import 'package:url_launcher/url_launcher.dart';
import '../../core/constants/app_constants.dart';

class NavigationService {
  static final NavigationService _instance = NavigationService._internal();
  factory NavigationService() => _instance;
  NavigationService._internal();

  Future<bool> openGoogleMapsNavigation({
    required double destinationLat,
    required double destinationLng,
    double? originLat,
    double? originLng,
  }) async {
    try {
      // Try Google Maps first
      final googleMapsUrl = Uri.parse(
        '${AppConstants.googleMapsUrlScheme}?daddr=$destinationLat,$destinationLng' +
            (originLat != null && originLng != null
                ? '&saddr=$originLat,$originLng'
                : '') +
            '&directionsmode=driving',
      );

      if (await canLaunchUrl(googleMapsUrl)) {
        await launchUrl(googleMapsUrl);
        return true;
      }

      // Fallback to web URL if Google Maps app is not installed
      final webUrl = Uri.parse(
        'https://www.google.com/maps/dir/?api=1' +
            '&destination=$destinationLat,$destinationLng' +
            (originLat != null && originLng != null
                ? '&origin=$originLat,$originLng'
                : '') +
            '&travelmode=driving',
      );

      if (await canLaunchUrl(webUrl)) {
        await launchUrl(webUrl, mode: LaunchMode.externalApplication);
        return true;
      }

      return false;
    } catch (e) {
      print('Error opening navigation: $e');
      return false;
    }
  }

  Future<bool> openAppleMapsNavigation({
    required double destinationLat,
    required double destinationLng,
    String? destinationName,
  }) async {
    try {
      final appleMapsUrl = Uri.parse(
        '${AppConstants.appleMapsUrlScheme}?daddr=$destinationLat,$destinationLng' +
            (destinationName != null ? '&q=$destinationName' : ''),
      );

      if (await canLaunchUrl(appleMapsUrl)) {
        await launchUrl(appleMapsUrl);
        return true;
      }

      return false;
    } catch (e) {
      print('Error opening Apple Maps: $e');
      return false;
    }
  }

  Future<bool> openNavigation({
    required double destinationLat,
    required double destinationLng,
    double? originLat,
    double? originLng,
    String? destinationName,
  }) async {
    // Try Google Maps first
    final googleMapsSuccess = await openGoogleMapsNavigation(
      destinationLat: destinationLat,
      destinationLng: destinationLng,
      originLat: originLat,
      originLng: originLng,
    );

    if (googleMapsSuccess) {
      return true;
    }

    // Try Apple Maps as fallback
    return await openAppleMapsNavigation(
      destinationLat: destinationLat,
      destinationLng: destinationLng,
      destinationName: destinationName,
    );
  }
}