update

PrivateCloudMusic/Handlers/CategoryHandler.cs

@@ -0,0 +1,30 @@
+using System.Linq;
+using System.Threading.Tasks;
+using Pcm.Proto;
+using Pcm.Proxy;
+using Pcm.Services;
+
+namespace Pcm.Handlers
+{
+    public class CategoryHandler
+    {
+        public async Task<StatusCode> Get(Context ctx, Request req, Response resp)
+        {
+            return await Task.FromResult(StatusCode.Ok);
+        }
+
+        public async Task<StatusCode> List(Context ctx, Request req, Response resp)
+        {
+            var musics = MusicService.Instance.Collection.FindAll()
+                .Select(t => t.ToResp())
+                .GroupBy(m => m.Album)
+                .ToDictionary(m => m.Key, m => new ListMusicResponseBody() { Musics = { m.ToList() }});
+
+            resp.Body.ListByAlbum = new ListByAlbumResponseBody()
+            {
+                Albums = { musics }
+            };
+            return await Task.FromResult(StatusCode.Ok);
+        }
+    }
+}