<?php
/**
 * osBilling - Open Billing Software
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Originally authored by Deon George
 *
 * @author Deon George <deonATleenooksDOTnet>
 * @copyright 2009 Deon George
 * @link http://osb.leenooks.net
 * @license http://www.gnu.org/licenses/
 * @package AgileBill
 * @subpackage Modules:Payment
 */

/**
 * The main AgileBill Account Fee Class
 *
 * @package AgileBill
 * @subpackage Modules:AccountFee
 */
class account_fee extends OSB_module {
	/**
	 * Calculate the account fee for an account
	 *
	 * @param $account_id The account ID to calculate
	 * @param $period Invoice period being calculated
	 * @uses account
	 */
	public function sAccountFee($account_id,$period) {
		static $CACHE = array();

		if (! isset($CACHE[$account_id][$period])) {
			$db = &DB();

			include_once(PATH_MODULES.'account/account.inc.php');
			$ao = new account;

			# Load the account fees
			$rs = $db->Execute(sqlSelect('account_fee','*',array('where'=>array('active=1'))));

			if ($rs && $rs->RecordCount()) {
				while (! $rs->EOF) {
					$gf = unserialize($rs->fields['groups_fee']);
					if (isset($gf[$period]) && $gf[$period]['show'])
						foreach ($ao->sAccountGroups($account_id) as $gid)
							if (isset($gf[$period]['group'][$gid])
								&& (! isset($CACHE[$account_id][$period]) || $CACHE[$account_id][$period] > $gf[$period]['group'][$gid]['fee']))
								$CACHE[$account_id][$period] = $gf[$period]['group'][$gid]['fee'];

					$rs->MoveNext();
				}
			}
		}

		return $CACHE[$account_id][$period];
	}
}
?>