qimall/addons/Redpack/common/logic/order/RedpackMarketing.php

<?php
/**
 * 红包抵扣计算
 */
namespace addons\Redpack\common\logic\order;

use addons\Redpack\common\enums\RedpackEnum;
use addons\Redpack\common\models\RedpackGoodsSetting;
use addons\Redpack\common\models\RedpackWallet;
use common\enums\AppEnum;
use common\enums\StatusEnum;
use common\traits\ErrorTrait;
use yii\helpers\Json;

class RedpackMarketing
{
    use ErrorTrait;
    /**
     * 红包抵扣处理
     * @Author: lun
     * @DateTime: 2021/10/6 0006 11:02
     * @Copyright: copyright (c) 2021 广东七件事集团
     * @param $item
     * @param $form
     * @param array $extra
     * @return mixed
     */
    public static function computeOld($item, &$form, array &$extra = [])
    {
        try {
            $mall_id = $item['mch_order_info']['mall_id'];
            $user_id = $item['mch_order_info']['user_id'];
            $redpack_text_arr = RedpackEnum::getRedpackText('', $mall_id);// 红包中文名称
            $deduct_money = 0;// 抵扣总额
            $deduct_arr = [];// 抵扣冻结跟金额数组

            // 商品处理
            foreach ($item['goods'] as $goods_id => &$goods) {
                // 查询该商品是否设置了红包抵扣
                $redpack = RedpackGoodsSetting::find()->where(['goods_id' => $goods_id, 'is_enable' => StatusEnum::ENABLED, 'status' => StatusEnum::ENABLED])->asArray()->all();
                if (empty($redpack)) continue;

                // 单件抵扣：比如单件抵扣10元，购买A商品共3件，每件50元，总价=150元，可抵扣的金额10元
                // 多件抵扣：比如多件抵扣10元，购买A商品共3件，每件50元，总价=150元，可抵扣的金额30元
                $num = $goods['num'];// 商品数量
                foreach ($redpack as $value) {
                    $money = $value['deduct_type'] == 1 ? $value['deduct_money'] : $value['deduct_money'] * $num;// 计算抵扣金额
                    if ($money <= 0) continue;
                    $redpack_text = $redpack_text_arr[$value['redpack_wallet_type']];// 红包中文名称
                    $redpack_en = $value['redpack_wallet_type'];// 红包英文标识

                    // 检查是否有被选中
                    $is_use = !empty($form->data['is_use_' . $redpack_en]) ? true : false;

                    // 前端抵扣数据展示组合
                    if ($form->action == AppEnum::ACTION_PREVIEW) {
                        $form->marketing['deduct'][$redpack_en] = [
                            'name' => $redpack_text,
                            'deduct_val' => empty($form->marketing['deduct'][$redpack_en]['deduct_val']) ? $money : $form->marketing['deduct'][$redpack_en]['deduct_val'] + $money,
                            'money' => empty($form->marketing['deduct'][$redpack_en]['money']) ? $money : $form->marketing['deduct'][$redpack_en]['money'] + $money,
                            'is_show_radio' => true,// 是否显示单选按钮
                            'is_use' => $is_use,// 是否被选中单选按钮
                        ];
                    }

                    // 组合订单优惠表数据
                    if (!empty($form->data['is_use_' . $redpack_en])) {
                            $deduct_currency = $goods['goods_details'][0]['marketing']['deduct_currency'];
                        if($deduct_currency){
                            $deduct_currency = (array_merge($deduct_currency, [$redpack_en => ['name' => RedpackEnum::getRedpackText($redpack_en, $mall_id),'money' => $money]]));// 将合并的数组转为json字符串
                        }else{
                            $deduct_currency = [$redpack_en => ['name' => RedpackEnum::getRedpackText($redpack_en, $mall_id),'money' => $money]];
                        }
                        $goods['goods_details'][0]['marketing']['deduct_currency'] = $deduct_currency;// 插入order_marketing表数据
                        $goods_price = $item['goods'][$goods_id]['goods_price'];
                        $item['goods'][$goods_id]['goods_price'] -= $money;// 此商品减扣后的金额计算
                        if($item['goods'][$goods_id]['goods_price']<0){
                            $item['goods'][$goods_id]['goods_price'] = 0;
                            $money = $goods_price;
                        }
                        $deduct_money += $money;

