package com.wasu.cs.ui;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.SparseArray;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.OvershootInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.TextView;
import android.widget.Toast;

import com.facebook.drawee.view.SimpleDraweeView;
import com.wasu.cs.model.CatData;
import com.wasu.cs.model.DemandProgram;
import com.wasu.cs.mvp.IView.INeteaseNewsView;
import com.wasu.cs.mvp.presenter.NeteaseNewsPresenter;
import com.wasu.cs.utils.RelativeDateUtils;
import com.wasu.cs.widget.NeteaseNewsVideoLayout;
import com.wasu.cs.widget.SpacesItemDecoration;
import com.wasu.cs.widget.TabFocusRecycleView;
import com.wasu.cs.widget.videoview.WasuPlayerView;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

import cn.com.wasu.main.R;


/**
 * Created by chenming on 2016/8/1.
 *
 * @author chenming
 * @Description: 网易新闻专区body部分，用来播放新闻视频
 * @email chenming@wasu.com
 * @date 2016/8/1
 */

public class FragmentNeteaseNewsBody extends Fragment implements INeteaseNewsView,
		NeteaseNewsVideoLayout.PlayIndexChangedListener {

	private static final String TAG = "FragmentNeteaseNewsBody";
	//presenter
	private NeteaseNewsPresenter neteaseNewsPresenter;
	//UI
	private NeteaseNewsVideoLayout mNewsVideoLayout;
	private RecyclerView mRecyclerView;
	private TabFocusRecycleView mTabs;
	private LinearLayoutManager mLinearLayoutManager;
	private MyAdapter adapter;
	private TranslateAnimation shakeAnim;
	private ActivityNeteaseNews parentActivity;
	//数据
	private Date curDate;                       //记录fragment创建时的时间点
	private SparseArray<CatData> columeLists;//所有tab下的视频资产列表
	private int curPlayingTabIndex = 0;
	private int curPlayingListIndex = 0;
	private int tabcount;
	private DemandProgram mDemandProgram;
	private String assetjsonurl;
	private Handler mHandler;
	private static final int MSG_GETREC=0;
	private static final int MSG_GETCATDATA=1;
	private boolean onGetRecData=false;


	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

		View bodyview = inflater.inflate(R.layout.fragment_neteasenews_newsbody, container, false);
		findViewsById(bodyview);
		initRecyclerView();
		initTabRecyclerview();
		initVideoLayout();
		initAnimation();
		return bodyview;
	}


	//初始化videolayout
	private void initVideoLayout() {
		mNewsVideoLayout.setFocusable(true);
		mNewsVideoLayout.setOnPlayIndexChangedListener(this);
		mNewsVideoLayout.setNextFocusRightId(R.id.netease_news_list);
		mNewsVideoLayout.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View v) {
				mNewsVideoLayout.toggleFullScreen();
			}
		});
		mNewsVideoLayout.setOnScreenChangedListener(new WasuPlayerView.OnScreenChangedListener() {
			@Override
			public void onScreenChanged(boolean isFullScreen) {
				if (!isFullScreen) {
					if (mNewsVideoLayout != null) {
						mNewsVideoLayout.requestFocus();
					}
				}
			}
		});
		mNewsVideoLayout.setOnKeyListener(new View.OnKeyListener() {
			@Override
			public boolean onKey(View v, int keyCode, KeyEvent event) {
				if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT && event.getAction() == KeyEvent.ACTION_DOWN) {
					if (mRecyclerView == null) {
						return true;
					} else if (mRecyclerView != null & adapter != null) {
						mRecyclerView.requestFocus();
						return true;
					}
				}
				return false;
			}
		});


	}

	/**
	 * 初始化晃动动画实例
	 */
	private void initAnimation() {
		curDate = new Date();
		shakeAnim = new TranslateAnimation(0, 0, 4, -4);
		shakeAnim.setInterpolator(new OvershootInterpolator());
		shakeAnim.setDuration(100);
		shakeAnim.setRepeatCount(3);
		shakeAnim.setRepeatMode(Animation.REVERSE);
	}

