1217 lines
No EOL
47 KiB
TypeScript
1217 lines
No EOL
47 KiB
TypeScript
import { prisma } from '../config/database';
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import { Prisma } from '@prisma/client';
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import { config } from '../config';
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import { logger } from '../config/logger';
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import { UnauthorizedError, ValidationError, ForbiddenError, NotFoundError } from '../middleware/errorHandler';
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import jwt from 'jsonwebtoken';
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import {
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EnrollCourseInput,
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EnrollCourseResponse,
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ListEnrolledCoursesInput,
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ListEnrolledCoursesResponse,
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GetCourseLearningInput,
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GetCourseLearningResponse,
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GetLessonContentInput,
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GetLessonContentResponse,
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CheckLessonAccessInput,
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CheckLessonAccessResponse,
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SaveVideoProgressInput,
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SaveVideoProgressResponse,
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GetVideoProgressInput,
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GetVideoProgressResponse,
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CompleteLessonInput,
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CompleteLessonResponse,
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SubmitQuizInput,
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SubmitQuizResponse,
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} from "../types/CoursesStudent.types";
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import { getPresignedUrl, listObjects, getVideoFolder, getAttachmentsFolder } from '../config/minio';
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export class CoursesStudentService {
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async enrollCourse(input: EnrollCourseInput): Promise<EnrollCourseResponse> {
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try {
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const { course_id } = input;
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const decoded = jwt.verify(input.token, config.jwt.secret) as { id: number; type: string };
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const course = await prisma.course.findUnique({
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where: { id: course_id },
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});
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if (!course) throw new NotFoundError('Course not found');
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if (course.status !== 'APPROVED') throw new ForbiddenError('Cannot enroll in this course. Course is not available.');
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const existingEnrollment = await prisma.enrollment.findUnique({
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where: {
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unique_enrollment: {
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user_id: decoded.id,
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course_id,
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},
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},
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});
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if (existingEnrollment) {
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throw new ValidationError('Already enrolled in this course');
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}
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const enrollment = await prisma.enrollment.create({
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data: {
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course_id,
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user_id: decoded.id,
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status: 'ENROLLED',
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enrolled_at: new Date(),
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},
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});
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return {
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code: 200,
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message: 'Enrollment successful',
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data: {
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enrollment_id: enrollment.id,
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course_id: enrollment.course_id,
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user_id: enrollment.user_id,
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status: enrollment.status,
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enrolled_at: enrollment.enrolled_at,
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},
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};
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} catch (error) {
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logger.error(error);
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throw error;
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}
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}
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async GetEnrolledCourses(input: ListEnrolledCoursesInput): Promise<ListEnrolledCoursesResponse> {
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try {
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const { token } = input;
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const page = input.page ?? 1;
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const limit = input.limit ?? 20;
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const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
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const enrollments = await prisma.enrollment.findMany({
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where: {
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user_id: decoded.id,
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},
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include: {
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course: {
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select: {
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id: true,
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title: true,
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slug: true,
