<?php

/*
 * Copyright (c) 2012 The University of Queensland
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * Written by David Gwynne <dlg@uq.edu.au> as part of the IT
 * Infrastructure Group in the Faculty of Engineering, Architecture
 * and Information Technology.
 */


/**
 * Hook to run a cron job.
 *
 * @param array &$croninfo  Output
 */
function riak_hook_cron(&$croninfo) {
	assert('is_array($croninfo)');
	assert('array_key_exists("summary", $croninfo)');
	assert('array_key_exists("tag", $croninfo)');

	if ($croninfo['tag'] !== 'hourly') return;

	try {
		$store = new sspmod_riak_Store_Store();
		$result = $store->bucket->indexSearch('expires', 'int',
		    1, time() - 30);
		foreach ($result as $link) {
			$link->getBinary()->delete();
		}

		SimpleSAML_Logger::info(sprintf("deleted %s riak key%s",
		    sizeof($result), sizeof($result) == 1 ? '' : 's'));
	} catch (Exception $e) {
		$message = 'riak threw exception: ' . $e->getMessage();
		SimpleSAML_Logger::warning($message);
		$croninfo['summary'][] = $message;
	}
}