	//初始化tab栏
	private void initTabRecyclerview() {
		//初始化tabs
		mTabs.setLayoutAndDrawable(R.layout.item_netease_right_tab,
				getResources().getDrawable(R.drawable.tab_normal_bg),
				getResources().getDrawable(R.drawable.tab_focus_redbg),
				getResources().getDrawable(R.drawable.tab_indicator_bg));
		mTabs.setOnItemFocusChangeListener(new TabFocusRecycleView.OnItemFocusChangeListener() {
			@Override
			public void onFocusChange(int position) {
				//右侧tab切换，新闻列表对应进行刷新
				if (adapter != null) {
					if (position != curPlayingTabIndex) {
						adapter.isPlayingIndex = -1;
					} else {
						adapter.isPlayingIndex = curPlayingListIndex;
					}
				}
				updataNewsList(position);
			}
		});
		mTabs.setLeftFocusView(mRecyclerView);
	}

	private void updataNewsList(int index){
		if (adapter==null){
			return;
		}
		if (columeLists.get(index) != null) {
			adapter.setAssetElements(columeLists.get(index).getAssets());
			adapter.notifyDataSetChanged();
		}else {
			Toast.makeText(getActivity(), "正在为您请求数据...", Toast.LENGTH_SHORT).show();
			adapter.removeAllData();
			neteaseNewsPresenter.getCatData(index);
		}
	}
	//初始化新闻列表
	private void initRecyclerView() {
		mRecyclerView.setHasFixedSize(true);
		int spacingInPixels = getResources().getDimensionPixelOffset(R.dimen.d_7dp);        //设置recycleview item间隔
		mRecyclerView.addItemDecoration(new SpacesItemDecoration(spacingInPixels, 1));
		mRecyclerView.setItemAnimator(new DefaultItemAnimator());
		mLinearLayoutManager = new LinearLayoutManager(getActivity());
		mRecyclerView.setLayoutManager(mLinearLayoutManager);
		mRecyclerView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
			@Override
			public void onFocusChange(View v, boolean hasFocus) {
				int lastfocusedindex = -1;
				if (adapter != null) {
					lastfocusedindex = adapter.getFocusIndex();
				}
				if (hasFocus && lastfocusedindex >= 0) {
					if (curPlayingTabIndex == mTabs.getViewPos()) {//判断当tab下有正在播放的资产时，列表滚动到正在播放的位置
						mLinearLayoutManager.scrollToPosition(curPlayingListIndex);
					}
				}
				if (mLinearLayoutManager == null || mRecyclerView == null) {
					return;
				}
				if (mRecyclerView.findViewHolderForAdapterPosition(
						mLinearLayoutManager.findFirstCompletelyVisibleItemPosition()) != null) {
					mRecyclerView.findViewHolderForAdapterPosition(
							mLinearLayoutManager.findFirstCompletelyVisibleItemPosition()).itemView.requestFocus();
				}
			}
		});


	}

	private void findViewsById(View bodyview) {
		mNewsVideoLayout = (NeteaseNewsVideoLayout) bodyview.findViewById(R.id.neteasenewsvideolay);
		mTabs = (TabFocusRecycleView) bodyview.findViewById(R.id.netease_tabs);
		mRecyclerView = (RecyclerView) bodyview.findViewById(R.id.netease_news_list);

	}

	/**
	 * 连播回调方法
	 *
	 * @param index
	 */
	@Override
	public void onCurrentIndex(int index) {

		if (mRecyclerView != null) {
			//当联播index超出屏幕显示范围，增加判断让列表滚动到正在播放的位置，防止程序崩溃
			if (index >= mLinearLayoutManager.findLastVisibleItemPosition() ||
					index <= mLinearLayoutManager.findFirstVisibleItemPosition()) {
				mLinearLayoutManager.scrollToPositionWithOffset(index, 0);
			}
			adapter.showIsPlayingTag((MyAdapter.ItemViewHolder) mRecyclerView.findViewHolderForAdapterPosition(index), index);
			curPlayingListIndex = index;
			adapter.isPlayingIndex = index;//更新适配器播放位置
		}
	}


	/**
	 * 清楚索引
	 *
	 * @param index
	 */
	@Override
	public void cleanPlayIndex(int index) {
		if (adapter != null) {
			curPlayingListIndex = -1;
			curPlayingTabIndex = -1;
		}
	}


	@Override
	public void onActivityCreated(@Nullable Bundle savedInstanceState) {
		super.onActivityCreated(savedInstanceState);
		parentActivity = (ActivityNeteaseNews)getActivity();
		String CAT_URL = parentActivity.getCAT_URL();
		parentActivity.showLoading();
		//初始化presenter
		neteaseNewsPresenter = new NeteaseNewsPresenter();
		neteaseNewsPresenter.attachView(this);
		neteaseNewsPresenter.getNeteaseNewsData(CAT_URL);
		mHandler = new Handler(){
			@Override
			public void handleMessage(Message msg) {

				switch (msg.what){
					case MSG_GETREC:
						onGetRecData = true;
						playRecVideo();
						break;
					case MSG_GETCATDATA:
						if (!onGetRecData){
							return;
						}
						if (!mNewsVideoLayout.isPlaying() && columeLists.get(0) != null) {
							playvideo(0, 0);
						}
						break;
				}
				super.handleMessage(msg);
			}
		};
	}


