🚧 add songs list 80%

Author: ChunhThanhDe

lib/core/constants/app_urls.dart

@@ -0,0 +1,5 @@
+class AppUrls {
+  static const fireStorage =
+      'https://firebasestorage.googleapis.com/v0/b/spotify-flutter-4aa82.appspot.com/o/covers%2F';
+  static const mediaAlt = 'alt=media';
+}

lib/data/models/songs/songs.dart

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+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:spotify_with_flutter/domain/entities/songs/songs.dart';
+
+class SongModel {
+  String? title;
+  String? artist;
+  num? duration;
+  Timestamp? releaseDate;
+
+  SongModel.fromJson(Map<String, dynamic> data) {
+    title = data['title'];
+    artist = data['artist'];
+    duration = data['duration'];
+    releaseDate = data['releaseDate'];
+  }
+}
+
+extension SongModelX on SongModel {
+  SongEntity toEntity() {
+    return SongEntity(
+      title: title!,
+      artist: artist!,
+      duration: duration!,
+      releaseDate: releaseDate!,
+    );
+  }
+}

lib/data/repository/song/song_repository_impl.dart

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+import 'package:dartz/dartz.dart';
+import 'package:spotify_with_flutter/data/sources/song/song_firebase_service.dart';
+import 'package:spotify_with_flutter/domain/repository/song/song.dart';
+import 'package:spotify_with_flutter/service_locator.dart';
+
+class SongRepositoryImpl extends SongsRepository {
+  @override
+  Future<Either> getNewsSongs() async {
+    return await sl<SongFirebaseService>().getNewsSongs();
+  }
+}

lib/data/sources/song/song_firebase_service.dart

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+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:dartz/dartz.dart';
+import 'package:spotify_with_flutter/data/models/songs/songs.dart';
+import 'package:spotify_with_flutter/domain/entities/songs/songs.dart';
+
+abstract class SongFirebaseService {
+  Future<Either> getNewsSongs();
+}
+
+class SongFirebaseServiceImpl extends SongFirebaseService {
+  @override
+  Future<Either> getNewsSongs() async {
+    try {
+      List<SongEntity> songs = [];
+      var data = await FirebaseFirestore.instance
+          .collection('songs')
+          .orderBy('releaseDate', descending: true)
+          .limit(3)
+          .get();
+
+      for (var element in data.docs) {
+        var songModel = SongModel.fromJson(element.data());
+        songs.add(songModel.toEntity());
+      }
+
+      return right(songs);
+    } on Exception catch (e) {
+      return const Left('An error occurred, Please try again.');
+    }
+  }
+}

lib/domain/entities/songs/songs.dart

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+import 'package:cloud_firestore/cloud_firestore.dart';
+
+class SongEntity {
+  final String title;
+  final String artist;
+  final num duration;
+  final Timestamp releaseDate;
+
+  SongEntity({
+    required this.title,
+    required this.artist,
+    required this.duration,
+    required this.releaseDate,
+  });
+}

lib/domain/repository/song/song.dart

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+import 'package:dartz/dartz.dart';
+
+abstract class SongsRepository {
+  Future<Either> getNewsSongs();
+}

lib/domain/usecase/auth/signin.dart

@@ -1,6 +1,5 @@
 import 'package:dartz/dartz.dart';
 import 'package:spotify_with_flutter/core/usecase/usecase.dart';
-import 'package:spotify_with_flutter/data/models/auth/create_user_req.dart';
 import 'package:spotify_with_flutter/data/models/auth/signin_user_req.dart';
 import 'package:spotify_with_flutter/domain/repository/auth/auth.dart';
 import 'package:spotify_with_flutter/service_locator.dart';

lib/domain/usecase/song/get_news_songs.dart

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+import 'package:dartz/dartz.dart';
+import 'package:spotify_with_flutter/core/usecase/usecase.dart';
+import 'package:spotify_with_flutter/domain/repository/song/song.dart';
+import 'package:spotify_with_flutter/service_locator.dart';
+
+class GetNewsSongsUseCase implements UseCase<Either, dynamic> {
+  @override
+  Future<Either> call({params}) async {
+    return sl<SongsRepository>().getNewsSongs();
+  }
+}

lib/presentation/home/bloc/news_songs_cubit.dart

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+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:spotify_with_flutter/domain/usecase/song/get_news_songs.dart';
+import 'package:spotify_with_flutter/presentation/home/bloc/news_songs_state.dart';
+import 'package:spotify_with_flutter/service_locator.dart';
+
+class NewsSongsCubit extends Cubit<NewsSongsState> {
+  NewsSongsCubit() : super(NewsSongsLoading());
+
+  Future<void> getNewSongs() async {
+    var returnedSongs = await sl<GetNewsSongsUseCase>().call();
+
+    returnedSongs.fold(
+      (l) {
+        emit(NewsSongsLoadFailure());
+      },
+      (data) {
+        emit(
+          NewsSongsLoaded(songs: data),
+        );
+      },
+    );
+  }
+}

lib/presentation/home/bloc/news_songs_state.dart

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+import 'package:spotify_with_flutter/domain/entities/songs/songs.dart';
+
+abstract class NewsSongsState {}
+
+class NewsSongsLoading extends NewsSongsState {}
+
+class NewsSongsLoaded extends NewsSongsState {
+  final List<SongEntity> songs;
+  NewsSongsLoaded({required this.songs});
+}
+
+class NewsSongsLoadFailure extends NewsSongsState {}