前四轮把契约当成运行时闸门铺开,复盘下来三块里只有一块是赚的:类型收拢成一份
(语言联合、Problem/Message/ContestRank 的重复派生)留着;另外两块退回来。
## 判题产物:读出侧不再校验
judgeCaseResultSchema 按采样键集收紧的结果,用根目录那份生产备份全量跑了一遍:
124192 条提交里 9163 条对不上,**RE 8480/8480、TLE 338/338+26、MLE 1/1 全中**,
另有 270 条 WA、47 条 AC。原因不是键集合,是空值和 SQL 链路:
- 沙箱在非正常退出的测试点上写 `output_md5: null`,契约写的是 z.string();
- SQL 判题(judge/sql/engine.ts 的 CaseResult)根本没有 `output` 键;
- SQL 通过的测试点 `error_message` 是 null,契约写的是 z.string().optional()。
更糟的是失败方式:`info` 是 `union([完整形状, z.object({})])`,对不上的一律落进
第二支被剥成 `{}` 且 parse 成功 —— 管理员详情页的测试点表格**静默消失**,无日志。
JSONB 的形状真相在写入侧(判题机),读出侧再校验一遍只会在两边分叉时丢数据。
所以 `info` 回到 z.unknown(),形状改用 JudgeInfo / JudgeCaseResult 两个 TS 类型
描述(按判题机实际写的形状,不是采样出来的),取值处由 submissionCaseResults()
做唯一需要的运行时判断:有没有 data 数组。statisticInfo 换成 looseObject ——
所有键可选、不剥未知键,对任何对象都不会失败,它的作用是给类型不是当闸门。
## 练一练:形状闸从读路径挪到写路径
exerciseSchema 的 superRefine 挂在读路径上,而这个 schema 后端也在 parse
(routes/content.ts),等于一行脏数据就能让整条学生练习列表 500。同时写入侧的
exerciseDataError **一次都没查过 question**,两边严紧度不一致,脏数据进得来出不去。
exerciseDataByType 保留,改由 exerciseDataError 在写入前查,错误信息按字段翻成
中文给老师看;读路径回到不校验。
## 运行时闸门收回三处
contract() 从 41 个端点收回到题目详情 / 提交详情 / 用户资料 —— 原本就写了
.parse() 的那三条。留着的理由是「别抛错」(原来 parse 抛 ZodError 会白屏、
后面的 as 又让校验白做),不是校验:前后端同仓、共享同一份 schema,字段漂移
tsc 已经抓了。闸门本身也瘦掉了没人读的 window.__OJ2_CONTRACT_DRIFT__ 那套簿记。
## 验证
- 生产备份全量:124192 条提交过 submissionDetailSchema / submissionListItemSchema
零失败,其中 112144 条能拿到测试点明细(另外 12048 条本来就是 data:null);
151 道练习读路径 151/151、写入闸 151/151(老师改旧题不会被新闸挡);
- 反向验证写入闸:缺题干的排序题被拒并给出「题干的格式不对」;
- 本地实跑:种一条生产形状的 RE 提交(output_md5: null),管理员详情接口原样
返回 info.data(改之前是 {});库里塞一行没有 options 的 mcq,学生端练习列表
照常返回两条而不是 500;
- vue-tsc / tsc -p apps/api 均 exit 0,vite build 通过,check:routes 无遮蔽。
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012j1vgeDqay8wKCh8dPgPcH
160 lines
6.9 KiB
Markdown
160 lines
6.9 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project Overview
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**OJ2 的前端**(`OJ2/apps/web`),代码从上一代 `ojnext/` 原样搬来、只替换了 API 层
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(`ojnext` 与 `../OnlineJudge` 都已下线且**完全冻结,一行都不改**)。Vue 3 + TypeScript,
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Vite(Rolldown 内核)、Naive UI、Pinia、Vue Router。
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**要兼容机房的老 Chrome(< 94)**:`vite.config.ts` 的 legacy 配置与
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`mermaid-legacy` 等 fallback 依赖不能动,理由写在该文件的注释里。
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## Commands
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```bash
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npm start # Start dev server on port 5173
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npm run build # Production build
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npm run build:staging # Staging build
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npm run build:test # Test build
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npm fmt # Format with Prettier
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```
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No test suite is configured. Linting is via Prettier only.
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## Architecture
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### Directory Structure
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```
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src/
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├── shared/ # Cross-cutting concerns: layout, stores, composables, API
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├── oj/ # User-facing features (problems, submissions, contests, etc.)
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├── admin/ # Admin panel features
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├── utils/ # Constants, types, HTTP client, helpers
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├── routes.ts # Route definitions (two top-level: ojs, admins)
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├── main.ts # App entry point
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└── App.vue # Root component with Naive UI theme setup
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```
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### Module Pattern
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Each feature module (under `oj/` or `admin/`) typically has:
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- `views/` — page-level Vue components
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- `components/` — feature-specific components
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- `api.ts` — API calls specific to the feature
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Shared logic lives in `shared/`:
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- `store/` — Pinia stores: `user` (auth/roles), `config` (site-wide settings), `authModal` (login/signup form state), `screenMode` (problem split-screen layout), `loginSummary` (AI activity summary), `collab` (help-request queue + collab room)
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- `composables/` — `pagination` (URL-synced), `websocket` (reconnect + heartbeat), `collabDoc` (Yjs binding for the collab channel), `configUpdate` (WS-pushed config sync), `useMermaid` (lazy Mermaid render), `breakpoints`, `maxkb`
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- `layout/` — `default.vue` and `admin.vue` layout wrappers
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- `api.ts` — shared API calls (auth, profile, tags, captcha)
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### Auto-Imports
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Configured via `unplugin-auto-import` and `unplugin-vue-components`. You do **not** need to manually import:
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- Vue APIs (`ref`, `computed`, `watch`, etc.)