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thumbnail_url: true,
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description: true,
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}
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}
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},
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skip: (page - 1) * limit,
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take: limit,
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});
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const total = await prisma.enrollment.count({
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where: {
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user_id: decoded.id,
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},
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});
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const data = await Promise.all(
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enrollments.map(async (enrollment) => {
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let thumbnail_presigned_url: string | null = null;
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if (enrollment.course.thumbnail_url) {
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try {
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thumbnail_presigned_url = await getPresignedUrl(enrollment.course.thumbnail_url, 3600);
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} catch (err) {
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logger.warn(`Failed to generate presigned URL for thumbnail: ${err}`);
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}
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}
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return {
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id: enrollment.id,
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course_id: enrollment.course_id,
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course: {
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id: enrollment.course.id,
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title: enrollment.course.title as { th: string; en: string },
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slug: enrollment.course.slug,
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thumbnail_url: thumbnail_presigned_url,
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description: enrollment.course.description as { th: string; en: string },
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},
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status: enrollment.status,
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progress_percentage: enrollment.progress_percentage,
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enrolled_at: enrollment.enrolled_at,
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started_at: enrollment.started_at,
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completed_at: enrollment.completed_at,
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last_accessed_at: enrollment.last_accessed_at,
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};
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})
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);
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return {
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code: 200,
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message: 'Enrollments retrieved successfully',
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data,
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total,
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page,
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limit,
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};
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} catch (error) {
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logger.error(error);
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throw error;
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}
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}
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async getCourseLearning(input: GetCourseLearningInput): Promise<GetCourseLearningResponse> {
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try {
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const { token, course_id } = input;
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const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
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// Get course with chapters and lessons (basic info only)
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const course = await prisma.course.findUnique({
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where: { id: course_id },
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include: {
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chapters: {
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where: { is_published: true },
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orderBy: { sort_order: 'asc' },
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include: {
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lessons: {
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where: { is_published: true },
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orderBy: { sort_order: 'asc' },
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select: {
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id: true,
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chapter_id: true,
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title: true,
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type: true,
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duration_minutes: true,
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sort_order: true,
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is_published: true,
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is_sequential: true,
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prerequisite_lesson_ids: true,
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require_pass_quiz: true,
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},
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},
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},
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},
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},
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});
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if (!course) {
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throw new ForbiddenError('Course not found');
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}
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// Get enrollment
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const enrollment = await prisma.enrollment.findUnique({
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where: {
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unique_enrollment: {
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user_id: decoded.id,
