import 'dart:convert';

import 'package:geolocator/geolocator.dart';

// ignore_for_file: public_member_api_docs, sort_constructors_first
class UserLocation {
  final double latitude;
  final double longitude;
  final DateTime timestamp;
  UserLocation(
      {required this.latitude,
      required this.longitude,
      required this.timestamp});

  static UserLocation empty() {
    return UserLocation(
        latitude: 0.0, longitude: 0.0, timestamp: DateTime.now());
  }

  factory UserLocation.fromPosition(Position position) {
    return UserLocation(
        latitude: position.latitude,
        longitude: position.longitude,
        timestamp: position.timestamp);
  }

  UserLocation copyWith({
    double? latitude,
    double? longitude,
    DateTime? timestamp,
  }) {
    return UserLocation(
      latitude: latitude ?? this.latitude,
      longitude: longitude ?? this.longitude,
      timestamp: timestamp ?? this.timestamp,
    );
  }

  Map<String, dynamic> toMap() {
    return <String, dynamic>{
      'latitude': latitude,
      'longitude': longitude,
      'timestamp': timestamp.millisecondsSinceEpoch,
    };
  }

  factory UserLocation.fromMap(Map<String, dynamic> map) {
    return UserLocation(
      latitude: map['latitude'] as double,
      longitude: map['longitude'] as double,
      timestamp: DateTime.fromMillisecondsSinceEpoch(map['timestamp'] as int),
    );
  }

  String toJson() => json.encode(toMap());

  factory UserLocation.fromJson(String source) =>
      UserLocation.fromMap(json.decode(source) as Map<String, dynamic>);
}