260 lines
7.9 KiB
TypeScript
260 lines
7.9 KiB
TypeScript
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import { v4 as uuidv4 } from 'uuid';
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import { get, query, run, all } from '../database';
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export interface ExamTask {
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id: string;
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name: string;
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subjectId: string;
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startAt: string;
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endAt: string;
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createdAt: string;
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}
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export interface ExamTaskUser {
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id: string;
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taskId: string;
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userId: string;
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createdAt: string;
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}
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export interface TaskWithSubject extends ExamTask {
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subjectName: string;
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userCount: number;
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}
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export interface TaskReport {
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taskId: string;
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taskName: string;
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subjectName: string;
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totalUsers: number;
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completedUsers: number;
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averageScore: number;
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topScore: number;
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lowestScore: number;
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details: Array<{
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userId: string;
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userName: string;
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userPhone: string;
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score: number | null;
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completedAt: string | null;
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}>;
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}
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export class ExamTaskModel {
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static async findAll(): Promise<TaskWithSubject[]> {
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const sql = `
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SELECT
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t.id,
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t.name,
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t.subject_id as subjectId,
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t.start_at as startAt,
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t.end_at as endAt,
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t.created_at as createdAt,
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s.name as subjectName,
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COUNT(DISTINCT etu.user_id) as userCount
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FROM exam_tasks t
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JOIN exam_subjects s ON t.subject_id = s.id
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LEFT JOIN exam_task_users etu ON t.id = etu.task_id
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GROUP BY t.id
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ORDER BY t.created_at DESC
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`;
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return query(sql);
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}
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static async findById(id: string): Promise<ExamTask | null> {
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const sql = `SELECT id, name, subject_id as subjectId, start_at as startAt, end_at as endAt, created_at as createdAt FROM exam_tasks WHERE id = ?`;
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const row = await get(sql, [id]);
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return row || null;
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}
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static async create(data: {
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name: string;
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subjectId: string;
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startAt: string;
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endAt: string;
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userIds: string[];
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}): Promise<ExamTask> {
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if (!data.name.trim()) throw new Error('任务名称不能为空');
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if (!data.userIds.length) throw new Error('至少选择一位用户');
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const subject = await import('./examSubject').then(({ ExamSubjectModel }) => ExamSubjectModel.findById(data.subjectId));
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if (!subject) throw new Error('科目不存在');
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const id = uuidv4();
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const sqlTask = `
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INSERT INTO exam_tasks (id, name, subject_id, start_at, end_at)
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VALUES (?, ?, ?, ?, ?)
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`;
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const sqlTaskUser = `
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INSERT INTO exam_task_users (id, task_id, user_id)
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VALUES (?, ?, ?)
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`;
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await run(sqlTask, [id, data.name.trim(), data.subjectId, data.startAt, data.endAt]);
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for (const userId of data.userIds) {
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await run(sqlTaskUser, [uuidv4(), id, userId]);
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}
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return (await this.findById(id)) as ExamTask;
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}
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static async update(id: string, data: {
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name: string;
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subjectId: string;
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startAt: string;
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endAt: string;
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userIds: string[];
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}): Promise<ExamTask> {
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const existing = await this.findById(id);
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if (!existing) throw new Error('任务不存在');
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if (!data.name.trim()) throw new Error('任务名称不能为空');
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if (!data.userIds.length) throw new Error('至少选择一位用户');
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const subject = await import('./examSubject').then(({ ExamSubjectModel }) => ExamSubjectModel.findById(data.subjectId));
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if (!subject) throw new Error('科目不存在');
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await run(`UPDATE exam_tasks SET name = ?, subject_id = ?, start_at = ?, end_at = ? WHERE id = ?`, [
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data.name.trim(),
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data.subjectId,
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data.startAt,
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data.endAt,
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id
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]);
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await run(`DELETE FROM exam_task_users WHERE task_id = ?`, [id]);
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for (const userId of data.userIds) {
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await run(`INSERT INTO exam_task_users (id, task_id, user_id) VALUES (?, ?, ?)`, [uuidv4(), id, userId]);
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}
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return (await this.findById(id)) as ExamTask;
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}
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static async delete(id: string): Promise<void> {
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const existing = await this.findById(id);
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if (!existing) throw new Error('任务不存在');
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await run(`DELETE FROM exam_tasks WHERE id = ?`, [id]);
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}
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static async getReport(taskId: string): Promise<TaskReport> {
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const task = await this.findById(taskId);
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if (!task) throw new Error('任务不存在');
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const subject = await import('./examSubject').then(({ ExamSubjectModel }) => ExamSubjectModel.findById(task.subjectId));
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if (!subject) throw new Error('科目不存在');
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const sqlUsers = `
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SELECT
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u.id as userId,
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u.name as userName,
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u.phone as userPhone,
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qr.total_score as score,
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qr.created_at as completedAt
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FROM exam_task_users etu
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JOIN users u ON etu.user_id = u.id
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LEFT JOIN quiz_records qr ON u.id = qr.user_id AND qr.task_id = ?