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course_id,
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},
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},
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});
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if (!enrollment) {
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throw new ForbiddenError('You are not enrolled in this course');
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}
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// Get all lesson progress for this user and course
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const lessonIds = course.chapters.flatMap(ch => ch.lessons.map(l => l.id));
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const lessonProgress = await prisma.lessonProgress.findMany({
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where: {
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user_id: decoded.id,
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lesson_id: { in: lessonIds },
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},
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});
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const progressMap = new Map(lessonProgress.map(p => [p.lesson_id, p]));
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// Build chapters with lesson lock status
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const chapters = course.chapters.map(chapter => ({
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id: chapter.id,
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title: chapter.title as { th: string; en: string },
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description: chapter.description as { th: string; en: string } | null,
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sort_order: chapter.sort_order,
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is_published: chapter.is_published,
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lessons: chapter.lessons.map(lesson => {
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const progress = progressMap.get(lesson.id);
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const isCompleted = progress?.is_completed ?? false;
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// Check lock status
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let isLocked = false;
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let lockReason: string | undefined;
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if (lesson.is_sequential) {
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const prereqIds = lesson.prerequisite_lesson_ids as number[] | null;
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if (prereqIds && prereqIds.length > 0) {
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const allPrereqCompleted = prereqIds.every(id => {
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const prereqProgress = progressMap.get(id);
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return prereqProgress?.is_completed;
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});
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if (!allPrereqCompleted) {
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isLocked = true;
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lockReason = 'Complete prerequisite lessons first';
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}
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}
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}
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return {
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id: lesson.id,
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chapter_id: lesson.chapter_id,
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title: lesson.title as { th: string; en: string },
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type: lesson.type as 'VIDEO' | 'QUIZ',
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duration_minutes: lesson.duration_minutes,
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sort_order: lesson.sort_order,
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is_published: lesson.is_published,
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is_sequential: lesson.is_sequential,
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prerequisite_lesson_ids: lesson.prerequisite_lesson_ids as number[] | null,
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require_pass_quiz: lesson.require_pass_quiz,
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// Lock status
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is_locked: isLocked,
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lock_reason: lockReason,
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// Progress
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is_completed: isCompleted,
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video_progress_percentage: progress?.video_progress_percentage ? Number(progress.video_progress_percentage) : undefined,
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};
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}),
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}));
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const total_lessons = lessonIds.length;
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const completed_lessons = lessonProgress.filter(p => p.is_completed).length;
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// Generate presigned URL for thumbnail
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let thumbnail_presigned_url: string | null = null;
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if (course.thumbnail_url) {
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try {
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thumbnail_presigned_url = await getPresignedUrl(course.thumbnail_url, 3600);
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} catch (err) {
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logger.warn(`Failed to generate presigned URL for thumbnail: ${err}`);
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}
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}
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return {
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code: 200,
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message: 'Course learning retrieved successfully',
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data: {
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course: {
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id: course.id,
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title: course.title as { th: string; en: string },
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slug: course.slug,
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description: course.description as { th: string; en: string },
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thumbnail_url: thumbnail_presigned_url,
