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

final policeAlertServiceProvider = Provider<PoliceAlertService>((ref) {
  return MockPoliceAlertService();
});

class PoliceAlert {
  final String title;
  final double distanceMiles;
  final Position location;

  PoliceAlert({
    required this.title,
    required this.distanceMiles,
    required this.location,
  });
}

abstract class PoliceAlertService {
  Future<List<PoliceAlert>> getNearbyAlerts(Position currentPosition, double heading);
}

class MockPoliceAlertService implements PoliceAlertService {
  @override
  Future<List<PoliceAlert>> getNearbyAlerts(Position currentPosition, double heading) async {
    // Return a mock alert for demonstration/testing
    // A real implementation would query a backend or a 3rd party API (if legally available)
    return [
      PoliceAlert(
        title: 'SPEED TRAP',
        distanceMiles: 0.7,
        location: Position(
          latitude: currentPosition.latitude + 0.01,
          longitude: currentPosition.longitude + 0.01,
          timestamp: DateTime.now(),
          accuracy: 5.0,
          altitude: 0.0,
          heading: 0.0,
          speed: 0.0,
          speedAccuracy: 0.0,
          altitudeAccuracy: 0.0,
          headingAccuracy: 0.0,
        ),
      )
    ];
  }
}