<?php
/**
 * Invision Power Board
 * Action controller for DB page
 */

class action_db
{
	var $install;
	
	function action_db( & $install )
	{
		$this->install =& $install;
	}
	
	function run()
	{
		if( isset($this->install->ipsclass->input['db_pre']) )
		{
			$this->install->ipsclass->input['db_pre'] = strtolower($this->install->ipsclass->input['db_pre']);
		}

		/* Check input? */
		if ( $this->install->ipsclass->input['sub'] == 'check' )
		{
			/* Make sure the fields were filled out */			
			if ( ! $this->install->ipsclass->input['db_host'] || ! $this->install->ipsclass->input['db_name'] || ! $this->install->ipsclass->input['db_user'] )
			{
				$errors[] = 'You must fill out the form completely';
			}
			
			//-----------------------------------------
			// Error check
			//-----------------------------------------
			
			if ( is_array( $errors ) )
			{
				$this->install->template->warning( $errors );
				return;
			}
			
			//-----------------------------------------
			// Load DB driver..
			//-----------------------------------------
			
			require_once( INS_KERNEL_PATH . 'class_db_' . $this->install->saved_data['sql_driver'] . '.php' );
			
			$classname = "db_driver_".$this->install->saved_data['sql_driver'];

			$DB = new $classname;

			$DB->obj['sql_database']   = $this->install->ipsclass->input['db_name'];
			$DB->obj['sql_user']	   = $this->install->ipsclass->input['db_user'];
			$DB->obj['sql_pass']	   = $_REQUEST['db_pass'];
			$DB->obj['sql_host']	   = $this->install->ipsclass->input['db_host'];
			$DB->obj['sql_tbl_prefix'] = $this->install->ipsclass->input['db_pre'];
			
			//--------------------------------------------------
			// Any "extra" configs required for this driver?
			//--------------------------------------------------

			if ( file_exists( INS_ROOT_PATH.'sql/'.$this->install->saved_data['sql_driver'].'_install.php' ) )
			{
				require_once( INS_ROOT_PATH.'sql/'.$this->install->saved_data['sql_driver'].'_install.php' );

				$extra_install           =  new install_extra();
				$extra_install->ipsclass =& $this->install->ipsclass;

				$extra_install->install_form_process();

				if ( count( $extra_install->errors ) )
				{
					$this->install->template->warning( implode( "<br />", $extra_install->errors ) );
				}
				
				if ( is_array( $extra_install->info_extra ) and count( $extra_install->info_extra ) )
				{ 
					foreach( $extra_install->info_extra as $k => $v )
					{
						$this->install->saved_data[ '__sql__' . $k ] = $v;
					}
				}
				
				if ( is_array( $DB->connect_vars ) and count( $DB->connect_vars ) )
				{
					foreach( $DB->connect_vars as $k => $v )
					{
						$DB->connect_vars[ $k ] = $extra_install->info_extra[ $k ];
					}
				}
			}
			
			//-----------------------------------------
			// Error check
			//-----------------------------------------
			
			if ( is_array( $errors ) )
			{
				$this->install->template->warning( $errors );
				return;
			}
			
			//--------------------------------
			// Make CONSTANT
			//--------------------------------
			
			define( 'SQL_DRIVER'              , $this->install->saved_data['sql_driver'] );
			define( 'IPS_MAIN_DB_CLASS_LOADED', TRUE );

			//--------------------------------
			// Try a DB connection
			//--------------------------------
			
			$DB->return_die = 1;

			if ( ! $DB->connect() )
			{
				$errors[] = $DB->error;
				
				if( !count($errors) )
				{
					$errors[] = "There was a problem connecting to your SQL server.  Please doublecheck your login information and try again.";
				}
			}
			
			//-----------------------------------------
			// Error check
			//-----------------------------------------
			
			if ( is_array( $errors ) )
			{
				$this->install->template->warning( $errors );
				return;
			}
			
			/* Save Form Data */
			$this->install->saved_data['db_host']       = $this->install->ipsclass->input['db_host'];
			$this->install->saved_data['db_name'] 	    = $this->install->ipsclass->input['db_name'];
			$this->install->saved_data['db_user'] 		= $this->install->ipsclass->input['db_user'];
			$this->install->saved_data['db_pass'] 		= $_REQUEST['db_pass'];
			$this->install->saved_data['db_pre']  		= $this->install->ipsclass->input['db_pre'];
			$this->install->saved_data['_drop_tables']  = $this->install->ipsclass->input['_drop_tables'];
			
