<?php
/*
 * Copyright 2005-2013 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

require_once(dirname(__FILE__) . '/locale.php');

function date_diff_to_text($seconds)
{
	$minutes = div($seconds, 60);
	$seconds = $seconds % 60;
	if ($minutes < 60) {
		return sprintf("%02d:%02d", $minutes, $seconds);
	} else {
		$hours = div($minutes, 60);
		$minutes = $minutes % 60;
		return sprintf("%02d:%02d:%02d", $hours, $minutes, $seconds);
	}
}

function get_month_selection($fromtime, $totime)
{
	$start = getdate($fromtime);
	$month = $start['mon'];
	$year = $start['year'];
	$result = array();
	do {
		$current = mktime(0, 0, 0, $month, 1, $year);
		$result[date("m.y", $current)] = strftime("%B, %Y", $current);
		$month++;
		if ($month > 12) {
			$month = 1;
			$year++;
		}
	} while ($current < $totime);
	return $result;
}

function get_form_date($day, $month)
{
	if (preg_match('/^(\d{2}).(\d{2})$/', $month, $matches)) {
		return mktime(0, 0, 0, $matches[1], $day, $matches[2]);
	}
	return 0;
}

function set_form_date($utime, $prefix)
{
	global $page;
	$page["form${prefix}day"] = date("d", $utime);
	$page["form${prefix}month"] = date("m.y", $utime);
}

function date_to_text($unixtime)
{
	if ($unixtime < 60 * 60 * 24 * 30)
		return getlocal("time.never");

	$then = getdate($unixtime);
	$now = getdate();

	if ($then['yday'] == $now['yday'] && $then['year'] == $now['year']) {
		$date_format = getlocal("time.today.at");
	} else if (($then['yday'] + 1) == $now['yday'] && $then['year'] == $now['year']) {
		$date_format = getlocal("time.yesterday.at");
	} else {
		$date_format = getlocal("time.dateformat");
	}

	return strftime($date_format . " " . getlocal("time.timeformat"), $unixtime);
}

?>