import 'package:flutter/foundation.dart';
import 'package:geolocator/geolocator.dart';

class LocationService {
  static Future<Position?> Function()? mockDeterminator;

  static Future<Position?> determinePosition() async {
    if (mockDeterminator != null) {
      return mockDeterminator!();
    }
    try {
      bool serviceEnabled = await Geolocator.isLocationServiceEnabled();
      if (!serviceEnabled) {
        debugPrint('Location services are disabled.');
        return null;
      }

      LocationPermission permission = await Geolocator.checkPermission();
      if (permission == LocationPermission.denied) {
        permission = await Geolocator.requestPermission();
        if (permission == LocationPermission.denied) {
          debugPrint('Location permission denied.');
          return null;
        }
      }
      
      if (permission == LocationPermission.deniedForever) {
        debugPrint('Location permission denied forever.');
        return null;
      } 

      try {
        return await Geolocator.getCurrentPosition(
          desiredAccuracy: LocationAccuracy.high,
          timeLimit: const Duration(seconds: 5),
        );
      } catch (e) {
        debugPrint('getCurrentPosition failed: $e. Attempting getLastKnownPosition...');
        return await Geolocator.getLastKnownPosition();
      }
    } catch (e) {
      debugPrint('Error in LocationService: $e');
      return null;
    }
  }
}