tssrc/features/tasks/utils/contest-table/arc_providers.tssrc/features/tasks/utils/contest-table/awc_provider.tssrc/features/tasks/utils/contest-table/axc_like_provider.tssrc/features/tasks/utils/contest-table/dp_providers.tssrc/features/tasks/utils/contest-table/fps24_provider.tssrc/features/tasks/utils/contest-table/joi_providers.test.tssrc/features/tasks/utils/contest-table/joi_providers.tssrc/features/tasks/utils/contest-table/math_and_algorithm_provider.tssrc/features/tasks/utils/contest-table/tessoku_book_providers.tssrc/features/tasks/utils/contest-table/typical90_provider.tssrc/features/workbooks/components/detail/WorkBookTasksTable.sveltesrc/lib/components/SubmissionStatus/UpdatingModal.sveltesrc/lib/components/TagForm.sveltesrc/lib/components/TaskForm.sveltesrc/lib/components/TaskList.sveltesrc/lib/components/TaskListSorted.sveltesrc/lib/contests/fixtures/contest_name_and_task_index.tssrc/lib/contests/fixtures/contest_type.tssrc/lib/contests/index.tssrc/lib/contests/utils/classification.test.tssrc/lib/contests/utils/classification.tssrc/lib/contests/utils/contest.test.tssrc/lib/contests/utils/contest.tssrc/lib/contests/utils/labels/aoj.tssrc/lib/contests/utils/labels/atcoder_others.tssrc/lib/contests/utils/labels/axc.tssrc/lib/contests/utils/labels/index.test.tssrc/lib/contests/utils/labels/index.tssrc/lib/contests/utils/labels/joi.tssrc/lib/contests/utils/labels/past.tssrc/lib/contests/utils/labels/universities.test.tssrc/lib/contests/utils/labels/universities.tssrc/lib/contests/utils/labels/world_tour_finals.tssrc/lib/contests/utils/prefixes.tssrc/lib/contests/utils/priority.test.tssrc/lib/contests/utils/priority.tssrc/lib/contests/utils/task_index_label.test.tssrc/lib/contests/utils/task_index_label.tssrc/lib/services/tasks.tssrc/lib/utils/task.tssrc/lib/utils/task_filter.tssrc/routes/(admin)/tasks/+page.server.tssrc/routes/(admin)/tasks/_components/TaskTableForImport.sveltesrc/routes/(admin)/tasks/grade/_components/TaskGradeTable.sveltesrc/routes/votes/+page.sveltesrc/routes/workbooks/[slug]/+page.svelte
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- src/lib/contests/utils/contest.ts
- src/lib/contests/utils/contest.test.ts
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Records design rationale for lib/contests placement, phase ordering, and the classifyContest/getContestNameLabel inconsistency discovered during implementation. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsXvZyoRTLyK1R1VGxYhGy
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsXvZyoRTLyK1R1VGxYhGy
Trim the plan to the decisions and pitfalls worth keeping now that all phases are complete. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsXvZyoRTLyK1R1VGxYhGy
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01XsXvZyoRTLyK1R1VGxYhGy
… cases - Split label generator tests into per-type files (aoj, axc, joi, past, atcoder_others) - Return null instead of throwing on unknown university contest ID format - Extract UNCLASSIFIED_CONTEST_PRIORITY constant; export LABEL_GENERATORS - Add fixtures for contest name labels Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TyKPCP1Q8e5NDKHQ6gSmZ8
- Ban tautological assertions where expected is computed by code under test - Add registry exhaustiveness runtime check with documented KNOWN_GAPS - Add dispatcher/handler domain rule (classifier must not out-match handler) - Add verify-test-strength skill (mutation-based test-detection proof) Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TyKPCP1Q8e5NDKHQ6gSmZ8
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Actionable comments posted: 3
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Inline comments:
In @.claude/rules/testing.md:
- Around line 43-44: Update the “Registry exhaustiveness” guidance in the
testing rules to separate the runtime assertion examples: use Map.has(key) for
Map registries, and use Object.hasOwn(REGISTRY, key) for Record<string, T>
registries. Preserve the existing enum-gap comparison and documented
exception-list requirement.
