package de.apps4ics.mountainnavigation;

import android.app.Activity;
import android.graphics.Typeface;
import android.os.Environment;
import android.support.v4.view.GravityCompat;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.content.Context;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.support.v4.widget.DrawerLayout;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import org.mapsforge.core.model.LatLong;
import org.mapsforge.map.android.graphics.AndroidGraphicFactory;
import org.mapsforge.map.android.util.AndroidUtil;
import org.mapsforge.map.android.view.MapView;
import org.mapsforge.map.layer.cache.TileCache;
import org.mapsforge.map.layer.renderer.TileRendererLayer;
import org.mapsforge.map.reader.MapDataStore;
import org.mapsforge.map.reader.MapFile;
import org.mapsforge.map.rendertheme.InternalRenderTheme;

import java.io.File;
import java.lang.reflect.Type;
import java.util.List;

public class MainActivity extends ActionBarActivity
        implements NavigationDrawerFragment.NavigationDrawerCallbacks {

    /**
     * Fragment managing the behaviors, interactions and presentation of the navigation drawer.
     */
    private NavigationDrawerFragment mNavigationDrawerFragment;

    /**
     * Used to store the last screen title. For use in {@link #restoreActionBar()}.
     */
    private CharSequence mTitle;
    private CharSequence mDrawerTitle;
    // name of the map file in the external storage
    private static final String MAPFILE = "greece.map";

    private MapView mapView;
    private TileCache tileCache;
    private TileRendererLayer tileRendererLayer;

    private ActionBarDrawerToggle drawerToggle;
    private String[] entries;
    private DrawerLayout drawerLayout;
    private ListView listView;

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

        FrameLayout frameLayout = (FrameLayout) findViewById(R.id.container);

        AndroidGraphicFactory.createInstance(this.getApplication());

        mapView = new MapView(this);
        frameLayout.addView(mapView);

        mapView.setClickable(true);
        mapView.getMapScaleBar().setVisible(true);
        mapView.setBuiltInZoomControls(true);
        mapView.getMapZoomControls().setZoomLevelMin((byte) 10);
        mapView.getMapZoomControls().setZoomLevelMax((byte) 20);

        // create a tile cache of suitable size
        tileCache = AndroidUtil.createTileCache(this, "mapcache",
                mapView.getModel().displayModel.getTileSize(), 1f,
                mapView.getModel().frameBufferModel.getOverdrawFactor());

        mNavigationDrawerFragment = (NavigationDrawerFragment)
                getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
        mTitle = mDrawerTitle = getTitle();

        entries = getResources().getStringArray(R.array.toggleEntries);
        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        listView = (ListView) findViewById(R.id.navigation_drawer);

        drawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        listView.setItemsCanFocus(false);
        listView.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, entries));
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                CheckBox cb = (CheckBox) view;
                cb.setChecked(!cb.isChecked());
                if(cb.isChecked()){
                    cb.setTypeface(null, Typeface.BOLD);
                    Toast.makeText(getApplicationContext(), "Selected " + entries[position], Toast.LENGTH_SHORT).show();
                } else {
                    cb.setTypeface(null, Typeface.NORMAL);
                    Toast.makeText(getApplicationContext(), "Deselected " + entries[position], Toast.LENGTH_SHORT).show();
                }
            }
        });

                drawerLayout.setDrawerListener(drawerToggle);
    }

    @Override
    public void setTitle(CharSequence title){
        mTitle = title;
        getSupportActionBar().setTitle(mTitle);
    }

    @Override
    protected void onStart() {
        super.onStart();

        mapView.getModel().mapViewPosition.setCenter(new LatLong(37.9777, 23.7277));
        mapView.getModel().mapViewPosition.setZoomLevel((byte) 12);

        // tile renderer layer using internal render theme
        MapDataStore mapDataStore = new MapFile(getMapFile());
        tileRendererLayer = new TileRendererLayer(tileCache, mapDataStore,
                mapView.getModel().mapViewPosition, false, true, AndroidGraphicFactory.INSTANCE);
        tileRendererLayer.setXmlRenderTheme(InternalRenderTheme.OSMARENDER);

        // only once a layer is associated with a mapView the rendering starts
        mapView.getLayerManager().getLayers().add(tileRendererLayer);

    }

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

    private File getMapFile() {
        File file = new File(Environment.getExternalStorageDirectory(), MAPFILE);
        return file;
    }

    @Override
    public void onNavigationDrawerItemSelected(int position) {
        // update the main content by replacing fragments
        FragmentManager fragmentManager = getSupportFragmentManager();
        fragmentManager.beginTransaction()
                .replace(R.id.container, PlaceholderFragment.newInstance(position + 1))
                .commit();
    }

    public void onSectionAttached(int number) {
        switch (number) {
            case 1:
                mTitle = getString(R.string.title_section1);
                break;
            case 2:
                mTitle = getString(R.string.title_section2);
                break;
            case 3:
                mTitle = getString(R.string.title_section3);
                break;
        }
    }

    public void restoreActionBar() {
        ActionBar actionBar = getSupportActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
        actionBar.setDisplayShowTitleEnabled(true);
        actionBar.setTitle(mTitle);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {
        /**
         * The fragment argument representing the section number for this
         * fragment.
         */
        private static final String ARG_SECTION_NUMBER = "section_number";

        /**
         * Returns a new instance of this fragment for the given section
         * number.
         */
        public static PlaceholderFragment newInstance(int sectionNumber) {
            PlaceholderFragment fragment = new PlaceholderFragment();
            Bundle args = new Bundle();
            args.putInt(ARG_SECTION_NUMBER, sectionNumber);
            fragment.setArguments(args);
            return fragment;
        }

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }

        @Override
        public void onAttach(Activity activity) {
            super.onAttach(activity);
            ((MainActivity) activity).onSectionAttached(
                    getArguments().getInt(ARG_SECTION_NUMBER));
        }
    }

}