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have_certificate: course.have_certificate,
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},
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enrollment: {
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status: enrollment.status,
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progress_percentage: enrollment.progress_percentage,
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enrolled_at: enrollment.enrolled_at,
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started_at: enrollment.started_at,
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completed_at: enrollment.completed_at,
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},
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chapters,
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total_lessons,
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completed_lessons,
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},
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};
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} catch (error) {
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logger.error(error);
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throw error;
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}
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}
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async getlessonContent(input: GetLessonContentInput): Promise<GetLessonContentResponse> {
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try {
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const { token, course_id, lesson_id } = input;
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const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
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// Import MinIO functions
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// Check enrollment
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const enrollment = await prisma.enrollment.findUnique({
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where: {
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unique_enrollment: {
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user_id: decoded.id,
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course_id,
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},
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},
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});
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if (!enrollment) {
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throw new ForbiddenError('You are not enrolled in this course');
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}
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// Get lesson with attachments and quiz (including questions and choices)
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const lesson = await prisma.lesson.findUnique({
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where: { id: lesson_id },
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include: {
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attachments: {
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orderBy: { sort_order: 'asc' },
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},
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quiz: {
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include: {
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questions: {
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orderBy: { sort_order: 'asc' },
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include: {
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choices: {
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orderBy: { sort_order: 'asc' },
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},
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},
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},
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},
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},
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chapter: {
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include: {
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lessons: {
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where: { is_published: true },
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orderBy: { sort_order: 'asc' },
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select: { id: true, sort_order: true },
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},
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},
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},
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},
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});
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if (!lesson) {
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throw new NotFoundError('Lesson not found');
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}
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// Get user's progress for this lesson
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const lessonProgress = await prisma.lessonProgress.findUnique({
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where: {
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user_id_lesson_id: {
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user_id: decoded.id,
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lesson_id,
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},
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},
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});
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// Calculate prev/next lesson IDs
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const allLessons = lesson.chapter.lessons;
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const currentIndex = allLessons.findIndex(l => l.id === lesson_id);
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const prevLessonId = currentIndex > 0 ? allLessons[currentIndex - 1].id : null;
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const nextLessonId = currentIndex < allLessons.length - 1 ? allLessons[currentIndex + 1].id : null;
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// Get course_id from chapter
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const chapter_course_id = lesson.chapter.course_id;
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// Import additional MinIO functions
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// Using MinIO functions imported above
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// Get video URL from video folder (first file)
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let video_url: string | null = null;
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try {
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const videoPrefix = getVideoFolder(chapter_course_id, lesson_id);
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const videoFiles = await listObjects(videoPrefix);
