import 'package:geolocator/geolocator.dart';
import 'package:permission_handler/permission_handler.dart';

class LocationService {
  static Future<bool> checkLocationPermission() async {
    LocationPermission permission = await Geolocator.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await Geolocator.requestPermission();
    }
    return permission == LocationPermission.whileInUse || 
           permission == LocationPermission.always;
  }

  static Future<bool> checkCameraPermission() async {
    PermissionStatus status = await Permission.camera.status;
    if (status.isDenied) {
      status = await Permission.camera.request();
    }
    return status.isGranted;
  }

  static Future<Position?> getCurrentPosition() async {
    try {
      bool hasPermission = await checkLocationPermission();
      if (!hasPermission) return null;

      return await Geolocator.getCurrentPosition(
        desiredAccuracy: LocationAccuracy.high,
      );
    } catch (e) {
      return null;
    }
  }

  static double calculateDistance(
    double lat1, double lon1,
    double lat2, double lon2,
  ) {
    return Geolocator.distanceBetween(lat1, lon1, lat2, lon2);
  }

  static bool isWithinRange(
    double currentLat, double currentLon,
    double targetLat, double targetLon,
    {double rangeInMeters = 50.0}
  ) {
    double distance = calculateDistance(currentLat, currentLon, targetLat, targetLon);
    return distance <= rangeInMeters;
  }
}