package com.ennew.ui.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.ennew.R;

import java.util.ArrayList;
import java.util.List;

/**
 * 新增、填写询价单
 * Created by tianhongyan on 2017/6/21.
 */

public class EnquiryCompareAddAdapter extends RecyclerView.Adapter<EnquiryCompareAddAdapter.MyHolder> {

    private RecyclerView mRecyclerView;
    private List<String> data = new ArrayList<>();
    private Context mContext;

    private View VIEW_FOOTER;
    private View VIEW_HEADER;

    private int TYPE_NORMAL = 1000;
    private int TYPE_HEADER = 1001;
    private int TYPE_FOOTER = 1002;

    public EnquiryCompareAddAdapter(Context mContext) {
        initData();
        this.mContext = mContext;
    }

    @Override
    public int getItemViewType(int position) {
        if (isHeaderView(position)) {
            return TYPE_HEADER;
        } else if (isFooterView(position)) {
            return TYPE_FOOTER;
        } else {
            return TYPE_NORMAL;
        }
    }

    @Override
    public EnquiryCompareAddAdapter.MyHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        if (viewType == TYPE_FOOTER) {
            return new MyHolder(VIEW_FOOTER);
        } else if (viewType == TYPE_HEADER) {
            return new MyHolder(VIEW_HEADER);
        } else {
            return new MyHolder(getLayout(R.layout.item_enquiry_compare_add));
        }
    }

    @Override
    public void onBindViewHolder(MyHolder holder, int position) {
        if (!isHeaderView(position) && !isFooterView(position)) {
            if (haveHeaderView()){
                position--;
            }
            TextView content = (TextView) holder.itemView.findViewById(R.id.tv_good_name);
            content.setText(data.get(position));
        }
    }

    @Override
    public int getItemCount() {
        int count = (data == null ? 0 : data.size());
        if (VIEW_FOOTER != null) {
            count++;
        }
        if (VIEW_HEADER != null) {
            count++;
        }
        return count;
    }


    @Override
    public void onAttachedToRecyclerView(RecyclerView recyclerView) {
        try {
            if (mRecyclerView == null && mRecyclerView != recyclerView) {
                mRecyclerView = recyclerView;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private View getLayout(int layoutId) {
        return LayoutInflater.from(mContext).inflate(layoutId, null);
    }

    public void addHeaderView(View headerView) {
        if (haveHeaderView()) {
            throw new IllegalStateException("hearview has already exists!");
        } else {
            ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
            headerView.setLayoutParams(params);
            VIEW_HEADER = headerView;
            notifyItemInserted(0);
        }

    }

    public void addFooterView(View footerView) {
        if (haveFooterView()) {
            throw new IllegalStateException("footerView has already exists!");
        } else {
            ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
            footerView.setLayoutParams(params);
            VIEW_FOOTER = footerView;
            notifyItemInserted(getItemCount() - 1);
        }
    }


    private boolean haveHeaderView() {
        return VIEW_HEADER != null;
    }

    public boolean haveFooterView() {
        return VIEW_FOOTER != null;
    }

    private boolean isHeaderView(int position) {
        return haveHeaderView() && position == 0;
    }

    private boolean isFooterView(int position) {
        return haveFooterView() && position == getItemCount() - 1;
    }


    public static class MyHolder extends RecyclerView.ViewHolder {

        public MyHolder(View itemView) {
            super(itemView);
        }
    }

    void initData(){
        for(int i=0;i<50;i++){
            data.add("index "+i);
        }
    }

}