package com.sajjady.simplegis;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.annotation.SuppressLint;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.PointF;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewOverlay;
import android.widget.Button;

import com.mapbox.android.gestures.AndroidGesturesManager;
import com.mapbox.android.gestures.BaseGesture;
import com.mapbox.android.gestures.ShoveGestureDetector;
import com.mapbox.android.gestures.StandardGestureDetector;
import com.mapbox.geojson.Feature;
import com.mapbox.geojson.FeatureCollection;
import com.mapbox.geojson.LineString;
import com.mapbox.geojson.Point;
import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.maps.Projection;
import com.mapbox.mapboxsdk.maps.Style;
import com.mapbox.mapboxsdk.plugins.annotation.LineManager;
import com.mapbox.mapboxsdk.plugins.annotation.SymbolManager;
import com.mapbox.mapboxsdk.plugins.annotation.SymbolOptions;
import com.mapbox.mapboxsdk.style.layers.LineLayer;
import com.mapbox.mapboxsdk.style.layers.Property;
import com.mapbox.mapboxsdk.style.layers.PropertyFactory;
import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
import com.mapbox.mapboxsdk.style.layers.TransitionOptions;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;

import java.util.ArrayList;


public class MainActivity extends AppCompatActivity {
    private MapboxMap mapboxMap;
    private static final String TAG = "MainActivity";
    private MapView mapView;
    private Button buttonMove;
    private Boolean mapIsMotionLess = false;
    private LineManager lineManager;
    private Handler handler = new Handler();
    private Style style;
    private AndroidGesturesManager gesturesManager;
    private LatLng animatedPosition;
    private Boolean screenIsLockedFor = false;
    private GeoJsonSource geoJsonSource;
    private Runnable runnableCode = new Runnable() {
        @Override
        public void run() {
            if (gesturesManager.getDetectors().get(0).getCurrentEvent().getAction() != MotionEvent.ACTION_UP) {
                handler.postDelayed(this, 100);
            } else {
                screenIsLockedFor = false;
                removeLayerAndSource(style, "linelayer", "line-source");
                handler.removeCallbacks(this);
            }
        }

    };

    // Create the Handler object (on the main thread by default)
    @SuppressLint("ClickableViewAccessibility")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Mapbox.getInstance(this, "sk.eyJ1Ijoic2R5dXNzdWYiLCJhIjoiY2p4ZmxoOWoyMDhteTNubDFnMnJzZjJmZSJ9.Ac-TKeogqZR7iNzChWSFxA");
        setContentView(R.layout.activity_main);

        buttonMove = findViewById(R.id.lock_move);
        mapView = findViewById(R.id.mapView);
        mapView.onCreate(savedInstanceState);
        mapView.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(@NonNull MapboxMap mapboxMap) {
                MainActivity.this.mapboxMap = mapboxMap;
                mapboxMap.setStyle(Style.LIGHT, new Style.OnStyleLoaded() {

                    @SuppressLint("ClickableViewAccessibility")
                    @Override
                    public void onStyleLoaded(@NonNull Style style) {
                        MainActivity.this.style = style;
                        style.setTransition(new TransitionOptions(0, 0, true));
                        style.addImage("marker-icon-id",
                                BitmapFactory.decodeResource(
                                        MainActivity.this.getResources(), R.drawable.mapbox_marker_icon_default));
                        GeoJsonSource geoJsonSource = new GeoJsonSource("source-id", Feature.fromGeometry(
                                Point.fromLngLat(-87.679, 41.885)));
                        style.addSource(geoJsonSource);
                        SymbolLayer symbolLayer = new SymbolLayer("layer-id", "source-id");
                        symbolLayer.withProperties(
                                PropertyFactory.iconImage("marker-icon-id")
                        );
                        style.addLayer(symbolLayer);
                        //------
                        // second marker
                        style.addImage("marker-icon-id2",
                                BitmapFactory.decodeResource(
                                        MainActivity.this.getResources(), R.drawable.mapbox_marker_icon_default));
                        GeoJsonSource geoJsonSource2 = new GeoJsonSource("source-id2", Feature.fromGeometry(
                                Point.fromLngLat(36.2605, 59.6168)));
                        style.addSource(geoJsonSource2);
                        SymbolLayer symbolLayer2 = new SymbolLayer("layer-id2", "source-id2");
                        symbolLayer2.withProperties(
                                PropertyFactory.iconImage("marker-icon-id2")
                        );
                        style.addLayer(symbolLayer2);
                        lineManager = new LineManager(mapView, mapboxMap, style);
                        buttonMove.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View view) {
                                changeMapMotionStatus();
                            }
                        });

