fixed some bugs

app/Http/Controllers/Single/SingleOrderController.php

@@ -1490,12 +1490,15 @@ class SingleOrderController extends Controller
         $scPct = (float) ($data['service_charge_percentage'] ?? 0);
 
         if ($scGold > 0 || $scRial > 0) {
+            $feeAsset = (string) ($data['fee_asset'] ?? 'rial');
+            $fromMetal = $feeAsset === 'gold';
+            $assetLabel = $fromMetal ? 'از فلز/مقدار' : 'از ریال';
             $goldLabel = rtrim(rtrim(number_format($scGold, 4, '.', ''), '0'), '.') . ' گرم';
             $detailParts = [];
             if ($scPct > 0) {
                 $detailParts[] = rtrim(rtrim(number_format($scPct, 4, '.', ''), '0'), '.') . '%';
             }
-            if ($scGold > 0 && $priceOriginal > 0) {
+            if ($fromMetal && $scGold > 0 && $priceOriginal > 0) {
                 $detailParts[] = $goldLabel . ' × ' . number_format($priceOriginal) . ' = ' . number_format($scRial) . ' ریال';
             } elseif ($scRial > 0 && $priceOriginal > 0) {
                 $goldEquiv = $scRial / $priceOriginal;
@@ -1504,15 +1507,17 @@ class SingleOrderController extends Controller
             } else {
                 $detailParts[] = number_format($scRial) . ' ریال';
             }
+            $detailParts[] = $assetLabel;
 
             $receiptLines[] = [
                 'kind' => 'service_charge',
                 'key' => 'service_charge',
-                'label' => 'کارمزد معامله',
+                'label' => 'کارمزد معامله · ' . $assetLabel,
                 'is_percent' => $scPct > 0,
                 'raw' => $scPct,
                 'gold' => $scGold,
                 'rial' => $scRial,
+                'fee_asset' => $feeAsset,
                 'per_unit' => $amount > 0 ? ($scRial / $amount) : 0,
                 'amount_units' => $amount,
                 'total' => $scRial,