import 'dart:async';
import 'package:flutter/material.dart';

class DangerStatusManager extends ChangeNotifier {
  final Map<String, bool> _flameStatus = {};
  final Map<String, bool> _smokeStatus = {};
  final Map<String, bool> _flameBlinking = {};
  final Map<String, bool> _smokeBlinking = {};
  final Map<String, Timer?> _flameTimers = {};
  final Map<String, Timer?> _smokeTimers = {};

  bool isFlameDanger(String deviceId) => _flameStatus[deviceId] ?? false;
  bool isSmokeDanger(String deviceId) => _smokeStatus[deviceId] ?? false;
  bool isFlameBlinking(String deviceId) => _flameBlinking[deviceId] ?? false;
  bool isSmokeBlinking(String deviceId) => _smokeBlinking[deviceId] ?? false;

  void setFlameStatus(String deviceId, bool status) {
    if (status) {
      _startFlameTimer(deviceId);
      _flameBlinking[deviceId] = true;
    } else {
      _flameStatus[deviceId] = false;
      _flameBlinking[deviceId] = false;
      _flameTimers[deviceId]?.cancel();
      notifyListeners();
    }
  }

  void setSmokeStatus(String deviceId, bool status) {
    if (status) {
      _startSmokeTimer(deviceId);
      _smokeBlinking[deviceId] = true;
    } else {
      _smokeTimers[deviceId]?.cancel();
      _smokeTimers[deviceId] = Timer(Duration(minutes: 5), () {
        _smokeStatus[deviceId] = false;
        _smokeBlinking[deviceId] = false;
        notifyListeners();
      });
    }
    _smokeStatus[deviceId] = status;
    notifyListeners();
  }

  void _startFlameTimer(String deviceId) {
    _flameStatus[deviceId] = true;
    _flameTimers[deviceId]?.cancel();
    _flameTimers[deviceId] = Timer(Duration(minutes: 5), () {
      _flameStatus[deviceId] = false;
      _flameBlinking[deviceId] = false;
      notifyListeners();
    });
    notifyListeners();
  }

  void _startSmokeTimer(String deviceId) {
    _smokeStatus[deviceId] = true;
    _smokeTimers[deviceId]?.cancel();
    _smokeTimers[deviceId] = Timer(Duration(minutes: 5), () {
      _smokeStatus[deviceId] = false;
      _smokeBlinking[deviceId] = false;
      notifyListeners();
    });
    notifyListeners();
  }

  void resetStatus(String deviceId) {
    _flameStatus[deviceId] = false;
    _smokeStatus[deviceId] = false;
    _flameBlinking[deviceId] = false;
    _smokeBlinking[deviceId] = false;
    _flameTimers[deviceId]?.cancel();
    _smokeTimers[deviceId]?.cancel();
    notifyListeners();
  }
}