package jiuyuhulian.com.merchantstoreApp.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
 
import android.widget.GridView;

import jiuyuhulian.com.merchantstoreApp.R;

/**
 * Created by Admin on 2017/3/9.
 */

public class ChooseMoneyLayout extends GridView {

    private int[] moneyList = {};   //資料來源

    private LayoutInflater mInflater;

    private MyAdapter adapter;   //介面卡

    int defaultChoose 
 
= -1;     //預設選中項

    public ChooseMoneyLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
        setData();
    }

    public void setData() {
        mInflater = LayoutInflater.from(getContext());
        //配置介面卡
        adapter = new MyAdapter();
        setAdapter(adapter
 
);
    }

    /**
     * 設定預設選擇專案，
     * @param defaultChoose
     */
    public void setDefaultPositon(int defaultChoose) {
        this.defaultChoose = defaultChoose;
        adapter.notifyDataSetChanged();
    }

    /**
     * 設定資料來源
     * @param moneyData
     */
    public void setMoneyData(int[] moneyData){
        this.moneyList = moneyData;
    }

    class MyAdapter extends BaseAdapter {


        private CheckBox checkBox;


        @Override
        public int getCount() {
            return moneyList.length;
        }

        @Override
        public Object getItem(int position) {
            return moneyList[position];
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            MyViewHolder holder;
            if (convertView == null) {
                holder = new MyViewHolder();
                convertView = mInflater.inflate(R.layout.item_money_pay, parent, false);
                holder.moneyPayCb = (CheckBox) convertView.findViewById(R.id.money_pay_cb);
                convertView.setTag(holder);
            } else {
                holder = (MyViewHolder) convertView.getTag();
            }

            holder.moneyPayCb.setText(getItem(position) + "元");

            holder.moneyPayCb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    if (isChecked) {
                        //設定選中文字顏色
                        buttonView.setTextColor(getResources().getColor(R.color.white));

                        //取消上一個選擇
                        if (checkBox != null) {
                            checkBox.setChecked(false);
                        }
                        checkBox = (CheckBox) buttonView;
                    } else {
                        checkBox = null;
                        //設定不選中文字顏色
                        buttonView.setTextColor(getResources().getColor(R.color.black));
                    }
                    //回撥
                    listener.chooseMoney(position, isChecked, (Integer) getItem(position));
                }
            });


            if (position == defaultChoose) {
                defaultChoose = -1;
                holder.moneyPayCb.setChecked(true);
                checkBox = holder.moneyPayCb;
            }

            return convertView;
        }


        private class MyViewHolder {
            private CheckBox moneyPayCb;
        }
    }


    /**
     * 解決巢狀顯示不完
     * @param widthMeasureSpec
     * @param heightMeasureSpec
     */
    @Override
    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
                MeasureSpec.AT_MOST);
        super.onMeasure(widthMeasureSpec, expandSpec);
    }

    private onChoseMoneyListener listener;

    public void setOnChoseMoneyListener(onChoseMoneyListener listener) {
        this.listener = listener;
    }

    public interface onChoseMoneyListener {
        /**
         * 選擇金額返回
         *
         * @param position gridView的位置
         * @param isCheck  是否選中
         * @param moneyNum 錢數
         */
        void chooseMoney(int position, boolean isCheck, int moneyNum);
    }
}