visual demo version

CHALLENGE_2/sleepysound/lib/models/spotify_track.dart

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+import 'package:json_annotation/json_annotation.dart';
+
+part 'spotify_track.g.dart';
+
+@JsonSerializable()
+class SpotifyTrack {
+  final String id;
+  final String name;
+  final List<SpotifyArtist> artists;
+  final SpotifyAlbum album;
+  @JsonKey(name: 'duration_ms')
+  final int durationMs;
+  @JsonKey(name: 'external_urls')
+  final Map<String, String> externalUrls;
+  @JsonKey(name: 'preview_url')
+  final String? previewUrl;
+
+  SpotifyTrack({
+    required this.id,
+    required this.name,
+    required this.artists,
+    required this.album,
+    required this.durationMs,
+    required this.externalUrls,
+    this.previewUrl,
+  });
+
+  factory SpotifyTrack.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyTrackFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SpotifyTrackToJson(this);
+
+  String get artistNames => artists.map((artist) => artist.name).join(', ');
+  
+  String get duration {
+    final minutes = (durationMs / 60000).floor();
+    final seconds = ((durationMs % 60000) / 1000).floor();
+    return '$minutes:${seconds.toString().padLeft(2, '0')}';
+  }
+
+  String get imageUrl => album.images.isNotEmpty ? album.images.first.url : '';
+}
+
+@JsonSerializable()
+class SpotifyArtist {
+  final String id;
+  final String name;
+
+  SpotifyArtist({
+    required this.id,
+    required this.name,
+  });
+
+  factory SpotifyArtist.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyArtistFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SpotifyArtistToJson(this);
+}
+
+@JsonSerializable()
+class SpotifyAlbum {
+  final String id;
+  final String name;
+  final List<SpotifyImage> images;
+
+  SpotifyAlbum({
+    required this.id,
+    required this.name,
+    required this.images,
+  });
+
+  factory SpotifyAlbum.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyAlbumFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SpotifyAlbumToJson(this);
+}
+
+@JsonSerializable()
+class SpotifyImage {
+  final int height;
+  final int width;
+  final String url;
+
+  SpotifyImage({
+    required this.height,
+    required this.width,
+    required this.url,
+  });
+
+  factory SpotifyImage.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyImageFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SpotifyImageToJson(this);
+}
+
+@JsonSerializable()
+class SpotifySearchResponse {
+  final SpotifyTracks tracks;
+
+  SpotifySearchResponse({required this.tracks});
+
+  factory SpotifySearchResponse.fromJson(Map<String, dynamic> json) =>
+      _$SpotifySearchResponseFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SpotifySearchResponseToJson(this);
+}
+
+@JsonSerializable()
+class SpotifyTracks {
+  final List<SpotifyTrack> items;
+  final int total;
+
+  SpotifyTracks({
+    required this.items,
+    required this.total,
+  });
+
+  factory SpotifyTracks.fromJson(Map<String, dynamic> json) =>
+      _$SpotifyTracksFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SpotifyTracksToJson(this);
+}