oxvatselector.php

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<?php

class oxVatSelector extends oxSuperCfg
{
    protected $_blCatVatSet = null;

    protected static $_instance = null;

    public static function getInstance()
    {
        if ( !self::$_instance instanceof oxVatSelector ) {
                self::$_instance = oxNew('oxVatSelector');
        }
        return self::$_instance;
    }

    protected static $_aUserVatCache = array();

    public function getUserVat( oxUser $oUser, $blCacheReset = false )
    {
        if (!$blCacheReset) {
            $sId = $oUser->getId();
            if ( array_key_exists( $sId, self::$_aUserVatCache ) &&
                 self::$_aUserVatCache[$sId] !== null) {
                return self::$_aUserVatCache[$sId];
            }
        }

        $ret = false;

        $sCountryId = $this->_getVatCountry($oUser);

        if ($sCountryId) {
            $oCountry = oxNew('oxcountry');
            if (!$oCountry->load($sCountryId)) {
                throw oxNew( "oxObjectException" );
            }
            if ($oCountry->isForeignCountry()) {
                $ret = $this->_getForeignCountryUserVat($oUser, $oCountry);
            }
        }

        self::$_aUserVatCache[$oUser->getId()] = $ret;
        return $ret;
    }

    protected function _getForeignCountryUserVat(oxUser $oUser, oxCountry $oCountry )
    {
        if ($oCountry->isInEU()) {
            if ($oUser->oxuser__oxustid->value) {
                return 0;
            }
            return false;
        }

        return 0;
    }

    protected function _getVatForArticleCategory(oxArticle $oArticle)
    {
        $oDb = oxDb::getDb();
        $sCatT = getViewName('oxcategories');

        if ( $this->_blCatVatSet === null ) {
            $sSelect = "SELECT oxid FROM $sCatT WHERE oxvat IS NOT NULL LIMIT 1";

            //no category specific vats in shop?
            //then for performance reasons we just return false
            $this->_blCatVatSet = (bool) $oDb->getOne( $sSelect );
        }

        if ( !$this->_blCatVatSet ) {
            return false;
        }

        $sO2C = getViewName('oxobject2category');
        $sSql = "SELECT c.oxvat
                 FROM $sCatT AS c, $sO2C AS o2c
                 WHERE c.oxid=o2c.oxcatnid AND
                       o2c.oxobjectid = ".$oDb->quote( $oArticle->getId() )." AND
                       c.oxvat IS NOT NULL
                 ORDER BY o2c.oxtime ";

        $fVat = $oDb->getOne($sSql);
        if ($fVat !== false && $fVat !== null) {
            return $fVat;
        }

        return false;
    }

    public function getArticleVat(oxArticle $oArticle)
    {
        startProfile("_assignPriceInternal");
        // article has its own VAT ?

        if ( ( $dArticleVat = $oArticle->getCustomVAT() ) !== null ) {
            stopProfile("_assignPriceInternal");
            return $dArticleVat;
        }
        if ( ( $dArticleVat = $this->_getVatForArticleCategory($oArticle) ) !== false ) {
            stopProfile("_assignPriceInternal");
            return $dArticleVat;
        }

        stopProfile("_assignPriceInternal");
        return $this->getConfig()->getConfigParam( 'dDefaultVAT' );
    }

    public function getBasketItemVat(oxArticle $oArticle, $oBasket )
    {
        return $this->getArticleVat( $oArticle );
    }

    public function getArticleUserVat(oxArticle $oArticle)
    {
        if ( ( $oUser = $oArticle->getArticleUser() ) ) {
            return $this->getUserVat( $oUser );
        }
        return false;
    }


    protected function _getVatCountry(oxUser $oUser = null)
    {
        $blUseShippingCountry = $this->getConfig()->getConfigParam("blShippingCountryVat");

        if ($blUseShippingCountry) {
            $aAddresses = $oUser->getUserAddresses($oUser->getId());
            $sSelectedAddress = $oUser->getSelectedAddressId();

            if (isset($aAddresses[$sSelectedAddress])) {
                return $aAddresses[$sSelectedAddress]->oxaddress__oxcountryid->value;
            }
        }

        return $oUser->oxuser__oxcountryid->value;
    }

}