Implement User/Course CRUD

src/controller/course.controller.ts

@@ -1,6 +1,7 @@
 import { Request, Response } from 'express';
 import asyncHandler from 'express-async-handler';
-import { getCoursesWithSectionsAndHours, filterAndSortCourses, getSectionsWithLessons, getCourseById, countEnrolledUsersInCourse, getProfessorByCourse} from '../service/course.service';
+import { Course } from '../entity/Course';
+import { getCoursesWithSectionsAndHours, filterAndSortCourses, getSectionsWithLessons, getCourseById, countEnrolledUsersInCourse, getProfessorByCourse, getAllCourses, saveCourse, deleteCourse} from '../service/course.service'
 
 export const filterAndSort = asyncHandler(async (req: Request, res: Response) => {
       try {
@@ -76,3 +77,101 @@ export const getCourseDetail = asyncHandler(async (req: Request, res: Response)
     t: req.t
   });
 });
+
+// user admin crud 
+// List all courses
+export const courseList = async (req: Request, res: Response): Promise<void> => {
+  const courses = await getAllCourses()
+  res.json(courses); // Alternatively, render a view for admins
+};
+
+// Get course details
+export const courseDetails = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const course = await getCourseById(parseInt(id))
+
+  if (!course) {
+    res.status(404).json({ message: 'Course not found' });
+    return;
+  }
+
+  res.json(course); // Alternatively, render a detailed view for admins
+};
+
+// Render course creation form (if needed)
+export const courseCreateGet = (req: Request, res: Response): void => {
+  res.render('courseCreateForm'); // Render a view (if needed)
+};
+
+// Handle course creation
+export const courseCreatePost = async (req: Request, res: Response): Promise<void> => {
+  const { name, price, description, professor_id } = req.body;
+
+  const newCourse = new Course({
+    name,
+    price: parseFloat(price),
+    description,
+    professor_id: parseInt(professor_id),
+    average_rating: 0,
+  });
+
+  await saveCourse(newCourse);
+  res.status(201).json(newCourse); // Alternatively, redirect or render a success page
+};
+
+// Render course deletion confirmation form (if needed)
+export const courseDeleteGet = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const course = await getCourseById(parseInt(id))
+
+  if (!course) {
+    res.status(404).json({ message: 'Course not found' });
+    return;
+  }
+
+  res.render('courseDeleteForm', { course }); // Render a view (if needed)
+};
+
+// Handle course deletion
+export const courseDeletePost = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const course = await getCourseById(parseInt(id))
+  if (!course) {
+    res.status(404).json({ message: 'Course not found' });
+    return;
+  }
+
+  await deleteCourse(course)
+  res.json({ message: 'Course deleted' }); // Alternatively, redirect or render a success page
+};
+
+// Render course update form (if needed)
+export const courseUpdateGet = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const course = await getCourseById(parseInt(id))
+
+  if (!course) {
+    res.status(404).json({ message: 'Course not found' });
+    return;
+  }
+
+  res.render('courseUpdateForm', { course }); // Render a view (if needed)
+};
+
+// Handle course update
+export const courseUpdatePost = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const { name, price, description } = req.body;
+  const course = await getCourseById(parseInt(id))
+  if (!course) {
+    res.status(404).json({ message: 'Course not found' });
+    return;
+  }
+
+  course.name = name;
+  course.price = parseFloat(price);
+  course.description = description;
+
+  await saveCourse(course)
+  res.json(course); // Alternatively, redirect or render a success page
+};

src/controller/user.controller.ts

@@ -5,6 +5,7 @@ import {
   userLogin,
   decodeJwtToken,
 } from "../service/user.service";
+import { createUser, deleteUser, getAllUsers, getUserById, saveUser } from "../service/user.service";
 
