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mobile: Share database with playback service

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This commit is contained in:
Elias Projahn 2020-05-04 09:23:49 +02:00
parent 5300d674b5
commit 7c9ac4e0ae
2 changed files with 49 additions and 15 deletions
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21
mobile/lib/backend.dart
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@ -1,5 +1,6 @@
import 'dart:io';
import 'dart:isolate';
import 'dart:ui';
import 'package:flutter/widgets.dart';
import 'package:moor/isolate.dart';
@ -88,8 +89,6 @@ class BackendState extends State<Backend> {
MusicusClient client;
MusicLibrary ml;
MoorIsolate _moorIsolate;
@override
void initState() {
super.initState();
@ -105,11 +104,22 @@ class BackendState extends State<Backend> {
}
Future<void> _load() async {
_moorIsolate = await _createMoorIsolate();
final dbConnection = await _moorIsolate.connect();
player.setup();
MoorIsolate moorIsolate;
final moorPort = IsolateNameServer.lookupPortByName('moorPort');
if (moorPort != null) {
moorIsolate = MoorIsolate.fromConnectPort(moorPort);
} else {
moorIsolate = await _createMoorIsolate();
IsolateNameServer.registerPortWithName(
moorIsolate.connectPort, 'moorPort');
}
final dbConnection = await moorIsolate.connect();
db = Database.connect(dbConnection);
player.setup();
await settings.load();
_updateMusicLibrary(settings.musicLibraryUri.value);
@ -149,7 +159,6 @@ class BackendState extends State<Backend> {
void dispose() {
super.dispose();
client.dispose();
_moorIsolate.shutdownAll();
}
}

41
mobile/lib/player.dart
View file

@ -4,6 +4,8 @@ import 'dart:isolate';
import 'dart:ui';
import 'package:audio_service/audio_service.dart';
import 'package:moor/isolate.dart';
import 'package:musicus_database/musicus_database.dart';
import 'package:musicus_player/musicus_player.dart';
import 'package:rxdart/rxdart.dart';
@ -334,16 +336,11 @@ class _PlaybackService extends BackgroundAudioTask {
action: MediaAction.stop,
);
static const dummyMediaItem = MediaItem(
id: 'dummy',
album: 'Johannes Brahms',
title: 'Symphony No. 1 in C minor, Op. 68: 1. Un poco sostenuto — Allegro',
duration: 10000,
);
final _completer = Completer();
final _loading = Completer();
final List<InternalTrack> _playlist = [];
Database db;
MusicusPlayer _player;
int _currentTrack = 0;
bool _playing = false;
@ -360,6 +357,16 @@ class _PlaybackService extends BackgroundAudioTask {
_setState();
}
});
_load();
}
/// Initialize database.
Future<void> _load() async {
final moorPort = IsolateNameServer.lookupPortByName('moorPort');
final moorIsolate = MoorIsolate.fromConnectPort(moorPort);
db = Database.connect(await moorIsolate.connect());
_loading.complete();
}
/// Update the audio service status for the system.
@ -376,7 +383,25 @@ class _PlaybackService extends BackgroundAudioTask {
updateTime: updateTime,
);
AudioServiceBackground.setMediaItem(dummyMediaItem);
if (_playlist.isNotEmpty) {
await _loading.future;
final track = _playlist[_currentTrack];
final recordingInfo = await db.getRecording(track.track.recordingId);
final workInfo = await db.getWork(recordingInfo.recording.work);
final composers = workInfo.composers
.map((p) => '${p.firstName} ${p.lastName}')
.join(', ');
final title = workInfo.work.title;
AudioServiceBackground.setMediaItem(MediaItem(
id: track.uri,
album: composers,
title: title,
));
}
}
/// Send a message to the UI.