我想重构我的Laravel代码以遵守SOLID原则

    $itemPrice = CartItem::where('order_code',$orderCode)->pluck('total_price');
    $totalPrices = $itemPrice->sum();
   
    $orderCode = session('order_code');
    $gateway = 'banka';
    $total = $totalPrices;
    $bin_number = rand(1000,10000);
    $order_id = rand(1,100);
    $status = 1;
    $error_message = null;

    try
    {
      $paymentSuccessfull = false;
      if(!$paymentSuccessfull)
      {
        throw new \Exception('basarisiz'); 
      }
     Transaction::create([
        'gateway'=>$gateway,
        'order_id'=>$order_id,
        'total'=>$total,
        'eror_message'=>$error_message,
        'bin_number'=>$bin_number,
        'status'=>$status,
      ]);
      session()->forget('order_code');
      return response()->json(['message' => 'siparis tamamlandi']);
    }
    catch(\Exception $e)
    {
        $error_message = $e->getMessage();
        $status = 0;
        Transaction::where('order_id', $order_id)->update([
          'eror_message' => $error_message,
          'status' => $status,
      ]);

        
        return response()->json(['error' => $error_message]);
    }
  

我想让这段代码更可读,消除冗余,只执行一次创建操作,并有条件地更改状态值。“

我试图让代码更干净,但在这样做的时候,我无法将数据保存到数据库中。“