<?php

class LinkTagProcessor extends kCatDBTagProcessor {


	/**
	 * Returns object used in tag processor
	 *
	 * @access public
	 * @return kDBBase
	 */
	function &getObject($params = Array())
	{
		$object =& parent::getObject($params);

		// Forces item loading (compatibility with old theme)
		if (is_subclass_of($object, 'kDBItem')) {
			// force reload when using from old code
			$id = $this->Application->GetVar($this->Prefix.'_id');
			if ($object->isLoaded() && $object->GetID() != $id) {
				$object->Load($id);
			}
		}

		return $object;
	}

	function getListingInfo($resource_id, $field = null)
	{
		$sql = 'SELECT *
				FROM '.$this->Application->getUnitOption('ls', 'TableName').'
				WHERE ItemResourceId = '.$resource_id;
		$listing_info = $this->Conn->GetRow($sql);
		return isset($field) ? $listing_info[$field] : $listing_info;
	}

	/**
	 * Detects listing enhancement status (enhanced or not)
	 *
	 * @param Array $params
	 * @return int
	 */
	function LinkIsEnhanced($params)
	{
		$object =& $this->getObject();
		/* @var $object kDBItem */

		if ($object->GetDBField('Status') == STATUS_PENDING || $object->GetDBField('Status') == STATUS_PENDING_EDITING) {
			return false;
		}

		$listing_type_id = $this->getListingInfo($object->GetDBField('ResourceId'), 'ListingTypeId');

		$this->Application->SetVar('lst_id', $listing_type_id); // compatibility with old-theme
		return $listing_type_id ? 1 : 0;
	}

	/**
	 * Detects if enhancement is pending approval
	 *
	 * @param Array $params
	 * @return int
	 */
	function EnhancementIsPending($params)
	{
		$object =& $this->getObject();
		/* @var $object kDBItem */

		$status = $this->getListingInfo($object->GetDBField('ResourceId'), 'Status');

		return $status == STATUS_PENDING ? 1 : 0;
	}

	function ListingTypeField($params)
	{
		$object =& $this->getObject();
		/* @var $object kDBItem */

		$lst_id = $this->getListingInfo($object->GetDBField('ResourceId'), 'ListingTypeId');

		$lst_object =& $this->Application->recallObject('lst', null, Array('skip_autoload' => true));
		$lst_object->Load($lst_id);

		return $lst_object->GetField( $this->SelectParam($params, 'name,field') );
	}

	function EnhancementField($params)
	{
		$object =& $this->getObject();
		/* @var $object kDBItem */

		$listing_id = $this->getListingInfo($object->GetDBField('ResourceId'), 'ListingId');

		$listing_object =& $this->Application->recallObject('ls', null, Array('skip_autoload' => true));
		$listing_object->Load($listing_id);

		return $listing_object->GetField( $this->SelectParam($params, 'name,field') );
	}

	function IsRenewalPeriod($params)
	{
		$object =& $this->getObject();
		/* @var $object kDBItem */

		$listing_info = $this->getListingInfo($object->GetDBField('ResourceId'));

		$sql = 'SELECT RenewalReminder
				FROM '.$this->Application->getUnitOption('lst', 'TableName').'
				WHERE ListingTypeId = '.$listing_info['ListingTypeId'];
		$renewal_interval = $this->Conn->GetOne($sql) * 3600 * 24;

		return ($listing_info['ExpiresOn'] - adodb_mktime() < $renewal_interval) ? 1 : 0;
	}

	function FirstListingType($params)
	{
		static $first = true;
		if ($first) {
			$first = false;
			return true;
		}
		else {
			return false;
		}
	}

	function IsReocurringEnhancement($params)
	{
		$params['name'] = 'Recurring';
		return $this->ListingTypeField($params);
	}

	function EnhanceUsingInCommerce($params)
	{
		if (!$this->Application->isModuleEnabled('In-Commerce')) {
			return 0;
		}

		$object =& $this->getObject();
		/* @var $object kDBItem */

		$listtype_id = $this->getListingInfo($object->GetDBField('ResourceId'), 'ListingTypeId');

		$lst_object =& $this->Application->recallObject('lst', null, Array('skip_autoload' => true));
		$lst_object->Load($listtype_id);

		return $lst_object->GetDBField('EnableBuying');
	}

	function ClickLink($params)
	{
		$object =& $this->getObject($params);

		return $this->Application->HREF($params['t'], '', Array('l_id' => $object->GetID(), 'pass'=>'all,l' ));
	}

	function ListRelatedLinks($params)
	{
		return $this->PrintList2($params);
	}

	function LinkLink($params)
	{
		return $this->ItemLink($params, 'link');
	}

	function ListingDescription($params)
	{
		$listing_type =& $this->Application->recallObject('lst');
		/* @var $listing_type kDBItem */

		return $listing_type->GetDBField('Description');
	}

	function ListingTypeDetailsLink($params)
	{
		$listing_type =& $this->Application->recallObject('lst');
		$params['lst_id'] = $listing_type->GetID();

		return $this->Application->ProcessParsedTag('m', 'Link', $params);
	}

	function GroupTitle($params)
	{
		$object =& $this->getObject($params);

		$grouping = $this->Application->RecallVar($this->getPrefixSpecial().'_dupe_fields');
		$grouping = explode('|', substr($grouping, 1, -1));

		$ret = '';
		foreach ($grouping as $group_field) {
			$ret .= $object->GetField($group_field).', ';
		}
		return preg_replace('/(.*), $/', '\\1', $ret);
	}

	/**
	 * Register hit & go to link url
	 *
	 * @param Array $params
	 */
	function FollowLocation($params)
	{
		$object =& $this->getObject();
		/* @var $object kCatDBItem */

		if (!$object->isLoaded()) {
			trigger_error('No Link ID for redirect', E_USER_ERROR);
		}

		$object->RegisterHit();
		$url = $object->GetDBField('Url');

		if (!preg_match('/^(http|ftp|mailto:)(.*)/U', $url)) {
			$url = 'http://'.$url;
		}

		$this->Application->Redirect('external:'.$url);
	}
}

?>