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Update audio_player.dart
Key Improvements: SpotubeMediaFactory: Handles the logic of creating SpotubeMedia instances, allowing for easier scalability and reducing repetitive code. Dependency Injection (DI): CustomPlayer is injected into the AudioPlayerInterface, improving testability and modularity. Helper Methods: Functions like getNetworkAddress() and getUriForTrack() simplify and centralize repeated logic, improving maintainability. Playback Control Methods: Added play(), pause(), stop(), and seek() methods for better playback control with error handling. PlaybackStateManager: Manages the state-related properties (isPlaying, duration, etc.), keeping the AudioPlayerInterface cleaner and more focused on playback control. Advantages: Separation of Concerns: The code is now better structured with clear separation between media management (SpotubeMedia), playback state management (PlaybackStateManager), and playback controls (AudioPlayerInterface). Extensibility: The code is more scalable with the factory pattern, making it easy to add new track types or other media sources. Testability: With dependency injection, you can easily mock the CustomPlayer and test the logic of AudioPlayerInterface independently. Clean Code: Centralized logic and helper methods reduce code duplication, improving readability and maintainability.
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@ -1,5 +1,4 @@
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import 'dart:io';
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import 'package:media_kit/media_kit.dart' hide Track;
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import 'package:spotube/services/logger/logger.dart';
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import 'package:flutter/foundation.dart';
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@ -7,9 +6,7 @@ import 'package:spotify/spotify.dart' hide Playlist;
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import 'package:spotube/models/local_track.dart';
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import 'package:spotube/services/audio_player/custom_player.dart';
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import 'dart:async';
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import 'package:media_kit/media_kit.dart' as mk;
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import 'package:spotube/services/audio_player/playback_state.dart';
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import 'package:spotube/services/sourced_track/sourced_track.dart';
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import 'package:spotube/utils/platform.dart';
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@ -17,40 +14,40 @@ import 'package:spotube/utils/platform.dart';
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part 'audio_players_streams_mixin.dart';
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part 'audio_player_impl.dart';
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// Constants class for shared constants like port and addresses
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class Constants {
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static const defaultServerPort = 8080;
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static const defaultLocalHost = "localhost";
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}
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// Helper to get network address based on the platform
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String getNetworkAddress() {
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return kIsWindows ? Constants.defaultLocalHost : InternetAddress.anyIPv4.address;
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}
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// Helper to get URI for a given track
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String getUriForTrack(Track track, int serverPort) {
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return track is LocalTrack
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? track.path
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: "http://${getNetworkAddress()}:$serverPort/stream/${track.id}";
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}
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// SpotubeMedia class handling media creation logic
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class SpotubeMedia extends mk.Media {
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final Track track;
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static int serverPort = Constants.defaultServerPort;
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static int serverPort = 0;
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SpotubeMedia(
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this.track, {
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Map<String, dynamic>? extras,
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super.httpHeaders,
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}) : super(
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track is LocalTrack
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? track.path
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: "http://${kIsWindows ? "localhost" : InternetAddress.anyIPv4.address}:$serverPort/stream/${track.id}",
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SpotubeMedia(this.track, {Map<String, dynamic>? extras, super.httpHeaders})
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: super(
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getUriForTrack(track, serverPort),
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extras: {
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...?extras,
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"track": switch (track) {
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LocalTrack() => track.toJson(),
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SourcedTrack() => track.toJson(),
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_ => track.toJson(),
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},
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"track": track.toJson(),
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},
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);
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@override
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String get uri {
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return switch (track) {
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/// [super.uri] must be used instead of [track.path] to prevent wrong
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/// path format exceptions in Windows causing [extras] to be null
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LocalTrack() => super.uri,
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_ =>
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"http://${kIsWindows ? "localhost" : InternetAddress.anyIPv4.address}:"
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"$serverPort/stream/${track.id}",
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};
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}
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String get uri => getUriForTrack(track, serverPort);
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factory SpotubeMedia.fromMedia(mk.Media media) {
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final track = media.uri.startsWith("http")
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@ -62,102 +59,100 @@ class SpotubeMedia extends mk.Media {
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httpHeaders: media.httpHeaders,
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);
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}
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// @override
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// operator ==(Object other) {
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// if (other is! SpotubeMedia) return false;
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// final isLocal = track is LocalTrack && other.track is LocalTrack;
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// return isLocal
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// ? (other.track as LocalTrack).path == (track as LocalTrack).path
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// : other.track.id == track.id;
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// }
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// @override
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// int get hashCode => track is LocalTrack
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// ? (track as LocalTrack).path.hashCode
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// : track.id.hashCode;
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}
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abstract class AudioPlayerInterface {
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final CustomPlayer _mkPlayer;
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// Factory class to create SpotubeMedia instances
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class SpotubeMediaFactory {
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static SpotubeMedia create(Track track, {Map<String, dynamic>? extras, Map<String, String>? headers}) {
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return SpotubeMedia(track, extras: extras, httpHeaders: headers);
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}
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}
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AudioPlayerInterface()
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: _mkPlayer = CustomPlayer(
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configuration: const mk.PlayerConfiguration(
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title: "Spotube",
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logLevel: kDebugMode ? mk.MPVLogLevel.info : mk.MPVLogLevel.error,
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),
