35 lines
1.2 KiB
PHP
35 lines
1.2 KiB
PHP
<?php
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namespace App\Services;
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use App\Models\StoreOrderModel;
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/**
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* 周转框/周转托盘数量修改（订单附加金额重算）
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*/
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readonly class StoreOrderContainerService
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{
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/**
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* 更新订单周转框/托盘数量并重算附加金额与订单总金额。
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* 历史订单未写商品金额：按「总额 - 附加」反推并回写，保证 总额 = 商品 + 附加 恒成立。
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*/
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public function update(StoreOrderModel $order, int $boxNum, int $trayNum): void
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{
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$boxPrice = (float) site_config('services.box_amount', 0);
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$trayPrice = (float) site_config('services.tray_amount', 0);
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$addedAmount = round($boxNum * $boxPrice + $trayNum * $trayPrice, 2);
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$productAmount = (float) $order->product_amount;
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if ($productAmount <= 0 && (float) $order->total_amount > 0) {
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$productAmount = round((float) $order->total_amount - (float) $order->added_amount, 2);
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}
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$order->box_num = $boxNum;
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$order->tray_num = $trayNum;
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$order->product_amount = $productAmount;
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$order->added_amount = $addedAmount;
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$order->total_amount = round($productAmount + $addedAmount, 2);
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$order->save();
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}
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}
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