// ignore_for_file: constant_identifier_names, unused_import

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:syncrow_app/features/app_layout/bloc/home_cubit.dart';
import 'package:syncrow_app/features/app_layout/model/space_model.dart';
import 'package:syncrow_app/features/devices/model/device_category_model.dart';
import 'package:syncrow_app/features/devices/model/device_control_model.dart';
import 'package:syncrow_app/features/devices/model/device_model.dart';
import 'package:syncrow_app/features/devices/model/status_model.dart';
import 'package:syncrow_app/features/devices/view/widgets/ACs/acs_view.dart';
import 'package:syncrow_app/features/devices/view/widgets/curtains/curtain_view.dart';
import 'package:syncrow_app/features/devices/view/widgets/gateway/gateway_view.dart';
import 'package:syncrow_app/features/devices/view/widgets/lights/lights_view.dart';
import 'package:syncrow_app/features/devices/view/widgets/three_gang/three_gang_interface.dart';
import 'package:syncrow_app/features/devices/view/widgets/smart_door/door_view.dart';
import 'package:syncrow_app/services/api/devices_api.dart';
import 'package:syncrow_app/services/api/network_exception.dart';
import 'package:syncrow_app/services/api/spaces_api.dart';
import 'package:syncrow_app/utils/resource_manager/constants.dart';

part 'devices_state.dart';

class DevicesCubit extends Cubit<DevicesState> {
  DevicesCubit._() : super(DevicesInitial()) {
    if (HomeCubit.getInstance().selectedSpace != null) {
      fetchGroups(HomeCubit.getInstance().selectedSpace!.id!);
      for (var room in HomeCubit.getInstance().selectedSpace!.rooms!) {
        fetchDevicesByRoomId(room.id!);
      }
    }
  }

  static DevicesCubit? _instance;
  static DevicesCubit getInstance() {
    return _instance ??= DevicesCubit._();
  }

  DeviceModel? selectedDevice;

  @override
  Future<void> close() {
    _instance = null;
    return super.close();
  }

  void emitSafe(DevicesState newState) {
    final cubit = this;
    if (!cubit.isClosed) {
      cubit.emit(newState);
    }
  }

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

  static List<DevicesCategoryModel>? allCategories;

  selectCategory(int index) {
    for (var i = 0; i < allCategories!.length; i++) {
      if (i == index) {
        allCategories![i].isSelected = true;
      } else {
        allCategories![i].isSelected = false;
      }
    }
    emitSafe(DevicesCategoryChanged());
  }

  unselectAllCategories() {
    for (var category in allCategories!) {
      category.isSelected = false;
    }
    emitSafe(DevicesCategoryChanged());
  }

  Widget? get chosenCategoryView {
    if (allCategories != null) {
      for (var category in allCategories!) {
        if (category.isSelected) {
          switch (category.type) {
            case DeviceType.AC:
              return const ACsView();
            case DeviceType.LightBulb:
              return const LightsView();
            case DeviceType.DoorLock:
              return const DoorView();
            case DeviceType.Curtain:
              return const CurtainView();
            // case DeviceType.ThreeGang:
            //   return const ThreeGangSwitchesView();
            case DeviceType.Gateway:
              return const GateWayView();
            default:
              return null;
          }
        }
      }
    }
    return null;
  }

  DevicesCategoryModel? get chosenCategory {
    for (var category in allCategories!) {
      if (category.isSelected) {
        return category;
      }
    }
    return null;
  }

  selectDevice(DeviceModel device) {
    for (var category in allCategories!) {
      if (category.devices != null) {
        for (var device in category.devices!) {
          if (device.isSelected) {
            category.isSelected = false;
            emitSafe(DeviceSelected());
            return;
          }
        }
      }
    }
    device.isSelected = !device.isSelected;
    emitSafe(DeviceSelected());
  }

  DeviceModel? getSelectedDevice() {
    for (var category in allCategories!) {
      if (category.devices != null) {
        for (var device in category.devices!) {
          if (device.isSelected) {
            return device;
          }
        }
      }
    }
    return null;
  }

  changeCategorySwitchValue(DevicesCategoryModel category) {
    if (category.devicesStatus != null) {
      category.devicesStatus = !category.devicesStatus!;
      if (category.devices != null) {
        for (var device in category.devices!) {
          device.isOnline = category.devicesStatus;
        }
      }
    } else {
      category.devicesStatus = true;
      if (category.devices != null) {
        for (var device in category.devices!) {
          device.isOnline = true;
        }
      }
    }
    updateDevicesStatus(category);

    emitSafe(CategorySwitchChanged());
  }

  turnOnOffDevice(DeviceModel device) {
    device.isOnline = !device.isOnline!;
    DevicesCategoryModel category = allCategories!.firstWhere((category) {
      if (category.devices != null) {
        return category.devices!.contains(device);
      } else {
        return false;
      }
    });
    updateDevicesStatus(category);
    emitSafe(DeviceSwitchChanged());
  }

  updateDevicesStatus(DevicesCategoryModel category) {
    if (category.devices != null) {
      if (category.devices!.isNotEmpty) {
        bool? tempStatus = category.devices![0].isOnline;
        for (var ac in category.devices!) {
          //check if there any ac have a different status than the initial ==> turn off the universal switch
          if (ac.isOnline != tempStatus) {
            category.devicesStatus = null;
            emitSafe(DeviceSwitchChanged());
            return;
          }
          category.devicesStatus = tempStatus;
          emitSafe(DeviceSwitchChanged());
        }
      } else {
        category.devicesStatus = null;
        emitSafe(DeviceSwitchChanged());
      }
    }
  }

