using System;
using Android.App;
using Android.Content;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Locations;
using System.Collections.Generic;
using Android.Util;
using System.Linq;

namespace LoyaltyCheckInAndroid
{
    [Activity(Label = "LoyaltyCheckIn", MainLauncher = true, Icon = "@drawable/icon")]
    public class MainActivity : Activity, ILocationListener
    {
        Location _currentLocation;
        LocationManager _locationManager;

        string _locationProvider;

        TextView txtLatitude;
        TextView txtLongitude;

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            SetContentView(Resource.Layout.Main);

            txtLatitude = FindViewById<TextView>(Resource.Id.Latitude);
            txtLongitude = FindViewById<TextView>(Resource.Id.Longitude);
            FindViewById<TextView>(Resource.Id.btnCheckIn).Click += BtnCheckIn_OnClick;

            InitializeLocationManager();
        }

        protected override void OnResume()
        {
            base.OnResume();
            string Provider = LocationManager.GpsProvider;

            if (_locationManager.IsProviderEnabled(Provider))
            {
                _locationManager.RequestLocationUpdates(Provider, 2000, 1, this);
            }
            else
            {
            }
        }

        protected override void OnPause()
        {
            base.OnPause();
            _locationManager.RemoveUpdates(this);
        }

        void BtnCheckIn_OnClick(object sender, EventArgs eventArgs)
        {
            if (_currentLocation == null)
            {
                txtLongitude.Text = "???";
                txtLatitude.Text = "???";

                return;
            }
            //ovde prati za foursqre
            txtLatitude.Text = _currentLocation.Latitude.ToString();
            txtLongitude.Text = _currentLocation.Longitude.ToString();
        }

        void InitializeLocationManager()
        {
            _locationManager = GetSystemService(Context.LocationService) as LocationManager;
            Criteria locationCriteria = new Criteria();

            locationCriteria.Accuracy = Accuracy.Coarse;
            locationCriteria.PowerRequirement = Power.Medium;

            _locationProvider = _locationManager.GetBestProvider(locationCriteria, true);

            if (_locationProvider != null)
            {
                _locationManager.RequestLocationUpdates(_locationProvider, 2000, 1, this);
            }
            else
            {

            }
        }

        public void OnLocationChanged(Location location)
        {
            _currentLocation = location;
        }

        public void OnProviderDisabled(string provider) { }

        public void OnProviderEnabled(string provider) { }

        public void OnStatusChanged(string provider, Availability status, Bundle extras) { }
    }
}