In @.claude/skills/verify-test-strength/SKILL.md:
- Line 7: Add the top-level heading “Verify Test Strength” before the existing
“Measure the detection power...” content in the skill document, making it the
first heading to satisfy markdownlint MD041.
In `@src/lib/contests/utils/labels/universities.test.ts`:
- Around line 15-17: Extend the invalid-format parameter table in
getAtCoderUniversityContestLabel tests to include "utpc" alongside "utpc24",
ensuring both inputs are verified to return null.
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.claude/rules/coding-style.md.claude/rules/testing.md.claude/skills/verify-test-strength/SKILL.md.claude/skills/verify-test-strength/instructions.mdsrc/lib/contests/fixtures/contest_name_labels.tssrc/lib/contests/utils/labels/aoj.test.tssrc/lib/contests/utils/labels/atcoder_others.test.tssrc/lib/contests/utils/labels/axc.test.tssrc/lib/contests/utils/labels/index.test.tssrc/lib/contests/utils/labels/index.tssrc/lib/contests/utils/labels/joi.test.tssrc/lib/contests/utils/labels/past.test.tssrc/lib/contests/utils/labels/universities.test.tssrc/lib/contests/utils/labels/universities.tssrc/lib/contests/utils/priority.test.tssrc/lib/contests/utils/priority.ts
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- Add all university prefixes and case-insensitive/invalid-format cases - Clarify Record-registry exhaustiveness assertion form in testing rule Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TyKPCP1Q8e5NDKHQ6gSmZ8
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Summary by CodeRabbit
新機能
ドキュメント
テスト
contest モジュール再編
src/lib/utils/contest.ts（826行）をsrc/lib/contests/に集約し、if hell を Map/Record ルックアップに置換、ラベル生成をコンテスト種別ごとにファイル分割。3フェーズ × 3ブランチ × 3 PR。全フェーズ完了済み。設計判断
配置:
src/lib/contests/（src/features/contests/ではなく）コンテスト分類・ラベル生成は tasks, workbooks, votes, admin の4+ feature から横断的に参照される共有ロジック。architecture.md の判定基準「複数の機能ドメインで使う →
lib/に配置」に該当。PR #3194 の workbooks 移動は単一ドメインだったが、contests は共通基盤。class ベースの Strategy パターンも検討したが、TypeScript では冗長。Map dispatch + 小関数群の方がテストしやすく tree-shaking にも有利。
フェーズ順序: ロジック変更（Phase 2）→ ファイル分割（Phase 3）
classifyContest/getContestNameLabelの内部構造が確定してから分割すれば二度手間を避けられるスコープ外
src/lib/clients/（API 通信層）: 別レイヤーなのでclients/に残すsrc/lib/utils/task.tsのgetTaskUrl/compareByContestIdAndTaskId: task 側の責務src/lib/utils/contest_task_pair.ts: タスク識別キー生成であり contest の責務ではないsrc/features/tasks/utils/contest-table/の provider 群: 既に適切に分割済み。import パスのみ更新実装時に発見した落とし穴
classifyContestとgetContestNameLabelの不整合Phase 2 以前、
getContestNameLabelはclassifyContestを経由せず、独自の if 連鎖で直接ラベルを生成していた。不整合の例:atc001:classifyContest→ContestType.OTHERSだが、getContestNameLabel→'ATC 001'（regexForAxcで先に捕捉）chokudai_S001:classifyContest→ContestType.OTHERSだが、getContestNameLabelではstartsWith('chokudai_S')分岐で'Chokudai SpeedRun 001'getContestNameLabelをclassifyContestの結果で dispatch する設計に変更した際、ContestType.OTHERSのラベル生成関数にフォールバックチェーンを組み込んで解決:regexForAxcによる ATC 形式チェックchokudai_Sprefix マッチcontestId.toUpperCase()フォールバックリスクと対策