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if (videoFiles.length > 0) {
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// Get presigned URL for the first video file
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video_url = await getPresignedUrl(videoFiles[0].name, 3600);
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}
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} catch (err) {
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logger.error(`Failed to get video from MinIO: ${err}`);
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}
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// Get attachments from MinIO folder
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const attachmentsWithUrls: {
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file_name: string;
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file_path: string;
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file_size: number;
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mime_type: string;
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presigned_url: string | null;
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}[] = [];
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try {
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const attachmentsPrefix = getAttachmentsFolder(chapter_course_id, lesson_id);
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const attachmentFiles = await listObjects(attachmentsPrefix);
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for (const file of attachmentFiles) {
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let presigned_url: string | null = null;
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try {
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presigned_url = await getPresignedUrl(file.name, 3600);
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} catch (err) {
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logger.error(`Failed to generate presigned URL for ${file.name}: ${err}`);
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}
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// Extract filename from path
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const fileName = file.name.split('/').pop() || file.name;
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// Guess mime type from extension
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const ext = fileName.split('.').pop()?.toLowerCase() || '';
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const mimeTypes: { [key: string]: string } = {
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'pdf': 'application/pdf',
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'doc': 'application/msword',
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'docx': 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
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'ppt': 'application/vnd.ms-powerpoint',
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'pptx': 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
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'xls': 'application/vnd.ms-excel',
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'xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
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'png': 'image/png',
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'jpg': 'image/jpeg',
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'jpeg': 'image/jpeg',
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'gif': 'image/gif',
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'mp4': 'video/mp4',
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'zip': 'application/zip',
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};
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const mime_type = mimeTypes[ext] || 'application/octet-stream';
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attachmentsWithUrls.push({
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file_name: fileName,
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file_path: file.name,
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file_size: file.size,
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mime_type,
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presigned_url,
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});
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}
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} catch (err) {
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logger.error(`Failed to list attachments from MinIO: ${err}`);
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}
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return {
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code: 200,
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message: 'Lesson retrieved successfully',
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data: {
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id: lesson.id,
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chapter_id: lesson.chapter_id,
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title: lesson.title as { th: string; en: string },
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content: lesson.content as { th: string; en: string } | null,
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type: lesson.type as 'VIDEO' | 'QUIZ',
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duration_minutes: lesson.duration_minutes,
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is_sequential: lesson.is_sequential,
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prerequisite_lesson_ids: lesson.prerequisite_lesson_ids as number[] | null,
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require_pass_quiz: lesson.require_pass_quiz,
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video_url, // Presigned URL for video
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attachments: attachmentsWithUrls,
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quiz: lesson.quiz ? {
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id: lesson.quiz.id,
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title: lesson.quiz.title as { th: string; en: string },
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description: lesson.quiz.description as { th: string; en: string } | null,
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passing_score: lesson.quiz.passing_score,
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time_limit: lesson.quiz.time_limit,
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shuffle_questions: lesson.quiz.shuffle_questions,
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shuffle_choices: lesson.quiz.shuffle_choices,
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questions: lesson.quiz.questions.map(q => ({
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id: q.id,
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question: q.question as { th: string; en: string },
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question_type: q.question_type,
