#!/usr/bin/php -f
<?
date_default_timezone_set("UTC");

$open_date="";
$last_date="";
$last_hour="";
$last_time=0;
$last_rx=-1;
$last_tx=-1;
while (1) {
	list ($time, $hour, $y, $m, $d) = explode(" ",gmdate("U G Y m d"));
	$date = gmmktime(0,0,0,$m,$d,$y,$time);
	if ($time == $last_time) { usleep(50000); continue; }
	$rx=-1;
	$tx=-1;
	$stats=file("/proc/net/dev");
	foreach ($stats as $line) {
		if (preg_match('/^ *(ppp0): +([0-9]+) +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+'
				.' +([0-9]+) +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+$/', $line, $matches)) {
			$if=$matches[1];
			$rx=$matches[2];
			$tx=$matches[3];
		}
	}
	if ($rx >= 0 && $tx >= 0 && $last_rx >= 0 && $last_tx >= 0) {
		if ($last_date != $open_date) {
			if ($open_date!="") {
				fclose($fd);
				echo "C $open_date\n";
			}
			if (file_exists("db/".$if."/".$last_date)) {
				$data=explode(" ",str_replace("\n","",file_get_contents("db/".$if."/".$last_date)));
			} else {
				$data=Array(
					0,0,0,0,0,0,
					0,0,0,0,0,0,
					0,0,0,0,0,0,
					0,0,0,0,0,0,
					0,0,0,0,0,0,
					0,0,0,0,0,0,
					0,0,0,0,0,0,
					0,0,0,0,0,0);
			}
			$fd=fopen("db/".$if."/".$last_date,"w");
			$open_date = $last_date;
			echo "O $open_date\n";
		}
		if (($rx - $last_rx) > 0 && ($tx - $last_tx) > 0) {
			$data[$last_hour]+=($rx - $last_rx);
			$data[24+$last_hour]+=($tx - $last_tx);
		}
		fseek($fd,0);
		fputs($fd,implode(" ",$data)."\n");
		echo "S ".$hour." ".($rx - $last_rx)." ".($tx - $last_tx)."\n";
	}
	$last_time=$time;
	$last_date=$date;
	$last_hour=$hour;
	if ($rx == -1) { $rx=0; }
	if ($tx == -1) { $tx=0; }
	$last_rx=$rx;
	$last_tx=$tx;
}
?>