<?php

class Template {
	var $Body = '';
	var $BasePath = '';
	var $Filename = '';

	function Template($base_path=null, $filename=null, $silent=0)
	{
		if ($this->SetBasePath($base_path)) {
			if (isset($filename)) {
				$this->Filename = $filename;
				$this->LoadTemplate($silent);
			}
		}
	}
	
	function SetBasePath($base_path=null)
	{
		if (isset($base_path)) {
			$base_path = eregi_replace("/$", '', $base_path); //Cutting possible last slash
			$this->BasePath = $base_path;
			return true;
		}
		return false;
	}
	
	function GetFullPath()
	{
		return $this->BasePath.'/'.$this->Filename.'.tpl';
	}
	
	function LoadTemplate($silent=0)
	{
		$filename = $this->GetFullPath();
		if(file_exists($filename)) {
			if (filesize ($filename)  == 0) {
				trigger_error("Template file size is 0: <b>$filename</b>", ($silent ? E_USER_NOTICE : E_USER_ERROR) );
			}
			
			$handle = fopen ($filename, "r");
			$contents = fread ($handle, filesize ($filename));
			$this->SetBody($contents);
			fclose ($handle);
			return true;
		}
		else {
			trigger_error("File or block not found: <b>$filename</b>", ($silent ? E_USER_NOTICE : E_USER_ERROR) );
			return false;
		}
	}
	
	function SetBody($body)
	{
		$this->Body = $body;
	}
	
	function GetBody()
	{
		return $this->Body;
	}
}

class TemplatesCache extends kBase {
	var $Templates = Array();
	var $BasePath;
	var $FileNames = Array();
	
	var $ModulesCache = Array();
	
	function TemplatesCache()
	{
		parent::kBase();
		$this->BasePath = DOC_ROOT.BASE_PATH.THEMES_PATH;
		
		$conn =& $this->Application->GetADODBConnection();
		$this->ModulesCache = $conn->GetCol('SELECT LOWER(Name) FROM '.TABLE_PREFIX.'Modules');
	}
	
	function LoadTemplate($filename, $title=NULL, $silent=0)
	{
		if (preg_match('#^[\/]{0,1}([^\/]*)\/(.*)#', $filename, $regs)) {
			$module_filename = $regs[2];
			$first_dir = $regs[1];
		}
		else {
			$first_dir = '';
			$module_filename = $filename;
		}
		
		if ( defined('ADMIN') && ADMIN && in_array(strtolower($first_dir), $this->ModulesCache)) {
			$path = MODULES_PATH.'/'.strtolower($first_dir).'/admin_templates';
		}
		else {
			$path = $this->BasePath;
			$module_filename = $first_dir.'/'.$module_filename;
		}
			
		$template =& new Template($path, $module_filename, $silent);
		if (!isset($title)) $title = $filename;
		$this->SetTemplate($title, $template);
	}
	
	function GetRealFilename($filename) {
		if (preg_match('#^[\/]{0,1}([^\/]*)\/(.*)#', $filename, $regs)) {
			$module_filename = $regs[2];
			$first_dir = $regs[1];
		}
		else {
			$first_dir = '';
			$module_filename = $filename;
		}
		
		if ( defined('ADMIN') && ADMIN && in_array(strtolower($first_dir), $this->ModulesCache)) {
			$path = MODULES_PATH.'/'.strtolower($first_dir).'/admin_templates';
		}
		else {
			$path = $this->BasePath;
			$module_filename = $first_dir.'/'.$module_filename;
		}
		return $path.'/'.$module_filename;
	}
	
	function SetTemplate($title, &$template, $filename=null)
	{
		if (!isset($filename)) $filename=$title;
		$this->Templates[$title] = $template;
		$this->FileNames[$title] = $filename;
	}
	
	function &GetTemplate($title, $silent=0)
	{
		if (!isset($this->Templates[$title])) {
			$this->LoadTemplate($title, null, $silent);
		}
		return $this->Templates[$title];
	}
	
	function GetTemplateBody($title, $silent=0)
	{
		$template =& $this->GetTemplate($title, $silent);
		if ( !is_object($template) ) {
			return '';
		}
		return $template->GetBody();
	}
	
	function GetTemplateFileName($title)
	{
		return $this->FileNames[$title];
	}
	
	function SetTemplateBody($title, $body)
	{
		$template =& new Template();
		$template->SetBody($body);
		$this->SetTemplate($title, $template);
	}
	
	function ParseTemplate($template_name)
	{
		$Parser =& new TemplateParser($this->Application);
		return $Parser->Parse( $this->GetTemplateBody($template_name) );
	}
	
	function TemplateExists($filename)
	{
		$template =& new Template($this->BasePath);
		$template->Filename = $filename;
		return $template->LoadTemplate(1) !== false;
	}
}


?>