package com.mapbox.mapboxsdk.testapp.activity.userlocation;

import android.Manifest;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.support.annotation.IdRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.annotation.UiThread;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;

import com.mapbox.mapboxsdk.camera.CameraUpdateFactory;
import com.mapbox.mapboxsdk.constants.MyLocationTracking;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.location.LocationListener;
import com.mapbox.mapboxsdk.location.LocationServices;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.TrackingSettings;
import com.mapbox.mapboxsdk.maps.widgets.MyLocationViewSettings;
import com.mapbox.mapboxsdk.testapp.R;

public class MyLocationTintActivity extends AppCompatActivity implements LocationListener {

    private MapView mapView;
    private MapboxMap mapboxMap;
    private boolean firstRun;

    private static final int PERMISSIONS_LOCATION = 0;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_location_dot_color);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
            actionBar.setDisplayShowHomeEnabled(true);
        }

        mapView = (MapView) findViewById(R.id.mapView);
        mapView.onCreate(savedInstanceState);
        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(MapboxMap map) {
                mapboxMap = map;

                // enable location updates
                toggleGps(!mapboxMap.isMyLocationEnabled());

                // add some padding
                final MyLocationViewSettings myLocationViewSettings = mapboxMap.getMyLocationViewSettings();
                myLocationViewSettings.setPadding(0, 500, 0, 0);

                // enable tracking
                TrackingSettings settings = mapboxMap.getTrackingSettings();
                settings.setDismissLocationTrackingOnGesture(false);
                settings.setMyLocationTrackingMode(MyLocationTracking.TRACKING_FOLLOW);

                // handle default button clicks
                ViewUtils.attachClickListener(
                    MyLocationTintActivity.this,
                    R.id.default_user_dot_coloring_button,
                    new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        myLocationViewSettings.setAccuracyTintColor(ContextCompat.getColor(
                            MyLocationTintActivity.this, R.color.my_location_ring));
                        myLocationViewSettings.setForegroundTintColor(ContextCompat.getColor(
                            MyLocationTintActivity.this, R.color.mapbox_blue));
                    }
                });

                // handle tint user dot button clicks
                ViewUtils.attachClickListener(
                    MyLocationTintActivity.this,
                    R.id.tint_user_dot_button,
                    new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        myLocationViewSettings.setAccuracyTintColor(
                            ContextCompat.getColor(MyLocationTintActivity.this, R.color.mapbox_green));
                        myLocationViewSettings.setForegroundTintColor(
                            ContextCompat.getColor(MyLocationTintActivity.this, R.color.mapbox_green));
                    }
                });

                // handle tint accuracy ring button clicks
                ViewUtils.attachClickListener(
                    MyLocationTintActivity.this,
                    R.id.user_accuracy_ring_tint_button,
                    new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        myLocationViewSettings.setAccuracyTintColor(
                            ContextCompat.getColor(MyLocationTintActivity.this, R.color.accent));
                        myLocationViewSettings.setForegroundTintColor(
                            ContextCompat.getColor(MyLocationTintActivity.this, R.color.mapbox_blue));
                    }
                });
            }
        });

    }

    @Override
    public void onLocationChanged(Location location) {
        if (mapboxMap != null && firstRun) {
            mapboxMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location), 15));
            firstRun = false;
        }
    }

    @Override
    protected void onStart() {
        super.onStart();
        mapView.onStart();
        LocationServices.getLocationServices(this).addLocationListener(this);
    }

    @Override
    public void onResume() {
        super.onResume();
        mapView.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
        mapView.onPause();
    }

    @Override
    protected void onStop() {
        super.onStop();
        LocationServices.getLocationServices(this).removeLocationListener(this);
        mapView.onStop();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapView.onLowMemory();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mapView.onSaveInstanceState(outState);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    @UiThread
    public void toggleGps(boolean enableGps) {
        if (enableGps) {
            if ((ContextCompat.checkSelfPermission(this,
                Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
                || (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED)) {
                ActivityCompat.requestPermissions(this, new String[]{
                    Manifest.permission.ACCESS_COARSE_LOCATION,
                    Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSIONS_LOCATION);
            } else {
                enableLocation(true);
            }
        } else {
            enableLocation(false);
        }
    }

    private void enableLocation(boolean enabled) {
        if (enabled) {
            mapboxMap.setMyLocationEnabled(true);
            if (mapboxMap.getMyLocation() != null) {
                mapboxMap.moveCamera(CameraUpdateFactory.newLatLngZoom(
                        new LatLng(mapboxMap.getMyLocation().getLatitude(),
                                mapboxMap.getMyLocation().getLongitude()), 15));
            }
        } else {
            mapboxMap.setMyLocationEnabled(false);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == PERMISSIONS_LOCATION) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                enableLocation(true);
            }
        }
    }

    private static class ViewUtils {

        public static void attachClickListener(
            @NonNull Activity activity, @IdRes int buttonId, @Nullable View.OnClickListener clickListener) {
            View view = activity.findViewById(buttonId);
            if (view != null) {
                view.setOnClickListener(clickListener);
            }
        }
    }
}