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113 lines
3.7 KiB
113 lines
3.7 KiB
<?php
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// +----------------------------------------------------------------------
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// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
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// +----------------------------------------------------------------------
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// | Author: 萤火科技 <admin@yiovo.com>
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// +----------------------------------------------------------------------
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declare (strict_types=1);
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namespace app\api\service\points;
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use app\common\library\helper;
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use app\api\model\Setting as SettingModel;
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use app\common\service\BaseService;
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/**
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* 订单积分抵扣服务类
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* Class GoodsDeduct
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* @package app\api\service\points
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*/
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class GoodsDeduct extends BaseService
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{
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/**
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* 订单商品列表
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* @var array
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*/
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private iterable $goodsList;
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/**
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* 构造方法
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* GoodsDeduct constructor.
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* @param iterable $goodsList
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*/
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public function __construct(iterable $goodsList)
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{
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parent::__construct();
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$this->goodsList = $goodsList;
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}
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/**
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* 设置订单商品积分抵扣
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* @param $maxPointsNumCount
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* @param $actualPointsNum
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* @return bool
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*/
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public function setGoodsPoints($maxPointsNumCount, $actualPointsNum): bool
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{
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// 计算实际积分抵扣数量
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$this->setGoodsListPointsNum($maxPointsNumCount, $actualPointsNum);
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// 总抵扣数量
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$totalPointsNum = (int)helper::getArrayColumnSum($this->goodsList, 'points_num');
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// 填充余数
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$this->setGoodsListPointsNumFill($actualPointsNum, $totalPointsNum);
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$this->setGoodsListPointsNumDiff($actualPointsNum, $totalPointsNum);
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// 计算实际积分抵扣金额
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$this->setGoodsListPointsMoney();
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return true;
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}
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/**
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* 计算实际积分抵扣数量
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* @param $maxPointsNumCount
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* @param $actualPointsNum
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*/
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private function setGoodsListPointsNum($maxPointsNumCount, $actualPointsNum)
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{
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foreach ($this->goodsList as &$goods) {
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if (!$goods['is_points_discount']) continue;
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$goods['points_num'] = floor($goods['max_points_num'] / $maxPointsNumCount * $actualPointsNum);
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}
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}
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/**
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* 计算实际积分抵扣金额
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*/
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private function setGoodsListPointsMoney()
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{
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$setting = SettingModel::getItem('points');
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foreach ($this->goodsList as &$goods) {
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if (!$goods['is_points_discount']) continue;
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$goods['points_money'] = helper::bcmul($goods['points_num'], $setting['discount']['discount_ratio']);
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}
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}
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private function setGoodsListPointsNumFill($actualPointsNum, $totalPointsNum): bool
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{
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if ($totalPointsNum === 0) {
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$temReducedMoney = $actualPointsNum;
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foreach ($this->goodsList as &$goods) {
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if (!$goods['is_points_discount']) continue;
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if ($temReducedMoney === 0) break;
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$goods['points_num'] = 1;
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$temReducedMoney--;
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}
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}
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return true;
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}
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private function setGoodsListPointsNumDiff($actualPointsNum, $totalPointsNum): bool
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{
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$tempDiff = $actualPointsNum - $totalPointsNum;
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foreach ($this->goodsList as &$goods) {
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if (!$goods['is_points_discount']) continue;
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if ($tempDiff < 1) break;
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$goods['points_num'] = $goods['points_num'] + 1;
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$tempDiff--;
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}
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return true;
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}
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} |