import 'package:flutter/material.dart';
import 'package:background_location/background_location.dart';
import 'package:flutter/foundation.dart';

class BgLocation extends StatefulWidget {
  static const routeName = 'bg-location';
  const BgLocation({super.key});

  @override
  State<BgLocation> createState() => _BgLocationState();
}

class _BgLocationState extends State<BgLocation> {
  String latitude = 'waiting...';
  String longitude = 'waiting...';
  String altitude = 'waiting...';
  String accuracy = 'waiting...';
  String bearing = 'waiting...';
  String speed = 'waiting...';
  String time = 'waiting...';

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Background Location Service'),
      ),
      body: Center(
        child: ListView(
          children: <Widget>[
            locationData('Latitude: $latitude'),
            locationData('Longitude: $longitude'),
            locationData('Altitude: $altitude'),
            locationData('Accuracy: $accuracy'),
            locationData('Bearing: $bearing'),
            locationData('Speed: $speed'),
            locationData('Time: $time'),
            ElevatedButton(
                onPressed: () async {
                  await BackgroundLocation.setAndroidNotification(
                    title: 'Background service is running',
                    message: 'Background location in progress',
                    icon: '@mipmap/ic_launcher',
                  );
                  await BackgroundLocation.setAndroidConfiguration(60000);
                  await BackgroundLocation.startLocationService(
                      distanceFilter: 20);
                  BackgroundLocation.getLocationUpdates((location) {
                    setState(() {
                      latitude = location.latitude.toString();
                      longitude = location.longitude.toString();
                      accuracy = location.accuracy.toString();
                      altitude = location.altitude.toString();
                      bearing = location.bearing.toString();
                      speed = location.speed.toString();
                      time = DateTime.fromMillisecondsSinceEpoch(
                              location.time!.toInt())
                          .toString();
                    });
                    if (kDebugMode) {
                      print('''\n
                        Latitude:  $latitude
                        Longitude: $longitude
                        Altitude: $altitude
                        Accuracy: $accuracy
                        Bearing:  $bearing
                        Speed: $speed
                        Time: $time
                      ''');
                    }
                  });
                },
                child: const Text('Start Location Service')),
            ElevatedButton(
                onPressed: () {
                  BackgroundLocation.stopLocationService();
                },
                child: const Text('Stop Location Service')),
            ElevatedButton(
                onPressed: () {
                  getCurrentLocation();
                },
                child: const Text('Get Current Location')),
          ],
        ),
      ),
    );
  }

  Widget locationData(String data) {
    return Text(
      data,
      style: const TextStyle(
        fontWeight: FontWeight.bold,
        fontSize: 18,
      ),
      textAlign: TextAlign.center,
    );
  }

  void getCurrentLocation() {
    BackgroundLocation().getCurrentLocation().then((location) {
      if (kDebugMode) {
        print('This is current Location ${location.toMap()}');
      }
    });
  }

  @override
  void dispose() {
    BackgroundLocation.stopLocationService();
    super.dispose();
  }
}