Initial commit

2024-12-15 00:52:28 +01:00
commit 540b504c2e
33 changed files with 2217 additions and 0 deletions
--- a/lib/state/connection_state_bloc.dart
+++ b/lib/state/connection_state_bloc.dart
@@ -0,0 +1,92 @@
+import 'dart:convert';
+import 'dart:developer' show log;
+
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:web_socket_channel/web_socket_channel.dart';
+
+import '../api/commands.dart';
+import '../api/events.dart';
+import 'player_state_bloc.dart';
+
+class ConnectionStateBloc extends Bloc<ConnectionEvent, WebSocketChannel?> {
+  final PlayerStateBloc playerStateBloc;
+
+  String? _uri;
+  WebSocketChannel? _channel;
+
+  ConnectionStateBloc(this.playerStateBloc) : super(null) {
+
+    on<Connect>((event, emit) {
+      if (_channel != null && _uri == event.uri) {
+        log('Already connected to ${event.uri}');
+        return;
+      } else if (_channel != null) {
+        // Clear connection, and reconnect
+        state?.sink.close();
+        playerStateBloc.add(const ClearPlayerState());
+        emit(null);
+      }
+
+      _uri = event.uri;
+
+      _channel = WebSocketChannel.connect(
+        Uri.parse(event.uri),
+      );
+
+      _channel!.stream.listen(
+        (event) {
+          final jsonData = jsonDecode(event as String);
+          if (jsonData is Map) {
+            switch (jsonData['type']) {
+              case 'initial_state':
+                playerStateBloc.add(
+                  InitialPlayerState.fromJson(jsonData['value']),
+                );
+                break;
+              case 'event':
+                final event = parseEvent(jsonData['value']);
+                if (event == null) {
+                  log('Unknown event: ${jsonData['value']}');
+                } else {
+                  log('Handling event: $event');
+                  playerStateBloc.add(event);
+                }
+                break;
+              default:
+                log('Unknown message type: ${jsonData['type']}');
+                log('Message: $jsonData');
+                break;
+            }
+          }
+        },
+        onError: (error) {
+          log('Error: $error');
+        },
+        onDone: () {
+          add(Disconnect());
+          log('Connection closed, reconnecting...');
+          add(Connect(_uri!));
+        },
+      );
+
+      emit(_channel);
+    });
+
+    on<Disconnect>((event, emit) {
+      _uri = null;
+      state?.sink.close(0, 'Disconnecting');
+      playerStateBloc.add(const ClearPlayerState());
+      emit(null);
+    });
+
+    on<Command>((event, emit) {
+      if (_channel == null) {
+        log('Cannot send command when not connected');
+        return;
+      }
+
+      _channel!.sink.add(event.toJsonString());
+    });
+  }
+}