                        AndroidGesturesManager gesturesManager = mapboxMap.getGesturesManager();
                        MainActivity.this.gesturesManager = gesturesManager;
                        gesturesManager.setStandardGestureListener(new StandardGestureDetector.StandardOnGestureListener() {
                            @Override
                            public boolean onSingleTapConfirmed(MotionEvent motionEvent) {
                                return false;
                            }

                            @Override
                            public boolean onDoubleTap(MotionEvent motionEvent) {
                                return false;
                            }

                            @Override
                            public boolean onDoubleTapEvent(MotionEvent motionEvent) {
                                return false;
                            }

                            @Override
                            public boolean onDown(MotionEvent motionEvent) {
                                if (mapIsMotionLess) {
                                    if (!screenIsLockedFor) {
                                        handler.post(runnableCode);
                                    }
                                    screenIsLockedFor = true;
                                    matchLine(motionEvent, style);
                                }
                                return true;
                            }

                            @Override
                            public void onShowPress(MotionEvent motionEvent) {

                            }

                            @Override
                            public boolean onSingleTapUp(MotionEvent motionEvent) {
                                return false;
                            }

                            @Override
                            public boolean onScroll(MotionEvent firstEvent, MotionEvent secondEvent, float distanceX, float distanceY) {
                                if (mapIsMotionLess) {
                                    if (!screenIsLockedFor) {
                                        handler.post(runnableCode);
                                    }
                                    screenIsLockedFor = true;
                                    matchLine(secondEvent, style);
                                    Log.e(TAG, "onScroll: second" + secondEvent.getAction());
                                }
                                return true;
                            }

                            @Override
                            public void onLongPress(MotionEvent motionEvent) {
                                removeLayerAndSource(style, "linelayer", "line-source");
                            }

                            @Override
                            public boolean onFling(MotionEvent motionEvent, MotionEvent motionEvent1, float v, float v1) {
                                return false;
                            }
                        });

                    }
                });
            }
        });
    }

    private void changeMapMotionStatus() {
        mapboxMap.getUiSettings().setZoomGesturesEnabled(mapIsMotionLess);
        mapboxMap.getUiSettings().setScrollGesturesEnabled(mapIsMotionLess);
        mapIsMotionLess = !mapIsMotionLess;
    }

    // Add the mapView's own lifecycle methods to the activity's lifecycle methods
    @Override
    public void onStart() {
        super.onStart();
        mapView.onStart();
    }

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

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

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

    private void matchLine(MotionEvent motionEvent, @NonNull Style style) {
        LatLng endPointLatLng = motionEventPointToLatLng(new PointF(), motionEvent);
        ArrayList<Point> routeCoordinates = getCoordinates(endPointLatLng);
        if (style.getSource("line-source") == null) {
            drawLine(style, routeCoordinates);
        } else {
            geoJsonSource.setGeoJson(FeatureCollection.fromFeatures(new Feature[]{Feature.fromGeometry(
                    LineString.fromLngLats(routeCoordinates)
            )}));
            /*removeLayerAndSource(style, "linelayer", "line-source");
            drawLine(style, routeCoordinates);*/
        }
    }

    private LatLng motionEventPointToLatLng(PointF pointF, MotionEvent motionEvent) {
        pointF.x = motionEvent.getX();
        pointF.y = motionEvent.getY();
        Projection projection = mapboxMap.getProjection();
        return projection.fromScreenLocation(pointF);
    }

    private void removeLayerAndSource(Style style, String layerName, String sourceName) {
        style.removeLayer(layerName);
        style.removeSource(sourceName);
    }

    private ArrayList<Point> getCoordinates(LatLng endPoint) {
        ArrayList<Point> routeCoordinates = new ArrayList<>();
        routeCoordinates.add(Point.fromLngLat(endPoint.getLongitude(), endPoint.getLatitude()));
        routeCoordinates.add(Point.fromLngLat(-87.679, 41.885));
        return routeCoordinates;
    }

    private void drawLine(Style style, ArrayList<Point> routeCoordinates) {
        style.addLayer(new LineLayer("linelayer", "line-source").withProperties(
                PropertyFactory.lineDasharray(new Float[]{0.01f, 2f}),
                PropertyFactory.lineCap(Property.LINE_CAP_ROUND),
                PropertyFactory.lineJoin(Property.LINE_JOIN_ROUND),
                PropertyFactory.lineWidth(5f),
                PropertyFactory.lineColor(Color.parseColor("#e55e5e"))
        ));
        geoJsonSource = new GeoJsonSource("line-source",
                FeatureCollection.fromFeatures(new Feature[]{Feature.fromGeometry(
                        LineString.fromLngLats(routeCoordinates)
                )}));
        style.addSource(geoJsonSource);

    }

}