 // Register a new user
 export const register = asyncHandler(async (req: Request, res: Response) => {
@@ -53,3 +54,63 @@ export const verifyUser = asyncHandler((req: Request, res: Response) => {
       .status(401)
       .json({ status: 401, message: req.t("login.not-authentication") });
 });
+
+// crud
+// Get all users
+export const userList = async (req: Request, res: Response): Promise<void> => {
+  const users = await getAllUsers();
+  res.json(users);
+};
+
+// Get a specific user by ID
+export const userDetails = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const user = await getUserById(parseInt(id))
+
+  if (!user) {
+    res.status(404).json({ message: 'User not found' });
+    return;
+  }
+
+  res.json(user);
+};
+
+// Create a new user
+export const userCreatePost = async (req: Request, res: Response): Promise<void> => {
+  const { name, email, password, role } = req.body;
+  const newUser = createUser({ name, email, password, role })
+  res.status(201).json(newUser);
+};
+
+// Update an existing user
+export const userUpdatePost = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const { name, email, role } = req.body;
+  const user = await getUserById(parseInt(id))
+  if (!user) {
+    res.status(404).json({ message: 'User not found' });
+    return;
+  }
+
+  user.name = name;
+  user.email = email;
+  user.role = role;
+
+  await saveUser(user)
+
+  res.json(user);
+};
+
+// Delete a user
+export const userDeletePost = async (req: Request, res: Response): Promise<void> => {
+  const { id } = req.params;
+  const user = await getUserById(parseInt(id))
+  if (!user) {
+    res.status(404).json({ message: 'User not found' });
+    return;
+  }
+
+  await deleteUser(parseInt(id))
+
+  res.status(204).json({ message: 'User deleted successfully' });
+};

src/controllers/course.controller.ts

@@ -0,0 +1,75 @@
+import { Request, Response } from 'express';
+import asyncHandler from 'express-async-handler';
+import { getAllCourses, 
+  getCourseById, 
+  createCourse, 
+  deleteCourse, 
+  updateCourse, 
+} from '../service/course.service';
+
+export const courseList = 
+    asyncHandler(async (req: Request, res: Response) => {
+      const courses = await getAllCourses();
+      res.status(200).json(courses);
+    });
+
+export const courseDetails = 
+    asyncHandler(async (req: Request, res: Response) => {
+      const courseId = parseInt(req.params.id);
+      const course = await getCourseById(courseId);
+
+      if (course) {
+        res.status(200).json(course);
+      } else {
+        res.status(404).json({ message: 'Course not found' });
+      }
+    });
+
+export const createCourseGet = 
+    asyncHandler(async (req: Request, res: Response) => {
+      res.status(200).json({ message: 'Provide course data to create a course' });
+    });
+
+export const createCoursePost = 
+    asyncHandler(async (req: Request, res: Response) => {
+      const courseData = req.body; 
+      const newCourse = await createCourse(courseData);
+      res.status(201).json(newCourse);
+    });
+
+export const deleteCourseGet = 
+    asyncHandler(async (req: Request, res: Response) => {
+      res.status(200).json({ message: 'Confirm course deletion' });
+    });
+
+export const deleteCoursePost = 
+    asyncHandler(async (req: Request, res: Response) => {
+      const courseId = parseInt(req.params.id);
+      const course = await getCourseById(courseId);
+
+      if (course) {
+        await deleteCourse(course);
+        res.status(200).json({ message: 'Course deleted' });
+      } else {
+        res.status(404).json({ message: 'Course not found' });
+      }
+    });
+
+export const updateCourseGet = 
+    asyncHandler(async (req: Request, res: Response) => {
+      res.status(200).json({ message: 'Provide updated course data' });
+    });
+
+export const updateCoursePost = 
+    asyncHandler(async (req: Request, res: Response) => {
+      const courseId = parseInt(req.params.id);
+      const course = await getCourseById(courseId);
+
+      if (course) {
+        const updatedData = req.body;
+        const updatedCourse = await updateCourse(course, updatedData);
+        res.status(200).json(updatedCourse);
+      } else {
+        res.status(404).json({ message: 'Course not found' });
+      }
+    });

