elearning/Backend/src/services/CoursesInstructor.service.ts

119 lines
4.2 KiB
TypeScript

import { prisma } from '../config/database';
import { Prisma } from '@prisma/client';
import { config } from '../config';
import { logger } from '../config/logger';
import { UnauthorizedError, ValidationError, ForbiddenError } from '../middleware/errorHandler';
import jwt from 'jsonwebtoken';
import {
createCourses,
CreateCourseInput,
createCourseResponse,
GetMyCourseResponse,
ListMyCourseResponse,
addinstructorCourse,
addinstructorCourseResponse,
removeinstructorCourse,
removeinstructorCourseResponse,
setprimaryCourseInstructor,
setprimaryCourseInstructorResponse
} from "../types/CoursesInstructor.types";
export class CoursesInstructorService {
static async createCourse(courseData: CreateCourseInput, userId: number): Promise<createCourseResponse> {
try {
// Map custom input to Prisma format
const courseCreated = await prisma.course.create({
data: {
category_id: courseData.category_id,
title: courseData.title,
slug: courseData.slug,
description: courseData.description,
thumbnail_url: courseData.thumbnail_url,
price: courseData.price || 0,
is_free: courseData.is_free ?? false,
have_certificate: courseData.have_certificate ?? false,
created_by: userId, // Required field from JWT
status: 'DRAFT' // Default status
}
});
return {
code: 201,
message: 'Course created successfully',
data: courseCreated
};
} catch (error) {
logger.error('Failed to create course', { error });
throw error;
}
}
static async listMyCourses(token: string): Promise<ListMyCourseResponse> {
try {
const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
const courseInstructors = await prisma.courseInstructor.findMany({
where: {
user_id: decoded.id
},
include: {
course: true
}
});
const courses = courseInstructors.map(ci => ci.course);
return {
code: 200,
message: 'Courses retrieved successfully',
data: courses,
total: courses.length
};
} catch (error) {
logger.error('Failed to retrieve courses', { error });
throw error;
}
}
static async getmyCourse(token: string, courseId: number): Promise<GetMyCourseResponse> {
try {
const decoded = jwt.verify(token, config.jwt.secret) as { id: number; type: string };
// Check if user is instructor of this course
const courseInstructor = await prisma.courseInstructor.findFirst({
where: {
user_id: decoded.id,
course_id: courseId
},
include: {
course: {
include: {
chapters: {
include: {
lessons: {
include: {
attachments: true,
progress: true,
quiz: true
}
}
}
}
}
}
}
});
if (!courseInstructor) {
throw new ForbiddenError('You are not an instructor of this course');
}
return {
code: 200,
message: 'Course retrieved successfully',
data: courseInstructor.course
};
} catch (error) {
logger.error('Failed to retrieve course', { error });
throw error;
}
}
}