                        $deduct_arr[$redpack_en] = empty($deduct_arr[$redpack_en]) ? $money : $deduct_arr[$redpack_en] + $money;
                    }
                }
                $goods['goods_details'][0]['marketing']['deduct_currency'] = json_encode($goods['goods_details'][0]['marketing']['deduct_currency']);
            }

            // 计算订单减扣后的金额
            if ($deduct_money > 0) {
                $item['mch_order_info']['pay_money'] -= $deduct_money;
                $item['mch_order_info']['goods_price'] -= $deduct_money;

                // 扣减红包金额
                if ($form->action == AppEnum::ACTION_CREATE) {
                    foreach ($deduct_arr as $key => $deduct_redpack_money) {
                        $res = RedpackWallet::setData([
                            'mall_id' => $mall_id,
                            'user_id' => $user_id,
                            'is_frozen' => $key == RedpackEnum::WALLET_REDPACK ? false : true,
                            'money' => -$deduct_redpack_money,
                            'from_type' => RedpackEnum::FROM_DEDUTION,
                        ], false);
                        if ($res == false) throw new \Exception(RedpackWallet::getStaticError());
                    }
                }
            }

            return $item;
        } catch (\Exception $e) {
            self::setStaticError($e->getMessage());
            return false;
        }
    }


    public static function compute($item, &$form, array &$extra = [])
    {
        try {
            $mall_id = $item['mch_order_info']['mall_id'];
            $user_id = $item['mch_order_info']['user_id'];
            $redpack_text_arr = RedpackEnum::getRedpackText('', $mall_id);// 红包中文名称
            $deduct_money = 0;// 抵扣总额
            $deduct_arr = [];// 抵扣冻结跟金额数组
            // 商品处理
            $user_red_pack_wallet = RedpackWallet::findOne(['user_id'=>$user_id, 'status' => StatusEnum::ENABLED]);

            foreach ($item['goods'] as $goods_id => &$goods) {
                // 查询该商品是否设置了红包抵扣
                $redpack = RedpackGoodsSetting::find()->where(['goods_id' => $goods_id, 'is_enable' => StatusEnum::ENABLED, 'status' => StatusEnum::ENABLED])->asArray()->all();
                if (empty($redpack)) continue;

                // 单件抵扣：比如单件抵扣10元，购买A商品共3件，每件50元，总价=150元，可抵扣的金额30元
                // 多件抵扣：比如多件抵扣10元，购买A商品共3件，每件50元，总价=150元，可抵扣的金额10元
                foreach ($redpack as $value) {
                    $total_goods_price = array_sum(array_column($goods['goods_details'],'goods_price'));//同一种商品不同规格总价格
                    $total_num = array_sum(array_column($goods['goods_details'],'num'));// 同一种商品不同规格总数量

                    if (!empty($value['is_deduct_percent'])) {
                        // 按照百分比抵扣 = 商品金额 * 设置比例 / 100；百分比抵扣跟商品数量无关
                        $money = $item['goods'][$goods_id]['goods_price'] * $value['deduct_money'] / 100;
                    } else {
                        // 固定金额抵扣
                        $money = $value['deduct_type'] == 2 ? $value['deduct_money'] : $value['deduct_money'] * $total_num;// 计算抵扣金额
                    }

                    if($user_red_pack_wallet[$value['redpack_wallet_type']]<$money){
                        $money = $user_red_pack_wallet[$value['redpack_wallet_type']];
                    }
                    $user_red_pack_wallet[$value['redpack_wallet_type']] -= $money;// 余额逐步减少

                    if($money<=0) continue;
                    $redpack_text = $redpack_text_arr[$value['redpack_wallet_type']];// 红包中文名称
                    $redpack_en = $value['redpack_wallet_type'];// 红包英文标识
                    // 检查是否有被选中
                    $temp_total_deduct_money = 0;
                    $is_use = false;
                    if($total_goods_price<=0) continue;
                    if (!empty($form->data['is_use_' . $redpack_en])) $is_use = true;
                    foreach ($goods['goods_details'] as $k=>&$detail) {
                        $rate = $detail['goods_price']/$total_goods_price;
                        if(!isset($goods['goods_details'][$k+1])){
                            //最后一个
                            $temp_deduct_money = bcsub($money, $temp_total_deduct_money, 2);
                        } else {
                            $temp_deduct_money = bcmul($rate, $money, 2);
                        }

