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<?php
/**
 * User: Rodion Abdurakhimov
 * Date: 24/6/16
 * Time: 11:36
 */

namespace Epages;

class DiscountCoupons
{
    /**
     * Returns status of coupon
     * @param $coupon
     * @return mixed
     * @throws \Bitrix\Main\ArgumentException
     * @throws \Exception
     */
    public static function getCouponStatus($coupon)
    {
        $couponResult = self::getCouponData($coupon);

        if (is_array($couponResult) && count($couponResult) > 0) {
            return $couponResult['used'];
        } else {
            throw new \Exception("Купон $coupon не найден");
        }
    }

    public static function setCouponAsUsed($coupon)
    {
        $couponResult = self::getCouponData($coupon);

        if (is_array($couponResult) && count($couponResult) > 0) {
            DiscountCouponsTable::update($couponResult['id'], ['used' => 'Y']);
        } else {
            throw new \Exception("Купон $coupon не найден");
        }
    }

    protected static function getCouponData($coupon)
    {
        if (strlen($coupon) > 0) {
            return DiscountCouponsTable::getList([
                'filter' => [
                    'coupon' => $coupon
                ]
            ])->fetch();
        } else {
            throw new \InvalidArgumentException('Купон должен быть строкой');
        }
    }
}