<?php
/**
 * Smarty Internal Plugin
 *
 * @package Smarty
 * @subpackage TemplateResources
 */

/**
 * Smarty Resource Data Object
 *
 * Meta Data Container for Config Files
 *
 * @package Smarty
 * @subpackage TemplateResources
 * @author Rodney Rehm
 *
 * @property string $content
 * @property int    $timestamp
 * @property bool   $exists
 */
class Smarty_Config_Source extends Smarty_Template_Source {

	/**
	 * create Config Object container
	 *
	 * @param Smarty_Resource $handler          Resource Handler this source object communicates with
	 * @param Smarty          $smarty           Smarty instance this source object belongs to
	 * @param string          $resource         full config_resource
	 * @param string          $type             type of resource
	 * @param string          $name             resource name
	 * @param string          $unique_resource  unqiue resource name
	 */
	public function __construct(Smarty_Resource $handler, Smarty $smarty, $resource, $type, $name, $unique_resource)
	{
		$this->handler = $handler; // Note: prone to circular references

		// Note: these may be ->config_compiler_class etc in the future
		//$this->config_compiler_class = $handler->config_compiler_class;
		//$this->config_lexer_class = $handler->config_lexer_class;
		//$this->config_parser_class = $handler->config_parser_class;

		$this->smarty = $smarty;
		$this->resource = $resource;
		$this->type = $type;
		$this->name = $name;
		$this->unique_resource = $unique_resource;
	}

	/**
	 * <<magic>> Generic setter.
	 *
	 * @param string $property_name valid: content, timestamp, exists
	 * @param mixed  $value         newly assigned value (not check for correct type)
	 * @throws SmartyException when the given property name is not valid
	 */
	public function __set($property_name, $value)
	{
		switch ($property_name) {
			case 'content':
			case 'timestamp':
			case 'exists':
				$this->$property_name = $value;
				break;

			default:
				throw new SmartyException("invalid config property '$property_name'.");
		}
	}

	/**
	 * <<magic>> Generic getter.
	 *
	 * @param string $property_name valid: content, timestamp, exists
	 * @throws SmartyException when the given property name is not valid
	 */
	public function __get($property_name)
	{
		switch ($property_name) {
			case 'timestamp':
			case 'exists':
				$this->handler->populateTimestamp($this);
				return $this->$property_name;

			case 'content':
				return $this->content = $this->handler->getContent($this);

			default:
				throw new SmartyException("config property '$property_name' does not exist.");
		}
	}

}

?>