fix bug

app/Models/Product.php

@@ -17,6 +17,7 @@ class Product extends Model
 
     private static ?bool $priceOffsetColumnExists = null;
     private static ?bool $priceColumnExists = null;
+    private static ?bool $orderLimitColumnsExist = null;
 
     protected static function booted(): void
     {
@@ -24,6 +25,13 @@ class Product extends Model
             if (!static::hasPriceOffsetColumn()) {
                 unset($product->attributes['price_offset_percent']);
             }
+            if (!static::hasOrderLimitColumns()) {
+                unset(
+                    $product->attributes['order_limit_enabled'],
+                    $product->attributes['min_order_cash'],
+                    $product->attributes['max_order_cash']
+                );
+            }
         });
     }
 
@@ -61,6 +69,55 @@ class Product extends Model
         return static::$priceColumnExists;
     }
 
+    public static function hasOrderLimitColumns(): bool
+    {
+        if (static::$orderLimitColumnsExist !== null) {
+            return static::$orderLimitColumnsExist;
+        }
+
+        try {
+            static::$orderLimitColumnsExist = Schema::hasColumn(
+                (new static)->getTable(),
+                'order_limit_enabled'
+            );
+        } catch (\Throwable) {
+            static::$orderLimitColumnsExist = false;
+        }
+
+        return static::$orderLimitColumnsExist;
+    }
+
+    public function orderLimitsEnabled(): bool
+    {
+        if (!static::hasOrderLimitColumns() || !($this->order_limit_enabled ?? false)) {
+            return false;
+        }
+
+        return $this->min_order_cash !== null || $this->max_order_cash !== null;
+    }
+
+    public function validateOrderCashLimit(float $totalPriceRial): void
+    {
+        if (!$this->orderLimitsEnabled()) {
+            return;
+        }
+
+        $min = $this->min_order_cash;
+        $max = $this->max_order_cash;
+
+        if ($min !== null && $totalPriceRial < (float) $min) {
+            throw new \Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException(
+                'حداقل مبلغ این محصول ' . number_format((float) $min) . ' ریال می‌باشد'
+            );
+        }
+
+        if ($max !== null && $totalPriceRial > (float) $max) {
+            throw new \Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException(
+                'حداکثر مبلغ این محصول ' . number_format((float) $max) . ' ریال می‌باشد'
+            );
+        }
+    }
+
     public function getPriceOffsetPercentAttribute($value): float
     {
         if (!static::hasPriceOffsetColumn()) {
@@ -91,6 +148,9 @@ class Product extends Model
         'cash_fee_buy',         // Add cash_fee_buy to fillable
         'cash_fee_sell',        // Add cash_fee_sell to fillable
         'percent_fee_buy',       // Add percent_fee_buy to fillable
+        'order_limit_enabled',
+        'min_order_cash',
+        'max_order_cash',
         'metal_id',             //the material of metal (#gold or #silver)
         'price_offset_percent', // admin only: +/- % vs automatic reference (baked into price on sync)
         'price_profit',
@@ -109,6 +169,9 @@ class Product extends Model
         'price' => 'int',   // Cast to float.
         'percent_fee_sell' => 'float',   // Cast to float.
         'percent_fee_buy' => 'float',    // Cast to float.
+        'order_limit_enabled' => 'boolean',
+        'min_order_cash' => 'int',
+        'max_order_cash' => 'int',
         'cash_fee_buy' => 'int',     // Cast to int or decimal if needed
         'cash_fee_sell' => 'int',    // Cast to int or decimal if needed
         'price_offset_percent' => 'float',