139 lines
4.9 KiB
PHP
139 lines
4.9 KiB
PHP
<?php
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namespace App\Services;
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use App\Exceptions\RepositoryException;
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use App\Models\ProductModel;
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use App\Models\PurchaseOrderModel;
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use App\Models\StoreOrderItemModel;
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use App\Models\StoreOrderModel;
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use Illuminate\Support\Facades\DB;
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use Throwable;
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/**
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* 采购单数据修改
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*/
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class PurchaseEditService
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{
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/**
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* 商品行修改：品名/供应商/包规/单位/成本一键同步该商品全部订货明细；
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* syncProduct = true 时同步更新商品档案（product 表）
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*
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* @param PurchaseOrderModel $purchase
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* @param int $productId
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* @param array{product_name?: string, supplier_id?: int, product_spec?: string, unit?: string, cost_price?: float} $attrs 行属性（仅同步传入键）
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* @param bool $syncProduct
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* @return int
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* @throws Throwable
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*/
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public function updateRow(PurchaseOrderModel $purchase, int $productId, array $attrs, bool $syncProduct = false): int
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{
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return DB::transaction(function () use ($purchase, $productId, $attrs, $syncProduct) {
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$items = StoreOrderItemModel::query()
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->where('purchase_id', $purchase->id)
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->where('product_id', $productId)
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->lockForUpdate()
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->get();
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if ($items->isEmpty()) {
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throw new RepositoryException('该采购单下无此商品的订货明细');
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}
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$sync = [];
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if (isset($attrs['product_name'])) {
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$sync['product_name'] = $attrs['product_name'];
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}
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if (isset($attrs['supplier_id'])) {
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$sync['supplier_id'] = (int) $attrs['supplier_id'];
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}
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if (isset($attrs['product_spec'])) {
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$sync['product_spec'] = $attrs['product_spec'];
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}
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if (isset($attrs['unit'])) {
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$sync['unit'] = $attrs['unit'];
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}
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if (isset($attrs['cost_price'])) {
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$sync['cost_price'] = bcadd((string) $attrs['cost_price'], '0', 2);
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}
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if ($sync !== []) {
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foreach ($items as $item) {
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$item->fill($sync)->save();
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}
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// 同步至商品档案
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if ($syncProduct) {
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$product = ProductModel::withTrashed()->find($productId);
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if ($product === null || $product->trashed()) {
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throw new RepositoryException('商品档案不存在或已删除，无法同步至商品');
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}
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$productAttrs = [];
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if (isset($sync['product_name'])) {
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$productAttrs['name'] = $sync['product_name'];
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}
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if (isset($sync['supplier_id'])) {
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$productAttrs['supplier_id'] = $sync['supplier_id'];
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}
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if (isset($sync['product_spec'])) {
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$productAttrs['spec'] = $sync['product_spec'];
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}
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if (isset($sync['unit'])) {
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$productAttrs['unit'] = $sync['unit'];
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}
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if (isset($sync['cost_price'])) {
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$productAttrs['cost_price'] = $sync['cost_price'];
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}
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$product->fill($productAttrs)->save();
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}
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}
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$this->recalculatePurchaseTotals($purchase);
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return $items->count();
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});
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}
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/**
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* 重算采购金额汇总
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*/
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public function recalculatePurchaseTotals(PurchaseOrderModel $purchase): void
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{
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$items = StoreOrderItemModel::query()
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->where('purchase_id', $purchase->id)
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->get(['quantity', 'cost_price']);
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$totalQuantity = 0;
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$estimate = '0';
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foreach ($items as $item) {
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$totalQuantity += $item->quantity;
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$item_estimate = bcmul($item->cost_price, $item->quantity, 2);
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$estimate = bcadd($estimate, $item_estimate, 2);
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}
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$purchase->total_quantity = $totalQuantity;
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$purchase->estimate_amount = $estimate;
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$purchase->save();
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}
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/**
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* 采购成本金额：称重>0 按 称重×单价，否则按 数量×单价
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*/
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public static function costAmount(string $quantity, string $weight, string $unitCost): string
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{
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return (float) $weight > 0
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? bcmul($weight, $unitCost, 2)
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: bcmul($quantity, $unitCost, 2);
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}
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/**
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* 单价 = 成本 / 包规数值（spec 解析不出正数时按 1 处理，即单价=成本）
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*/
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public static function unitCost(string $costPrice, string $spec): string
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{
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if (preg_match('/\d+(?:\.\d+)?/', $spec, $matches) === 1 && (float) $matches[0] > 0) {
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return bcdiv($costPrice, $matches[0], 2);
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}
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return bcadd($costPrice, '0', 2);
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}
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}
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