pnpm buildで検出index.tsは公開 API のみ re-export。内部ファイル間は直接 import を使い barrel を経由しないリファクタ内容の要約
CodeRabbit の 5 指摘に対する批判的レビューから始まり、指摘の 2 件を却下・1 件を修正・2 件を再定義したうえで、レビューが見ていなかったテストの空洞化を主題に据えた作業になった。
本番コードの変更（3 ファイル・小さい）
ファイル | 変更 | 理由 -- | -- | -- labels/universities.ts | throw → null 返却 | 分類器が startsWith('utpc') で通す ID を、ラベル生成器が厳格な正規表現で拒否して例外送出。utpc / utpc24 で表示パスがクラッシュしていた labels/index.ts | LABEL_GENERATORS を export | 網羅性テストのため priority.ts | UNCLASSIFIED_CONTEST_PRIORITY を抽出・export | 本番とテストに 10 ** 3 が重複していた行数もテスト数も減ったが、変異解析で検知力は同等以上を確認済み。
検出した実バグ・空洞（すべて staging 由来、本ブランチの regression ではない）
リファクタ内容の要約 CodeRabbit の 5 指摘に対する批判的レビューから始まり、指摘の 2 件を却下・1 件を修正・2 件を再定義したうえで、レビューが見ていなかったテストの空洞化を主題に据えた作業になった。getContestNameLabel('utpc')が例外送出 → 修正済みABC_LIKE/ARC_LIKE/AGC_LIKEの表示名 31 件がLABEL_GENERATORSに未接続 → DB 移行 PR へ申し送り、除外リストで明示化ContestType.ABSも未接続（toUpperCase()が偶然正解を出していた）→ 網羅性テストが検出priority.test.ts281 件が全部トートロジー → 優先度をABS=999, AOJ_UNIVERSITY=0に破壊しても全通過していたcontest_name_and_task_index.tsの fixture 4 箇所が期待値を本番関数で計算 → PAST / JOI / UNIVERSITY / AOJ_COURSES のラベルがどこでも検証されていなかったisAojContestがclassifyContestと別規則で AOJ 判定を再実装（PCKfoo→"AOJ 1PCKFOO"）→ 保留本番コードの変更（3 ファイル・小さい）
ファイル 変更 理由
labels/universities.ts throw → null 返却 分類器が startsWith('utpc') で通す ID を、ラベル生成器が厳格な正規表現で拒否して例外送出。utpc / utpc24 で表示パスがクラッシュしていた
labels/index.ts LABEL_GENERATORS を export 網羅性テストのため
priority.ts UNCLASSIFIED_CONTEST_PRIORITY を抽出・export 本番とテストに 10 ** 3 が重複していた
テストの変更（本題）
before after
labels/ 隣接テスト 1 ファイル / 5 件 6 ファイル / 126 件
priority.test.ts 281 件 14 件
src/lib/contests/ 合計 1088 件 892 件
行数もテスト数も減ったが、変異解析で検知力は同等以上を確認済み。
検出した実バグ・空洞（すべて staging 由来、本ブランチの regression ではない）
getContestNameLabel('utpc') が例外送出 → 修正済み
ABC_LIKE / ARC_LIKE / AGC_LIKE の表示名 31 件が LABEL_GENERATORS に未接続 → DB 移行 PR へ申し送り、除外リストで明示化
ContestType.ABS も未接続（toUpperCase() が偶然正解を出していた）→ 網羅性テストが検出
priority.test.ts 281 件が全部トートロジー → 優先度を ABS=999, AOJ_UNIVERSITY=0 に破壊しても全通過していた
contest_name_and_task_index.ts の fixture 4 箇所が期待値を本番関数で計算 → PAST / JOI / UNIVERSITY / AOJ_COURSES のラベルがどこでも検証されていなかった
isAojContest が classifyContest と別規則で AOJ 判定を再実装（PCKfoo → "AOJ 1PCKFOO"）→ 保留
テストが減少している理由と正当性
281件は入力が281個あっただけで、主張は1個だった。
アサーションが getContestPriority(id) と contestTypePriorities.get(expected) の比較で、両辺が同じマップを通るため約分され、実質 classifyContest(id) === expected しか言っていない。それは classification.test.ts が同じ fixture で既にやっている。優先度の数値・並び順・フォールバックには一切触れていなかった。
実測: 優先度を ABS=999, AOJ_UNIVERSITY=0 に破壊しても 281件は全通過、14件では3〜4件が検知。
14件側は、281件が一度も述べていなかった主張（実IDの表示順、一意性、全型の登録、INF フォールバック）を新たに固定している。減ったのは重複だけ。