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- Vue Router (`useRouter`, `useRoute`)
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- Pinia (`defineStore`, `storeToRefs`)
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- VueUse composables
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- Naive UI composables (`useDialog`, `useMessage`, `useNotification`, `useLoadingBar`)
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- Naive UI components (all `N*` components)
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- Naive UI types (`DataTableColumn`, `FormRules`, `FormItemRule`, `SelectOption`, `UploadCustomRequestOptions`, `UploadFileInfo`, `MenuOption`, `DropdownOption`)
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Generated type declaration files: `src/auto-imports.d.ts`, `src/components.d.ts`.
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### Path Aliases
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```
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utils → ./src/utils
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oj → ./src/oj
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admin → ./src/admin
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shared → ./src/shared
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```
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### HTTP Client
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`utils/api.ts` — Axios instance with interceptors (`baseURL: "/api"`,
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`withCredentials`). It unwraps both the axios envelope and the backend's
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`{ data }` envelope, so callers get the payload directly. All API calls proxy
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through the dev server (see `vite.config.ts`).
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### Contract guard (`utils/contract.ts`)
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`@oj2/contract` 的 zod schema 是**前后端唯一的形状来源**,`utils/types.ts` 只做
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`z.infer` 派生与少量前端专有的收窄(都写了理由)。
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运行时闸门**只挂三处**:题目详情、提交详情、`shared/api.ts` 的用户资料 ——
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原本就写了 `.parse()` 的那三条。留着它们的理由是**别抛错**,不是校验:
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```ts
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// 原来是 problemDetailSchema.parse(v) as Problem —— `as` 让校验白做,
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// 而 parse 抛错会让整个题目页白屏
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return contract("GET /problems/:id", problemDetailSchema, value)
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```
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失败时记一条控制台日志再**放行原始数据**,页面照常渲染。
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**不要把它铺到更多端点上。** 试过一次(41 个),收益是 41 次 safeParse 加一条
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没人读的 console.error:前后端同仓、共享同一份 schema,「后端改字段前端不知道」
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`tsc` 已经抓了。
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### 什么该收紧,什么不该
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**JSONB 原文(`submission.info` / `statistic_info` / `exercise.data`)不在读出侧
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校验。** 它们的形状真相在写入侧 —— 判题机、`services/exercise.ts`。在读出侧再收
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一遍的结果实测过两次:
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- `info` 按采样键集收紧后,124192 条提交里 9163 条(RE、TLE、MLE 全中)对不上,
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被 union 的空对象分支**静默剥成 `{}`**,管理员的测试点表格无声消失;
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- `exercise.data` 按题型收紧后,后端读路径(`routes/content.ts` 硬 parse)变成
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一道闸,一行脏数据能让整条练习列表 500。
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所以:**同一个 schema 后端也在 `parse`**(`submissionDetailSchema` /
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`exerciseSchema` / `contestRankItemSchema` 都是),收紧任何字段之前,拿根目录
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那份生产备份把全量数据跑一遍,尤其要看**空值**而不只是键集合。
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### Key Utilities
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- `utils/constants.ts` — Judge status codes, language IDs, difficulty levels, contest types
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- `utils/types.ts` — 契约类型的派生与前端专有收窄(不是手写的一份平行类型)
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- `utils/contract.ts` — 运行时契约闸门,见上
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- `utils/judge.ts` — Judge-related utilities
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- `utils/renders.ts` — Table column render helpers for Naive UI DataTable
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### Environment Variables
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Variables prefixed with `PUBLIC_` are injected at build time. Env files: `.env`, `.env.staging`, `.env.test`.
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| Variable | Purpose |
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|---|---|
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| `PUBLIC_OJ_URL` | Backend REST API base URL |
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| `PUBLIC_WS_URL` | WebSocket server URL |
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| `PUBLIC_ENV` | Environment name (dev/staging/production) |
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| `PUBLIC_CODE_URL` | Code execution service |
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| `PUBLIC_JUDGE0_URL` | Judge0 API |
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| `PUBLIC_MAXKB_URL` | Knowledge base service |
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| `PUBLIC_ICONIFY_URL` | Iconify icon CDN |
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### Routing
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Routes are defined in `src/routes.ts` with two root routes: `ojs` (user-facing) and `admins` (admin panel). Route meta fields used:
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- `requiresAuth` — redirect to login if not authenticated
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- `requiresSuperAdmin` — super admin only
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- `requiresProblemPermission` — problem management access
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### Real-time Features
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- WebSocket via composable in `shared/composables/` for submission status updates
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- Yjs over the `/ws/collab` channel for classroom help requests and collaborative
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code editing (students raise a hand, teachers join their editor). The server is a
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dumb relay — it authenticates, assigns rooms, and forwards frames without parsing
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them. See `docs/specs/2026-08-28-collab-help-request-design.md`.
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## Related Repository
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后端就在同一个仓库的 `../api`(Bun + Hono + Drizzle,编译成单二进制),
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契约在 `../../packages/contract`。**不要再去看 `OnlineJudge/`** —— 那是已下线的
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Django 后端,只作参照、完全冻结。详见 `../CLAUDE.md`。
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