#!/usr/local/bin/php -q
<?php
# mysql cron manager system
# sunboyu@gmail.com
# v1.0
define('SUN_FILE_NAME','bak.sh');
define('SUN_BAK_PATH','./'); #bak path
define('SUN_CFG_PATH','./'); #config file path
define('SUN_LOG_PATH','./'); #log file path
define('SUN_DATABASE_CHARACTER','UTF-8'); #mysql character
define('SUN_SHELL_EXEC',"system");
define('SUN_IS_TAR',0);
#save temp argv in session
session_start();

Main::mains();

class Main
{
    //main()
    public static function mains()
	{
	    KernelInfo::version();
		self::getUserInput();
	}
	//for user's inpyt
	public function getUserInput()
	{
		while(($u_char = KernelBase::cgetchar('shell'))&&($u_char != 'quit'))
		{
		    switch($u_char)
			{
			    case "--help":
				    KernelInfo::help();
				break;
				case "--version":
				    KernelInfo::version();
				break;
				case "--check":
				    KernelInfo::checksystem();
				break;
				case "--mysqldump":
				    Mysql::MysqlGuide();
				break;
				default:
				    print("error input!\n");
				break;
			}
		}
	}
}


class KernelBase
{
    //get input string
	public function cgetchar( $cue = false )
	{
	    if( $cue )
		{
		    print($cue.":");
		}
	    $string = trim(fgets(STDIN));
		return $string;
	}
    //get argvs
    public function cgetargv( $string )
	{
		if(!empty($string))
		{
		    $argvs = explode( " " , $string );
			$reargvs = false;
			for( $i = 0; $i < count($argvs) ; $i++ )
			{
			    if( $argvs[$i][0]=='-' && $argvs[$i][1]=='-' )
				{
				    $reargvs[$argvs[$i]] = true;
					$x++;
				}
				else if( $argvs[$i][0]=='-' && $argvs[$i][1]!='-' )
				{
				    $reargvs[$argvs[$i]] = isset($argvs[($i+1)])&&($argvs[($i+1)][0]!='-')&&($argvs[($i+1)][0]!='') ? $argvs[($i+1)] : '';
					isset($argvs[($i+1)])&&($argvs[($i+1)][0]!='-')&&($argvs[($i+1)][0]!='') ? $i++ : '';
				}
			}
			return $reargvs;
		}
		else
		{
		    return false;
		}
	}
}

class KernelIO
{
    //write file
    public function write_file( $filename , $content )
	{
	    $handle = fopen( $filename );
		fwrite( $handle , $content );
		fclose( $handle );
	}
}
class KernelInfo
{
    //show version
    public function version()
	{
	    print("##################################\n");
		print("#  Mysql Back Cron Manage Shell  #\n");
		print("#  Auth: sunboyu                 #\n");
		print("#  Version: v1.0                 #\n");
		print("##################################\n");
	}
	//show help
	public function help()
	{
	    print(sprintf("%s [--version] [--help] [--check]\n",SUN_FILE_NAME));
		print("       --version Show\n");
		print("       --help    This Help\n");
		print("       --check   This Help\n");
	}
	//check system info
	public function checksystem()
	{
	    print("System:".$_GLOBAL['System']."\n");
	    $check_dir = array( SUN_BAK_PATH , SUN_CFG_PATH , SUN_LOG_PATH );
		foreach($check_dir as $key => $value)
		{
		    if(is_writable($value))
			{
			    print("The dir '".$value."' is writable!\n");
			}
			else
			{
			    print("The dir '".$value."' is unwritable.Please check the power!\n");
				print("The shell is stop!");
				exit();
			}
		}
		$shell_exec = SUN_SHELL_EXEC;
		if($shell_exec('ls'))
		{
		    print("The shell can execute ".SUN_SHELL_EXEC.";\n");
		}
		else
		{
			print("The shell can't execute ".SUN_SHELL_EXEC.";\n");
			print("The shell is stop!");
			exit();
		}
		print("The Shell can work in this system!\n");
	}
	//check is writeable the dir
	public function is_writeable( $dir )
	{
	    return @is_writable( $dir );
	}
}

#Mysql Dump
class Mysql
{
    function MysqlGuide()
	{
	    $mysqlargv = array(
		     '-host' => false,
			 '-username' => false,
			 '-password' => false,
			 '-datebase' => false,
			 '-otherargv' => false
		);
	    $argvs = KernelBase::cgetargv(KernelBase::cgetchar("input argv"));
		foreach($argvs as $key => $value)
		{
		    $mysqlargv[$key] = empty($value) ? '' : $value;
		}
		if($mysqlargv['-host']&&$mysqlargv['-username']&&$mysqlargv['-datebase'])
		{
		    self::Mysqldump( $mysqlargv['-host'] , $mysqlargv['-username'] , $mysqlargv['-password'] , $mysqlargv['-datebase'] , $mysqlargv['-otherargv'] );
		}
		else
		{
		    print("error vars!\n");
		}
	}
    function Mysqldump( $host = false , $username = false , $password = '' , $datebase = false , $otherargv = false )
	{
	    $shell_exec = SUN_SHELL_EXEC;
		if($host&&$username&&$datebase)
		{
			$command = "mysqldump --opt ".$datebase." -u".$datebase." -p".$db_password.( $otherargv ? $otherargv : '' )." > ".SUN_BAK_PATH."db_bak.sql";
			$feedback = $shell_exec( $command );
			print($feedback."\n");
		}
	}
}

?>