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WHERE etu.task_id = ?
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`;
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const rows = await query(sqlUsers, [taskId, taskId]);
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const details = rows.map((r) => ({
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userId: r.userId,
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userName: r.userName,
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userPhone: r.userPhone,
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score: r.score !== null ? r.score : null,
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completedAt: r.completedAt || null
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}));
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const completedUsers = details.filter((d) => d.score !== null).length;
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const scores = details.map((d) => d.score).filter((s) => s !== null) as number[];
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return {
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taskId,
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taskName: task.name,
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subjectName: subject.name,
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totalUsers: details.length,
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completedUsers,
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averageScore: scores.length > 0 ? scores.reduce((a, b) => a + b, 0) / scores.length : 0,
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topScore: scores.length > 0 ? Math.max(...scores) : 0,
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lowestScore: scores.length > 0 ? Math.min(...scores) : 0,
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details
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};
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}
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static async generateQuizQuestions(taskId: string, userId: string): Promise<{
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questions: Awaited<ReturnType<typeof import('./question').QuestionModel.getRandomQuestions>>;
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totalScore: number;
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timeLimitMinutes: number;
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}> {
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const task = await this.findById(taskId);
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if (!task) throw new Error('任务不存在');
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const now = new Date();
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if (now < new Date(task.startAt) || now > new Date(task.endAt)) {
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throw new Error('当前时间不在任务有效范围内');
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}
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const isAssigned = await get(
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`SELECT 1 FROM exam_task_users WHERE task_id = ? AND user_id = ?`,
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[taskId, userId]
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);
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if (!isAssigned) throw new Error('用户未被分派到此任务');
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const subject = await import('./examSubject').then(({ ExamSubjectModel }) => ExamSubjectModel.findById(task.subjectId));
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if (!subject) throw new Error('科目不存在');
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const { QuestionModel } = await import('./question');
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const questions: Awaited<ReturnType<typeof QuestionModel.getRandomQuestions>> = [];
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for (const [type, ratio] of Object.entries(subject.typeRatios)) {
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if (ratio <= 0) continue;
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const typeScore = Math.floor((ratio / 100) * subject.totalScore);
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const avgScore = 10;
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const count = Math.max(1, Math.round(typeScore / avgScore));
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const categories = Object.entries(subject.categoryRatios)
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.filter(([, r]) => r > 0)
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.map(([c]) => c);
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const qs = await QuestionModel.getRandomQuestions(type as any, count, categories);
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questions.push(...qs);
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}
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const totalScore = questions.reduce((sum, q) => sum + q.score, 0);
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return {
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questions,
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totalScore,
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timeLimitMinutes: subject.timeLimitMinutes
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};
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}
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static async getUserTasks(userId: string): Promise<ExamTask[]> {
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const now = new Date().toISOString();
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const rows = await all(`
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SELECT t.*, s.name as subjectName, s.totalScore, s.timeLimitMinutes
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FROM exam_tasks t
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INNER JOIN exam_task_users tu ON t.id = tu.task_id
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INNER JOIN exam_subjects s ON t.subject_id = s.id
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WHERE tu.user_id = ? AND t.start_at <= ? AND t.end_at >= ?
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ORDER BY t.start_at DESC
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`, [userId, now, now]);
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return rows.map(row => ({
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id: row.id,
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name: row.name,
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subjectId: row.subject_id,
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startAt: row.start_at,
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endAt: row.end_at,
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createdAt: row.created_at,
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subjectName: row.subjectName,
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totalScore: row.totalScore,
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timeLimitMinutes: row.timeLimitMinutes
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}));
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}
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}
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