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/* // ~~~ DETECT BROWSER LANGUAGE ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* ~~~ CONVERT MYSQL DATE ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

function convert_mysql_date($date)
{
	$date = explode("-", $date);
	return $date[2].".".$date[1].".".$date[0];
}

/* // ~~~ CONVERT MYSQL DATE ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* ~~~ GET MONTH NAME ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

function get_monthname($month_number, $format)
{	 
  	global $UC_lang;
  	
  	if ($format == 1)
  	{
  		switch ($month_number)
  		{	
  			case ''	  : $month_string = "";
  			case '1'  : $month_string = $UC_lang['month_jan']; break;
  			case '2'  : $month_string = $UC_lang['month_feb']; break;
  			case '3'  : $month_string = $UC_lang['month_mar']; break;
  			case '4'  : $month_string = $UC_lang['month_apr']; break;
  			case '5'  : $month_string = $UC_lang['month_may']; break;
  			case '6'  : $month_string = $UC_lang['month_jun']; break;
  			case '7'  : $month_string = $UC_lang['month_jul']; break;
  			case '8'  : $month_string = $UC_lang['month_aug']; break;
  			case '9'  : $month_string = $UC_lang['month_sep']; break;
  			case '10' : $month_string = $UC_lang['month_oct']; break;
  			case '11' : $month_string = $UC_lang['month_nov']; break;
  			case '12' : $month_string = $UC_lang['month_dec']; break;
  			default   : $month_string = ""; break;
  		}
  	}
  	else if ($format == 2)
  	{
  		switch ($month_number)
  		{
  			case ''	  : $month_string = "";
  			case '1'  : $month_string = $UC_lang['month_short_jan']; break;
  			case '2'  : $month_string = $UC_lang['month_short_feb']; break;
  			case '3'  : $month_string = $UC_lang['month_short_mar']; break;
  			case '4'  : $month_string = $UC_lang['month_short_apr']; break;
  			case '5'  : $month_string = $UC_lang['month_short_may']; break;
  			case '6'  : $month_string = $UC_lang['month_short_jun']; break;
  			case '7'  : $month_string = $UC_lang['month_short_jul']; break;
  			case '8'  : $month_string = $UC_lang['month_short_aug']; break;
  			case '9'  : $month_string = $UC_lang['month_short_sep']; break;
  			case '10' : $month_string = $UC_lang['month_short_oct']; break;
  			case '11' : $month_string = $UC_lang['month_short_nov']; break;
  			case '12' : $month_string = $UC_lang['month_short_dec']; break;
  			default   : $month_string = ""; break;
  		}	
  	}
  	
  	return $month_string;
  	
}

/* // ~~~ GET MONTH NAME ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* ~~~ GET UNIX TIME STAMP OF STRING ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

function str_to_time($str)
{	 
	// THIS FUNCTION IS NEEDED BECAUSE PHP FUNCTION strtotime() CONTAINS BUGS
	
	$week_sec = 604800;
	
	if ($str == 'last week')
		return time() - $week_sec;
	else if ($str == 'next week')
		return time() + $week_sec;
	else
		return time();
}

/* // ~~~ GET UNIX TIME STAMP OF STRING ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* // ~~~ GET MONTH NAME ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* ~~~ FORMAT TIME ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

function format_time($time, $format = 1)
{
	if ($format == 1)
	{
		return date("j. ", $time).get_monthname(date("n", $time),2)
			   .date(" Y H:i", $time);
	}
}

/* // ~~~ FORMAT TIME ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */

/* ~~~ LEADING ZERO FORMAT ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

function leading_zero($number, $length)
{
	while (strlen($number) < $length)
		$number = "0".$number;
	return $number;
}

/* ----- time zone ----- */

if (PHP5)
{
	/* 
	 * supported time zones can be found here:
	 * http://www.php.net/manual/de/timezones.php
	 */
	//if (function_exists('date_default_timezone_set'))
	//	date_default_timezone_set('Europe/Berlin');  
}

/* // ----- time zone ----- */

/* ----- initialize variables ----- */

$UC_global = array();

$breadcrumb_elements = array();

/* Create random number and keep this while session
 * ist refreshed. This ensures every user has a different
 * suggestions sorting but page navigation makes sense. */
 
mt_srand((double)microtime()*1000000);
if (!isset($_SESSION['suggestions_rand_number']))
	$_SESSION['suggestions_rand_number'] = mt_rand();
$suggestions_rand_number = $_SESSION['suggestions_rand_number'];
define('SUGGESTIONS_RAND_NUMBER', $suggestions_rand_number);

define('IP', $_SERVER['REMOTE_ADDR']);
define('USER_AGENT', $_SERVER['HTTP_USER_AGENT']);
define('MAX_UPLOAD_SIZE', ini_get('upload_max_filesize'));
define('MAX_EXECUTION_TIME', ini_get("max_execution_time"));
$mem_limit = ini_get("memory_limit");
$mem_limit = substr($mem_limit, 0, strlen($mem_limit) - 1);
$mem_limit *= 1024 * 1024;
define('MEMORY_LIMIT', $mem_limit); // memory limit (Bytes)

//get date and time vars

define('CUR_WEEK', date("W"));
if (CUR_WEEK == '01' && date("Y") != date("Y", str_to_time("next week")))
{
	define('CUR_MONTH', date("m", str_to_time("next week")));
	define('CUR_YEAR', date("Y", str_to_time("next week")));
}
else
{	
	define('CUR_MONTH', date("m"));
	define('CUR_YEAR', date("Y"));
}

define('LAST_WEEK', date("W", str_to_time("last week")));
define('LAST_WEEK_MONTH', date("m", str_to_time("last week")));
define('LAST_WEEK_YEAR', date("Y", str_to_time("last week")));
define('NEXT_WEEK', date("W", str_to_time("next week")));
define('NEXT_WEEK_MONTH', date("m", str_to_time("next week")));
define('NEXT_WEEK_YEAR', date("Y", str_to_time("next week")));

$week_numeric = array('mon' => 0, 'tue' => 1, 'wed' => 2, 'thu' => 3, 'fri' => 4, 'sat' => 5, 'sun' => 6);
$php_weekday = array(0 => 6, 1 => 0, 2 => 1, 3 => 2, 4 => 3, 5 => 4, 6 => 5);
$UC_global['week_numeric'] = $week_numeric;
$UC_global['php_weekday'] = $php_weekday;
$UC_global['time_start'] = $time_start;

//get config vars
$result = mysql_query(
"SELECT config_name, config_value, config_text
FROM " . $UC_sql_tables['config'] . "
") or errorhandler(mysql_error(),__FILE__,__LINE__);

while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
	$config_name = "config_".$row['config_name'];
	if (!empty($row['config_text']))
		define(strtoupper($config_name), $row['config_text']);
	else
		define(strtoupper($config_name), $row['config_value']);
}

//get other vars

//check if round is finished for this week
$result = mysql_query(
"SELECT id
FROM " . $UC_sql_tables['charts'] . "
WHERE week = '" . CUR_WEEK ."' AND ISNULL(month)
AND year = '" . CUR_YEAR . "'
LIMIT 1") or errorhandler(mysql_error(),__FILE__,__LINE__);