<?php

class db {
	var $database;
	var $r;
	var $host;
	var $user;
	var $pass;
	var $dbname;
	var $lastRow;
	
	function connect( $host, $user, $pass, $dbname, $db_create = false ) {
		$this->host = $host;
		$this->user = $user;
		$this->pass = $pass;
		$this->dbname = $dbname;
		$this->database = mysqli_connect($host,$user,$pass,$dbname);
 		if ( !$this->database ) {
 		 	 die('Mysql server fail');
 		}

	}
	
	function new_db() {
		$db = clone $this;
		$db->connect($this->host, $this->user, $this->pass, $this->dbname);
		return $db;
	}
	
	
	function q( $sql ) {
		global $statistica;
		$statistica['q_count']++;
		$statistica['sqls'][] = $sql;
		$starttime = microtime( true );
        
        	if (!($result = mysqli_query($this->database, $sql) ) ) {
          

			if (php_sapi_name()==='cli') {
				echo '/* MYSQL_ERROR */ ' . PHP_EOL;
				echo mysqli_error($this->database);
				echo PHP_EOL;
				die();
			}

			if ( _DEBUG != true  ) {
		            header("HTTP/1.1 503 Service Unavailable", true, 503);
		 	   	    header("Retry-After: 3600");
		            $data = file_get_contents(_SHOP_DIR . 'blocker/index.html');
		            echo $data;
		            die();
	            	}


            //die('error');
            echo "<xmp>";
            debug_print_backtrace();
            echo "</xmp>";
            
            die(mysqli_error($this->database) . "<br>" . $sql );
           
        } else {
			$endtime = microtime( true );
		    $statistica['query_time'] += ($endtime - $starttime);
		    $statistica['sql_time'][]  = ($endtime - $starttime);
			$this->r = $result;
			return clone $this;
            
        }
	}

	function r() {
		$row = mysqli_fetch_assoc($this->r);
 		if ( $row  ) {
     		$this->lastRow = $row;
    		return true;
        } else {
            return false;   
        }
	}

	public function getRow()
	{
		return $this->lastRow;
	}


	public function fetchAll() {
		return mysqli_fetch_all($this->r, MYSQLI_ASSOC);
	}


	function nr() {
		return $this->r();	
	}

	function f( $key ) {
		return $this->lastRow[$key];
	}
	
	function insert_id() {
		return mysqli_insert_id($this->database);
	}
	
	function affected_rows() {
		return mysqli_affected_rows($this->database);
	}

	function close() {
		mysqli_close( $this->database );
	}


}

$core_db = new db();

function db_escape_string($str = "") {
       global $core_db;
       return mysqli_real_escape_string($core_db->database, $str);
}

function db_real_escape_string($str = "") {
       return db_escape_string($str);
}

function mysql_real_escape_string($str = "") {
       return db_escape_string($str);
}

?>