	/**
	 * 播放某个tab下的某部资产
	 *
	 * @param tabindex
	 * @param listindex
	 */
	private void playvideo(int tabindex, int listindex) {
		mNewsVideoLayout.playVideo(tabindex, listindex);
		adapter.showIsPlayingTag((MyAdapter.ItemViewHolder) mRecyclerView.findViewHolderForAdapterPosition(listindex), listindex);
		savePlayingState(tabindex, listindex);
	}

	/**
	 * 记录播放的tab位置和该tab下列表的位置
	 *
	 * @param tab
	 * @param list
	 */
	public void savePlayingState(int tab, int list) {
		curPlayingTabIndex = tab;//更新正在播放的tab的index
		curPlayingListIndex = list;//更新正在播放的列表资产index
	}

	/**
	 * 数据获取失败后的回调
	 *
	 * @param throwable
	 */
	@Override
	public void ongetDataFailed(Throwable throwable) {
		Toast.makeText(getActivity(), "服务器开小差去了，请稍后重试", Toast.LENGTH_SHORT).show();
		throwable.printStackTrace();
	}

	@Override
	public void onGetRecVideoUrl(String assetjsonurl,DemandProgram demandProgram) {
		this.mDemandProgram = demandProgram;
		this.assetjsonurl= assetjsonurl;
		mHandler.sendEmptyMessage(0);
	}

	/*private void firstPlayLogic(){
		if (mDemandProgram != null && assetjsonurl != null) {
			mNewsVideoLayout.playRecVideo(assetjsonurl,mDemandProgram);//play rec news video
			curPlayingListIndex = -1;
		} else if (columeLists.get(0) != null) {
			playvideo(0, 0);
		}
	}*/
	private void playRecVideo(){
		if (mDemandProgram != null && assetjsonurl != null) {
			mNewsVideoLayout.playRecVideo(assetjsonurl,mDemandProgram);//play rec news video
			curPlayingListIndex = -1;
		}else {
			mHandler.sendEmptyMessage(MSG_GETCATDATA);
		}
	}

	private void initAdapterData(CatData catData){
		//WLog.d("cm","init adapter");
		adapter = new MyAdapter(catData.getAssets());
		mRecyclerView.setAdapter(adapter);
		adapter.notifyDataSetChanged();
		mNewsVideoLayout.setParent(this);
		mNewsVideoLayout.addCatData(catData,0);
		parentActivity.hideLoading();
		mHandler.sendEmptyMessage(MSG_GETCATDATA);
	}

	/**
	 * tab栏目下的数据回调方法
	 * @param catData
	 * @param index
	 */
	@Override
	public void onGetCatData(CatData catData, int index) {
		if (catData==null){
			return;
		}
		columeLists.put(index,catData);
		mNewsVideoLayout.addCatData(catData,index);
		if (adapter==null) {
			initAdapterData(catData);
		}else if (index == mTabs.getViewPos()){//当数据请求成功并且tab栏位置正好和回调数据的index相同时才刷新列表
			updataNewsList(index);
		}
	}

	@Override
	public void onGetTabTitle(SparseArray<String> spname) {
		mTabs.setData(spname);
	}

	@Override
	public void onGetJsonUrls(SparseArray<String> jsonUrls) {
		if (jsonUrls == null) {
			return;
		}
		tabcount = jsonUrls.size();
		mNewsVideoLayout.setJsonUrls(jsonUrls);//给videolayout设置播放地址
		columeLists = new SparseArray<>(tabcount);
		neteaseNewsPresenter.getCacheData();//初始化第一个tab
	}
	private void recycleMemory() {
		if (shakeAnim != null) {
			shakeAnim = null;
		}
		if (neteaseNewsPresenter != null) {
			neteaseNewsPresenter = null;
		}
		if (mNewsVideoLayout != null) {
			mNewsVideoLayout = null;
		}
		if (mRecyclerView != null) {
			mRecyclerView = null;
		}
		if (mTabs != null) {
			mTabs = null;
		}
		if (mLinearLayoutManager != null) {
			mLinearLayoutManager = null;
		}
		if (adapter != null) {
			adapter = null;
		}
		if (parentActivity != null) {
			parentActivity = null;
		}
		if (curDate != null) {
			curDate = null;
		}
		if (columeLists != null) {
			columeLists = null;
		}
	}
	@Override
	public void onStop() {
		super.onStop();
		if (mNewsVideoLayout!=null){
			mNewsVideoLayout.stopPlaying();
			mNewsVideoLayout.removePlayIndexChangedListener();
		}
		recycleMemory();
	}

	class MyAdapter extends RecyclerView.Adapter<MyAdapter.ItemViewHolder> {
		List<CatData.AssetElement> assetElements;
		private int focusIndex = -1;//记录焦点位置
		private int isPlayingIndex = -1;//记录正在播放的位置
		private SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		private Date date = new Date();

		public int getFocusIndex() {
			return focusIndex <= 0 ? 0 : focusIndex;
		}

		public void setFocusIndex(int focusIndex) {
			this.focusIndex = focusIndex;
		}

		public void setAssetElements(List<CatData.AssetElement> assetElements) {
			this.assetElements = assetElements;
		}
		public void removeAllData(){
			assetElements =null;
			notifyDataSetChanged();
		}
		public MyAdapter(List<CatData.AssetElement> assetElements) {
			if (null == assetElements) {
				throw new IllegalArgumentException("netease news adapter data must not be null");
			}
			this.assetElements = assetElements;
		}

