<?php
/**
 * Module allow edit existing orders and set rules for automatically generating numbers for orders and other documents
 * 
 * @author    Keshva <keshvathakur47@gmail.com>
 * @copyright 2021 Keshva
 * @license   http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
 */
 
if (!defined('_PS_VERSION_'))
	exit;

require_once(_PS_MODULE_DIR_.'modrefchange/classes/DocumentReferences.php');

class OrderInvoice extends OrderInvoiceCore
{
	private static function loadDocumentReferences()
	{
		if (!class_exists('DocumentReferences')) {
			require_once(_PS_MODULE_DIR_.'modrefchange/classes/DocumentReferences.php');
		}
	}

	public function getInvoiceNumberFormatted($id_lang, $id_shop = null, $oldFormat = false)
	{
        self::loadDocumentReferences();
        $reference = DocumentReferences::getReference($this->id, 'invoice');
        $invoiceNumber = $reference ? $reference['reference'] : null;
        if ($oldFormat || $invoiceNumber == NULL) {
            return parent::getInvoiceNumberFormatted($id_lang, $id_shop);
        }
        return $invoiceNumber;
	}
}