package apps.ahqmrf.kothay.tracker.ui;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.location.Location;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MapStyleOptions;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.karumi.dexter.PermissionToken;
import com.karumi.dexter.listener.PermissionDeniedResponse;
import com.karumi.dexter.listener.PermissionGrantedResponse;
import com.karumi.dexter.listener.PermissionRequest;
import com.karumi.dexter.listener.single.PermissionListener;

import apps.ahqmrf.kothay.BaseActivity;
import apps.ahqmrf.kothay.LocationUpdateService;
import apps.ahqmrf.kothay.R;
import apps.ahqmrf.kothay.util.AppUtils;
import butterknife.ButterKnife;

public class MyLocationActivity extends BaseActivity implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {

    private static final String TAG = "MY LOCATION";
    private GoogleMap mGoogleMap;
    private GoogleApiClient    mGoogleApiClient;
    private SupportMapFragment mMapFrag;
    private Marker             mCurrLocationMarker;
    private LocationManager    mLocationManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my_location);
        ButterKnife.bind(this);
    }

    @Override
    public void onViewCreated() {
        showLoader();
        showBackArrow();
        setLabel(R.string.title_my_location);

        mMapFrag = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
        mMapFrag.getMapAsync(this);
        PermissionListener permissionListener = new PermissionListener() {
            @Override
            public void onPermissionGranted(PermissionGrantedResponse response) {
                proceed();
                Intent intent = new Intent(getApplicationContext(), LocationUpdateService.class);
                stopService(intent);
                startService(intent);
            }

            @Override
            public void onPermissionDenied(PermissionDeniedResponse response) {
                AppUtils.toast(R.string.error_permission);
            }

            @Override
            public void onPermissionRationaleShouldBeShown(PermissionRequest permission, PermissionToken token) {/* ... */}
        };

        mLocationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            checkLocationPermission(permissionListener);
        } else {
            if (mLocationManager != null && !mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
                showGPSDisabledAlert();
            }
        }
    }

    private void proceed() {
        if (!mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            showGPSDisabledAlert();
        }

        if (mGoogleApiClient == null) {
            buildGoogleApiClient();
        }
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            mGoogleMap.setMyLocationEnabled(true);
        }
    }

    public void buildGoogleApiClient() {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
        mGoogleApiClient.connect();
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        mGoogleMap = googleMap;
        mGoogleMap.setPadding(0, AppUtils.dpToPx(48), 0, 0);
        mGoogleMap.setTrafficEnabled(true);
        try {
            // Customise the styling of the base map using a JSON object defined
            // in a raw resource file.
            boolean success = mGoogleMap.setMapStyle(
                    MapStyleOptions.loadRawResourceStyle(
                            this, R.raw.style_json));

            if (!success) {
                Log.e(TAG, "Style parsing failed.");
            }
        } catch (Resources.NotFoundException e) {
            Log.e(TAG, "Can't find style. Error: ", e);
        }

        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
                buildGoogleApiClient();
                mGoogleMap.setMyLocationEnabled(true);
            }
        } else {
            buildGoogleApiClient();
            mGoogleMap.setMyLocationEnabled(true);
        }
        hideLoader();
    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        LocationRequest mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(1000);
        mLocationRequest.setFastestInterval(1000);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);

        if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
        }
    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

    @Override
    public void onLocationChanged(Location location) {
        final LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
        if (mCurrLocationMarker != null) {
            mCurrLocationMarker.setPosition(latLng);
            return;
        }

        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.position(latLng);
        markerOptions.title(self.getName());
        markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
        mCurrLocationMarker = mGoogleMap.addMarker(markerOptions);

        mGoogleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 16));
    }
}