<?php

namespace app\frontend\modules\order\coinExchange;


use app\framework\Database\Eloquent\Collection;
use app\frontend\models\order\PreOrderCoinExchange;

class OrderCoinExchangeCollection extends Collection
{
    public function addAndGroupByCode(PreOrderCoinExchange $orderCoinExchange)
    {
        if(!$this->sumByCode($orderCoinExchange)){
            // 不存在新建
            $this->add($orderCoinExchange);
        }
        return $this;
    }

    private function sumByCode(PreOrderCoinExchange $orderCoinExchange)
    {
        // 存在相同类型累加金额和数量
        foreach ($this->items as &$item) {
            if ($item['code'] == $orderCoinExchange->code) {
                $item['amount'] = sprintf("%.2f",$item['amount'] + $orderCoinExchange->amount);
                $item['coin'] = sprintf("%.2f",$item['coin'] + $orderCoinExchange->coin);
                $item['use_money'] = sprintf("%.2f",$item['use_money'] + $orderCoinExchange->use_money);

                return true;
            }
        }

        return false;
    }
}