Files
syncrow-web/lib/pages/device_managment/curtain/bloc/curtain_bloc.dart
2024-09-08 20:12:51 +03:00

92 lines
2.6 KiB
Dart

import 'dart:async';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:syncrow_web/pages/device_managment/all_devices/models/device_status.dart';
import 'package:syncrow_web/pages/device_managment/curtain/bloc/curtain_event.dart';
import 'package:syncrow_web/pages/device_managment/curtain/bloc/curtain_state.dart';
import 'package:syncrow_web/services/devices_mang_api.dart';
class CurtainBloc extends Bloc<CurtainEvent, CurtainState> {
late bool deviceStatus;
final String deviceId;
Timer? _timer;
CurtainBloc({required this.deviceId}) : super(CurtainInitial()) {
on<CurtainFetchDeviceStatus>(_onFetchDeviceStatus);
on<CurtainControl>(_onCurtainControl);
}
FutureOr<void> _onFetchDeviceStatus(
CurtainFetchDeviceStatus event, Emitter<CurtainState> emit) async {
emit(CurtainStatusLoading());
try {
final status =
await DevicesManagementApi().getDeviceStatus(event.deviceId);
deviceStatus = _checkStatus(status.status[0].value);
emit(CurtainStatusLoaded(deviceStatus));
} catch (e) {
emit(CurtainError(e.toString()));
}
}
FutureOr<void> _onCurtainControl(
CurtainControl event, Emitter<CurtainState> emit) async {
final oldValue = deviceStatus;
_updateLocalValue(event.value, emit);
emit(CurtainStatusLoaded(deviceStatus));
await _runDebounce(
deviceId: event.deviceId,
code: event.code,
value: event.value,
oldValue: oldValue,
emit: emit,
);
}
Future<void> _runDebounce({
required String deviceId,
required String code,
required bool value,
required bool oldValue,
required Emitter<CurtainState> emit,
}) async {
if (_timer != null) {
_timer!.cancel();
}
_timer = Timer(const Duration(seconds: 1), () async {
try {
final controlValue = value ? 'open' : 'stop';
final response = await DevicesManagementApi()
.deviceControl(deviceId, Status(code: code, value: controlValue));
if (!response) {
_revertValueAndEmit(deviceId, oldValue, emit);
}
} catch (e) {
_revertValueAndEmit(deviceId, oldValue, emit);
}
});
}
void _revertValueAndEmit(
String deviceId, bool oldValue, Emitter<CurtainState> emit) {
_updateLocalValue(oldValue, emit);
emit(CurtainStatusLoaded(deviceStatus));
emit(const CurtainControlError('Failed to control the device.'));
}
void _updateLocalValue(bool value, Emitter<CurtainState> emit) {
deviceStatus = value;
emit(CurtainStatusLoaded(deviceStatus));
}
bool _checkStatus(String command) {
return command.toLowerCase() == 'open';
}
}