package com.weikou.beibeivideo.ui.media;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import com.weikou.beibeivideo.entity.VideoInfo;
import com.weikou.beibeivideo.util.VideoUtil;

public class EpisodePagerAdapter extends FragmentPagerAdapter {

    private VideoInfo mVideoInfo;

    private int mPlayingPosition;

    private String fromName;
    private int pageSize;

    public EpisodePagerAdapter(FragmentManager fm, VideoInfo videoInfo,
                               int playingPosition, int pageSize, String from) {
        super(fm);
        this.mVideoInfo = videoInfo;
        this.mPlayingPosition = playingPosition;
        this.fromName = from;
        this.pageSize = pageSize;
    }

    @Override
    public Fragment getItem(int position) {
        int start = position * 20;
        int end = start + 20;
        if (end > VideoUtil.videoEpisodeList.size()) {
            end = VideoUtil.videoEpisodeList.size();
        }
        return EpisodeFragment.newInstance(mVideoInfo, getPlayingPosition(), pageSize, start,
                end, fromName);
    }

    @Override
    public int getCount() {
        return 1;
    }

    @Override
    public int getItemPosition(Object object) {
        if (((EpisodeFragment) object).isPlaying()
                || ((EpisodeFragment) object).isVisible()) {
            return POSITION_NONE;
        }
        return super.getItemPosition(object);
    }

    public int getPlayingPosition() {
        return mPlayingPosition;
    }

    public void setPlayingPosition(int playingPosition) {
        this.mPlayingPosition = playingPosition;
        notifyDataSetChanged();
    }
}