package com.doumee.lib_coremodel.view.recyclerview.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.LayoutRes;
import androidx.recyclerview.widget.AsyncListDiffer;
import androidx.recyclerview.widget.DiffUtil;
import androidx.recyclerview.widget.RecyclerView;

import com.king.base.adapter.HolderRecyclerAdapter;
import com.king.base.adapter.holder.ViewHolder;

import java.util.List;

public abstract class DiffHolderRecyclerAdapter<T,H extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<H> implements ViewHolder.OnItemClick{

    private Context context;
    private AsyncListDiffer<T> mDiffer;

    private LayoutInflater layoutInflater;

    private HolderRecyclerAdapter.OnItemClickListener mOnItemClickListener;
    private HolderRecyclerAdapter.OnItemChildClickListener mOnItemChildClickListener;

    public interface OnItemClickListener{
        void onItemClick(View v, int position);
    }

    public void setOnItemClickListener(HolderRecyclerAdapter.OnItemClickListener clickListener){
        this.mOnItemClickListener = clickListener;
    }

    protected void onItemClick(View v,int position){
        if(mOnItemClickListener!=null){
            mOnItemClickListener.onItemClick(v,position);
        }
    }

    public interface OnItemChildClickListener{
        void onItemChildClick(View v, int position);
    }

    public void setOnItemChildClickListener(HolderRecyclerAdapter.OnItemChildClickListener clickListener){
        this.mOnItemChildClickListener = clickListener;
    }

    @Override
    public void onItemClick(View v,int position,boolean isChild){
        if(isChild){
            if(mOnItemChildClickListener!=null){
                mOnItemChildClickListener.onItemChildClick(v,position);
            }
        }else{
            onItemClick(v,position);
        }

    }

    public DiffHolderRecyclerAdapter(Context context, DiffUtil.ItemCallback<T> DIFF_CALLBACK){
        super();
        this.context = context;
        this.mDiffer= new AsyncListDiffer(this, DIFF_CALLBACK);
        this.layoutInflater = LayoutInflater.from(context);
    }

    public LayoutInflater getLayoutInflater(){
        return layoutInflater;
    }

    public Context getContext(){
        return context;
    }

    @Override
    public H onCreateViewHolder(ViewGroup parent, int viewType) {

        View itemView = buildConvertView(layoutInflater,parent,viewType);
        return buildHolder(itemView,viewType);
    }

    @Override
    public void onBindViewHolder(H holder, final int position) {
        T item = position<mDiffer.getCurrentList().size() ? mDiffer.getCurrentList().get(position) : null;

        bindViewDatas(holder,item,position);
        if(this.mOnItemClickListener!=null){
            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onItemClick(v,position);
                }
            });
        }

        if(holder instanceof ViewHolder){
            ((ViewHolder)holder).setItemClick(this);
        }
    }

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

    public View inflate(@LayoutRes int layoutId, ViewGroup parent, boolean attachToRoot){
        return layoutInflater.inflate(layoutId,parent,attachToRoot);
    }

    public List<T> getListData() {
        return mDiffer.getCurrentList();
    }

    public void setListData(List<T> listData) {
        this.mDiffer.submitList(listData);
    }

    /**
     * 建立convertView
     * @param layoutInflater
     * @param parent
     * @param viewType
     * @return
     */
    public abstract View buildConvertView(LayoutInflater layoutInflater, ViewGroup parent, int viewType);

    /**
     * 建立视图Holder
     * @param convertView
     * @param viewType
     * @return
     */
    public abstract H buildHolder(View convertView,int viewType);

    /**
     * 绑定数据
     * @param holder
     * @param item
     * @param position
     */
    public abstract void bindViewDatas(H holder,T item,int position);
}