<?php

/**
 * Subclass for representing a row from the 'st_tax' table.
 *
 *
 *
 * @package plugins.stTaxPlugin.lib.model
 */
class Tax extends BaseTax
{
    protected $prevVat = null;

    /**
     * Kraj dostawy
     *
     * @var Countries
     */
    protected $deliveryCountry = null;

    public function getIsSystemDefault()
    {
        return parent::getIsSystemDefault() || $this->getIsDefault();
    }

    public function setEditIsDefault($v)
    {
        $this->setIsDefault($v);
    }

    public function isSystemDefault()
    {
        return parent::getIsSystemDefault();
    }

    public function __sleep()
    {
        return array_keys($this->toArray(BasePeer::TYPE_FIELDNAME));
    }

    public function __wakeup()
    {
        $this->setNew(false);
        $this->resetModified();
    }

    public function __serialize()
    {
        return $this->toArray(BasePeer::TYPE_FIELDNAME);
    }

    public function __unserialize(array $data)
    {
        $this->fromArray($data, BasePeer::TYPE_FIELDNAME);
        $this->setNew(false);
        $this->resetModified();
    }

    /**
     * Obsługa domyślności funkcji VAT
     *
     * @author Marcin Butlak <marcin.butlak@sote.pl>
     *
     * @param unknown_type $con
     */
    public function save($con = null)
    {
        if (($this->isColumnModified(TaxPeer::IS_DEFAULT)) && ($this->getIsDefault()))
        {
            $c = new Criteria();

            $c->add(TaxPeer::IS_DEFAULT, 1);

            $tax = TaxPeer::doSelectOne($c);

            if ($tax)
            {
                $tax->setIsDefault(false);

                $tax->save();
            }
        }

        $ret = parent::save($con);

        TaxPeer::clearCache();

        return $ret;
    }

    public function delete($con = null)
    {
        $ret = parent::delete($con);

        TaxPeer::clearCache();

        return $ret;
    }

    /**
     * Zwraca stawkę VAT dla kraju dostawy
     *
     * @return string|null Stawka VAT [%]
     */
    public function getTaxRateByCountry()
    {
        $country = $this->getDeliveryCountry();

        $config = stConfig::getInstance('stShopInfoBackend');

        if (stTax::getIsCustomerEuTaxEnabled() && null !== $country && $country->getIsoA2() != $config->get('country') && isset($this->rates_by_country[$country->getIsoA2()]))
        {
            return $this->rates_by_country[$country->getIsoA2()];
        }

        return null;
    }

    /**
     *
     * Przeciążenie metody - zapamiętywanie poprzedniej stawki VAT
     *
     * @param float $v Stawka VAT
     *
     * @author Marcin Butlak <marcin.butlak@sote.pl>
     */
    public function setVat($v)
    {
        if (!$this->isColumnModified(TaxPeer::VAT) && !$this->isNew())
        {
            $this->prevVat = $this->getVat();
        }

        parent::setVat($v);
    }

    public function getDefaultTaxRate()
    {
        return parent::getVat();
    }

    public function getVat()
    {
        $vat = parent::getVat();

        $countryTaxRate = $this->getTaxRateByCountry();

        return $countryTaxRate ? $countryTaxRate : $vat;
    }

    /**
     * Wyświetlenie nazwy zamiast id
     *
     * @return   unknown
     */
    public function __toString()
    {
        return $this->getVat() . '%';
    }

    /**
     * Zwraca kraj dostawy
     *
     * @return  Countries
     */
    public function getDeliveryCountry()
    {
        if (null === $this->deliveryCountry && stConfig::getInstance('stTaxBackend')->get('is_customer_eu_tax_enabled'))
        {
            $id = sfContext::getInstance()->getUser()->getAttribute('delivery_country', null, stDeliveryFrontend::SESSION_NAMESPACE);
            $this->deliveryCountry = CountriesPeer::retrieveById($id);
        }

        return $this->deliveryCountry;
    }

    /**
     * Ustawia kraj dostawy
     *
     * @param  Countries  $deliveryCountry  Kraj dostawy
     *
     * @return  self
     */
    public function setDeliveryCountry(Countries $deliveryCountry = null)
    {
        $this->deliveryCountry = $deliveryCountry;

        return $this;
    }
}