		@Override
		public ItemViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
			View view = LayoutInflater.from(getActivity()).inflate(R.layout.item_netease_news, null);
			ItemViewHolder viewHolder = new ItemViewHolder(view);
			return viewHolder;
		}

		@Override
		public void onBindViewHolder(final ItemViewHolder holder, final int position) {
			final CatData.AssetElement assetElement = assetElements.get(position);
			holder.title.setText(assetElement.getTitle());
			holder.timetag.setText(calDateTime(assetElement.getTime()));
//			ImageFetcherModule.getInstance().attachImage(assetElement.getPicUrl(), holder.simpleDraweeView);
			holder.simpleDraweeView.setImageURI(assetElement.getPicUrl());
			if (isPlayingIndex == holder.getLayoutPosition()) {
				holder.isplayingtag.setVisibility(View.VISIBLE);
			} else {
				holder.isplayingtag.setVisibility(View.INVISIBLE);
			}

			holder.itemView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
				@Override
				public void onFocusChange(View v, boolean hasFocus) {
					if (hasFocus) {
						if (mTabs!=null){
							mTabs.setLeaveTag();
						}
						setFocusIndex(position);
					}
				}
			});
			holder.itemView.setOnClickListener(new View.OnClickListener() {
				@Override
				public void onClick(View v) {//主动播放某个资产
					playvideo(mTabs.getViewPos(), position);
				}
			});
			holder.itemView.setOnKeyListener(new View.OnKeyListener() {
				@Override
				public boolean onKey(View v, int keyCode, KeyEvent event) {
					if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT && event.getAction() == KeyEvent.ACTION_DOWN) {
						if (mNewsVideoLayout!=null){
							mNewsVideoLayout.requestFocus();
						}
						return true;
					} else if (position == 0 && keyCode == KeyEvent.KEYCODE_DPAD_UP) {
						holder.itemView.startAnimation(shakeAnim);
						return true;
					} else if (position == getItemCount() - 1 && keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {
						holder.itemView.startAnimation(shakeAnim);
						return true;
					}
					return false;
				}
			});
		}

		/**
		 * 设置正在播放tag
		 *
		 * @return
		 */
		private void showIsPlayingTag(ItemViewHolder viewHolder, int curposition) {
			if (curPlayingTabIndex != mTabs.getViewPos()) {//连播时当显示的列表和播放器联播的资产列表不同时，直接返回，避免crash
				isPlayingIndex = curposition;               //更新正在播放位置
				return;
			}
			if (null != mLinearLayoutManager.findViewByPosition(isPlayingIndex)) {
				mLinearLayoutManager.findViewByPosition(isPlayingIndex).findViewById(R.id.isplaying).setVisibility(View.INVISIBLE);
			}
			if (null != viewHolder) {
				viewHolder.isplayingtag.setVisibility(View.VISIBLE);//显示点击item的正在播放tag
			}
			isPlayingIndex = curposition;//更新正在播放位置
		}

		/**
		 * 时间计算差
		 *
		 * @return
		 */
		private String calDateTime(String time) {
			try {
				date = format.parse(time);
			} catch (ParseException e) {
				e.printStackTrace();
			}
			return RelativeDateUtils.format(date, curDate);
		}


		@Override
		public int getItemCount() {
			return assetElements == null ? 0 : assetElements.size();
		}

		class ItemViewHolder extends RecyclerView.ViewHolder {
			SimpleDraweeView simpleDraweeView;
			//			ImageView simpleDraweeView;
			TextView title;
			TextView timetag;
			TextView isplayingtag;

			public ItemViewHolder(final View itemview) {
				super(itemview);
				itemview.setFocusable(true);
				simpleDraweeView = (SimpleDraweeView) itemview.findViewById(R.id.netease_news_list_pic);
//				simpleDraweeView = (ImageView) itemview.findViewById(R.id.netease_news_list_pic);
				title = (TextView) itemview.findViewById(R.id.netease_news_title);
				timetag = (TextView) itemview.findViewById(R.id.netease_news_time);
				isplayingtag = (TextView) itemview.findViewById(R.id.isplaying);
			}
		}
	}

}