                        if( $detail['goods_price']>$temp_deduct_money){
                            $is_use && $detail['goods_price'] -= $temp_deduct_money;
                        }else{
                            // $temp_deduct_money = $detail['goods_price'];
                            $is_use && $detail['goods_price'] =0;
                        }

                        $temp_total_deduct_money += $temp_deduct_money;
                        if ($is_use) {
                            $deduct_currency = $detail['marketing']['deduct_currency'];
                            if($deduct_currency){
                                $deduct_currency = json_decode($deduct_currency,true);
                                $deduct_currency = (array_merge($deduct_currency, [$redpack_en => ['name' => RedpackEnum::getRedpackText($redpack_en, $mall_id),'money' => $temp_deduct_money]]));// 将合并的数组转为json字符串
                            }else{
                                $deduct_currency = [$redpack_en => ['name' => RedpackEnum::getRedpackText($redpack_en, $mall_id),'money' => $temp_deduct_money]];
                            }
                            $detail['marketing']['deduct_currency'] = json_encode($deduct_currency);// 插入order_marketing表数据
                        }
                    }
                    if ($is_use) {
                        $item['goods'][$goods_id]['goods_price'] -= $temp_total_deduct_money;// 此商品减扣后的金额计算
                        if($item['goods'][$goods_id]['goods_price']<0) $item['goods'][$goods_id]['goods_price'] = 0;
                        $deduct_arr[$redpack_en] = empty($deduct_arr[$redpack_en]) ? $temp_total_deduct_money : $deduct_arr[$redpack_en] + $temp_total_deduct_money;
                    }

                    // 前端抵扣数据展示组合
                    if ($form->action == AppEnum::ACTION_PREVIEW) {
                        $form->marketing['deduct'][$redpack_en] = [
                            'name' => $redpack_text,
                            'deduct_val' => empty($form->marketing['deduct'][$redpack_en]['deduct_val']) ? round($temp_total_deduct_money, 2) : bcadd($form->marketing['deduct'][$redpack_en]['deduct_val'], $temp_total_deduct_money, 2),
                            'money' => empty($form->marketing['deduct'][$redpack_en]['money']) ? round($temp_total_deduct_money, 2) :  bcadd($form->marketing['deduct'][$redpack_en]['money'], $temp_total_deduct_money, 2),
                            'is_show_radio' => true,// 是否显示单选按钮
                            'is_use' => $is_use,// 是否被选中单选按钮
                        ];
                    }
                    $is_use && $deduct_money += $temp_total_deduct_money;
                }
            }

            // 计算订单减扣后的金额
            if ($deduct_money > 0) {
                $item['mch_order_info']['pay_money'] -= $deduct_money;
                $item['mch_order_info']['goods_price'] = bcsub(floatval($item['mch_order_info']['goods_price']), $deduct_money, 2);
                // 扣减红包金额

                if ($form->action == AppEnum::ACTION_CREATE && $deduct_arr) {
                    foreach ($deduct_arr as $key => $deduct_redpack_money) {
                        self::checkRedpack($mall_id, $user_id, $deduct_redpack_money, $key);
                    }
                }
            }
            return $item;
        } catch (\Exception $e) {
            self::setStaticError($e->getMessage());
            return false;
        }
    }

    /**
     * 检测用户余额是否足够
     * @param $mall_id
     * @param $user_id
     * @param $money
     * @param $redpack_type
     * @return void
     * @throws \Exception
     */
    public static function checkRedpack($mall_id, $user_id, $money, $redpack_type)
    {
        $wallet = RedpackWallet::findOne(['user_id' => $user_id, 'status' => StatusEnum::ENABLED]);
        if (empty($wallet)) throw new \Exception(RedpackEnum::getRedpackText($redpack_type, $mall_id) . "余额不足");
        if ($wallet[$redpack_type] < $money) throw new \Exception(RedpackEnum::getRedpackText($redpack_type, $mall_id) . "余额不足");
    }
}