<?php // +---------------------------------------------------------------------- // | 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 ] // +---------------------------------------------------------------------- // | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved. // +---------------------------------------------------------------------- // | 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 // +---------------------------------------------------------------------- // | Author: 萤火科技 <admin@yiovo.com> // +---------------------------------------------------------------------- declare (strict_types=1); namespace app\api\service\points; use app\common\library\helper; use app\api\model\Setting as SettingModel; use app\common\service\BaseService; /** * 订单积分抵扣服务类 * Class GoodsDeduct * @package app\api\service\points */ class GoodsDeduct extends BaseService { /** * 订单商品列表 * @var array */ private iterable $goodsList; /** * 构造方法 * GoodsDeduct constructor. * @param iterable $goodsList */ public function __construct(iterable $goodsList) { parent::__construct(); $this->goodsList = $goodsList; } /** * 设置订单商品积分抵扣 * @param $maxPointsNumCount * @param $actualPointsNum * @return bool */ public function setGoodsPoints($maxPointsNumCount, $actualPointsNum): bool { // 计算实际积分抵扣数量 $this->setGoodsListPointsNum($maxPointsNumCount, $actualPointsNum); // 总抵扣数量 $totalPointsNum = (int)helper::getArrayColumnSum($this->goodsList, 'points_num'); // 填充余数 $this->setGoodsListPointsNumFill($actualPointsNum, $totalPointsNum); $this->setGoodsListPointsNumDiff($actualPointsNum, $totalPointsNum); // 计算实际积分抵扣金额 $this->setGoodsListPointsMoney(); return true; } /** * 计算实际积分抵扣数量 * @param $maxPointsNumCount * @param $actualPointsNum */ private function setGoodsListPointsNum($maxPointsNumCount, $actualPointsNum) { foreach ($this->goodsList as &$goods) { if (!$goods['is_points_discount']) continue; $goods['points_num'] = floor($goods['max_points_num'] / $maxPointsNumCount * $actualPointsNum); } } /** * 计算实际积分抵扣金额 */ private function setGoodsListPointsMoney() { $setting = SettingModel::getItem('points'); foreach ($this->goodsList as &$goods) { if (!$goods['is_points_discount']) continue; $goods['points_money'] = helper::bcmul($goods['points_num'], $setting['discount']['discount_ratio']); } } private function setGoodsListPointsNumFill($actualPointsNum, $totalPointsNum): bool { if ($totalPointsNum === 0) { $temReducedMoney = $actualPointsNum; foreach ($this->goodsList as &$goods) { if (!$goods['is_points_discount']) continue; if ($temReducedMoney === 0) break; $goods['points_num'] = 1; $temReducedMoney--; } } return true; } private function setGoodsListPointsNumDiff($actualPointsNum, $totalPointsNum): bool { $tempDiff = $actualPointsNum - $totalPointsNum; foreach ($this->goodsList as &$goods) { if (!$goods['is_points_discount']) continue; if ($tempDiff < 1) break; $goods['points_num'] = $goods['points_num'] + 1; $tempDiff--; } return true; } }