fixed عدهف

app/Http/Controllers/Controller.php

@@ -416,6 +416,86 @@ class Controller extends BaseController
         return in_array($group, ['سکه', 'گوی', 'مکعب', 'شمش', 'سکه پارسیان'], true);
     }
 
+    public static function productUnitPayload($product): array
+    {
+        if (!$product) {
+            return [];
+        }
+
+        if (is_array($product)) {
+            return $product;
+        }
+
+        return [
+            'unit' => $product->unit ?? null,
+            'direct_price' => $product->direct_price ?? null,
+            'group_type' => $product->group_type ?? null,
+            'amount' => $product->amount ?? null,
+            'trade_by_quantity' => $product->trade_by_quantity ?? null,
+        ];
+    }
+
+    public static function convertWeight(float $value, ?string $fromUnit, ?string $toUnit): float
+    {
+        $from = trim((string) ($fromUnit ?? ''));
+        $to = trim((string) ($toUnit ?? ''));
+
+        if ($from === '' || $to === '' || $from === $to) {
+            return $value;
+        }
+
+        $grams = self::weightToGrams($value, $from);
+
+        return $to === 'کیلوگرم' ? $grams / 1000 : $grams;
+    }
+
+    /**
+     * مقدار و واحد نمایشی تراکنش — منبع حقیقت: unit محصول در ادمین.
+     * معامله مقداری + وزن دارد: تعداد ذخیره‌شده × وزن هر واحد.
+     */
+    public static function resolveTransactionDisplayGoldAndUnit(?array $payload, float $gold, bool $onMainWallet = false): array
+    {
+        if ($payload === []) {
+            return [$gold, self::tradeWeightUnit()];
+        }
+
+        $sign = $gold < 0 ? -1 : 1;
+        $absGold = abs($gold);
+
+        if (
+            self::usesQuantityTrade($payload)
+            && self::hasProductUnitWeight($payload)
+            && self::isWeightBasedProductUnit($payload['unit'] ?? null)
+        ) {
+            $factor = (float) ($payload['amount'] ?? 1);
+
+            return [
+                round($absGold * $factor, 3) * $sign,
+                trim((string) $payload['unit']),
+            ];
+        }
+
+        $unit = self::productQuantityUnit($payload);
+        $productWeightUnit = self::isWeightBasedProductUnit($payload['unit'] ?? null)
+            ? trim((string) $payload['unit'])
+            : null;
+
+        if ($onMainWallet && $productWeightUnit) {
+            $tradeUnit = self::tradeWeightUnit();
+
+            if ($productWeightUnit !== $tradeUnit) {
+                return [
+                    round(self::convertWeight($absGold, $tradeUnit, $productWeightUnit), 3) * $sign,
+                    $productWeightUnit,
+                ];
+            }
+
+            return [$gold, $productWeightUnit];
+        }
+
+        return [$gold, $unit];
+    }
+
     public static function productQuantityUnit(?array $product): string
     {
         $unit = trim((string) ($product['unit'] ?? ''));
@@ -427,7 +507,7 @@ class Controller extends BaseController
             return 'عدد';
         }
 
-        return 'گرم';
+        return self::tradeWeightUnit();
     }
 
     /** مطابق ادمین: وزن «دارد» => amount > 0 ؛ «ندارد» => amount = 0 */

app/Http/Controllers/Customer/WalletController.php

@@ -137,11 +137,7 @@ class WalletController extends Controller
                         } else {
                             $record->title = ($record->gold > 0 ? self::productBuyTitle($wallet->product->title) : self::productSellTitle($wallet->product->title));
                         }
-                        $record->unit = self::productQuantityUnit([
-                            'unit' => $wallet->product->unit ?? null,
-                            'direct_price' => $wallet->product->direct_price ?? null,
-                            'group_type' => $wallet->product->group_type ?? null,
-                        ]);
+                        $record->unit = self::productQuantityUnit(self::productUnitPayload($wallet->product));
                     } else {
                         $record->title = $this->resolveMainWalletTransactionTitle($record);
                     }
@@ -560,30 +556,55 @@ class WalletController extends Controller
         }
 
         if (!empty($record->wallet?->product)) {
-            $record->unit = self::productQuantityUnit([
-                'unit' => $record->wallet->product->unit ?? null,
-                'direct_price' => $record->wallet->product->direct_price ?? null,
-                'group_type' => $record->wallet->product->group_type ?? null,
-            ]);
+            $this->applyProductTransactionUnit($record);
         }
     }
 
+    private function resolveTransactionProduct($record): ?Product
+    {
+        $partial = $record->wallet->product ?? $record->product ?? null;
+        $productId = (int) ($partial->id ?? $record->product_id ?? 0);
+
+        if ($productId <= 0) {
+            return $partial instanceof Product ? $partial : null;
+        }
+
+        return Product::query()
+            ->select([
+                'id',
+                'title',
+                'group_type',
+                'unit',
+                'direct_price',
+                'amount',
+                'trade_by_quantity',
+                'metal_id',
+            ])
+            ->find($productId) ?? ($partial instanceof Product ? $partial : null);
+    }
+
     private function applyProductTransactionUnit($record): void
     {
-        $product = $record->wallet->product ?? $record->product ?? null;
+        $product = $this->resolveTransactionProduct($record);
+
         if (!$product) {
-            if (!empty($record->gold) && empty($record->wallet?->product)) {
+            if (!empty($record->gold)) {
                 $record->unit = self::tradeWeightUnit();
             }
 
             return;
         }
 
-        $record->unit = self::productQuantityUnit([
-            'unit' => $product->unit ?? null,
-            'direct_price' => $product->direct_price ?? null,
-            'group_type' => $product->group_type ?? null,
-        ]);
+        $payload = self::productUnitPayload($product);
+        $onMainWallet = empty($record->wallet?->product_id);
+        [$displayGold, $unit] = self::resolveTransactionDisplayGoldAndUnit(
+            $payload,
+            (float) ($record->gold ?? 0),
+            $onMainWallet
+        );
+
+        $record->gold = $displayGold;
+        $record->unit = $unit;
     }
 
     private function isProductWalletTransaction($record): bool

packages/rooyesh/wallet/src/models/Transaction.php

@@ -43,7 +43,16 @@ class Transaction extends Model
     }
     public function product()
     {
-        return $this->belongsTo('App\Models\Product','product_id')->select(['id','title','group_type']);
+        return $this->belongsTo('App\Models\Product', 'product_id')->select([
+            'id',
+            'title',
+            'group_type',
+            'unit',
+            'direct_price',
+            'amount',
+            'trade_by_quantity',
+            'metal_id',
+        ]);
     }
     public function order()
     {

packages/rooyesh/wallet/src/models/Wallet.php

@@ -22,7 +22,13 @@ class Wallet extends Model
     }
     public function Product()
     {
-        return $this->belongsTo('App\Models\Product','product_id');
+        return $this->belongsTo('App\Models\Product', 'product_id');
+    }
+
+    /** @alias Product */
+    public function product()
+    {
+        return $this->Product();
     }
 
     /** کیف اصلی مشتری — بدون fund و بدون product */