<?php

use KupShop\OrderingBundle\Util\Order\OrderItemInfo;

/**
 * @param array  $params
 * @param Smarty $smarty
 *
 * @return string
 */
function smarty_function_pohoda_get_vat_level($params, &$smarty)
{
    // TODO: předělat na VatContext + ContextManager @h.prokop
    static $vats = null;

    if (is_null($vats)) {
        $vats = [];
        $vatsSQL = sqlQueryBuilder()->select('*')->from('vats');
        foreach ($vatsSQL->execute() as $vat) {
            $data = json_decode($vat['data'], true);
            $vats[$vat['id_country'] ?? 'CZ'][$vat['vat']] = $data['level'] ?? 'high';
        }
    }

    /** @var \Order $order */
    $order = $params['order'];
    $item = $params['item'];
    $country = strtoupper($order['delivery_country'] ?? 'CZ');

    $oss = $order->getFlags()['OSS'] ?? false;

    $POHODA_OSS_VAT_LEVELS = [
        OrderItemInfo::VAT_HIGH => 'historyHigh',
        OrderItemInfo::VAT_LOW => 'historyLow',
        OrderItemInfo::VAT_LOW2 => 'historyThird',
        OrderItemInfo::VAT_NONE => 'none',
    ];

    $POHODA_VAT_LEVELS = [
        OrderItemInfo::VAT_HIGH => 'high',
        OrderItemInfo::VAT_LOW => 'low',
        OrderItemInfo::VAT_LOW2 => 'third',
        OrderItemInfo::VAT_NONE => 'none',
    ];

    if ($item['vat'] == 0) {
        return 'none';
    }

    $level = $vats[$country][$item['vat']] ?? 'high';
    $levels = $oss ? $POHODA_OSS_VAT_LEVELS : $POHODA_VAT_LEVELS;

    return $levels[$level];
}