feat: implement LMS core (CMS, Courses, Enrollment, Progress, Auth) (Admin + API)

apps/courses/views.py

@@ -1,3 +1,73 @@
-from django.shortcuts import render
-
-# Create your views here.
+from django.utils import timezone
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from apps.common.api.base_viewset import BaseModelViewSet
+from apps.common.api.permissions import IsStaffOrReadOnly
+from apps.courses.models import Course, Enrollment, Lesson, LessonProgress
+from apps.courses.serializers import CourseSerializer, EnrollCourseResponseSerializer, MyCourseSerializer, \
+    CompleteLessonResponseSerializer
+
+
+class CourseViewSet(BaseModelViewSet):
+    queryset = Course.objects.all()
+    serializer_class = CourseSerializer
+    permission_classes = [IsStaffOrReadOnly]
+
+    search_fields = ('title', 'description')
+    filterset_fields = ['published']
+    ordering = ['-created_at']
+
+class EnrollCourseView(APIView):
+    permission_classes = [IsAuthenticated]
+
+    def post(self, request, course_id):
+        course = Course.objects.get(id=course_id)
+        enrollment, created = Enrollment.objects.get_or_create(user=request.user, course=course)
+        serializer = EnrollCourseResponseSerializer({
+            'course_id' : course.id,
+            'enrolled_at' : enrollment.enrolled_at,
+        })
+
+        return Response(serializer.data)
+
+class MyCoursesView(APIView):
+    permission_classes = [IsAuthenticated]
+
+    def get(self, request):
+        enrollments = Enrollment.objects.filter(user=request.user)
+
+        data = [
+            {
+                'course_id': e.course.id,
+                'title': e.course.title,
+                'enrolled_at': e.enrolled_at,
+           } for e in enrollments
+        ]
+
+        serializer = MyCourseSerializer(data, many=True)
+        return Response(serializer.data)
+
+class CompleteLessonView(APIView):
+    permission_classes = [IsAuthenticated]
+
+    def post(self, request, lesson_id):
+        lesson = Lesson.objects.get(id=lesson_id)
+
+        progress, _ = LessonProgress.objects.get_or_create(
+            user=request.user,
+            lesson=lesson
+        )
+
+        progress.completed = True
+        progress.complete_at = timezone.now()
+        progress.save()
+
+        serializer = CompleteLessonResponseSerializer({
+            'lesson_id' : lesson.id,
+            'completed' : progress.completed,
+            'completed_at' : progress.complete_at,
+        })
+
+        return Response(serializer.data)