efunboxReader-android/app/src/main/java/com/edufound/reader/presenter/RecommendFragmentPresenter.java

package com.edufound.reader.presenter;

import android.content.Context;
import android.content.Intent;
import android.graphics.Outline;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewOutlineProvider;
import android.widget.Toast;

import com.edufound.reader.R;
import com.edufound.reader.adapter.SlideVideoAdapter;
import com.edufound.reader.base.BaseActivity;
import com.edufound.reader.base.BasePresenter;
import com.edufound.reader.bean.FavoritesBean;
import com.edufound.reader.bean.HttpResultBean;
import com.edufound.reader.bean.HttpResultDataListBean;
import com.edufound.reader.bean.UserBean;
import com.edufound.reader.bean.UserRecordBean;
import com.edufound.reader.contract.RecommendFragmentContract;
import com.edufound.reader.cusview.RvListJzvdStd;
import com.edufound.reader.model.RecommendFragmentModel;
import com.edufound.reader.receiver.BackPageReceiver;
import com.edufound.reader.util.Consts;
import com.edufound.reader.util.EfunboxUtil;
import com.edufound.reader.util.MMKVEncodeKey;
import com.edufound.reader.util.MMKVUtil;
import com.edufound.reader.util.SizeUtils;
import com.edufound.reader.videoutil.OnViewPagerListener;
import com.edufound.reader.videoutil.ViewPagerLayoutManager;
import com.google.gson.reflect.TypeToken;
import com.okhttplib.HttpInfo;
import com.okhttplib.callback.Callback;
import com.orhanobut.logger.Logger;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.OrientationHelper;
import androidx.recyclerview.widget.RecyclerView;
import cn.jzvd.JZUtils;
import cn.jzvd.Jzvd;

public class RecommendFragmentPresenter extends BasePresenter<RecommendFragmentContract.View> implements RecommendFragmentContract.Presenter {

    Context mContext;
    RecommendFragmentModel mModel;
    private ViewPagerLayoutManager mViewPagerLayoutManager;
    private int mCurrentPosition = 0;
    List<UserRecordBean> mDataList;
    SlideVideoAdapter mAdapter;

    public RecommendFragmentPresenter(Context context) {
        mModel = new RecommendFragmentModel();
        mContext = context;
        BackPageReceiver.registerReceiver(context);
        BackPageReceiver.registerBackPageReceiverListener(backListener);
    }

    @Override
    public void initVideoList(RecyclerView rv, int type, int startPosition) {
        rv.setOutlineProvider(new ViewOutlineProvider() {
            @Override
            public void getOutline(View view, Outline outline) {
                outline.setRoundRect(SizeUtils.dp2px(mContext, 5),
                        0,
                        view.getWidth() - SizeUtils.dp2px(mContext, 5),
                        view.getHeight(),
                        SizeUtils.dp2px(mContext, 40));
            }
        });
        rv.setClipToOutline(true);


        if (type == 0) {
            //推荐的接口
            initVideoDate(rv, startPosition);
            getRecommendDataList();
        } else if (type == 1) {
            //关注的接口
        } else if (type == 2) {
            //官方的
        } else if (type == 3) {
            //关注的人的
        }

    }


    public void initVideoDate(RecyclerView rv, int startPosition) {

        rv.setLayoutManager(new LinearLayoutManager(mView.getActivity()));
        rv.setNestedScrollingEnabled(false);
        mViewPagerLayoutManager = new ViewPagerLayoutManager(mView.getActivity(), OrientationHelper.VERTICAL);
        rv.setLayoutManager(mViewPagerLayoutManager);
        mDataList = new ArrayList<>();
        mAdapter = new SlideVideoAdapter(mView.getActivity(), mDataList);
        rv.setAdapter(mAdapter);
        mViewPagerLayoutManager.setOnViewPagerListener(new OnViewPagerListener() {
            @Override
            public void onInitComplete() {
                //自动播放第一条
                autoPlayVideo(rv);
            }

            @Override
            public void onPageRelease(boolean isNext, int position) {
                if (mCurrentPosition == position) {
                    Jzvd.releaseAllVideos();
                }
            }

            @Override
            public void onPageSelected(int position, boolean isBottom) {
//                if (mCurrentPosition == position) {
//                    Logger.e("mCurrentPosition == position..return了");
//                    return;
//                }
                autoPlayVideo(rv);
                mCurrentPosition = position;
                if (mCurrentPosition == 0) {
                    Toast.makeText(mContext, "已经是第一个了", Toast.LENGTH_SHORT).show();
                }
            }
        });
        rv.addOnChildAttachStateChangeListener(new RecyclerView.OnChildAttachStateChangeListener() {
            @Override
            public void onChildViewAttachedToWindow(View view) {
                scrollToNextFunction(rv, false);
            }

