feat: implement useCourse composable for managing course data, enrollment, and lesson progress.

Frontend-Learner/composables/useCourse.ts

@@ -235,6 +235,81 @@ export const useCourse = () => {
         }
     }
 
+    const saveVideoProgress = async (lessonId: number, progressSeconds: number, durationSeconds: number) => {
+        try {
+            const data = await $fetch<{ code: number; message: string; data: any }>(`${API_BASE_URL}/students/lessons/${lessonId}/progress`, {
+                method: 'POST',
+                headers: token.value ? {
+                    Authorization: `Bearer ${token.value}`
+                } : {},
+                body: {
+                    video_progress_seconds: progressSeconds,
+                    video_duration_seconds: durationSeconds
+                }
+            })
+
+            return {
+                success: true,
+                data: data.data
+            }
+        } catch (err: any) {
+            console.error('Save video progress failed:', err)
+            return {
+                success: false,
+                error: err.data?.message || err.message || 'Error saving video progress',
+                code: err.data?.code
+            }
+        }
+    }
+
+    const fetchVideoProgress = async (lessonId: number) => {
+        try {
+             const data = await $fetch<{ code: number; message: string; data: any }>(`${API_BASE_URL}/students/lessons/${lessonId}/progress`, {
+                method: 'GET',
+                headers: token.value ? {
+                    Authorization: `Bearer ${token.value}`
+                } : {}
+            })
+
+            return {
+                success: true,
+                data: data.data
+            }
+        } catch (err: any) {
+            console.error('Fetch video progress failed:', err)
+            return {
+                success: false,
+                error: err.data?.message || err.message || 'Error fetching video progress',
+                code: err.data?.code,
+                status: err.status
+            }
+        }
+    }
+
+    const markLessonComplete = async (courseId: number, lessonId: number) => {
+        try {
+            const data = await $fetch<{ code: number; message: string; data: any }>(`${API_BASE_URL}/students/courses/${courseId}/lessons/${lessonId}/complete`, {
+                method: 'POST',
+                headers: token.value ? {
+                    Authorization: `Bearer ${token.value}`
+                } : {}
+            })
+
+            return {
+                success: true,
+                data: data.data
+            }
+        } catch (err: any) {
+            console.error('Mark lesson complete failed:', err)
+            return {
+                success: false,
+                error: err.data?.message || err.message || 'Error marking lesson as complete',
+                code: err.data?.code,
+                status: err.status
+            }
+        }
+    }
+
     return {
         fetchCourses,
         fetchCourseById,
@@ -242,7 +317,10 @@ export const useCourse = () => {
         fetchEnrolledCourses,
         fetchCourseLearningInfo,
         fetchLessonContent,
-        checkLessonAccess
+        checkLessonAccess,
+        saveVideoProgress,
+        fetchVideoProgress,
+        markLessonComplete
     }
 }