How to Copy One Quote to Another Quote Programmatically.

use Magento\Framework\App\Action\Context;

use Magento\Framework\View\Result\PageFactory;

use Magento\Quote\Model\QuoteFactory;

use Magento\Checkout\Model\Cart;

use Magento\Catalog\Model\ProductFactory;

class Copyquote extends \Magento\Framework\App\Action\Action

{

protected $_resultPageFactory;

protected $quoteFactory;

protected $formKey;

protected $cart;

protected $product;

public function __construct(Context $context,

PageFactory $resultPageFactory,

QuoteFactory $quoteFactory,

Cart $cart,

ProductFactory $product)

{

$this->_resultPageFactory = $resultPageFactory;

$this->quoteFactory = $quoteFactory;

$this->cart = $cart;

$this->product = $product;

parent::__construct($context);

}

public function execute()

{

try

{

$id = ‘YOUR QUOTE ID’

if($id > 0)

{

$quote = $this->quoteFactory->create()->load($id);

$items = $quote->getAllVisibleItems();

foreach ($items as $item)

{

$productId =$item->getProductId();

$_product = $this->product->create()->load($productId);

$options = $item->getProduct()->getTypeInstance(true)->getOrderOptions($item->getProduct());

$info = $options['info_buyRequest'];

$request1 = new \Magento\Framework\DataObject();

$request1->setData($info);

$this->cart->addProduct($_product, $request1);

}

$this->cart->save();

}

catch (\Exception $e)

{

$this->messageManager->addError( __($e->getMessage()) );

}

}

}