import 'dart:async';

import 'package:location_platform_interface/location_platform_interface.dart';

export 'package:location_platform_interface/location_platform_interface.dart'
    show PermissionStatus, LocationAccuracy, LocationData;

class Location {
  /// Initializes the plugin and starts listening for potential platform events.
  factory Location() => instance;

  Location._();

  static final Location instance = Location._();

  /// Change settings of the location request.
  ///
  /// The [accuracy] argument is controlling the precision of the
  /// [LocationData]. The [interval] and [distanceFilter] are controlling how
  /// often a new location is sent through [onLocationChanged].
  ///
  /// [interval] and [distanceFilter] are not used on web.
  Future<bool> changeSettings({
    LocationAccuracy accuracy = LocationAccuracy.high,
    int interval = 1000,
    double distanceFilter = 0,
  }) {
    return LocationPlatform.instance.changeSettings(
      accuracy: accuracy,
      interval: interval,
      distanceFilter: distanceFilter,
    );
  }

  /// Gets the current location of the user.
  ///
  /// Throws an error if the app has no permission to access location.
  /// Returns a [LocationData] object.
  Future<LocationData> getLocation() async {
    return LocationPlatform.instance.getLocation();
  }

  /// Checks if the app has permission to access location.
  ///
  /// If the result is [PermissionStatus.deniedForever], no dialog will be
  /// shown on [requestPermission].
  /// Returns a [PermissionStatus] object.
  Future<PermissionStatus> hasPermission() {
    return LocationPlatform.instance.hasPermission();
  }

  /// Checks if the app has permission to access location.
  ///
  /// If the result is [PermissionStatus.deniedForever], no dialog will be
  /// shown on [requestPermission].
  /// Returns a [PermissionStatus] object.
  Future<PermissionStatus> requestPermission() {
    return LocationPlatform.instance.requestPermission();
  }

  /// Checks if the location service is enabled.
  Future<bool> serviceEnabled() {
    return LocationPlatform.instance.serviceEnabled();
  }

  /// Request the activation of the location service.
  Future<bool> requestService() {
    return LocationPlatform.instance.requestService();
  }

  /// Returns a stream of [LocationData] objects.
  /// The frequency and accuracy of this stream can be changed with
  /// [changeSettings]
  ///
  /// Throws an error if the app has no permission to access location.
  Stream<LocationData> get onLocationChanged {
    return LocationPlatform.instance.onLocationChanged;
  }
}