<?php

use App\ECommerce\Product\Entity as ProductEntity;

class App_ECommerce_Checkout_Obj extends App_ECommerce_Checkout_Abstract_Obj
{
    protected $_htmlPlaceholdersFields = array('id' => 'Order #');

    public function getPlaceholdersData()
    {
        if (($id = $this->getTransactionId()) !== null) {
            $this->setPrimaryKey($id);
            $this->_setHtmlPlaceholdersData($this->getData());

            /** @var App_Doc_Site $doc */
            $doc = Zend_Registry::get('doc');
            if ($doc->isGtmEnabled()) {
                $this->_setGtmValues();
            }
        } else {
            $url = Qs_SiteMap::findFirst(null, ['type' => 'ECommerce_Cart_'], ['type' => 'default'], 'url');
            Qs_Http::redirect($url);
        }

        return parent::getPlaceholdersData();
    }

    public function getPlaceholdersPreviewData()
    {
        $this->_setHtmlPlaceholdersData(array_fill_keys(array_keys($this->_htmlPlaceholdersFields), 'X'));
        return parent::getPlaceholdersData();
    }

    protected function _setGtmValues()
    {
        $transactionData = $this->getData();

        $cartObj = new App_ECommerce_Cart_Obj();
        $cartObj->setPrimaryKey($cartObj->getCartIdByTransaction($transactionData['id']));
        $products = $cartObj->getList();

        $categories = $this->_getGtmProductCategories(Qs_Array::fetchCol($products, 'productCategoryId'));
        foreach ($products as &$product) {
            $product['productCategory'] = Qs_Array::get($categories, (string) $product['productCategoryId'], '');
        }
        unset($product);

        /** @var App_Doc_Site $doc */
        $doc = Zend_Registry::get('doc');
        $doc->addGtmValues(Qs_Gtm::adGetPurchase($transactionData, $products));
        //$doc->addGtmValues(Qs_Gtm::gaGetECommerce($transactionData, $products)); // disabled, by default using enhanced ecommerce
        $doc->addGtmValues(Qs_Gtm::eeGetMeasuringPurchases($transactionData, $products));

        return $this;
    }

    protected function _getGtmProductCategories(array $productIds)
    {
        $categories = [];
        if ($productIds) {
            $select = $this->_db->select();
            $select->from($this->_getPair('ProductCategory', 'pc'), ['id', 'title']);
            $select->where('`pc`.`id` IN (?)', $productIds, Qs_Db::INT_TYPE);
            $categories = $this->_db->fetchPairs($select);
        }
        return $categories;
    }
}