refactor: reorder searchInstructors endpoint and fix role code to uppercase INSTRUCTOR, add lesson completion tracking on quiz pass

Backend/src/controllers/CoursesInstructorController.ts

@@ -43,6 +43,21 @@ export class CoursesInstructorController {
         return await CoursesInstructorService.listMyCourses(token);
     }
 
+    /**
+     * ค้นหาผู้สอนทั้งหมดในระบบ
+     * Search all instructors in database
+     * @param query - คำค้นหา (email หรือ username) / Search query (email or username)
+     */
+    @Get('search-instructors')
+    @Security('jwt', ['instructor'])
+    @SuccessResponse('200', 'Instructors found')
+    @Response('401', 'Invalid or expired token')
+    public async searchInstructors(@Request() request: any, @Query() query: string): Promise<SearchInstructorResponse> {
+        const token = request.headers.authorization?.replace('Bearer ', '');
+        if (!token) throw new ValidationError('No token provided');
+        return await CoursesInstructorService.searchInstructors({ token, query });
+    }
+
     /**
      * ดึงข้อมูลคอร์สเฉพาะของผู้สอน (พร้อมบทเรียนและเนื้อหา)
      * Get detailed course information including chapters, lessons, attachments, and quizzes
@@ -197,21 +212,6 @@ export class CoursesInstructorController {
         return await CoursesInstructorService.listInstructorsOfCourse({ token, course_id: courseId });
     }
 
-    /**
-     * ค้นหาผู้สอนทั้งหมดในระบบ
-     * Search all instructors in database
-     * @param query - คำค้นหา (email หรือ username) / Search query (email or username)
-     */
-    @Get('search-instructors')
-    @Security('jwt', ['instructor'])
-    @SuccessResponse('200', 'Instructors found')
-    @Response('401', 'Invalid or expired token')
-    public async searchInstructors(@Request() request: any, @Query() query: string): Promise<SearchInstructorResponse> {
-        const token = request.headers.authorization?.replace('Bearer ', '');
-        if (!token) throw new ValidationError('No token provided');
-        return await CoursesInstructorService.searchInstructors({ token, query });
-    }
-
     /**
      * เพิ่มผู้สอนเข้าในคอร์ส (ใช้ email หรือ username)
      * Add a new instructor to the course (using email or username)

Backend/src/services/CoursesInstructor.service.ts

@@ -357,7 +357,7 @@ export class CoursesInstructorService {
                         { email: { contains: input.query, mode: 'insensitive' } },
                         { username: { contains: input.query, mode: 'insensitive' } },
                     ],
-                    role: { code: 'instructor' }
+                    role: { code: 'INSTRUCTOR' }
                 },
                 include: {
                     profile: true
@@ -407,7 +407,7 @@ export class CoursesInstructorService {
                         { email: addinstructorCourse.email_or_username },
                         { username: addinstructorCourse.email_or_username },
                     ],
-                    role: { code: 'instructor' }
+                    role: { code: 'INSTRUCTOR' }
                 }
             });
 

Backend/src/services/CoursesStudent.service.ts

@@ -1169,6 +1169,28 @@ export class CoursesStudentService {
                 },
             });
 
+            // 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',