  turnAllDevicesOff(DevicesCategoryModel category) {
    if (category.devices != null) {
      if (category.devices!.isNotEmpty) {
        for (var device in category.devices!) {
          device.isOnline = false;
        }
        changeCategorySwitchValue(category);
        updateDevicesStatus(category);
        emitSafe(CategorySwitchChanged());
      }
    }
  }

  turnAllDevicesOn(DevicesCategoryModel category) {
    if (category.devices != null) {
      if (category.devices!.isNotEmpty) {
        for (var device in category.devices!) {
          device.isOnline = true;
        }
        changeCategorySwitchValue(category);
        updateDevicesStatus(category);
        emitSafe(CategorySwitchChanged());
      }
    }
  }

  areAllDevicesOff(DevicesCategoryModel category) {
    if (category.devices != null) {
      for (var device in category.devices!) {
        if (device.isOnline ?? false) {
          category.devicesStatus = false;
          emitSafe(CategorySwitchChanged());
          return;
        }
      }
    }
  }

  clearCategoriesSelection(BuildContext context) {
    for (var category in allCategories!) {
      category.isSelected = false;
      if (category.devices != null) {
        for (var device in category.devices!) {
          device.isSelected = false;
        }
      }
    }
    Navigator.popUntil(context, (route) => route.isFirst);

    emitSafe(DevicesCategoryChanged());
  }

///////////////////////// API CALLS //////////////////////////
  deviceControl(DeviceControlModel control, String deviceId) async {
    emitSafe(DeviceControlLoading(
      code: control.code,
    ));
    try {
      var response = await DevicesAPI.controlDevice(control);

      if (response['success'] ?? false) {
        emitSafe(DeviceControlSuccess(code: control.code));
        //this delay is to give tuya server time to update the status
        Future.delayed(const Duration(milliseconds: 400), () {
          getDevicesStatues(
              deviceId,
              HomeCubit.getInstance()
                  .selectedSpace!
                  .rooms!
                  .indexOf(HomeCubit.getInstance().selectedRoom!),
              code: control.code);
        });
      } else {
        emitSafe(DeviceControlError('Failed to control the device'));
      }
    } catch (failure) {
      emitSafe(DeviceControlError(failure.toString()));
      return;
    }
  }

  fetchGroups(int spaceId) async {
    emitSafe(DevicesCategoriesLoading());
    try {
      allCategories = await DevicesAPI.fetchGroups(spaceId);
    } catch (e) {
      emitSafe(DevicesCategoriesError(e.toString()));
      return;
    }
    if (allCategories!.isNotEmpty && allCategories != null) {
      emitSafe(DevicesCategoriesSuccess());
    } else {
      emitSafe(DevicesCategoriesError('No Groups found'));
    }
  }

  fetchDevicesByRoomId(int? roomId) async {
    if (roomId == null) return;

    emitSafe(GetDevicesLoading());
    int roomIndex = HomeCubit.getInstance()
        .selectedSpace!
        .rooms!
        .indexWhere((element) => element.id == roomId);
    try {
      HomeCubit.getInstance().selectedSpace!.rooms![roomIndex].devices =
          await DevicesAPI.getDevicesByRoomId(roomId);
    } catch (e) {
      emitSafe(GetDevicesError(e.toString()));
      return;
    }
    emitSafe(GetDevicesSuccess());

    //get status for each device
    //TODO get devices status per page via page controller instead of getting all devices status at once
    for (var device
        in HomeCubit.getInstance().selectedSpace!.rooms![roomIndex].devices!) {
      getDevicesStatues(device.id!, roomIndex);
    }
  }

  getDevicesStatues(String deviceId, int roomIndex, {String? code}) async {
    emitSafe(GetDeviceStatusLoading(code: code));
    int deviceIndex = HomeCubit.getInstance()
        .selectedSpace!
        .rooms![roomIndex]
        .devices!
        .indexWhere((element) => element.id == deviceId);
    List<StatusModel> statuses = [];
    try {
      var response = await DevicesAPI.getDeviceStatus(deviceId);
      for (var status in response['result']['status']) {
        statuses.add(StatusModel.fromJson(status));
      }
    } catch (e) {
      emitSafe(GetDeviceStatusError(e.toString()));
      return;
    }
    HomeCubit.getInstance()
        .selectedSpace!
        .rooms![roomIndex]
        .devices![deviceIndex]
        .status = statuses;
    emitSafe(GetDeviceStatusSuccess(code: code));
  }

  ///Lights
  onHorizontalDragUpdate(DeviceModel 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);
  }

  Map<int, LightMode> lightModes = {
    0: LightMode.Doze,
    1: LightMode.Relax,
    2: LightMode.Reading,
    3: LightMode.Energizing,
  };

// setLightingMode(DeviceModel light, LightMode mode) {
//   light.lightingMode =
//       lightModes.entries.firstWhere((element) => element.value == mode).key;
//   emitSafe(LightModeChanged(mode));
// }
//
// toggleLight(DeviceModel light) {
//   light.isOnline != null ? light.isOnline = !light.isOnline! : light.isOnline = true;
//   emitSafe(LightToggled(light));
// }
//
// setColor(DeviceModel light, int color) {
//   light.color = color;
//   emitSafe(LightColorChanged(color));
// }
//
// int getBrightness(DeviceModel light) {
//   return light.brightness.toInt();
// }

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

enum LightMode {
  Doze,
  Relax,
  Reading,
  Energizing,
}