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score: q.score,
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sort_order: q.sort_order,
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choices: q.choices.map(c => ({
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id: c.id,
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text: c.text as { th: string; en: string },
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sort_order: c.sort_order,
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})),
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})),
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} : null,
|
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prev_lesson_id: prevLessonId,
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next_lesson_id: nextLessonId,
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},
|
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progress: lessonProgress ? {
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is_completed: lessonProgress.is_completed,
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video_progress_seconds: lessonProgress.video_progress_seconds,
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video_duration_seconds: lessonProgress.video_duration_seconds,
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video_progress_percentage: lessonProgress.video_progress_percentage ? Number(lessonProgress.video_progress_percentage) : null,
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last_watched_at: lessonProgress.last_watched_at,
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} : undefined,
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};
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} catch (error) {
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logger.error(error);
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throw error;
|
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}
|
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}
|
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|
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|
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async checkAccessLesson(input: CheckLessonAccessInput): Promise<CheckLessonAccessResponse> {
|
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try {
|
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const { token, course_id, lesson_id } = input;
|
|
const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
|
|
|
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// Check enrollment
|
|
const enrollment = await prisma.enrollment.findUnique({
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where: {
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unique_enrollment: {
|
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user_id: decoded.id,
|
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course_id,
|
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},
|
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},
|
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});
|
|
|
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if (!enrollment) {
|
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return {
|
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code: 200,
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message: 'Not enrolled in this course',
|
|
data: {
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is_accessible: false,
|
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is_enrolled: false,
|
|
is_locked: true,
|
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lock_reason: 'You are not enrolled in this course',
|
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},
|
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};
|
|
}
|
|
|
|
// Get lesson with prerequisite info
|
|
const lesson = await prisma.lesson.findUnique({
|
|
where: { id: lesson_id },
|
|
select: {
|
|
id: true,
|
|
title: true,
|
|
is_sequential: true,
|
|
prerequisite_lesson_ids: true,
|
|
require_pass_quiz: true,
|
|
chapter: {
|
|
select: {
|
|
course_id: true,
|
|
},
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!lesson) {
|
|
throw new NotFoundError('Lesson not found');
|
|
}
|
|
|
|
// Verify lesson belongs to the course
|
|
if (lesson.chapter.course_id !== course_id) {
|
|
throw new ForbiddenError('Lesson does not belong to this course');
|
|
}
|
|
|
|
// If not sequential, allow access
|
|
if (!lesson.is_sequential) {
|
|
return {
|
|
code: 200,
|
|
message: 'Lesson is accessible',
|
|
data: {
|
|
is_accessible: true,
|
|
is_enrolled: true,
|
|
is_locked: false,
|
|
},
|
|
};
|
|
}
|
|
|
|
const prerequisiteIds = lesson.prerequisite_lesson_ids as number[] | null;
|
|
|
|
// If no prerequisites, allow access
|
|
if (!prerequisiteIds || prerequisiteIds.length === 0) {
|
|
return {
|
|
code: 200,
|
|
message: 'Lesson is accessible',
|
|
data: {
|
|
is_accessible: true,
|
|
is_enrolled: true,
|
|
is_locked: false,
|
|
},
|
|
};
|
|
}
|
|
|
|
// Get prerequisite lessons info
|
|
const prerequisiteLessons = await prisma.lesson.findMany({
|
|
where: {
|
|
id: { in: prerequisiteIds },
|
|
},
|
|
select: {
|
|
id: true,
|
|
title: true,
|
|
require_pass_quiz: true,
|
|
quiz: {
|
|
select: {
|
|
id: true,
|
|
title: true,
|
|
},
|
|
},
|
|
},
|
|
});
|
|
|
|
// Get user's progress for prerequisite lessons
|
|
const prerequisiteProgress = await prisma.lessonProgress.findMany({
|
|
where: {
|
|
user_id: decoded.id,
|
|
lesson_id: { in: prerequisiteIds },
|
|
},
|
|
});
|
|
|
|
const progressMap = new Map(prerequisiteProgress.map(p => [p.lesson_id, p]));
|
|
|
|
// Check if all prerequisites are completed
|
|
const requiredLessons: { id: number; title: { th: string; en: string }; is_completed: boolean }[] = [];
|
|
let allCompleted = true;
|
|
|
|
for (const prereqLesson of prerequisiteLessons) {
|
|
const progress = progressMap.get(prereqLesson.id);
|
|
const isCompleted = progress?.is_completed ?? false;
|
|
|
|
if (!isCompleted) {
|
|
allCompleted = false;
|
|
}
|
|
|
|
requiredLessons.push({
|
|
id: prereqLesson.id,
|
|
title: prereqLesson.title as { th: string; en: string },
|
|
is_completed: isCompleted,
|
|
});
|
|
}
|
|
|
|
// Check if any prerequisite requires passing quiz
|
|
let requiredQuizPass: { lesson_id: number; quiz_id: number; title: { th: string; en: string }; is_passed: boolean } | undefined;
|
|
|
|
for (const prereqLesson of prerequisiteLessons) {
|
|
if (prereqLesson.require_pass_quiz && prereqLesson.quiz) {
|
|
// Check if user passed the quiz
|
|
const quizAttempt = await prisma.quizAttempt.findFirst({
|
|
where: {
|
|
user_id: decoded.id,
|
|
quiz_id: prereqLesson.quiz.id,
|
|
is_passed: true,
|
|
},
|
|
});
|
|
|
|
if (!quizAttempt) {
|
|
allCompleted = false;
|
|
requiredQuizPass = {
|
|
lesson_id: prereqLesson.id,
|
|
quiz_id: prereqLesson.quiz.id,
|
|
title: prereqLesson.quiz.title as { th: string; en: string },
|
|
is_passed: false,
|
|
};
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (allCompleted) {
|
|
return {
|
|
code: 200,
|
|
message: 'Lesson is accessible',
|
|
data: {
|
|
is_accessible: true,
