<?php
/**
 * Created by PhpStorm.
 * User: shenyang
 * Date: 2017/9/10
 * Time: 上午11:30
 */

namespace app\common\models;
/**
 * Class VirtualCoin
 * @package app\common\models
 * @property float amountOfCoin
 * @property float amountOfMoney
 * @property int is_point
 * @property float use_point
 * @property float use_money
 */
abstract class VirtualCoin extends BaseModel{
    protected $table = 'yz_virtual_coin';
    protected $attributes = [
        'amountOfCoin'  => 0,
        'amountOfMoney' => 0,
        'is_point'      => 0,
        'use_point'     => 0,
        'use_money'     => 0,
    ];
    protected $_name;
    protected $code;
    protected $appends = ['name'];
    protected $exchange_rate;
    function __construct($attribute = []){
        parent::__construct($attribute);
        $this->exchange_rate = $this->getExchangeRate();
        $this->_name         = $this->getName();
        $this->code          = $this->getCode();
    }
    public function getNameAttribute(){
        return $this->getName();
    }
    public function getCode(){
        return isset($this->code) ? $this->code : $this->code = $this->_getCode();
    }
    public function getName(){
        return isset($this->_name) ? $this->_name : $this->_name = $this->_getName();
    }
    public function getExchangeRate(){
        return isset($this->exchange_rate) ? $this->exchange_rate : ($this->exchange_rate = $this->_getExchangeRate() ?: 1);
    }
    abstract protected function _getExchangeRate();
    abstract protected function _getName();
    abstract protected function _getCode();
    /**
     * @param VirtualCoin $coin
     * @return VirtualCoin
     */
    public function plus(VirtualCoin $coin){
        $result = (new static())->setMoney($this->amountOfMoney + $coin->getMoney());// 积分最低抵扣金额
        if($coin->is_point == 1){
            $result->setPoint([
                'is_point'      => 1,
                'use_point'     => $this->use_point + $coin->use_point,
                'use_money'     => $this->use_money + $coin->use_money,
            ])->setMoney(0);
        }

        return $result;
    }
    public function setCoin($amount){
        $this->amountOfMoney = $amount * $this->exchange_rate;
        //四舍六入五成双
        //        $this->amountOfMoney =  round($amount * $this->exchange_rate,2,PHP_ROUND_HALF_EVEN);
        return $this;
    }
    public function setMoney($amount){
        //        $this->amountOfMoney =  round($amount,4,PHP_ROUND_HALF_EVEN);
        $this->amountOfMoney = $amount;
        return $this;
    }
    public function toArray(){
        $this->amountOfCoin = sprintf('%.2f',$this->getCoin());
        $this->amountOfMoney = sprintf('%.2f',$this->getMoney());
        return parent::toArray();
    }
    /**
     * @return float|int
     */
    public function getCoin(){
        //四舍六入五成双
        if($this->is_point == 1) return (float)$this->use_point;


        return $this->amountOfCoin = round($this->amountOfMoney / $this->exchange_rate,2,PHP_ROUND_HALF_EVEN);
        //        return $this->amountOfCoin = sprintf('%.2f', bcdiv($this->amountOfMoney,$this->exchange_rate,4));
    }
    /**
     * @return mixed
     */
    public function getMoney(){
        if($this->is_point == 1) return (float)0;

        return $this->amountOfMoney;
    }
    public function save(array $options = []){
        return TRUE;
    }

    // 积分商品 - 设置内容
    public function setPoint($field){
        if(array_key_exists('is_point',$field)) $this->is_point = $field['is_point'];
        if(array_key_exists('use_point',$field)) $this->use_point = $field['use_point'];
        if(array_key_exists('use_money',$field)) $this->use_money = $field['use_money'];

        return $this;
    }


}