package org.fox.ttcomics2;


import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v7.app.ActionBar;
import android.util.Log;
import android.view.GestureDetector;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;

import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;

import org.fox.ttcomics2.archive.ComicArchive;

import java.io.IOException;

import icepick.State;
import it.sephiroth.android.library.imagezoom.ImageViewTouch;

public class ComicFragment extends StateSavedFragment {
	private final String TAG = this.getClass().getSimpleName();
	
	private SharedPreferences m_prefs;
	@State protected int m_page;
	private ViewComicActivity m_activity;
	private GestureDetector m_detector;
	@State protected boolean m_thumbnail = false;
    @State protected ComicArchive m_archive;
	
	public ComicFragment() {
		super();
	}

    public void initialize(ComicArchive archive, int page) {
        m_archive = archive;
        m_page = page;
    }

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {    	
		
		View view = inflater.inflate(R.layout.fragment_comic, container, false);
		
		final ImageViewTouch image = view.findViewById(R.id.comic_image);
        image.setFitToScreen(true);

		try {
			Glide.with(ComicFragment.this)
                .load(m_archive.getByteArray(m_page))
				.dontAnimate()
				.diskCacheStrategy(DiskCacheStrategy.NONE)
				.skipMemoryCache(true)
                .into(image);
		} catch (IOException e) {
			image.setImageResource(R.drawable.badimage);
			e.printStackTrace();
		}

        image.setOnScaleChangedListener(new ImageViewTouch.OnScaleChangedListener() {
            @Override
            public void onScaleChanged(float scale) {
                // TODO: shared scale change?
            }
        });

        image.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent event) {
                return m_detector.onTouchEvent(event);
            }
        });
			
		//}
		
		return view;
		
	}
	
	private void onLeftSideTapped() {
		ImageViewTouch image = getView().findViewById(R.id.comic_image);
		
		if (image != null) {
			boolean atLeftEdge = !image.canScroll(1);
			
			if (atLeftEdge) {
				m_activity.selectPreviousComic();
			}
		}
	}

	private void onRightSideTapped() {
		ImageViewTouch image = getView().findViewById(R.id.comic_image);
		
		if (image != null) {
			boolean atRightEdge = !image.canScroll(-1);
			
			if (atRightEdge) {
				m_activity.selectNextComic();
			}
		}
	}

	@Override
	public void setUserVisibleHint(boolean isVisibleToUser) {
		super.setUserVisibleHint(isVisibleToUser);
		
		//setThumbnail(!isVisibleToUser); disabled
	}
	
	@Override
	public void onAttach(Activity activity) {
		super.onAttach(activity);
		
		m_prefs = PreferenceManager.getDefaultSharedPreferences(activity.getApplicationContext());
		m_activity = (ViewComicActivity) activity;
		
		m_detector = new GestureDetector(m_activity, new GestureDetector.OnGestureListener() {
			
			@Override
			public boolean onSingleTapUp(MotionEvent e) {
				int width = getView().getWidth();
				int x = Math.round(e.getX());

				if (x <= width/10) {
					onLeftSideTapped();

					return true;
				} else if (x >= width-(width/10)) {
					onRightSideTapped();

					return true;
				}

				return false;
			}
			
			@Override
			public void onShowPress(MotionEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
					float distanceY) {
				// TODO Auto-generated method stub
				return false;
			}
			
			@Override
			public void onLongPress(MotionEvent e) {
				// TODO Auto-generated method stub
				
			}
			
			@Override
			public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
					float velocityY) {
				// TODO Auto-generated method stub
				return false;
			}
			
			@Override
			public boolean onDown(MotionEvent e) {
				// TODO Auto-generated method stub
				return false;
			}
		});

		m_detector.setOnDoubleTapListener(new GestureDetector.OnDoubleTapListener() {
			@Override
			public boolean onSingleTapConfirmed(MotionEvent e) {

				int width = getView().getWidth();
				int x = Math.round(e.getX());
				boolean fullScreenMode = m_prefs.getBoolean("use_full_screen", false);

				if (x > width/10 && x < width-(width/10)) {
					ActionBar bar = m_activity.getSupportActionBar();

					if (bar.isShowing()) {
						bar.hide();
						m_activity.hideSeekBar(true);

						if (fullScreenMode) {
							m_activity.hideSystemUI(true);
						}

					} else {
						m_activity.hideSeekBar(false);

						if (fullScreenMode) {
							m_activity.hideSystemUI(false);
						}

						bar.show();
					}

					return true;
				}

				return false;
			}

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

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

	}

}