|
|
is_enrolled: true,
|
|
is_locked: false,
|
|
},
|
|
};
|
|
}
|
|
|
|
// Not all prerequisites completed
|
|
return {
|
|
code: 200,
|
|
message: 'Lesson is locked',
|
|
data: {
|
|
is_accessible: false,
|
|
is_enrolled: true,
|
|
is_locked: true,
|
|
lock_reason: 'กรุณาเรียนบทเรียนก่อนหน้าให้ครบก่อน',
|
|
required_lessons: requiredLessons,
|
|
required_quiz_pass: requiredQuizPass,
|
|
},
|
|
};
|
|
} catch (error) {
|
|
logger.error(error);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
async getVideoProgress(input: GetVideoProgressInput): Promise<GetVideoProgressResponse> {
|
|
try {
|
|
const { token, lesson_id } = input;
|
|
const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
|
|
|
|
// Get lesson to find course_id
|
|
const lesson = await prisma.lesson.findUnique({
|
|
where: { id: lesson_id },
|
|
select: {
|
|
id: true,
|
|
chapter: {
|
|
select: { course_id: true },
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!lesson) {
|
|
throw new NotFoundError('Lesson not found');
|
|
}
|
|
|
|
const course_id = lesson.chapter.course_id;
|
|
|
|
// Check enrollment
|
|
const enrollment = await prisma.enrollment.findUnique({
|
|
where: {
|
|
unique_enrollment: {
|
|
user_id: decoded.id,
|
|
course_id,
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!enrollment) {
|
|
throw new ForbiddenError('You are not enrolled in this course');
|
|
}
|
|
|
|
// Get progress
|
|
const progress = await prisma.lessonProgress.findUnique({
|
|
where: {
|
|
user_id_lesson_id: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
},
|
|
},
|
|
});
|
|
|
|
// Return null if no progress found
|
|
if (!progress) {
|
|
return {
|
|
code: 200,
|
|
message: 'No video progress found',
|
|
data: null,
|
|
};
|
|
}
|
|
|
|
return {
|
|
code: 200,
|
|
message: 'Video progress retrieved successfully',
|
|
data: {
|
|
lesson_id: progress.lesson_id,
|
|
video_progress_seconds: progress.video_progress_seconds,
|
|
video_duration_seconds: progress.video_duration_seconds,
|
|
video_progress_percentage: progress.video_progress_percentage ? Number(progress.video_progress_percentage) : null,
|
|
is_completed: progress.is_completed,
|
|
completed_at: progress.completed_at,
|
|
last_watched_at: progress.last_watched_at,
|
|
},
|
|
};
|
|
} catch (error) {
|
|
logger.error(error);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
async saveVideoProgress(input: SaveVideoProgressInput): Promise<SaveVideoProgressResponse> {
|
|
try {
|
|
const { token, lesson_id, video_progress_seconds, video_duration_seconds } = input;
|
|
const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
|
|
|
|
// Get lesson to find course_id
|
|
const lesson = await prisma.lesson.findUnique({
|
|
where: { id: lesson_id },
|
|
select: {
|
|
id: true,
|
|
chapter: {
|
|
select: { course_id: true },
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!lesson) {
|
|
throw new NotFoundError('Lesson not found');
|
|
}
|
|
|
|
const course_id = lesson.chapter.course_id;
|
|
|
|
// Check enrollment
|
|
const enrollment = await prisma.enrollment.findUnique({
|
|
where: {
|
|
unique_enrollment: {
|
|
user_id: decoded.id,
|
|
course_id,
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!enrollment) {
|
|
throw new ForbiddenError('You are not enrolled in this course');
|
|
}
|
|
|
|
// Calculate progress percentage (avoid division by zero)
|
|
const progressPercentage = video_duration_seconds && video_duration_seconds > 0
|
|
? (video_progress_seconds / video_duration_seconds) * 100
|
|
: null;
|
|
|
|
// Auto-complete at >= 90%
|
|
const isCompleted = progressPercentage !== null && progressPercentage >= 90;
|
|
|
|
// Save progress
|
|
const progress = await prisma.lessonProgress.upsert({
|
|
where: {
|
|
user_id_lesson_id: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
},
|
|
},
|
|
create: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
video_progress_seconds,
|
|
video_duration_seconds: video_duration_seconds ?? null,
|
|
video_progress_percentage: progressPercentage,
|
|
is_completed: isCompleted,
|
|
completed_at: isCompleted ? new Date() : null,
|
|
last_watched_at: new Date(),
|
|
},
|
|
update: {
|
|
video_progress_seconds,
|
|
video_duration_seconds: video_duration_seconds ?? null,
|
|
video_progress_percentage: progressPercentage,
|
|
// Only set completed if not already completed
|
|
is_completed: isCompleted ? true : undefined,
|
|
completed_at: isCompleted ? new Date() : undefined,
|
|
last_watched_at: new Date(),
|
|
},
|
|
});
|
|
|
|
return {
|
|
code: 200,
|
|
message: 'Video progress saved successfully',
|
|
data: {
|
|
lesson_id: progress.lesson_id,
|
|
video_progress_seconds: progress.video_progress_seconds,
|
|
video_duration_seconds: progress.video_duration_seconds,
|
|
video_progress_percentage: progress.video_progress_percentage ? Number(progress.video_progress_percentage) : null,
|
|
is_completed: progress.is_completed,
|
|
last_watched_at: progress.last_watched_at!,
|
|
},
|
|
};
|
|
} catch (error) {
|
|
logger.error(error);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
async completeLesson(input: CompleteLessonInput): Promise<CompleteLessonResponse> {
|
|
try {
|
|
const { token, lesson_id } = input;
|
|
const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
|
|
|
|
// Get lesson with chapter and course info
|
|
const lesson = await prisma.lesson.findUnique({
|
|
where: { id: lesson_id },
|
|
select: {
|
|
id: true,
|
|
sort_order: true,
|
|
chapter: {
|
|
select: {
|
|
id: true,
|
|
course_id: true,
|
|
sort_order: true,
|
|
lessons: {
|
|
where: { is_published: true },
|
|
orderBy: { sort_order: 'asc' },
|
|
select: { id: true, sort_order: true },
|
|
},
|
|
course: {
|
|
select: {
|
|
have_certificate: true,
|
|
chapters: {
|
|
where: { is_published: true },
|
|
orderBy: { sort_order: 'asc' },
|
|
include: {
|
|
lessons: {
|
|
where: { is_published: true },
|
|
orderBy: { sort_order: 'asc' },
|
|
select: { id: true },
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!lesson) {
|
|
throw new NotFoundError('Lesson not found');
|
|
}
|
|
|
|
const course_id = lesson.chapter.course_id;
|
|
|
|
// Check enrollment
|
|
const enrollment = await prisma.enrollment.findUnique({
|
|
where: {
|
|
unique_enrollment: {
|
|
user_id: decoded.id,
|
|
course_id,
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!enrollment) {
|
|
throw new ForbiddenError('You are not enrolled in this course');
|
|
}
|
|
|
|
// Complete lesson
|
|
const progress = await prisma.lessonProgress.upsert({
|
|
where: {
|
|
user_id_lesson_id: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
},
|
|
},
|
|
create: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
is_completed: true,
|
|
completed_at: new Date(),
|
|
},
|
|
update: {
|
|
is_completed: true,
|
|
completed_at: new Date(),
|
|
},
|
|
});
|
|
|
|
// Get all lesson IDs in the course
|
|
const allLessons = lesson.chapter.course.chapters.flatMap(ch => ch.lessons.map(l => l.id));
|
|
const totalLessons = allLessons.length;
|
|
|
|
// Get completed lessons count
|
|
const completedLessons = await prisma.lessonProgress.count({
|
|
where: {
|
|
user_id: decoded.id,