src/controllers/user.controller.ts

@@ -0,0 +1,85 @@
+import { getAllUsers, 
+    getUserById, 
+    createUser, 
+    updateUser, 
+    deleteUser 
+} from '../service/user.service';
+import { Request, Response } from 'express';
+import asyncHandler from 'express-async-handler';
+
+export const userList = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const users = await getAllUsers();
+        res.status(200).json(users); 
+});
+
+export const userDetails = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const userId = parseInt(req.params.id); 
+        const user = await getUserById(userId);
+
+        if (user) {
+            res.status(200).json(user); 
+        } else {
+            res.status(404).json({ message: 'User not found' }); 
+        }
+});
+
+export const userCreateGet = 
+    asyncHandler(async (req: Request, res: Response) => {
+        res.status(200).json({ message: 'Display user creation form' }); 
+});
+
+export const userCreatePost = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const newUserData = req.body; 
+        const newUser = await createUser(newUserData);
+        res.status(201).json(newUser); 
+});
+
+export const userDeleteGet = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const userId = parseInt(req.params.id); 
+        const user = await getUserById(userId);
+
+        if (user) {
+            res.status(200).json({ message: 'Confirm deletion of user', user }); 
+        } else {
+            res.status(404).json({ message: 'User not found' }); 
+        }
+});
+
+export const userDeletePost = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const userId = parseInt(req.params.id); 
+        await deleteUser(userId); 
+        res.status(204).send(); 
+});
+
+export const userUpdateGet = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const userId = parseInt(req.params.id); 
+        const user = await getUserById(userId);
+
+        if (user) {
+            res.status(200).json(user); 
+        } else {
+            res.status(404).json({ message: 'User not found' }); 
+        }
+});
+
+export const userUpdatePost = 
+    asyncHandler(async (req: Request, res: Response) => {
+        const userToUpdate = await getUserById(parseInt(req.params.id));
+        const updatedUserData = req.body; 
+        if (!userToUpdate) {
+            throw new Error('User not found');
+        }
+        const updatedUser = await updateUser(userToUpdate, updatedUserData);
+
+        if (updatedUser) {
+            res.status(200).json(updatedUser); 
+        } else {
+            res.status(404).json({ message: 'User not found' }); 
+        }
+});

src/middleware/roleCheckMiddleware.ts

@@ -0,0 +1,17 @@
+import { Request, Response, NextFunction } from 'express';
+
+export const isAdmin = (req: Request, res: Response, next: NextFunction) => {
+    if (req.session?.user?.role === 'admin') { 
+      return next();
+    } else {
+      res.status(403).json({ message: 'Access forbidden: Admins only' });
+    }
+  };
+
+// Middleware to check if the user is a professor or admin
+export const isProfessor = (req: Request, res: Response, next: NextFunction) => {
+  if (req.session?.user?.role === 'professor') {
+    return next();
+  }
+  res.status(403).json({ message: 'Access forbidden: Professors only' });
+};

src/route/course.routes.ts

@@ -0,0 +1,22 @@
+import { Router } from 'express';
+import * as courseController from '../controllers/course.controller';
+
+const router: Router = Router();
+
+router.get('/', courseController.courseList);
+
+router.get('/create', courseController.createCourseGet);
+
+router.get('/:id', courseController.courseDetails);
+
+router.post('/create', courseController.createCoursePost);
+
+router.get('/:id/delete', courseController.deleteCourseGet);
+
+router.post('/:id/delete', courseController.deleteCoursePost);
+
+router.get('/:id/update', courseController.updateCourseGet);
+
+router.post('/:id/update', courseController.updateCoursePost);
+
+export default router;

src/route/index.ts

@@ -0,0 +1,13 @@
+import { Router } from 'express'
+import userRoutes from './user.routes'
+import courseRoutes from './course.routes'
+
+// **** Variables **** //
+const router = Router();
+
+/* GET home page. */
+router.use('/users', userRoutes)
+router.use('/courses', courseRoutes)
+
+// **** Export default **** //
+export default router;