fixed price

app/Services/ConfigService.php

@@ -487,11 +487,49 @@ class ConfigService
         $closed = $this->isOutsideTradingHours($now);
         Cnt::where('key', 'app_closed')->update(['value' => $closed ? 'true' : 'false']);
 
-        if ($closed) {
-            $this->UpdateConfig('montzar_closed', 'true');
+        return $closed;
+    }
+
+    /**
+     * montzar_closed فقط وضعیت sync زنده است — نباید به‌تنهایی سفارش را ببندد.
+     * اگر sync خطا داد ولی montzar_live_price و open_buy/sell معتبرند، معامله باز بماند.
+     */
+    public function applyMontzarSyncFailure(): void
+    {
+        $staleLive = $this->getInt('montzar_live_price', 0);
+        $stillOpen = $this->getBool('montzar_open_buy', false)
+            || $this->getBool('montzar_open_sell', false);
+
+        $this->UpdateConfig(
+            'montzar_closed',
+            ($staleLive > 0 && $stillOpen) ? 'false' : 'true'
+        );
+    }
+
+    public function assertMontzarOrderAllowed(int $direction): void
+    {
+        if (!$this->usesMontzarPricing()) {
+            return;
         }
 
-        return $closed;
+        $direction = (int) $direction;
+        $openBuy = $this->getBool('montzar_open_buy', true);
+        $openSell = $this->getBool('montzar_open_sell', true);
+
+        if ($direction === 1 && !$openBuy) {
+            throw new UnprocessableEntityHttpException('عدم ارائه سرویس.');
+        }
+
+        if ($direction === 2 && !$openSell) {
+            throw new UnprocessableEntityHttpException('عدم ارائه سرویس.');
+        }
+
+        if ($this->getBool('montzar_closed', false)) {
+            $basePrice = app(ProductDisplayPriceService::class)->resolveOrderBasePrice();
+            if ($basePrice <= 0) {
+                throw new UnprocessableEntityHttpException('عدم ارائه سرویس.');
+            }
+        }
     }
 
     public function formatTradingTimeForDisplay(string $time): string

app/Services/ProductDisplayPriceService.php

@@ -360,6 +360,54 @@ class ProductDisplayPriceService
         return $this->extractBaseFromPayload($this->livePricePayload());
     }
 
+    /** قیمت پایه سفارش — همان منبع نمایش اپ (کش / montzar_live_price / prices) */
+    public function resolveOrderBasePrice(?Product $product = null): int
+    {
+        $this->warmLivePriceCache();
+
+        if ($product instanceof Product) {
+            if ($this->usesAppPrice($product)) {
+                $useLast = $this->productUsesLastPriceIfZero($product);
+                $base = $useLast
+                    ? $this->resolveAppBasePrice()
+                    : $this->resolveStrictLiveAppBasePrice();
+
+                if ($base <= 0 && $useLast) {
+                    return $this->resolveLastPriceFallback($product);
+                }
+
+                if ($base <= 0) {
+                    return 0;
+                }
+
+                $offset = Product::hasPriceOffsetColumn()
+                    ? (float) ($product->price_offset_percent ?? 0)
+                    : 0.0;
+
+                return ProductPriceService::adjustedTotal($base, 0, $offset);
+            }
+
+            if ($product->reading_method) {
+                $this->enrichForApi(collect([$product]));
+                $unit = (int) (($product->price ?? 0) + ($product->price_profit ?? 0));
+                if ($unit > 0) {
+                    return $unit;
+                }
+            }
+
+            if ((int) ($product->direct_price ?? 0) === 1) {
+                return (int) (($product->price ?? 0) + ($product->price_profit ?? 0));
+            }
+        }
+
+        $base = $this->resolveAppBasePrice();
+        if ($base > 0) {
+            return $base;
+        }
+
+        return $this->resolveHistoricalBasePrice();
+    }
+
     /** @param array<string, mixed> $payload */
     private function extractBaseFromPayload(array $payload): int
     {