            @Override
            public void onChildViewDetachedFromWindow(View view) {
                Jzvd jzvd = view.findViewById(R.id.slidevideo_video);
                if (jzvd != null && Jzvd.CURRENT_JZVD != null && jzvd.jzDataSource != null &&
                        jzvd.jzDataSource.containsTheUrl(Jzvd.CURRENT_JZVD.jzDataSource.getCurrentUrl())) {
                    if (Jzvd.CURRENT_JZVD != null && Jzvd.CURRENT_JZVD.screen != Jzvd.SCREEN_FULLSCREEN) {
                        Jzvd.releaseAllVideos();
                    }
                }
            }
        });
        if (startPosition > 0) {
            rv.scrollToPosition(startPosition);
        }
    }

    @Override
    public Object getCurPlayVideo() {
        return mCurrentPosition;
    }

    @Override
    public void fragmentPause(RecyclerView rv) {
        if (rv.getChildCount() > 0) {
            RvListJzvdStd player = rv.getChildAt(0).findViewById(R.id.slidevideo_video);
            player.pauseVideo();
        }
    }

    @Override
    public void fragmentResume(RecyclerView rv) {
        if (rv.getChildCount() > 0) {
            RvListJzvdStd player = rv.getChildAt(0).findViewById(R.id.slidevideo_video);
            player.startVideoPauseEnd();
        }
    }

    @Override
    public void getRecommendDataList() {
        if (TextUtils.isEmpty(MMKVUtil.getInstance().decodeString(MMKVEncodeKey.USER_GRADE))) {
            //如果是空的，就是没选择过年纪。然后给个默认的一年级
            //PRESCHOOL,FIRST_GRADE,SECOND_GRADE,THIRD_GRADE,FOURTH_GRADE
//            MMKVUtil.getInstance().encode(MMKVEncodeKey.USER_GRADE, "FIRST_GRADE");
        }
        String grade = MMKVUtil.getInstance().decodeString(MMKVEncodeKey.USER_GRADE);
        if (TextUtils.isEmpty(grade)) {
            grade = EfunboxUtil.getEnumByCNGrade("一年级");
        }
        if (Consts.getmConstsUserBean() == null) {
            grade = EfunboxUtil.getEnumByCNGrade("一年级");
        }
        mModel.getRecommendList(mView.getActivity(), grade, (mCurrentPosition / 100) + 1, new Callback() {
            @Override
            public void onSuccess(HttpInfo info) throws IOException {
                HttpResultBean<HttpResultDataListBean<UserRecordBean>> bean = info.getRetDetail(new TypeToken<HttpResultBean<HttpResultDataListBean<UserRecordBean>>>() {
                }.getType());
                if (mDataList == null) {
                    mDataList = bean.getData().getList();
                } else {
                    mDataList.addAll(bean.getData().getList());
                    mAdapter.addMored(mDataList);
                }
                mView.getRootView().post(new Runnable() {
                    @Override
                    public void run() {
                        mAdapter.notifyDataSetChanged();
                    }
                });
            }

            @Override
            public void onFailure(HttpInfo info) throws IOException {
                Logger.e("获取推荐列表失败：" + info.getRetDetail());
            }
        });
    }

    @Override
    public void doFavorites(UserRecordBean.UserRead userRead) {
        Map<String, String> map = new HashMap<>();
        map.put("exampleId", userRead.getExampleId());
        map.put("targetCode", userRead.getExampleId());
        String json = ((BaseActivity) mView.getActivity()).getGson().toJson(map);
        mModel.doFavorites(mView.getActivity(), json, new Callback() {
            @Override
            public void onSuccess(HttpInfo info) throws IOException {
                HttpResultBean<FavoritesBean> bean = info.getRetDetail(new TypeToken<HttpResultBean<FavoritesBean>>() {
                }.getType());
                if (bean.getData().getStatus().equals("DEL")) {
                    mView.setFavorites(false);
                } else if (bean.getData().getStatus().equals("NORMAL")) {
                    mView.setFavorites(true);
                }
            }

            @Override
            public void onFailure(HttpInfo info) throws IOException {
                Logger.e("收藏/取消收藏接口失败：" + info.getRetDetail());
            }
        });
    }

