syncrow-app/lib/features/devices/bloc/lights/lights_cubit.dart

import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:syncrow_app/features/devices/model/light_model.dart';

part 'lights_state.dart';

class LightsCubit extends Cubit<LightsState> {
  LightsCubit() : super(LightsInitial());

  static LightsCubit get(context) => BlocProvider.of(context);

  int getBrightness(LightModel light) {
    return light.brightness.toInt();
  }

  setBrightness(LightModel light, double value) {
    value = (value / 5).ceil() * 5;
    if (value != light.brightness) {
      light.brightness = value;
      emit(LightBrightnessChanged(value));
    }
  }

  onHorizontalDragUpdate(LightModel light, double dx, double screenWidth) {
    double newBrightness = (dx / (screenWidth - 15) * 100);
    if (newBrightness > 100) {
      newBrightness = 100;
    } else if (newBrightness < 0) {
      newBrightness = 0;
    }
    setBrightness(light, newBrightness);
  }
}