diff --git a/apps/api/src/db/0023_add_class_lesson.sql b/apps/api/src/db/0023_add_class_lesson.sql new file mode 100644 index 0000000..6720b83 --- /dev/null +++ b/apps/api/src/db/0023_add_class_lesson.sql @@ -0,0 +1,12 @@ +CREATE TABLE "class_lesson" ( + "id" integer PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY (sequence name "class_lesson_id_seq" INCREMENT BY 1 MINVALUE 1 MAXVALUE 2147483647 START WITH 1 CACHE 1), + "class_name" text NOT NULL, + "day" text NOT NULL, + "problem_ids" jsonb NOT NULL, + "created_by" integer NOT NULL, + "updated_at" timestamp with time zone NOT NULL, + CONSTRAINT "class_lesson_class_day_unique" UNIQUE("class_name","day") +); +--> statement-breakpoint +ALTER TABLE "class_lesson" ADD CONSTRAINT "class_lesson_created_by_fk_user_id" FOREIGN KEY ("created_by") REFERENCES "public"."user"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint +CREATE INDEX "class_lesson_created_by_idx" ON "class_lesson" USING btree ("created_by"); \ No newline at 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"problem_permission": { + "name": "problem_permission", + "type": "text", + "primaryKey": false, + "notNull": true + }, + "raw_password": { + "name": "raw_password", + "type": "varchar(20)", + "primaryKey": false, + "notNull": false + }, + "class_name": { + "name": "class_name", + "type": "text", + "primaryKey": false, + "notNull": false + } + }, + "indexes": { + "user_active_idx": { + "name": "user_active_idx", + "columns": [ + { + "expression": "is_disabled", + "isExpression": false, + "asc": true, + "nulls": "last" + }, + { + "expression": "last_login", + "isExpression": false, + "asc": false, + "nulls": "first" + } + ], + "isUnique": false, + "concurrently": false, + "method": "btree", + "with": {} + }, + "user_class_name_idx": { + "name": "user_class_name_idx", + "columns": [ + { + "expression": "class_name", + "isExpression": false, + "asc": true, + "nulls": "last" + } + ], + "isUnique": false, + "concurrently": false, + "method": "btree", + "with": {} + } + }, + "foreignKeys": 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"notNull": true + }, + "user_id": { + "name": "user_id", + "type": "integer", + "primaryKey": false, + "notNull": true + } + }, + "indexes": { + "user_badge_badge_id_92a983e9": { + "name": "user_badge_badge_id_92a983e9", + "columns": [ + { + "expression": "badge_id", + "isExpression": false, + "asc": true, + "nulls": "last", + "opclass": "int8_ops" + } + ], + "isUnique": false, + "concurrently": false, + "method": "btree", + "with": {} + } + }, + "foreignKeys": { + "user_badge_badge_id_92a983e9_fk_problemset_badge_id": { + "name": "user_badge_badge_id_92a983e9_fk_problemset_badge_id", + "tableFrom": "user_badge", + "tableTo": "problemset_badge", + "columnsFrom": [ + "badge_id" + ], + "columnsTo": [ + "id" + ], + "onDelete": "cascade", + "onUpdate": "no action" + }, + "user_badge_user_id_a286d718_fk_user_id": { + "name": "user_badge_user_id_a286d718_fk_user_id", + "tableFrom": "user_badge", + "tableTo": "user", + "columnsFrom": [ + "user_id" + ], + "columnsTo": [ + "id" + ], + "onDelete": "no action", + "onUpdate": "no action" + } + }, + "compositePrimaryKeys": {}, + "uniqueConstraints": { + "unique_user_badge": { + "name": "unique_user_badge", + "nullsNotDistinct": false, + "columns": [ + "badge_id", + "user_id" + ] + } + }, + "policies": {}, + "checkConstraints": {}, + "isRLSEnabled": false + }, + "public.user_profile": { + "name": "user_profile", + "schema": "", + "columns": { + "id": { + "name": "id", + "type": "serial", + "primaryKey": true, + "notNull": true + }, + "acm_problems_status": { + "name": "acm_problems_status", + "type": "jsonb", + "primaryKey": false, + "notNull": true, + "default": "'{}'::jsonb" + }, + "avatar": { + "name": "avatar", + "type": "text", + "primaryKey": false, + "notNull": true + }, + "mood": { + "name": "mood", + "type": "text", + "primaryKey": false, + "notNull": false + }, + "accepted_number": { + "name": "accepted_number", + "type": "integer", + "primaryKey": false, + "notNull": true, + "default": 0 + }, + "submission_number": { + "name": "submission_number", + "type": "integer", + "primaryKey": false, + "notNull": true, + "default": 0 + }, + "user_id": { + "name": "user_id", + "type": "integer", + "primaryKey": false, + "notNull": true + }, + "real_name": { + "name": "real_name", + "type": "text", + "primaryKey": false, + "notNull": false + } + }, + "indexes": {}, + "foreignKeys": { + "user_profile_user_id_8fdce8e2_fk_user_id": { + "name": "user_profile_user_id_8fdce8e2_fk_user_id", + "tableFrom": "user_profile", + "tableTo": "user", + "columnsFrom": [ + "user_id" + ], + "columnsTo": [ + "id" + ], + "onDelete": "cascade", + "onUpdate": "no action" + } + }, + "compositePrimaryKeys": {}, + "uniqueConstraints": { + "user_profile_user_id_key": { + "name": "user_profile_user_id_key", + "nullsNotDistinct": false, + "columns": [ + "user_id" + ] + } + }, + "policies": {}, + "checkConstraints": {}, + "isRLSEnabled": false + }, + "public.user_stat": { + "name": "user_stat", + "schema": "", + "columns": { + "id": { + "name": "id", + "type": "bigint", + "primaryKey": true, + "notNull": true, + "identity": { + "type": "byDefault", + "name": "user_stat_id_seq", + "schema": "public", + "increment": "1", + "startWith": "1", + "minValue": "1", + "maxValue": "9223372036854775807", + "cache": "1", + "cycle": false + } + }, + "metrics": { + "name": "metrics", + "type": "jsonb", + "primaryKey": false, + "notNull": true, + "default": "'{}'::jsonb" + }, + "update_time": { + "name": "update_time", + "type": "timestamp with time zone", + "primaryKey": false, + "notNull": true + }, + "user_id": { + "name": "user_id", + "type": "integer", + "primaryKey": false, + "notNull": true + } + }, + "indexes": {}, + "foreignKeys": { + "user_stat_user_id_73337fc0_fk_user_id": { + "name": "user_stat_user_id_73337fc0_fk_user_id", + "tableFrom": "user_stat", + "tableTo": "user", + "columnsFrom": [ + "user_id" + ], + "columnsTo": [ + "id" + ], + "onDelete": "cascade", + "onUpdate": "no action" + } + }, + "compositePrimaryKeys": {}, + "uniqueConstraints": { + "user_stat_user_id_key": { + "name": "user_stat_user_id_key", + "nullsNotDistinct": false, + "columns": [ + "user_id" + ] + } + }, + "policies": {}, + "checkConstraints": {}, + "isRLSEnabled": false + } + }, + "enums": {}, + "schemas": {}, + "sequences": {}, + "roles": {}, + "policies": {}, + "views": {}, + "_meta": { + "columns": {}, + "schemas": {}, + "tables": {} + } +} \ No newline at end of file diff --git a/apps/api/src/db/meta/_journal.json b/apps/api/src/db/meta/_journal.json index c07a6e3..e7ce919 100644 --- a/apps/api/src/db/meta/_journal.json +++ b/apps/api/src/db/meta/_journal.json @@ -162,6 +162,13 @@ "when": 1790512513639, "tag": "0022_add_tag_category", "breakpoints": true + }, + { + "idx": 23, + "version": "7", + "when": 1790519287984, + "tag": "0023_add_class_lesson", + "breakpoints": true } ] } \ No newline at end of file diff --git a/apps/api/src/db/schema.ts b/apps/api/src/db/schema.ts index 543a0e0..585ab1f 100644 --- a/apps/api/src/db/schema.ts +++ b/apps/api/src/db/schema.ts @@ -1449,3 +1449,47 @@ export const exerciseAttempt = pgTable( }).onDelete("cascade"), ], ) + +/** + * 老师给某个班「这节课」布置的题（课堂看板里输入的题号），一个班一天一行。 + * + * 学生首页的「班里在做」优先读它，没有才退回从提交记录推断（routes/classroom.ts）。 + * 推断在上课头几分钟是空的 —— 还没人交 —— 而这正是没听清题号的学生最需要它的时候。 + * + * - `day` 是**东八区日历日**文本（`calendarDay()` 写的 `YYYY-MM-DD`），不用 date 列： + * 「哪一天」的口径只在 time.ts 一处定，不交给驱动和会话时区去解释。 + * - `problem_ids` 按老师输入的顺序存 problem.id。**不挂外键**（jsonb 挂不了）， + * 读的时候按 visible 过滤，题目被删、被藏的自然不出现；写的时候校验过都存在。 + * - `created_by` CASCADE：备课记录不是「学生做过什么」的证据，老师账号没了它也没有意义 + * （外键分档见 CLAUDE.md「数据库」一节）。 + */ +export const classLesson = pgTable( + "class_lesson", + { + id: integer().primaryKey().generatedByDefaultAsIdentity({ + name: "class_lesson_id_seq", + startWith: 1, + increment: 1, + minValue: 1, + maxValue: 2147483647, + cache: 1, + }), + className: text("class_name").notNull(), + day: text().notNull(), + problemIds: jsonb("problem_ids").notNull().$type(), + createdBy: integer("created_by").notNull(), + updatedAt: timestamp("updated_at", { + withTimezone: true, + mode: "string", + }).notNull(), + }, + (table) => [ + unique("class_lesson_class_day_unique").on(table.className, table.day), + index("class_lesson_created_by_idx").on(table.createdBy), + foreignKey({ + columns: [table.createdBy], + foreignColumns: [user.id], + name: "class_lesson_created_by_fk_user_id", + }).onDelete("cascade"), + ], +) diff --git a/apps/api/src/routes/classroom.ts b/apps/api/src/routes/classroom.ts index 4f92c44..f5aa0f5 100644 --- a/apps/api/src/routes/classroom.ts +++ b/apps/api/src/routes/classroom.ts @@ -1,21 +1,24 @@ import { classComparisonRequestSchema, STUDENT_ROLES, + classLessonRequestSchema, type ClassActivity, + type ClassBoard, + type ClassBoardStudent, type ClassActivityProblem, type ClassComparison, type ClassComparisonResponse, type ClassRankItem, type ClassUserRank, } from "@oj2/contract" -import { and, eq, gte, inArray, isNull, like, lte, sql } from "drizzle-orm" +import { and, desc, eq, gte, inArray, isNotNull, isNull, like, lte, sql } from "drizzle-orm" import { Hono } from "hono" -import { requireAuth, type AppEnv } from "../auth/middleware" +import { requireAuth, requireTeacher, type AppEnv } from "../auth/middleware" import { db, schema } from "../db" import { failure, parseBody, success } from "../http" import { JudgeStatus } from "../judge/status" -import { dayStart, localTime } from "../time" +import { calendarDay, dayStart, localTime } from "../time" import { queryInteger, rounded } from "./helpers" export const classroomRoutes = new Hono() @@ -156,23 +159,27 @@ const CLASS_ACTIVITY_LIMIT = 8 /** AST_CHECK_FAILED 也是答案对了，与周榜同口径 */ const SOLVED_RESULTS = [JudgeStatus.ACCEPTED, JudgeStatus.AST_CHECK_FAILED] -/** - * 班里最近一次「一起做」的那几道题。课上老师报题号、全班去找 —— 这是 2025 秋 - * 七成非比赛提交的来路，但界面上原本没有它的入口，没听清题号的只能问同桌。 - * - * 只取最近的**一天**，不把 7 天摊平：摊平了就是一张越来越长的旧题单， - * 「现在该做哪道」反而看不出来。题按那天第一次有人提交的时间排，大致就是老师点题的顺序。 - */ -classroomRoutes.get("/me/class-activity", requireAuth, async (c) => { - const user = c.get("user")! - if (!user.className) { - return success(c, { className: null, day: null, problems: [] } satisfies ClassActivity) - } +interface ClassDayGroup { + day: string + problemId: number + firstAt: string + userCount: number + acceptedCount: number +} - const since = dayStart(Date.now() - (CLASS_ACTIVITY_LOOKBACK_DAYS - 1) * 86_400_000) +/** + * 某个班从 `since` 起、按（东八区日, 题）分组的做题人数和通过人数。只算正常状态的学生， + * 不含比赛提交。`minUsers` 是「班里在做」的门槛，给了 `problemIds`（老师布置的题）时 + * 不设门槛 —— 那几道题是确定的，一个人都没交也要列出来。 + */ +async function classDayGroups( + className: string, + since: string, + options: { minUsers?: number; problemIds?: number[] } = {}, +): Promise { const day = sql`to_char(${localTime(schema.submission.createTime)}, 'YYYY-MM-DD')` const userCount = sql`count(distinct ${schema.submission.userId})::int` - const groups = await db + const query = db .select({ day, problemId: schema.submission.problemId, @@ -186,14 +193,83 @@ classroomRoutes.get("/me/class-activity", requireAuth, async (c) => { and( isNull(schema.submission.contestId), gte(schema.submission.createTime, since), - eq(schema.user.className, user.className), + eq(schema.user.className, className), eq(schema.user.isDisabled, false), inArray(schema.user.adminType, [...STUDENT_ROLES]), + options.problemIds ? inArray(schema.submission.problemId, options.problemIds) : undefined, ), ) .groupBy(day, schema.submission.problemId) - .having(sql`${userCount} >= ${CLASS_ACTIVITY_MIN_USERS}`) + return options.minUsers ? query.having(sql`${userCount} >= ${options.minUsers}`) : query +} +/** 按 id 取题，只留学生看得见的（题库里、visible），被藏起来的点进去也是 404 */ +async function visibleProblems(ids: number[]) { + if (!ids.length) return new Map() + const rows = await db + .select({ + id: schema.problem.id, + displayId: schema.problem.displayId, + title: schema.problem.title, + }) + .from(schema.problem) + .where( + and( + inArray(schema.problem.id, ids), + eq(schema.problem.visible, true), + isNull(schema.problem.contestId), + ), + ) + return new Map(rows.map((row) => [row.id, row])) +} + +/** 老师给这个班今天布置的题（problem.id，按输入顺序）；没布置为 null */ +async function lessonProblemIds(className: string, day: string) { + const [row] = await db + .select({ problemIds: schema.classLesson.problemIds }) + .from(schema.classLesson) + .where(and(eq(schema.classLesson.className, className), eq(schema.classLesson.day, day))) + .limit(1) + return row?.problemIds.length ? row.problemIds : null +} + +/** + * 班里「这节课」的题。老师在课堂看板布置过就用老师的（source = teacher）， + * 否则从同班提交记录推断（source = inferred）：同班同一天 ≥ 5 人做过的题，只取最近的 + * **一天**、按那天第一次有人提交的时间排 —— 大致就是老师点题的顺序。 + * + * 老师布置的优先，是因为推断在上课头几分钟是空的（还没人交），而那正是没听清题号的 + * 学生最需要它的时候。 + */ +async function classLessonProblems(className: string, lookbackDays: number) { + const today = calendarDay() + const planned = await lessonProblemIds(className, today) + if (planned) { + const [problems, groups] = await Promise.all([ + visibleProblems(planned), + classDayGroups(className, dayStart(), { problemIds: planned }), + ]) + const groupById = new Map(groups.map((row) => [row.problemId, row])) + return { + source: "teacher" as const, + day: today, + problems: planned.flatMap((id) => { + const problem = problems.get(id) + if (!problem) return [] + const group = groupById.get(id) + return [ + { + ...problem, + userCount: group?.userCount ?? 0, + acceptedCount: group?.acceptedCount ?? 0, + }, + ] + }), + } + } + + const since = dayStart(Date.now() - (lookbackDays - 1) * 86_400_000) + const groups = await classDayGroups(className, since, { minUsers: CLASS_ACTIVITY_MIN_USERS }) const latest = groups.reduce( (acc, row) => (!acc || row.day > acc ? row.day : acc), null, @@ -202,69 +278,266 @@ classroomRoutes.get("/me/class-activity", requireAuth, async (c) => { .filter((row) => row.day === latest) .sort((a, b) => a.firstAt.localeCompare(b.firstAt)) .slice(0, CLASS_ACTIVITY_LIMIT) - if (!picked.length) { + const problems = await visibleProblems(picked.map((row) => row.problemId)) + return { + source: picked.length ? ("inferred" as const) : null, + day: picked.length ? latest : null, + problems: picked.flatMap((row) => { + const problem = problems.get(row.problemId) + return problem + ? [{ ...problem, userCount: row.userCount, acceptedCount: row.acceptedCount }] + : [] + }), + } +} + +/** + * 学生首页的「班里在做」。课上老师报题号、全班去找 —— 这是 2025 秋七成非比赛提交的 + * 来路，但界面上原本没有它的入口，没听清题号的只能问同桌。 + */ +classroomRoutes.get("/me/class-activity", requireAuth, async (c) => { + const user = c.get("user")! + if (!user.className) { return success(c, { - className: user.className, + className: null, day: null, + source: null, problems: [], } satisfies ClassActivity) } - const ids = picked.map((row) => row.problemId) - const [problems, mine] = await Promise.all([ - // 题目后来被藏起来的就不列了，点进去也是 404 - db - .select({ - id: schema.problem.id, - displayId: schema.problem.displayId, - title: schema.problem.title, - }) - .from(schema.problem) - .where( - and( - inArray(schema.problem.id, ids), - eq(schema.problem.visible, true), - isNull(schema.problem.contestId), - ), - ), - db - .select({ - problemId: schema.submission.problemId, - accepted: sql`bool_or(${inArray(schema.submission.result, SOLVED_RESULTS)})`, - }) - .from(schema.submission) - .where( - and( - eq(schema.submission.userId, user.id), - inArray(schema.submission.problemId, ids), - isNull(schema.submission.contestId), - ), - ) - .groupBy(schema.submission.problemId), - ]) - const problemById = new Map(problems.map((row) => [row.id, row])) + const lesson = await classLessonProblems(user.className, CLASS_ACTIVITY_LOOKBACK_DAYS) + const ids = lesson.problems.map((problem) => problem.id) + const mine = ids.length + ? await db + .select({ + problemId: schema.submission.problemId, + accepted: sql`bool_or(${inArray(schema.submission.result, SOLVED_RESULTS)})`, + }) + .from(schema.submission) + .where( + and( + eq(schema.submission.userId, user.id), + inArray(schema.submission.problemId, ids), + isNull(schema.submission.contestId), + ), + ) + .groupBy(schema.submission.problemId) + : [] const mineById = new Map(mine.map((row) => [row.problemId, row.accepted])) return success(c, { className: user.className, - day: latest, - problems: picked.flatMap((row) => { - const problem = problemById.get(row.problemId) - if (!problem) return [] - const accepted = mineById.get(row.problemId) - return [ - { - problemDisplayId: problem.displayId, - title: problem.title, - userCount: row.userCount, - acceptedCount: row.acceptedCount, - myStatus: accepted === undefined ? "none" : accepted ? "accepted" : "tried", - } satisfies ClassActivityProblem, - ] + day: lesson.day, + source: lesson.source, + problems: lesson.problems.map((problem) => { + const accepted = mineById.get(problem.id) + return { + problemDisplayId: problem.displayId, + title: problem.title, + userCount: problem.userCount, + acceptedCount: problem.acceptedCount, + myStatus: accepted === undefined ? "none" : accepted ? "accepted" : "tried", + } satisfies ClassActivityProblem }), } satisfies ClassActivity) }) +/** 看板没指定班级时，猜「最近这么久里提交人数最多的班」—— 老师多半正在上这个班的课 */ +const ACTIVE_CLASS_WINDOW_MS = 2 * 60 * 60 * 1000 + +/** + * 从实际提交猜正在上课的班，而**不是记住老师上次选的**：统计面板吃过那个亏（上一节课 + * 的班悄悄留在框里，老师看的整个是别人的班，见 StatisticsPanel.vue 的注释）。 + */ +async function suggestActiveClass() { + const users = sql`count(distinct ${schema.submission.userId})::int` + const [row] = await db + .select({ className: schema.user.className, users }) + .from(schema.submission) + .innerJoin(schema.user, eq(schema.user.id, schema.submission.userId)) + .where( + and( + gte( + schema.submission.createTime, + new Date(Date.now() - ACTIVE_CLASS_WINDOW_MS).toISOString(), + ), + isNull(schema.submission.contestId), + isNotNull(schema.user.className), + eq(schema.user.isDisabled, false), + inArray(schema.user.adminType, [...STUDENT_ROLES]), + ), + ) + .groupBy(schema.user.className) + .orderBy(desc(users)) + .limit(1) + return row?.className ?? null +} + +/** + * 课堂看板：这个班、今天、这节课的几道题 × 全班学生。老师在课上用它看谁还没开始、 + * 谁卡住了 —— 2025 秋平均每节课有 14 个平时在用的学生一道都没交（占三分之一）， + * 而交了 3 次以上还没过的平均不到 1 个，所以「还没开始」才是这张表的重点，排序在前端。 + */ +classroomRoutes.get("/classroom/board", requireTeacher, async (c) => { + const day = calendarDay() + const className = c.req.query("className")?.trim() || (await suggestActiveClass()) + if (!className) { + return success(c, { + className: null, + day, + source: null, + problems: [], + students: [], + } satisfies ClassBoard) + } + + // 推断只看今天（回看 1 天）：看板是给这节课用的，昨天的题不该冒出来 + const lesson = await classLessonProblems(className, 1) + const ids = lesson.problems.map((problem) => problem.id) + const start = dayStart() + + const roster = await db + .select({ + userId: schema.user.id, + username: schema.user.username, + realName: schema.userProfile.realName, + }) + .from(schema.user) + .leftJoin(schema.userProfile, eq(schema.userProfile.userId, schema.user.id)) + .where( + and( + eq(schema.user.className, className), + eq(schema.user.isDisabled, false), + inArray(schema.user.adminType, [...STUDENT_ROLES]), + ), + ) + const userIds = roster.map((row) => row.userId) + + const [cells, lastSubmits] = await Promise.all([ + ids.length && userIds.length + ? db + .select({ + userId: schema.submission.userId, + problemId: schema.submission.problemId, + attempts: sql`count(*) filter (where ${gte(schema.submission.createTime, start)})::int`, + firstAcceptedAt: sql< + string | null + >`min(${schema.submission.createTime}) filter (where ${inArray(schema.submission.result, SOLVED_RESULTS)})`, + }) + .from(schema.submission) + .where( + and( + isNull(schema.submission.contestId), + inArray(schema.submission.userId, userIds), + inArray(schema.submission.problemId, ids), + ), + ) + .groupBy(schema.submission.userId, schema.submission.problemId) + : [], + userIds.length + ? db + .select({ + userId: schema.submission.userId, + lastAt: sql`max(${schema.submission.createTime})`, + }) + .from(schema.submission) + .where( + and( + inArray(schema.submission.userId, userIds), + gte(schema.submission.createTime, start), + ), + ) + .groupBy(schema.submission.userId) + : [], + ]) + const cellByKey = new Map(cells.map((row) => [`${row.userId}:${row.problemId}`, row])) + const lastByUser = new Map(lastSubmits.map((row) => [row.userId, row.lastAt])) + + return success(c, { + className, + day, + source: lesson.source, + problems: lesson.problems.map((problem) => ({ + problemId: problem.id, + problemDisplayId: problem.displayId, + title: problem.title, + })), + students: roster.map( + (student) => + ({ + userId: student.userId, + username: student.username, + realName: student.realName ?? null, + cells: ids.map((id) => { + const cell = cellByKey.get(`${student.userId}:${id}`) + return { + status: !cell ? "none" : cell.firstAcceptedAt ? "accepted" : "tried", + attempts: cell?.attempts ?? 0, + acceptedAt: cell?.firstAcceptedAt ?? null, + } + }), + lastSubmitAt: lastByUser.get(student.userId) ?? null, + }) satisfies ClassBoardStudent, + ), + } satisfies ClassBoard) +}) + +/** + * 老师给这个班布置今天的题。按展示题号给、不分大小写，存 problem.id 并保留输入顺序； + * 有对不上的题号就整个拒掉并点名是哪几个，免得存下半张单子老师还不知道。空数组 = 清掉， + * 学生那边退回推断。 + */ +classroomRoutes.put("/classroom/lesson", requireTeacher, async (c) => { + const parsed = await parseBody(c, classLessonRequestSchema, "题号格式不对") + if (!parsed.success) return parsed.response + const user = c.get("user")! + const { className, problemDisplayIds } = parsed.data + const day = calendarDay() + + const [exists] = await db + .select({ id: schema.user.id }) + .from(schema.user) + .where(eq(schema.user.className, className)) + .limit(1) + if (!exists) return failure(c, 400, "class-not-found", `没有 ${className} 这个班`) + + if (!problemDisplayIds.length) { + await db + .delete(schema.classLesson) + .where(and(eq(schema.classLesson.className, className), eq(schema.classLesson.day, day))) + return success(c, null) + } + + const wanted = [...new Set(problemDisplayIds.map((id) => id.toLowerCase()))] + const found = await db + .select({ id: schema.problem.id, displayId: schema.problem.displayId }) + .from(schema.problem) + .where( + and( + inArray(sql`lower(${schema.problem.displayId})`, wanted), + eq(schema.problem.visible, true), + isNull(schema.problem.contestId), + ), + ) + const idByDisplay = new Map(found.map((row) => [row.displayId.toLowerCase(), row.id])) + const missing = wanted.filter((id) => !idByDisplay.has(id)) + if (missing.length) { + return failure(c, 400, "problem-not-found", `这些题号不存在或没有公开：${missing.join("、")}`) + } + + const problemIds = wanted.map((id) => idByDisplay.get(id)!) + const now = new Date().toISOString() + await db + .insert(schema.classLesson) + .values({ className, day, problemIds, createdBy: user.id, updatedAt: now }) + .onConflictDoUpdate({ + target: [schema.classLesson.className, schema.classLesson.day], + set: { problemIds, createdBy: user.id, updatedAt: now }, + }) + return success(c, null) +}) + classroomRoutes.post("/classes/comparison", async (c) => { const parsed = await parseBody(c, classComparisonRequestSchema, "At least one class is required") if (!parsed.success) return parsed.response diff --git a/apps/web/src/oj/api.ts b/apps/web/src/oj/api.ts index b5474ad..8b5f041 100644 --- a/apps/web/src/oj/api.ts +++ b/apps/web/src/oj/api.ts @@ -9,6 +9,7 @@ import { type Metrics, type TutorialSummary, type ClassActivity, + type ClassBoard, type ClassComparisonResponse, type ClassRankItem, type ClassUserRank, @@ -217,6 +218,16 @@ export function getWeeklyRank(scope: "global" | "class") { return api.get("rankings/weekly", { params: { scope } }) } +/** 课堂看板（老师）。不给班级时后端猜最近两小时在交题的那个班 */ +export function getClassBoard(className?: string) { + return api.get("classroom/board", { params: { className } }) +} + +/** 给这个班布置今天的题，空数组 = 清掉 */ +export function setClassLesson(className: string, problemDisplayIds: string[]) { + return api.put("classroom/lesson", { className, problemDisplayIds }) +} + export function getClassActivity() { return api.get("me/class-activity") } diff --git a/apps/web/src/oj/classroom/board.vue b/apps/web/src/oj/classroom/board.vue new file mode 100644 index 0000000..cf21a5a --- /dev/null +++ b/apps/web/src/oj/classroom/board.vue @@ -0,0 +1,405 @@ + + + + + diff --git a/apps/web/src/oj/home/dashboard.vue b/apps/web/src/oj/home/dashboard.vue index ddf7082..98f379b 100644 --- a/apps/web/src/oj/home/dashboard.vue +++ b/apps/web/src/oj/home/dashboard.vue @@ -131,6 +131,8 @@ const classActivityTitle = computed(() => { if (!day) return "" const now = zonedParts(new Date())! const today = `${now.year}-${String(now.month).padStart(2, "0")}-${String(now.day).padStart(2, "0")}` + // 老师在课堂看板布置的，说成「老师布置的」，比「班里在做」更让人知道该做这几道 + if (classActivity.value?.source === "teacher") return "今天老师布置的题" if (day === today) return "今天班里在做" const [, month, date] = day.split("-").map(Number) return `${month}月${date}日班里做了` @@ -259,7 +261,8 @@ async function openAnnouncement(item: AnnouncementListItem) { {{ MY_STATUS[item.myStatus].label }} {{ item.problemDisplayId }} {{ item.title }} - + + {{ item.acceptedCount }}/{{ item.userCount }} 人通过 diff --git a/apps/web/src/routes.ts b/apps/web/src/routes.ts index 6dc8122..7818621 100644 --- a/apps/web/src/routes.ts +++ b/apps/web/src/routes.ts @@ -69,6 +69,12 @@ export const ojs: RouteRecordRaw = { name: "rank", component: () => import("oj/rank/list.vue"), }, + { + path: "classroom", + name: "classroom board", + component: () => import("oj/classroom/board.vue"), + meta: { requiresAuth: true, requiresTeacherAdmin: true }, + }, { path: "class", name: "class", diff --git a/apps/web/src/shared/components/Header.vue b/apps/web/src/shared/components/Header.vue index a066370..4caab5d 100644 --- a/apps/web/src/shared/components/Header.vue +++ b/apps/web/src/shared/components/Header.vue @@ -193,6 +193,15 @@ const options = computed>(() => [ onClick: () => (collabStore.helpPanelOpen = true), }, }, + { + label: "课堂看板", + key: "classroom-board", + show: userStore.isTeacherOrAbove, + icon: renderIcon("fluent-emoji:school"), + props: { + onClick: () => router.push("/classroom"), + }, + }, { label: "我的主页", key: "home", diff --git a/apps/web/src/utils/types.ts b/apps/web/src/utils/types.ts index 4cc9438..64709e1 100644 --- a/apps/web/src/utils/types.ts +++ b/apps/web/src/utils/types.ts @@ -290,6 +290,9 @@ export type { ClassComparison, ClassRankItem, ClassUserRank } from "@oj2/contrac /** 班里最近一次一起做的题（课上老师点的那几道），见后端 `/me/class-activity` */ export type { ClassActivity, ClassActivityProblem } from "@oj2/contract" +/** 课堂看板：一个班今天这节课的题 × 全班学生 */ +export type { ClassBoard, ClassBoardStudent, ClassBoardCell } from "@oj2/contract" + /** * 学生侧的比赛：不含 password / visible。后台用 `AdminContest` —— * oj 侧的 contestSchema 永远不含 password，后台要能看到（告诉学生） diff --git a/packages/contract/src/classroom.ts b/packages/contract/src/classroom.ts index 9fc3a19..718ec14 100644 --- a/packages/contract/src/classroom.ts +++ b/packages/contract/src/classroom.ts @@ -81,15 +81,65 @@ export const classActivityProblemSchema = z.object({ export const classActivitySchema = z.object({ className: z.string().nullable(), day: z.string().nullable(), + /** teacher = 老师在课堂看板里布置的；inferred = 从同班提交记录推断的 */ + source: z.enum(["teacher", "inferred"]).nullable(), problems: z.array(classActivityProblemSchema), }) +/** 课堂看板里老师布置这节课的题：按输入顺序给展示题号，最多 20 道，空数组 = 清掉 */ +export const classLessonRequestSchema = z.object({ + className: z.string().trim().min(1), + problemDisplayIds: z.array(z.string().trim().min(1)).max(20), +}) + +export const classBoardProblemSchema = z.object({ + problemId: z.number().int(), + problemDisplayId: z.string(), + title: z.string(), +}) + +export const classBoardCellSchema = z.object({ + /** accepted 看的是题库里（不含比赛）有没有通过过，不限今天 —— 以前做过的也算做完 */ + status: z.enum(["accepted", "tried", "none"]), + /** 今天在这道题上交了几次 */ + attempts: z.number().int(), + /** 第一次通过的时刻；今天之前通过的，前端显示成「之前」 */ + acceptedAt: z.string().nullable(), +}) + +export const classBoardStudentSchema = z.object({ + userId: z.number().int(), + username: z.string(), + realName: z.string().nullable(), + /** 和 problems 同序 */ + cells: z.array(classBoardCellSchema), + /** 今天最后一次提交（任何题），没交过为 null */ + lastSubmitAt: z.string().nullable(), +}) + +/** + * 课堂看板：一个班、今天、这节课的几道题 × 全班学生。 + * className 为 null = 没指定班级、最近两小时也没有哪个班在交（没法猜）。 + */ +export const classBoardSchema = z.object({ + className: z.string().nullable(), + day: z.string(), + source: z.enum(["teacher", "inferred"]).nullable(), + problems: z.array(classBoardProblemSchema), + students: z.array(classBoardStudentSchema), +}) + export type ClassRankItem = z.infer export type ClassUserRank = z.infer export type ClassComparison = z.infer export type ClassComparisonResponse = z.infer export type ClassActivity = z.infer +export type ClassLessonRequest = z.infer +export type ClassBoard = z.infer +export type ClassBoardProblem = z.infer +export type ClassBoardStudent = z.infer +export type ClassBoardCell = z.infer export type ClassActivityProblem = z.infer export type ClassUserRankItem = z.infer