    @Override
    public void doLike(UserRecordBean.UserRead userRead) {
        mModel.doLick(mView.getActivity(), userRead.getId(), new Callback() {
            @Override
            public void onSuccess(HttpInfo info) throws IOException {
                HttpResultBean<String> bean = info.getRetDetail(new TypeToken<HttpResultBean<String>>() {
                }.getType());
                mView.setLikes(bean.getData());
            }

            @Override
            public void onFailure(HttpInfo info) throws IOException {
                Logger.e("failure---info.getRetDetail:" + info.getRetDetail());
            }
        });
    }

    @Override
    public void destory() {
        Jzvd.releaseAllVideos();
        Jzvd.backPress();
    }

    @Override
    public void getRecordInfoById(String id) {
        mModel.getRecordInfoById(mView.getActivity(), id, new Callback() {
            @Override
            public void onSuccess(HttpInfo info) throws IOException {
                HttpResultBean<UserRecordBean> bean = info.getRetDetail(new TypeToken<HttpResultBean<UserRecordBean>>() {
                }.getType());
                mDataList.set(mCurrentPosition, bean.getData());
                mView.getRootView().post(new Runnable() {
                    @Override
                    public void run() {
                        mAdapter.notifyDataSetChanged();
                    }
                });
            }

            @Override
            public void onFailure(HttpInfo info) throws IOException {
                Logger.e("获取单独的失敗了:" + info.getRetDetail());
            }
        });

    }

    private void autoPlayVideo(RecyclerView rv) {
        if (rv == null || rv.getChildAt(0) == null) {
            return;
        }
        //获取当前显示的View 的数据
        int childCount = rv.getChildCount();
        //获取最后一具 Item 对应的View
        View childAt = rv.getChildAt(childCount - 1);
        //获取当前军舰中显示的最后一个 Item 的位置  Postion
        int childLayoutPosition = rv.getChildLayoutPosition(childAt);
        mView.setTopStatus(mDataList.get(childLayoutPosition));
        RvListJzvdStd player = rv.getChildAt(0).findViewById(R.id.slidevideo_video);
        if (player != null) {
            if (player.state == Jzvd.STATE_PLAYING) {
                //正在播放

            } else {
                player.startVideoAfterPreloading();
                player.setVideoCallBack(new RvListJzvdStd.VideoCallBack() {
                    @Override
                    public void onComplete() {
                        scrollToNextFunction(rv, true);
                    }

                    @Override
                    public void onError(int what, int extra) {

                    }

                    @Override
                    public void onInfo(int what, int extra) {

                    }
                });
            }

        }
    }

    public void scrollToNextFunction(RecyclerView rv, boolean needScroll) {
        //获取当前显示的View 的数据
        int childCount = rv.getChildCount();
        //获取最后一具 Item 对应的View
        View childAt = rv.getChildAt(childCount - 1);
        //获取当前军舰中显示的最后一个 Item 的位置  Postion
        int childLayoutPosition = rv.getChildLayoutPosition(childAt);
        //如果不是最后一个就向下滑动

        if (childLayoutPosition < rv.getAdapter().getItemCount() - 2) {
            if (needScroll) {
                rv.smoothScrollToPosition(childLayoutPosition + 1);
            }
        } else {
//            Toast.makeText(this, "已滑动到底部了", Toast.LENGTH_LONG).show();
//            CToast.makeText(mView.getActivity(), "滑动到最后一个啦", 3000).show();

            getRecommendDataList();
        }
    }

    public void scrollToUpFunction(RecyclerView rv) {
        //获取当前显示的View 的数据
        Logger.e("mCurrentPosition:" + mCurrentPosition);
        if (mCurrentPosition > 0) {
            rv.smoothScrollToPosition(mCurrentPosition - 1);
            mCurrentPosition = mCurrentPosition - 1;
        } else if (mCurrentPosition == 0) {
            Toast.makeText(mContext, "已经是第一个了", Toast.LENGTH_SHORT).show();
        }


    }

    BackPageReceiver.onBackPage backListener = new BackPageReceiver.onBackPage() {
        @Override
        public void pageBack(Intent intent) {
            if (intent.getAction().equals(BackPageReceiver.BACK_HOME_REF_VIDEO_ITEM)) {
                //从其他页面回来了。查询一下单独的item数据，然后赋值
                Logger.e("收到了回来的广播了");
                getRecordInfoById(intent.getStringExtra("recordId"));
            }
        }
    };


}