feat: 實作銷售單匯入管理、貨道扣庫優化及 UI 細節調整

app/Modules/Inventory/Contracts/InventoryServiceInterface.php

@@ -15,16 +15,15 @@ interface InventoryServiceInterface
     public function checkStock(int $productId, int $warehouseId, float $quantity): bool;
 
     /**
-     * Decrease stock for a product (e.g., when an order is placed).
-     * 
      * @param int $productId
      * @param int $warehouseId
      * @param float $quantity
      * @param string|null $reason
      * @param bool $force
+     * @param string|null $slot
      * @return void
      */
-    public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null, bool $force = false): void;
+    public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null, bool $force = false, ?string $slot = null): void;
 
     /**
      * Get all active warehouses.

app/Modules/Inventory/Controllers/InventoryController.php

@@ -555,6 +555,7 @@ class InventoryController extends Controller
                     'userName' => $user ? $user->name : '系統',
                     'actualTime' => $tx->actual_time ? $tx->actual_time->format('Y-m-d H:i') : $tx->created_at->format('Y-m-d H:i'),
                     'batchNumber' => $tx->inventory?->batch_number ?? '-', // 補上批號資訊
+                    'slot' => $tx->inventory?->location, // 加入貨道資訊
                 ];
             });
 
@@ -585,7 +586,7 @@ class InventoryController extends Controller
             $userIds = $inventory->transactions->pluck('user_id')->filter()->unique()->toArray();
             $users = $this->coreService->getUsersByIds($userIds)->keyBy('id');
 
-            $transactions = $inventory->transactions->map(function ($tx) use ($users) {
+            $transactions = $inventory->transactions->map(function ($tx) use ($users, $inventory) {
                 $user = $tx->user_id ? ($users[$tx->user_id] ?? null) : null;
                 return [
                     'id' => (string) $tx->id,
@@ -596,6 +597,7 @@ class InventoryController extends Controller
                     'reason' => $tx->reason,
                     'userName' => $user ? $user->name : '系統', // 手動對應
                     'actualTime' => $tx->actual_time ? $tx->actual_time->format('Y-m-d H:i') : $tx->created_at->format('Y-m-d H:i'),
+                    'slot' => $inventory->location, // 加入貨道資訊
                 ];
             });
 

app/Modules/Inventory/Services/InventoryService.php

@@ -59,13 +59,18 @@ class InventoryService implements InventoryServiceInterface
         return $stock >= $quantity;
     }
 
-    public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null, bool $force = false): void
+    public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null, bool $force = false, ?string $slot = null): void
     {
-        DB::transaction(function () use ($productId, $warehouseId, $quantity, $reason, $force) {
-            $inventories = Inventory::where('product_id', $productId)
+        DB::transaction(function () use ($productId, $warehouseId, $quantity, $reason, $force, $slot) {
+            $query = Inventory::where('product_id', $productId)
                 ->where('warehouse_id', $warehouseId)
-                ->where('quantity', '>', 0)
-                ->orderBy('arrival_date', 'asc')
+                ->where('quantity', '>', 0);
+            
+            if ($slot) {
+                $query->where('location', $slot);
+            }
+
+            $inventories = $query->orderBy('arrival_date', 'asc')
                 ->get();
 
             $remainingToDecrease = $quantity;
@@ -80,19 +85,25 @@ class InventoryService implements InventoryServiceInterface
 
             if ($remainingToDecrease > 0) {
                 if ($force) {
-                    // Find any existing inventory record in this warehouse to subtract from, or create one
-                    $inventory = Inventory::where('product_id', $productId)
-                        ->where('warehouse_id', $warehouseId)
-                        ->first();
+                    // Find any existing inventory record in this warehouse/slot to subtract from, or create one
+                    $query = Inventory::where('product_id', $productId)
+                        ->where('warehouse_id', $warehouseId);
+                    
+                    if ($slot) {
+                        $query->where('location', $slot);
+                    }
+
+                    $inventory = $query->first();
                     
                     if (!$inventory) {
                         $inventory = Inventory::create([
                             'warehouse_id' => $warehouseId,
                             'product_id' => $productId,
+                            'location' => $slot,
                             'quantity' => 0,
                             'unit_cost' => 0,
                             'total_value' => 0,
-                            'batch_number' => 'POS-AUTO-' . time(),
+                            'batch_number' => 'POS-AUTO-' . ($slot ? $slot . '-' : '') . time(),
                             'arrival_date' => now(),
                             'origin_country' => 'TW',
                             'quality_status' => 'normal',