Add formula-based product pricing (P/W/MG) for Parsian-style unit prices.

Port FormulaPriceService from colleague app so admins can compute a single unit price from reference mid, weight, and wage instead of offset coefficients.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Http/Controllers/Admin/ProductController.php

@@ -15,11 +15,13 @@ use Illuminate\Support\Facades\Http;
 use \App\Http\Controllers\Customer\FundController;
 use App\Http\Controllers\Site\ReportController;
 use App\Services\ConfigService;
+use App\Services\FormulaPriceService;
 use App\Services\ProductDisplayPriceService;
 use App\Services\ProductPriceService;
 use App\Services\ProductPriceSyncService;
 use App\Services\PriceBroadcastService;
 use App\Services\CategoryService;
+use App\Services\ZaarboxPriceService;
 use Illuminate\Support\Facades\Schema;
 
 
@@ -117,6 +119,11 @@ class ProductController extends SuperController
         $data = $this->filterProductData($request->all());
 
         $product = Product::create($data);
+
+        if (FormulaPriceService::isEnabled($product) && $product->reading_method) {
+            app(ZaarboxPriceService::class)->syncProductFromApi($product);
+        }
+
         $this->broadcastPricesAfterResponse(true);
 
         return $this->resultCreate($product->id);
@@ -134,7 +141,10 @@ class ProductController extends SuperController
         }
         // قیمت دستی ⇒ تعدیل مرجع بی‌معناست و صفر می‌شود.
         // قیمت اپ در filterProductData عمداً price=0 می‌گذارد؛ نباید تعدیل را پاک کند.
-        if (isset($data['price']) && empty($data['app_price'])) {
+        // قیمت فرمولی reading_method می‌خواهد — با وجود price ذخیره‌شده مرجع را پاک نکن.
+        $formulaEnabled = Product::hasPriceFormulaColumns()
+            && filter_var($data['price_formula_enabled'] ?? false, FILTER_VALIDATE_BOOLEAN);
+        if (isset($data['price']) && empty($data['app_price']) && ! $formulaEnabled) {
             $data['reading_method'] = null;
             if (Product::hasPriceOffsetColumn()) {
                 $data['price_offset_percent'] = 0;
@@ -166,6 +176,7 @@ class ProductController extends SuperController
             && $product->reading_method
             && array_key_exists('price_offset_percent', $data)
             && !$clearingReadingMethod
+            && ! $formulaEnabled
         ) {
             ProductPriceService::reapplyOffsetPercent(
                 $product,
@@ -176,6 +187,12 @@ class ProductController extends SuperController
         }
 
         $product->update($data);
+        $product->refresh();
+
+        if (FormulaPriceService::isEnabled($product) && $product->reading_method) {
+            app(ZaarboxPriceService::class)->syncProductFromApi($product);
+        }
+
         $this->broadcastPricesAfterResponse(true);
 
         return response()->json(true);
@@ -659,6 +676,35 @@ class ProductController extends SuperController
                 }
                 $data['price'] = 0;
                 $data['price_profit'] = 0;
+                if (Product::hasPriceFormulaColumns()) {
+                    $data['price_formula_enabled'] = false;
+                }
+            }
+        }
+
+        if (!Product::hasPriceFormulaColumns()) {
+            unset($data['price_formula_enabled'], $data['price_formula']);
+        } else {
+            $formulaEnabled = filter_var($data['price_formula_enabled'] ?? false, FILTER_VALIDATE_BOOLEAN);
+            $data['price_formula_enabled'] = $formulaEnabled;
+            $formula = trim((string) ($data['price_formula'] ?? ''));
+            if ($formulaEnabled) {
+                if ($formula === '') {
+                    $formula = FormulaPriceService::DEFAULT_FORMULA;
+                }
+                $data['price_formula'] = $formula;
+                $data['app_price'] = false;
+                if (Product::hasDirectPriceColumn()) {
+                    $data['direct_price'] = 1;
+                }
+                if (Product::hasPriceOffsetColumn()) {
+                    $data['price_offset_percent'] = 0;
+                }
+                if (empty($data['reading_method'])) {
+                    throw new UnprocessableEntityHttpException('برای قیمت فرمولی، یک مرجع قیمت انتخاب کنید');
+                }
+            } else {
+                $data['price_formula'] = $formula !== '' ? $formula : null;
             }
         }