qimall/common/logic/order/marketing/DeductionMarketing.php

<?php

namespace common\logic\order\marketing;

use common\enums\AddonsEnum;
use common\enums\AppEnum;
use common\models\mall\MallAddons;
use common\models\user\UserWallet;
use yii\helpers\Json;

class DeductionMarketing extends BaseMarketing
{
    public function execute($form)
    {
        // TODO: Implement execute() method.
    }

    /**
     * 订单抵扣计算
     * @params $item
     * @params $form
     * @params $extra
     * @return array
     * @throws \Exception
     */
    public static function compute($item, &$form, &$extra = [])
    {
        $mall_id = $item['mch_order_info']['mall_id'];

        // 判断后台设置是否开启积分抵扣
        $is_score_setting_status = \Yii::$app->services->setting->mall->get($mall_id, 'order.is_score_deduct_status');
        if (!$is_score_setting_status) return $item;

        // 获取配置名称
        $score_name = \Yii::$app->services->setting->mall->get($mall_id, 'score.score_name');

        // 获取设置抵扣选项
        $score_deduct_value_list = \Yii::$app->services->setting->mall->get($mall_id, 'order.score_deduct_value_list');
        if ($score_deduct_value_list) $score_deduct_value_list = json_decode($score_deduct_value_list, true);
        if (!$score_deduct_value_list) return $item;

        // 获取抵扣比率
        $score_setting_ratio = \Yii::$app->services->setting->mall->get($mall_id, 'score.score_deduct_ratio');
        $score_deduct_status = \Yii::$app->services->setting->mall->get($mall_id, 'score.score_deduct_status');
        if (!$score_deduct_status) $score_setting_ratio = 1; // 当积分抵扣关闭时 积分抵扣比率默认为1

        // 判断是否有积分抵扣
        $is_score = $form->marketing['deduct']['score'];
        if ($is_score) return $item;

        $is_distributor = $form->marketing['deduct']['agent_deduct'];
        $is_member_price = $form->marketing['deduct']['member_price'];

        // 判断用户是否是积分抵扣或者经销商抵扣
        if (!$is_distributor && !$is_member_price) return $item;
        if (in_array('distributor', $score_deduct_value_list) && $is_distributor) {// 经销商内购商品抵扣
            // 检查是否安装经销商内购插件
            if (!MallAddons::isInstall($mall_id, AddonsEnum::ADDONS_NAME_AGENT)) return $item;
            $member_price = abs($is_distributor['money']);
            $des_string = 'agent_deduct';
        } elseif (in_array('member', $score_deduct_value_list) && $is_member_price) {// 用户折扣抵扣
            // 因为用户价前面设置了负号所以此处转为正数
            $member_price = abs($is_member_price['money']);
            $des_string = 'member';
        } else {
            return $item;
        }

        // 获取用户总积分
        $where[] = ['user_id' => $form['user_id'], 'mall_id' => $mall_id];
        $user_score = UserWallet::getOne($where, false, [], false, 'score');
        $can_use_score = $user_score->score;

        // 根据会员折扣扣除对于积分(积分 = 会员价 * 折扣比率)
        $deduct_score = bcmul($member_price, $score_setting_ratio, 2);

        // 判断是否订单提交时访问
        if ($form['action'] == AppEnum::ACTION_CREATE) { // 订单生成访问
            if ($deduct_score > $can_use_score) {
                throw new \Exception($score_name . '不足无法购买');
            }
        }

        foreach ($item['goods'] as &$goods) {
            foreach ($goods['goods_details'] as $k => &$detail) {
                $detail['marketing']['deduct_score'] = $deduct_score;
                // 积分扣减详情
                $detail['marketing']['deduct_currency'] = json_encode(['offset' => ['score' => $deduct_score, 'score_deduct_ratio' => $score_setting_ratio, 'desc' => $des_string]]);
            }
        }
        $item['mch_order_info']['score'] = $deduct_score;
        $item['mch_order_info']['score_money'] = $member_price;

        $form->marketing['deduct']['offset'] = [
            'name' => $score_name . '抵扣',
            'money' => -($deduct_score),
        ];
        return $item;
    }
}