			//-----------------------------------------
			// Tables exist?
			//-----------------------------------------
			
			if ( ! $this->install->saved_data['_drop_tables'] AND $DB->field_exists( 'id', 'members' ) )
			{
				/* Output */
				$this->install->saved_data['_show_overwrite'] = 1;
				$this->install->template->append( $this->install->template->db_page( $drivers ) );
				$this->install->template->next_action = '?p=db&sub=check';
				
				//-----------------------------------------
				// Show overwrite?
				//-----------------------------------------

				$html = "<tr>
							<td colspan='2'>
								<div class='warning'>
									<p><strong style='color:red'>You are attempting to install in a database that already has tables from another installation</strong>
									<br />If you wish to install in this database, all current tables will be dropped which means any existing data will be deleted.
									You can either continue, choosing to delete all current data or you can choose another SQL table prefix.</p>
									<input type='checkbox' value='1' name='_drop_tables' /><strong>DELETE ANY CURRENT TABLES BEFORE INSTALLING</strong>
								</div>
							</td>
						</tr>";

				$this->install->template->page_content = str_replace( '<!--{TOP.SQL}-->', $html, $this->install->template->page_content );
				
				//--------------------------------------------------
				// Any "extra" configs required for this driver?
				//--------------------------------------------------

				if ( file_exists( INS_ROOT_PATH.'sql/'.$this->install->saved_data['sql_driver'].'_install.php' ) )
				{
					require_once( INS_ROOT_PATH.'sql/'.$this->install->saved_data['sql_driver'].'_install.php' );
					$extra_install = new install_extra();

					$this->install->template->page_content = str_replace( '<!--{EXTRA.SQL}-->', $extra_install->install_form_extra(), $this->install->template->page_content );
				}
						
				return;
			}
			
			/* Next Action */
			$this->install->template->page_current = 'admin';
			$this->install->ipsclass->input['sub'] = '';
			require_once( INS_ROOT_PATH . 'core/actions/admin.php' );	
			$action = new action_admin( $this->install );
			$action->run();
			return;
		}
		
		//--------------------------------------------------
		// DO WE HAVE A DB DRIVER SET?
		//--------------------------------------------------

		$this->install->saved_data['sql_driver'] = ( $this->install->saved_data['sql_driver'] == "" ) ? $_REQUEST['sql_driver'] : $this->install->saved_data['sql_driver'];

		if ( ! $this->install->saved_data['sql_driver'] )
		{
			//----------------------------------------------
			// Test to see how many DB driver's we've got..
			//----------------------------------------------

			$dh = opendir( INS_KERNEL_PATH );

			while ( false !== ( $file = @readdir( $dh ) ) )
			{
				if ( preg_match( "/^class_db_([a-zA-Z0-9]*)\.php/i", $file, $driver ) )
				{
					$drivers[] = $driver[1];
				}
			}

	 		@closedir( $dh );

	 		//----------------------------------------------
	 		// Got more than one?
	 		//----------------------------------------------

	 		if ( count($drivers) > 1 )
	 		{
	 			//------------------------------------------
	 			// Show choice screen first...
	 			//------------------------------------------
				
				/* Output */
				$this->install->template->append( $this->install->template->db_check_page( $drivers ) );		
				$this->install->template->next_action = '?p=db';
				return;
	 		}
	 		else
	 		{
	 			//------------------------------------------
	 			// Use only driver installed
	 			//------------------------------------------

	 			$this->install->saved_data['sql_driver'] = $drivers[0];
	 		}
		}
		
		/* Output */
		$this->install->template->append( $this->install->template->db_page() );		
		$this->install->template->next_action = '?p=db&sub=check';
		
		//--------------------------------------------------
		// Any "extra" configs required for this driver?
		//--------------------------------------------------

		if ( file_exists( INS_ROOT_PATH.'sql/'.$this->install->saved_data['sql_driver'].'_install.php' ) )
		{
			require_once( INS_ROOT_PATH.'sql/'.$this->install->saved_data['sql_driver'].'_install.php' );
			$extra_install = new install_extra();

			$this->install->template->page_content = str_replace( '<!--{EXTRA.SQL}-->', $extra_install->install_form_extra(), $this->install->template->page_content );
		}
	}
	
}

?>