import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:geocoding/geocoding.dart' as geo;
import 'package:location/location.dart';
import 'package:objectid/objectid.dart';

import 'generated/i18n.dart';
import 'models/yourLocation.dart';

Future<YourLocation> getUserLocation(
    GlobalKey<ScaffoldState> scaffoldKey) async {
  // Platform messages may fail, so we use a try/catch PlatformException.
  try {
    final Location location0 = Location();

    final LocationData location = await location0.getLocation();

    // It seems that the lib fails with lat/lon values
    final YourLocation yl = YourLocation(
        id: ObjectId(), lat: location.latitude!, lon: location.longitude!);
    String address;
    try {
      address = await getReverseLocation(lat: yl.lat, lon: yl.lon);
      yl.description = address;
    } catch (e) {
      try {
        address =
            await getReverseLocation(lat: yl.lat, lon: yl.lon, external: true);
        yl.description = address;
      } catch (e) {
      }
    }
    return yl;
  } on PlatformException catch (e) {
    final BuildContext? context = scaffoldKey.currentContext;
    if (context != null) {
      if (e.code == 'PERMISSION_DENIED') {
        ScaffoldMessenger.of(context).showSnackBar(SnackBar(
          content: Text(S.of(context).notPermsUbication),
        ));
      } else if (e.code == 'PERMISSION_DENIED_NEVER_ASK') {}
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text(S.of(context).isYourUbicationEnabled),
      ));
    }
    return YourLocation.noLocation;
  }
}

Future<String> getReverseLocation(
    {required double lat, required double lon, bool external = false}) async {
  try {
    final List<geo.Placemark> placemarks =
        await geo.placemarkFromCoordinates(lat, lon);
    if (placemarks.isNotEmpty) {
      final geo.Placemark first = placemarks.first;
      final String address =
          '${first.street}, ${first.locality}, ${first.administrativeArea}, ${first.country}';
      return address;
    } else {
      return 'Unable to determine address';
    }
  } catch (e) {
    throw Exception('Failed to reverse geocode: $e');
  }
}