<?php
/*=====================================================================*\
|| ###################################################################
|| # ViewSVN [#]version[#]
|| # Copyright Š2002-[#]year[#] Iris Studios, Inc.
|| #
|| # This program is free software; you can redistribute it and/or modify
|| # it under the terms of the GNU General Public License as published by
|| # the Free Software Foundation; version [#]gpl[#] of the License.
|| #
|| # 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, write to the Free Software Foundation, Inc.,
|| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|| ###################################################################
\*=====================================================================*/

/**
* Node Controller
*
* This class represents one node in SVN. For each node that you need
* to display information about, create a new instance of this class.
* Generally, however, this one instance should be able to handle
* the needs of the entire class.
*
* @author		Iris Studios, Inc.
* @copyright	Copyright Š2002 - [#]year[#], Iris Studios, Inc.
* @version		$Revision$
* @package		ViewSVN
* 
*/
class Controller
{
	/**
	* Registry class
	* @var	object
	* @access	private
	*/
	var $registry = null;
	
	/**
	* Xquery layer
	* @var	object
	* @access	private
	*/
	var $xquery = null;
	
	/**
	* Xquery method library
	* @var	object
	* @access	private
	*/
	var $library = null;
	
	/**
	* cacheV layer
	* @var	object
	* @access	private
	*/
	var $cachev = null;
	
	/**
	* Full, universal path of the node
	* @var	string
	* @access	public
	*/
	var $fullpath;
	
	/**
	* Repository of the path
	* @var	string
	* @access	public
	*/
	var $repos;
	
	/**
	* The full path to the repository
	* @var	string
	* @access	public
	*/
	var $repospath;
	
	/**
	* Relative path in the repository
	* @var	string
	* @access	public
	*/
	var $path;
	
	/**
	* The current revision number
	* @var	integer
	* @access	public
	*/
	var $revnum;
	
	/**
	* The current revision as a string argument
	* @var	string
	* @access	public
	*/
	var $revstr;
	
	/**
	* The revision number in context for this node. For instance, r40 may be passed, but the file only has revision 38 (and that's what this would be)
	* @var	integer
	* @access	public
	*/
	var $revctx;
	
	// ###################################################################
	/**
	* Constructor
	*
	* @param	string	The path of the node
	*/
	function Controller($nodepath)
	{
		global $viewsvn;
		
		// variables
		$this->fullpath = $nodepath;
		
		$temp = preg_split('#/#', $this->fullpath, -1, PREG_SPLIT_NO_EMPTY);
		
		$this->repos = $temp[0];
		
		unset($temp[0]);
		$this->path = '/' . implode('/', $temp);
		
		// objects
		$this->registry =& $viewsvn;
		
		$this->repospath = $this->registry->repos->fetch_path($this->repos);
		
		$this->revnum = Paths::fetch_rev_num();
		$this->revstr = Paths::fetch_rev_str();
		
		require_once('./includes/shellcmd.php');
		$this->xquery = new Shell($this);
		
		require_once('./includes/svnlib.php');
		$this->library = new SVNLib($this);
		
		require_once('./includes/cachev.php');
		$this->cachev = new cacheV($this);
		
		$this->revctx = $this->cachev->fetch_revision_context($this->revnum);
		$this->revctx = $this->revctx['revision'];
	}
	
	// ###################################################################
	/**
	* Produces a link href that allows for a completely different path
	* than the one in the controller. This is used for navigating upstream.
	*
	* @access	public
	*
	* @param	string	Base path (e.g. browse.php)
	* @param	string	New relative path
	*
	* @return	string	Constructed path
	*/
	function href_struct($base, $path)
	{
		$url = Paths::fetch_arguments($base);
		$path = Paths::sanitize($path);
		
		return $this->registry->path . '/' . $url[0] . '/' . $this->repos . ($path{0} != '/' ? '/' : '') . $path . ($url[1] ? '?' . $url[1] : '');
	}
	
	// ###################################################################
	/**
	* Compounds a path by adding another level. This is used for navigating
	* downstream.
	*
	* @access	public
	*
	* @param	string	Base path (e.g. browse.php)
	* @param	string	Attach path (or none for current)
	* @param	bool	Attach a given revision string, null for none
	*
	* @return	string	Constructed path
	*/
	function href_compound($base, $attach = null, $revstr = null)
	{
		$url = Paths::fetch_arguments($base . ($revstr === null ? ((strpos($base, '?') !== false) ? '&' . $this->revstr : $this->revstr) : $revstr));
		
		if ($attach === null)
		{
			$path = $this->path;
		}
		else
		{
			$attach = Paths::sanitize($attach);
			$path = $this->path . (($attach[0] != '/' AND $this->path[ strlen($this->path) - 1 ] != '/') ? '/' : '') . $attach;
		}
		
		return $this->href_struct($base . ($url[1] ? '?' . $url[1] : ''), $path);
	}
	
	// ###################################################################
	/**
	* Create path breadcrumb
	*
	* @access	public
	*
	* @return	string	Breadcrumb HTML
	*/
	function construct_breadcrumb()
	{
		$html = '/ ';
		
		$temp = preg_split('#/#', $this->fullpath, -1, PREG_SPLIT_NO_EMPTY);
		$count = sizeof($temp) - 1;
		
		$donerepos = false;
		
		foreach ($temp AS $val => $item)
		{
			if ($donerepos != false)
			{
				$itembit .= $item;
				$this->registry->debug($item . " > " . $itembit);
				$itembit .= (($count != $val OR $this->cachev->isdir($itembit)) ? '/' : '');
			}
			
			$donerepos = true;
			$html .= '<a href="' . $this->href_struct('browse.php' . $this->revstr, ($val == 0 ? '' : $itembit)) . '">' . $item . '</a>'. ($count != $val ? ' / ' : '');
		}
		
		return $html;
	}
}

/*=====================================================================*\
|| ###################################################################
|| # $HeadURL$
|| # $Id$
|| ###################################################################
\*=====================================================================*/
?>