<?php
/**
* Database Step Controller. 
*
* KnowledgeTree Community Edition
* Document Management Made Simple
* Copyright(C) 2008,2009 KnowledgeTree Inc.
* Portions copyright The Jam Warehouse Software(Pty) Limited
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 3 as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
* You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco,
* California 94120-7775, or email info@knowledgetree.com.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU General Public License version 3.
*
* In accordance with Section 7(b) of the GNU General Public License version 3,
* these Appropriate Legal Notices must retain the display of the "Powered by
* KnowledgeTree" logo and retain the original copyright notice. If the display of the
* logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
* must display the words "Powered by KnowledgeTree" and retain the original
* copyright notice.
*
* @copyright 2008-2009, KnowledgeTree Inc.
* @license GNU General Public License version 3
* @author KnowledgeTree Team
* @package Migrater
* @version Version 0.1
*/

class migrateDatabase extends Step 
{
	/**
	* Reference to Database object
	*
	* @author KnowledgeTree Team
	* @access public
	* @var object
	*/	
    public $_dbhandler = null;
    	
	/**
	* Reference to Database object
	*
	* @author KnowledgeTree Team
	* @access public
	* @var object
	*/	
    public $_util = null;
    
	/**
	* Database type
	*
	* @author KnowledgeTree Team
	* @access private
	* @var array
	*/	
    private $dtype = '';
    
	/**
	* Database types
	*
	* @author KnowledgeTree Team
	* @access private
	* @var array
	*/	
    private $dtypes = array();
    
	/**
	* Database host
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dhost = '';
    
	/**
	* Database port
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dport = '';
    
	/**
	* Database name
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dname = '';
    
	/**
	* Database root username
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $duname = '';
    
	/**
	* Database root password
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dpassword = '';
    
	/**
	* Database dms username
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dmsname = '';
    
	/**
	* Database dms password
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dmspassword = '';

	/**
	* Default dms user username
	*
	* @author KnowledgeTree Team
	* @access private
	* @var boolean
	*/
    private $dmsusername = '';
    
	/**
	* Default dms user password
	*
	* @author KnowledgeTree Team
	* @access private
	* @var boolean
	*/
	private $dmsuserpassword = '';
	
	/**
	* Location of database binaries.
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $mysqlDir; // TODO:multiple databases
    
	/**
	* Name of database binary.
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $dbbinary = ''; // TODO:multiple databases
    
	/**
	* Database table prefix
	*
	* @author KnowledgeTree Team
	* @access private
	* @var string
	*/
    private $tprefix = '';
    
	/**
	* Flag to drop database
	*
	* @author KnowledgeTree Team
	* @access private
	* @var boolean
	*/
    private $ddrop = false;
    
	/**
	* List of errors encountered
	*
	* @author KnowledgeTree Team
	* @access public
	* @var array
	*/
    public $error = array();
    
	/**
	* List of errors used in template
	*
	* @author KnowledgeTree Team
	* @access public
	* @var array
	*/
    public $templateErrors = array('dmspassword', 'dmsuserpassword', 'con', 'dname', 'dtype', 'duname', 'dpassword');
    
	/**
	* Flag to store class information in session
	*
	* @author KnowledgeTree Team
	* @access public
	* @var array
	*/
    public $storeInSession = true;
    
	/**
	* Flag if step needs to be migrated
	*
	* @author KnowledgeTree Team
	* @access public
	* @var array
	*/
    protected $runMigrate = true;
    
	/**
	* Flag if step needs to run silently
	*
	* @author KnowledgeTree Team
	* @access public
	* @var array
	*/
    protected $silent = true;
    
	/**
	* Constructs database object
	*
	* @author KnowledgeTree Team
	* @access public
	* @param none
 	*/
    public function __construct() {
    	$this->temp_variables = array("step_name"=>"database", "silent"=>$this->silent);
    	$this->_dbhandler = new dbUtil();
    	$this->_util = new MigrateUtil();
    	if(WINDOWS_OS)
			$this->mysqlDir = MYSQL_BIN;
    }

	/**
	* Main control of database setup
	*
	* @author KnowledgeTree Team
	* @param none
	* @access public
	* @return string
	*/
    public function doStep() {
    	$this->initErrors();
    	$this->setDetails(); // Set any posted variables
    	if(!$this->inStep("database")) {
    		return 'landing';
    	}
		if($this->next()) {
			return 'next';
		} else if($this->previous()) {
			return 'previous';
		}
        
        return 'landing';
    }

	/**
	* Store options
	*
	* @author KnowledgeTree Team
	* @params object SimpleXmlObject
	* @access private
	* @return void
	*/
   private function setDetails() {
        $this->temp_variables['dhost'] = $this->getPostSafe('dhost');
        $this->temp_variables['dport'] = $this->getPostSafe('dport');
        $this->temp_variables['duname'] = $this->getPostSafe('duname');
        $this->temp_variables['dpassword'] = $this->getPostSafe('dpassword');
		$this->temp_variables['dbbinary'] = $this->getPostSafe('dbbinary');
    }
    
	/**
	* Safer way to return post data
	*
	* @author KnowledgeTree Team
	* @params SimpleXmlObject $simplexml
	* @access public
	* @return void
	*/
    public function getPostSafe($key) {
    	return isset($_POST[$key]) ? $_POST[$key] : "";
    }
    
	/**
	* Stores varibles used by template
	*
	* @author KnowledgeTree Team
	* @params none
	* @access public
	* @return array
	*/
    public function getStepVars() {
        return $this->temp_variables;
    }

	/**
	* Returns database errors
	*
	* @author KnowledgeTree Team
	* @access public
	* @params none
	* @return array
	*/
    public function getErrors() {

        return $this->error;
    }

	/**
	* Initialize errors to false
	*
	* @author KnowledgeTree Team
	* @param none
	* @access private
	* @return boolean
	*/
    private function initErrors() {
    	foreach ($this->templateErrors as $e) {
    		$this->error[$e] = false;
    	}
    }
}
?>