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<?php
namespace Fooman\PdfCustomiser\Block;

/**
 * Create pdf for invoices
 *
 * @author     Kristof Ringleff
 * @copyright  Copyright (c) 2009 Fooman Limited (http://www.fooman.co.nz)
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
class Invoice extends AbstractSalesDocument
{
    const XML_PATH_TITLE = 'sales_pdf/invoice/invoicetitle';

    const LAYOUT_HANDLE= 'fooman_pdfcustomiser_invoice';
    const PDF_TYPE = 'invoice';

    /**
     * @return \Magento\Sales\Api\Data\OrderInterface
     */
    public function getOrder()
    {
        return $this->getInvoice()->getOrder();
    }

    /**
     * return array of variables to be passed to the template
     *
     * @return array
     */
    public function getTemplateVars()
    {
        return array_merge(
            parent::getTemplateVars(),
            ['invoice' => $this->getInvoice()]
        );
    }

    /**
     * @return \Magento\Sales\Api\Data\InvoiceInterface
     */
    public function getSalesObject()
    {
        return $this->getInvoice();
    }

    /**
     * get main heading for invoice title ie TAX INVOICE
     *
     * @return string
     * @access public
     */
    public function getTitle()
    {
        return $this->_scopeConfig->getValue(
            self::XML_PATH_TITLE,
            \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
            $this->getStoreId()
        );
    }
}