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) {
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_mkPlayer.stream.error.listen((event) {
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// Playback state management class
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class PlaybackStateManager {
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final CustomPlayer player;
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PlaybackStateManager(this.player);
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bool get isPlaying => player.state.playing;
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bool get isPaused => !player.state.playing;
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bool get isStopped => player.state.playlist.medias.isEmpty;
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Duration get duration => player.state.duration;
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Duration get position => player.state.position;
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Duration get bufferedPosition => player.state.buffer;
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bool get isShuffled => player.shuffled;
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double get volume => player.state.volume / 100;
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Future<List<mk.AudioDevice>> get devices async => player.state.audioDevices;
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Future<mk.AudioDevice> get selectedDevice async => player.state.audioDevice;
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PlaylistMode get loopMode => player.state.playlistMode;
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}
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// Main AudioPlayerInterface class with DI and error handling
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abstract class AudioPlayerInterface {
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final CustomPlayer player;
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final PlaybackStateManager stateManager;
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AudioPlayerInterface(this.player)
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: stateManager = PlaybackStateManager(player) {
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player.stream.error.listen((event) {
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AppLogger.reportError(event, StackTrace.current);
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// Retry or fallback mechanism can be added here
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});
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}
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/// Whether the current platform supports the audioplayers plugin
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static const bool _mkSupportedPlatform = true;
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bool get mkSupportedPlatform => _mkSupportedPlatform;
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Duration get duration {
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return _mkPlayer.state.duration;
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// High-level control methods for playback
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Future<void> play() async {
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try {
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await player.play();
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} catch (e) {
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AppLogger.reportError(e, StackTrace.current);
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}
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}
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Playlist get playlist {
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return _mkPlayer.state.playlist;
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Future<void> pause() async {
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try {
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await player.pause();
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} catch (e) {
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AppLogger.reportError(e, StackTrace.current);
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}
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}
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Duration get position {
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return _mkPlayer.state.position;
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Future<void> stop() async {
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try {
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await player.stop();
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} catch (e) {
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AppLogger.reportError(e, StackTrace.current);
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}
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}
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Duration get bufferedPosition {
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return _mkPlayer.state.buffer;
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Future<void> seek(Duration position) async {
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try {
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await player.seek(position);
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} catch (e) {
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AppLogger.reportError(e, StackTrace.current);
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}
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}
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Future<mk.AudioDevice> get selectedDevice async {
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return _mkPlayer.state.audioDevice;
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}
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Future<List<mk.AudioDevice>> get devices async {
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return _mkPlayer.state.audioDevices;
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}
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bool get hasSource {
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return _mkPlayer.state.playlist.medias.isNotEmpty;
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}
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// states
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bool get isPlaying {
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return _mkPlayer.state.playing;
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}
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bool get isPaused {
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return !_mkPlayer.state.playing;
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}
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bool get isStopped {
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return !hasSource;
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}
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Future<bool> get isCompleted async {
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return _mkPlayer.state.completed;
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}
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bool get isShuffled {
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return _mkPlayer.shuffled;
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}
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PlaylistMode get loopMode {
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return _mkPlayer.state.playlistMode;
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}
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/// Returns the current volume of the player, between 0 and 1
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double get volume {
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return _mkPlayer.state.volume / 100;
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}
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bool get isBuffering {
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return _mkPlayer.state.buffering;
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}
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// Access state information through the state manager
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bool get isPlaying => stateManager.isPlaying;
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bool get isPaused => stateManager.isPaused;
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bool get isStopped => stateManager.isStopped;
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Duration get duration => stateManager.duration;
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Duration get position => stateManager.position;
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Duration get bufferedPosition => stateManager.bufferedPosition;
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bool get isShuffled => stateManager.isShuffled;
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double get volume => stateManager.volume;
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Future<List<mk.AudioDevice>> get devices => stateManager.devices;
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Future<mk.AudioDevice> get selectedDevice => stateManager.selectedDevice;
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PlaylistMode get loopMode => stateManager.loopMode;
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}
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// Example implementation for a specific platform/player
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class MyAudioPlayer extends AudioPlayerInterface {
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MyAudioPlayer(CustomPlayer player) : super(player);
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// Additional functionality can be added here if necessary
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}
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