Initial commit

app/api/playlists/route.ts

@@ -0,0 +1,133 @@
+// app/api/playlists/route.ts
+import { NextResponse } from "next/server";
+import { getServerSession } from "next-auth";
+import { authOptions } from "@/lib/auth-options";
+import { prisma } from "@/lib/prisma";
+
+type VideoWithCourses = {
+  videoCourses?: Array<{ courseId: string; exclusive: boolean }>
+};
+
+function mapRestrictedCourseIds(video: VideoWithCourses) {
+  if (!video?.videoCourses?.length) return [];
+  return video.videoCourses
+    .filter((assignment) => assignment.exclusive)
+    .map((assignment) => assignment.courseId);
+}
+
+function filterRestrictedVideos(videos: any[], userCourseIds: string[]) {
+  return videos
+    .filter((video) => {
+      const restrictedCourseIds = mapRestrictedCourseIds(video);
+      if (restrictedCourseIds.length === 0) return true;
+      return restrictedCourseIds.some((courseId: string) =>
+        userCourseIds.includes(courseId)
+      );
+    })
+    .map((video) => ({
+      ...video,
+      restrictedCourseIds: mapRestrictedCourseIds(video),
+    }));
+}
+
+export async function GET(req: Request) {
+  const session = await getServerSession(authOptions);
+  if (!session?.user?.email) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+
+  const user = await prisma.user.findUnique({
+    where: { email: session.user.email },
+    include: {
+      enrollments: {
+        include: { course: true },
+      },
+    },
+  });
+
+  const courseIds = user?.enrollments.map((e) => e.courseId) ?? [];
+
+  // Get playlists directly assigned to enrolled courses
+  const coursesWithPlaylists = await prisma.course.findMany({
+    where: { id: { in: courseIds } },
+    include: {
+      playlists: {
+        include: {
+          videos: {
+            include: {
+              uploader: {
+                select: {
+                  id: true,
+                  name: true,
+                  image: true,
+                },
+              },
+              videoCourses: true,
+            },
+            orderBy: { index: "asc" },
+          },
+          courses: {
+            include: { course: true },
+          },
+        },
+        orderBy: { sortOrder: "asc" },
+      },
+    },
+    orderBy: { title: "asc" },
+  });
+
+  // Also get playlists assigned to courses via CoursePlaylist mapping
+  const additionalPlaylists = await prisma.coursePlaylist.findMany({
+    where: { courseId: { in: courseIds } },
+      include: {
+        playlist: {
+          include: {
+            videos: {
+              include: {
+                uploader: {
+                  select: {
+                    id: true,
+                    name: true,
+                    image: true,
+                  },
+                },
+                videoCourses: true,
+              },
+              orderBy: { index: "asc" },
+            },
+            courses: {
+              include: { course: true },
+            },
+          },
+        },
+        course: true,
+      },
+  });
+
+  // Merge results: add additional playlists to their respective courses
+  const playlistMap = new Map();
+  additionalPlaylists.forEach(({ course, playlist }) => {
+    if (!playlistMap.has(course.id)) {
+      playlistMap.set(course.id, []);
+    }
+    playlist.videos = filterRestrictedVideos(playlist.videos, courseIds);
+    playlistMap.get(course.id).push(playlist);
+  });
+
+  coursesWithPlaylists.forEach((course) => {
+    course.playlists.forEach((playlist) => {
+      playlist.videos = filterRestrictedVideos(playlist.videos, courseIds);
+    });
+
+    const additional = playlistMap.get(course.id) || [];
+    const existingIds = new Set(course.playlists.map((p) => p.id));
+    const newPlaylists = additional.filter((p: any) => !existingIds.has(p.id));
+    newPlaylists.forEach((playlist: any) => {
+      playlist.videos = filterRestrictedVideos(playlist.videos, courseIds);
+    });
+    course.playlists.push(...newPlaylists);
+    course.playlists.sort((a, b) => a.sortOrder - b.sortOrder);
+  });
+
+  return NextResponse.json({ subjects: coursesWithPlaylists });
+}