<?php
    $ini = parse_ini_file("conf.ini", true);

    if ($ini['db']['log']=="1"){
       $arrival_time=microtime(true);
       $filename=basename(__FILE__);
       $filename="log_".$filename.".txt";
       $chunck=strval($arrival_time)." ".$_SERVER['REQUEST_URI']."\r\n";
       file_put_contents($filename,$chunck,FILE_APPEND);
    }
	
    $idmin=$_REQUEST['idmin'];
    $postfix=$_REQUEST['postfix'];
    $table="chat".$postfix;
	
	$full=0;
	
    if ($full==1){
		mysql_connect($ini['db']['host'],$ini['db']['user'],$ini['db']['pass']);
		mysql_select_db($ini['db']['db']);
		
		$sql=mysql_query('SET CHARACTER SET utf8');
		$sql=mysql_query("SELECT * FROM (SELECT ID,user_code as user_id,nick,message,moderator,weather,day,TIMESTAMPDIFF(MINUTE,date, NOW()) AS difference FROM $table where ID>$idmin order by ID desc limit 200) AS dummy ORDER BY ID");

		if (mysql_num_rows($sql))
		{
			while($e=mysql_fetch_assoc($sql))
				$output[]=$e;
			print(json_encode($output));
		}
		else{
			print("no_new");
		}
		mysql_close();
    }
    else{
		$filename="chat_table".$postfix.".txt";
        if (file_exists($filename)){
            $delta_time=time()-filemtime($filename);
        }
        else{
            $delta_time=1000;
        }
        if ($delta_time>5)
        {
            mysql_connect($ini['db']['host'],$ini['db']['user'],$ini['db']['pass']);
            mysql_select_db($ini['db']['db']);

			$sql=mysql_query('SET CHARACTER SET utf8');
			$sql=mysql_query("SELECT * FROM (SELECT ID,user_code as user_id,nick,message,moderator,weather,day,TIMESTAMPDIFF(MINUTE,date, NOW()) AS difference FROM $table order by ID desc limit 200) AS dummy ORDER BY ID");
			if (mysql_num_rows($sql)){
			   while($e=mysql_fetch_assoc($sql))
					$output_file[]=$e;
			   $json_file = json_encode($output_file);
			   file_put_contents($filename,$json_file);
			}
			mysql_close();
        }
        $data = file_get_contents($filename);
        print($data);
    }
?>