feat: add spotify friend endpoint

lib/models/spotify_friends.dart

@@ -0,0 +1,100 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'spotify_friends.g.dart';
+
+@JsonSerializable(createToJson: false)
+class SpotifyFriend {
+  final String uri;
+  final String name;
+  final String imageUrl;
+
+  const SpotifyFriend({
+    required this.uri,
+    required this.name,
+    required this.imageUrl,
+  });
+
+  factory SpotifyFriend.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyFriendFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class SpotifyActivityArtist {
+  final String uri;
+  final String name;
+
+  const SpotifyActivityArtist({required this.uri, required this.name});
+
+  factory SpotifyActivityArtist.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyActivityArtistFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class SpotifyActivityAlbum {
+  final String uri;
+  final String name;
+
+  const SpotifyActivityAlbum({required this.uri, required this.name});
+
+  factory SpotifyActivityAlbum.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyActivityAlbumFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class SpotifyActivityContext {
+  final String uri;
+  final String name;
+  final num index;
+
+  const SpotifyActivityContext({
+    required this.uri,
+    required this.name,
+    required this.index,
+  });
+
+  factory SpotifyActivityContext.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyActivityContextFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class SpotifyActivityTrack {
+  final String uri;
+  final String name;
+  final String imageUrl;
+  final SpotifyActivityArtist artist;
+  final SpotifyActivityAlbum album;
+  final SpotifyActivityContext context;
+
+  const SpotifyActivityTrack({
+    required this.uri,
+    required this.name,
+    required this.imageUrl,
+    required this.artist,
+    required this.album,
+    required this.context,
+  });
+
+  factory SpotifyActivityTrack.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyActivityTrackFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class SpotifyFriendActivity {
+  SpotifyFriend user;
+  SpotifyActivityTrack track;
+
+  SpotifyFriendActivity({required this.user, required this.track});
+
+  factory SpotifyFriendActivity.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyFriendActivityFromJson(json);
+}
+
+@JsonSerializable(createToJson: false)
+class SpotifyFriends {
+  List<SpotifyFriendActivity> friends;
+
+  SpotifyFriends({required this.friends});
+
+  factory SpotifyFriends.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyFriendsFromJson(json);
+}

lib/services/custom_spotify_endpoints/spotify_endpoints.dart

@@ -2,6 +2,7 @@ import 'dart:convert';
 
 import 'package:http/http.dart' as http;
 import 'package:spotify/spotify.dart';
+import 'package:spotube/models/spotify_friends.dart';
 
 class CustomSpotifyEndpoints {
   static const _baseUrl = 'https://api.spotify.com/v1';
@@ -162,4 +163,17 @@ class CustomSpotifyEndpoints {
       result["tracks"].map((track) => Track.fromJson(track)).toList(),
     );
   }
+
+  Future<SpotifyFriends> getFriendActivity() async {
+    final res = await _client.get(
+      Uri.parse("https://guc-spclient.spotify.com/presence-view/v1/buddylist"),
+      headers: {
+        "content-type": "application/json",
+        "authorization": "Bearer $accessToken",
+        "accept": "application/json",
+      },
+    );
+
+    return SpotifyFriends.fromJson(jsonDecode(res.body));
+  }
 }