feat: bunch of work done here, got comments and edit and delete

api/src/app/routes/music/index.ts

@@ -5,12 +5,14 @@
  */
 
 import { FastifyPluginAsync } from "fastify";
-import { Music, CreateMusicDto, UpdateMusicDto } from "@library/shared-types";
+import { Music, CreateMusicDto, UpdateMusicDto, Comment, CreateCommentDto } from "@library/shared-types";
 import { MusicService } from "../../services/music.service";
+import { CommentService } from "../../services/comment.service";
 import { adminGuard } from "../../middleware/admin-guard";
 
 const musicRoutes: FastifyPluginAsync = async (app) => {
   const musicService = new MusicService();
+  const commentService = new CommentService();
 
   /**
    * Get all music (public route).
@@ -75,6 +77,47 @@ const musicRoutes: FastifyPluginAsync = async (app) => {
       return { success: true };
     }
   );
+
+  /**
+   * Get comments for a music item (public route).
+   */
+  app.get<{ Params: { id: string }; Reply: Comment[] }>(
+    "/:id/comments",
+    async (request) => {
+      const { id } = request.params;
+      return commentService.getCommentsForMusic(id);
+    }
+  );
+
+  /**
+   * Add comment to a music item (authenticated users).
+   */
+  app.post<{ Params: { id: string }; Body: CreateCommentDto; Reply: Comment }>(
+    "/:id/comments",
+    {
+      preValidation: [app.authenticate],
+    },
+    async (request) => {
+      const { id } = request.params;
+      const userId = request.user.id;
+      return commentService.createCommentForMusic(id, userId, request.body);
+    }
+  );
+
+  /**
+   * Delete comment (admin only).
+   */
+  app.delete<{ Params: { id: string; commentId: string }; Reply: { success: boolean } }>(
+    "/:id/comments/:commentId",
+    {
+      preValidation: [app.authenticate, adminGuard],
+    },
+    async (request) => {
+      const { commentId } = request.params;
+      await commentService.deleteComment(commentId);
+      return { success: true };
+    }
+  );
 };
 
 export default musicRoutes;