|
|
lesson_id: { in: allLessons },
|
|
is_completed: true,
|
|
},
|
|
});
|
|
|
|
// Calculate course progress percentage
|
|
const course_progress_percentage = totalLessons > 0
|
|
? Math.round((completedLessons / totalLessons) * 100)
|
|
: 0;
|
|
|
|
// Check if course is completed
|
|
const is_course_completed = completedLessons >= totalLessons;
|
|
|
|
// Find next lesson
|
|
const currentChapterLessons = lesson.chapter.lessons;
|
|
const currentLessonIndex = currentChapterLessons.findIndex(l => l.id === lesson_id);
|
|
let next_lesson_id: number | null = null;
|
|
|
|
if (currentLessonIndex < currentChapterLessons.length - 1) {
|
|
// Next lesson in current chapter
|
|
next_lesson_id = currentChapterLessons[currentLessonIndex + 1].id;
|
|
} else {
|
|
// Find next chapter's first lesson
|
|
const allChapters = lesson.chapter.course.chapters;
|
|
const currentChapterIndex = allChapters.findIndex(ch => ch.id === lesson.chapter.id);
|
|
if (currentChapterIndex < allChapters.length - 1) {
|
|
const nextChapter = allChapters[currentChapterIndex + 1];
|
|
if (nextChapter.lessons.length > 0) {
|
|
next_lesson_id = nextChapter.lessons[0].id;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Update enrollment progress
|
|
await prisma.enrollment.update({
|
|
where: { id: enrollment.id },
|
|
data: {
|
|
progress_percentage: course_progress_percentage,
|
|
...(is_course_completed ? {
|
|
status: 'COMPLETED',
|
|
completed_at: new Date(),
|
|
} : {}),
|
|
},
|
|
});
|
|
|
|
// Issue certificate if course completed and has certificate
|
|
let certificate_issued: boolean | undefined;
|
|
if (is_course_completed && lesson.chapter.course.have_certificate) {
|
|
// Check if certificate already exists
|
|
const existingCertificate = await prisma.certificate.findFirst({
|
|
where: {
|
|
user_id: decoded.id,
|
|
course_id,
|
|
},
|
|
});
|
|
|
|
if (!existingCertificate) {
|
|
await prisma.certificate.create({
|
|
data: {
|
|
user_id: decoded.id,
|
|
course_id,
|
|
enrollment_id: enrollment.id,
|
|
file_path: `certificates/${course_id}/${decoded.id}/${Date.now()}.pdf`,
|
|
issued_at: new Date(),
|
|
},
|
|
});
|
|
certificate_issued = true;
|
|
} else {
|
|
certificate_issued = false;
|
|
}
|
|
}
|
|
|
|
return {
|
|
code: 200,
|
|
message: 'Lesson completed successfully',
|
|
data: {
|
|
lesson_id: progress.lesson_id,
|
|
is_completed: progress.is_completed,
|
|
completed_at: progress.completed_at!,
|
|
course_progress_percentage,
|
|
is_course_completed,
|
|
next_lesson_id,
|
|
certificate_issued,
|
|
},
|
|
};
|
|
} catch (error) {
|
|
logger.error(error);
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ส่งคำตอบ Quiz และคำนวณคะแนน
|
|
* Submit quiz answers and calculate score
|
|
*/
|
|
async submitQuiz(input: SubmitQuizInput): Promise<SubmitQuizResponse> {
|
|
try {
|
|
const { token, course_id, lesson_id, answers } = input;
|
|
const decoded = jwt.verify(token, config.jwt.secret) as { id: number };
|
|
|
|
// Check enrollment
|
|
const enrollment = await prisma.enrollment.findUnique({
|
|
where: {
|
|
unique_enrollment: {
|
|
user_id: decoded.id,
|
|
course_id,
|
|
},
|
|
},
|
|
});
|
|
|
|
if (!enrollment) {
|
|
throw new ForbiddenError('You are not enrolled in this course');
|
|
}
|
|
|
|
// Get lesson and verify it's a QUIZ type
|
|
const lesson = await prisma.lesson.findUnique({
|
|
where: { id: lesson_id },
|
|
include: {
|
|
quiz: {
|
|
include: {
|
|
questions: {
|
|
include: {
|
|
choices: true,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
chapter: true,
|
|
},
|
|
});
|
|
|
|
if (!lesson) {
|
|
throw new NotFoundError('Lesson not found');
|
|
}
|
|
|
|
if (lesson.type !== 'QUIZ') {
|
|
throw new ValidationError('This lesson is not a quiz');
|
|
}
|
|
|
|
if (!lesson.quiz) {
|
|
throw new NotFoundError('Quiz not found for this lesson');
|
|
}
|
|
|
|
// Verify lesson belongs to the course
|
|
if (lesson.chapter.course_id !== course_id) {
|
|
throw new NotFoundError('Lesson not found in this course');
|
|
}
|
|
|
|
const quiz = lesson.quiz;
|
|
|
|
// Get previous attempt count
|
|
const previousAttempts = await prisma.quizAttempt.count({
|
|
where: {
|
|
user_id: decoded.id,
|
|
quiz_id: quiz.id,
|
|
},
|
|
});
|
|
const attemptNumber = previousAttempts + 1;
|
|
|
|
// Calculate score
|
|
let totalScore = 0;
|
|
let earnedScore = 0;
|
|
let correctAnswers = 0;
|
|
const answersReview: {
|
|
question_id: number;
|
|
selected_choice_id: number;
|
|
correct_choice_id: number;
|
|
is_correct: boolean;
|
|
score: number;
|
|
}[] = [];
|
|
|
|
for (const question of quiz.questions) {
|
|
totalScore += question.score;
|
|
|
|
// Find the correct choice for this question
|
|
const correctChoice = question.choices.find(c => c.is_correct);
|
|
const correctChoiceId = correctChoice?.id ?? 0;
|
|
|
|
// Find student's answer for this question
|
|
const studentAnswer = answers.find(a => a.question_id === question.id);
|
|
const selectedChoiceId = studentAnswer?.choice_id ?? 0;
|
|
|
|
// Check if answer is correct
|
|
const isCorrect = selectedChoiceId === correctChoiceId;
|
|
if (isCorrect) {
|
|
earnedScore += question.score;
|
|
correctAnswers++;
|
|
}
|
|
|
|
answersReview.push({
|
|
question_id: question.id,
|
|
selected_choice_id: selectedChoiceId,
|
|
correct_choice_id: correctChoiceId,
|
|
is_correct: isCorrect,
|
|
score: isCorrect ? question.score : 0,
|
|
});
|
|
}
|
|
|
|
// Calculate percentage and check if passed
|
|
const scorePercentage = totalScore > 0 ? (earnedScore / totalScore) * 100 : 0;
|
|
const isPassed = scorePercentage >= quiz.passing_score;
|
|
|
|
// Create quiz attempt record
|
|
const now = new Date();
|
|
const quizAttempt = await prisma.quizAttempt.create({
|
|
data: {
|
|
user_id: decoded.id,
|
|
quiz_id: quiz.id,
|
|
score: earnedScore,
|
|
total_questions: quiz.questions.length,
|
|
correct_answers: correctAnswers,
|
|
is_passed: isPassed,
|
|
attempt_number: attemptNumber,
|
|
answers: answers as any, // Store student answers as JSON
|
|
started_at: now,
|
|
completed_at: now,
|
|
},
|
|
});
|
|
|
|
// If passed, upsert lesson_progress to mark lesson as completed
|
|
if (isPassed) {
|
|
await prisma.lessonProgress.upsert({
|
|
where: {
|
|
user_id_lesson_id: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
},
|
|
},
|
|
create: {
|
|
user_id: decoded.id,
|
|
lesson_id,
|
|
is_completed: true,
|
|
completed_at: now,
|
|
},
|
|
update: {
|
|
is_completed: true,
|
|
completed_at: now,
|
|
},
|
|
});
|
|
}
|
|
|
|
return {
|
|
code: 200,
|
|
message: isPassed ? 'Quiz passed!' : 'Quiz completed',
|
|
data: {
|
|
attempt_id: quizAttempt.id,
|
|
quiz_id: quiz.id,
|
|
score: earnedScore,
|
|
total_score: totalScore,
|
|
total_questions: quiz.questions.length,
|
|
correct_answers: correctAnswers,
|
|
is_passed: isPassed,
|
|
passing_score: quiz.passing_score,
|
|
attempt_number: attemptNumber,
|
|
started_at: quizAttempt.started_at,
|
|
completed_at: quizAttempt.completed_at!,
|
|
answers_review: quiz.show_answers_after_completion ? answersReview : undefined,
|
|
},
|
|
};
|
|
} catch (error) {
|
|
logger.error(error);
|
|
throw error;
|
|
}
|
|
}
|
|
} |