package com.rthoni.stssaguenay.ui.fragments;

import android.Manifest;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.maps.android.clustering.ClusterItem;
import com.google.maps.android.clustering.ClusterManager;
import com.google.maps.android.clustering.view.DefaultClusterRenderer;
import com.luticate.utils.business.LuConsumer;
import com.luticate.utils.business.LuPromise;
import com.luticate.utils.dbo.LuPromiseError;
import com.rthoni.stssaguenay.R;
import com.rthoni.stssaguenay.business.STSBusiness;
import com.rthoni.stssaguenay.business.StopsBusiness;
import com.rthoni.stssaguenay.dbo.StopsDbo;
import com.rthoni.stssaguenay.ui.activities.StopPickerActivity;
import com.rthoni.stssaguenay.ui.interfaces.OnStopClicked;

import java.util.HashMap;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;

/**
 * Created by robin on 9/29/16.
 */
public class StopMapPickerFragment extends Fragment {

    public static class StopDboMapItem implements ClusterItem {
        private LatLng _latLng;

        private StopsDbo _stopsDbo;

        StopDboMapItem(StopsDbo stopsDbo) {
            _stopsDbo = stopsDbo;
            _latLng = new LatLng(_stopsDbo.getPosY(), _stopsDbo.getPosX());
        }

        @Override
        public LatLng getPosition() {
            return _latLng;
        }

        public StopsDbo getStopsDbo() {
            return _stopsDbo;
        }
    }

    public static class StopDboMapRenderer extends DefaultClusterRenderer<StopDboMapItem> {

        private HashMap<String, StopDboMapItem> _items = new HashMap<>();

        public StopDboMapRenderer(Context context, GoogleMap map, ClusterManager<StopDboMapItem> clusterManager) {
            super(context, map, clusterManager);
        }

        @Override
        protected void onBeforeClusterItemRendered(StopDboMapItem item, MarkerOptions markerOptions) {
            markerOptions.title(item.getStopsDbo().getFullName());
            super.onBeforeClusterItemRendered(item, markerOptions);
        }

        @Override
        protected void onClusterItemRendered(StopDboMapItem clusterItem, Marker marker) {
            _items.put(marker.getId(), clusterItem);
            marker.setTag(clusterItem);
            super.onClusterItemRendered(clusterItem, marker);
        }

        public StopDboMapItem getStopItem(String id)
        {
            return _items.get(id);
        }
    }

    @BindView(R.id.mapView)
    MapView _mapView;

    private OnStopClicked _onStopSelectedConsumer;

    private GoogleMap _map;

    private List<StopsDbo> _stopsDbos;

    private StopDboMapRenderer _renderer;

    @Override
    public void onStart() {
        _mapView.onStart();
        super.onStart();
    }

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

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

    @Override
    public void onStop() {
        _mapView.onStop();
        super.onStop();
    }

    @Override
    public void onDestroy() {
        _mapView.onDestroy();
        super.onDestroy();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        _mapView.onSaveInstanceState(outState);
        super.onSaveInstanceState(outState);
    }

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

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_stop_picker_map, container, false);
        ButterKnife.bind(this, v);

        _mapView.onCreate(savedInstanceState);
        _mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(GoogleMap googleMap) {
                _map = googleMap;
                setupMap();
            }
        });

        loadStops();

        return v;
    }

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        if (context instanceof OnStopClicked) {
            _onStopSelectedConsumer = (OnStopClicked) context;
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED ||
                ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            _map.setMyLocationEnabled(true);
        }
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

    public void setupMap()
    {
        _map.getUiSettings().setMyLocationButtonEnabled(true);
        _map.getUiSettings().setCompassEnabled(true);
        _map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(48.3786565, -71.3354953), 9));
        _map.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
            @Override
            public boolean onMarkerClick(Marker marker) {
                if (marker.getTag() instanceof StopDboMapItem) {
                    Toast.makeText(getContext(), R.string.stop_add_map_help, Toast.LENGTH_LONG).show();
                }
                return false;
            }
        });
        _map.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
            @Override
            public void onInfoWindowClick(Marker marker) {
                onStopSelected(_renderer.getStopItem(marker.getId()).getStopsDbo());
            }
        });
        if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED ||
                ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            _map.setMyLocationEnabled(true);
        }
        else {
            requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 0);
        }
        if (_stopsDbos != null) {
            addStops();
        }
    }

    public void loadStops()
    {
        final ProgressDialog progressDialog = new ProgressDialog(getContext());
        progressDialog.setIndeterminate(true);
        progressDialog.setCancelable(false);
        progressDialog.show();
        progressDialog.setTitle(R.string.loading);
        progressDialog.setMessage(getString(R.string.loading_stops));

        StopsBusiness.getAll(STSBusiness.getConfig(getContext()))
                .then(new LuConsumer<List<StopsDbo>>() {
                    @Override
                    public void execute(List<StopsDbo> data) {
                        progressDialog.dismiss();
                        _stopsDbos = data;
                        if (_map != null) {
                            addStops();
                        }
                    }
                }, new LuConsumer<LuPromiseError>() {
                    @Override
                    public void execute(LuPromiseError data) {
                        progressDialog.dismiss();
                        _stopsDbos = null;
                        Toast.makeText(getContext(), data.getError(), Toast.LENGTH_LONG).show();
                    }
                });
    }

    public void addStops()
    {
        ClusterManager<StopDboMapItem> clusterManager = new ClusterManager<>(getContext(), _map);
        _renderer = new StopDboMapRenderer(getContext(), _map, clusterManager);
        clusterManager.setRenderer(_renderer);
        for (StopsDbo stopsDbo : _stopsDbos) {
            clusterManager.addItem(new StopDboMapItem(stopsDbo));
        }
        _map.setOnCameraIdleListener(clusterManager);
        _map.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(48.3786565, -71.3354953), 9));
    }

    public void onStopSelected(StopsDbo stopsDbo)
    {
        if (_onStopSelectedConsumer != null) {
            _onStopSelectedConsumer.onStopSlicker(stopsDbo);
        }
    }
}