回筐、账单完成

2026-08-14 01:19:47 +08:00
parent e35c951a59
commit bf8ac68391
39 changed files with 1392 additions and 963 deletions
@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\BillModel;
+use App\Models\ProductModel;
+use App\Models\StoreOrderItemModel;
+
+/**
+ * 账单详情数据组装（后台门店账单页与小程序账单详情共用）
+ */
+class BillDetailService
+{
+    /**
+     * 合并后的商品明细：按商品聚合账单关联的全部订单明细
+     * 单价为加权平均口径（Σ金额÷Σ数量），保证 单价×数量=金额
+     *
+     * @return array<int, array{product_id: int, product_name: string, product_spec: string, unit: string, price: string, quantity: int, weight: string, amount: string}>
+     */
+    public function mergedItems(BillModel $bill): array
+    {
+        $items = StoreOrderItemModel::query()
+            ->where('bill_id', $bill->id)
+            ->orderBy('id')
+            ->get();
+
+        // 排序键：分类 sort → 商品 sort（与采购单明细矩阵同序）
+        $products = ProductModel::withTrashed()
+            ->with('category:id,sort')
+            ->whereIn('id', $items->pluck('product_id')->unique())
+            ->get()
+            ->keyBy('id');
+
+        $rows = [];
+        foreach ($items->groupBy('product_id') as $productId => $group) {
+            $product = $products->get((int) $productId);
+            $first = $group->first();
+            $quantity = 0;
+            $weight = '0';
+            $amount = '0';
+            foreach ($group as $item) {
+                $quantity += (int) $item->quantity;
+                $weight = bcadd($weight, (string) $item->weight, 3);
+                $amount = bcadd($amount, (string) $item->amount, 2);
+            }
+
+            $rows[] = [
+                'product_id' => (int) $productId,
+                'product_name' => $first->product_name,
+                'product_spec' => $first->product_spec,
+                'unit' => $first->unit,
+                'price' => $quantity > 0
+                    ? bcdiv($amount, (string) $quantity, 2)
+                    : (string) $first->price,
+                'quantity' => $quantity,
+                'weight' => $weight,
+                'amount' => $amount,
+                'category_sort' => (int) ($product->category->sort ?? 9999),
+                'product_sort' => (int) ($product->sort ?? 9999),
+            ];
+        }
+        usort($rows, static fn (array $a, array $b): int =>
+            [$a['category_sort'], $a['product_sort'], $a['product_id']]
+            <=> [$b['category_sort'], $b['product_sort'], $b['product_id']]);
+
+        return array_map(static function (array $row): array {
+            unset($row['category_sort'], $row['product_sort']);
+            return $row;
+        }, $rows);
+    }
+}