<?php

/**
 * ConfigManagerException to handle exceptions that happen inside
 * the config manager module.
 */
class ConfigManagerException extends Exception {
	public function __construct($message, $code = 0) {
		parent::__construct($message, $code);
	}
}
 

/**
 * ConfigManager loads and manages GOsa session configurations.
 *
 * This class should be integrated via Registry.
 */
class ConfigManager {

	/* Config container */
	private $config;
	private $current;
	private $section;

	public function __construct(){}

	/**
	 * Returns a static instance of $class
	 * Creates a new instance of $class if required.
	 * @param string $class
	 * @return obj $$class
	 */
	public function load($file){
		if (!is_readable($file)){
			throw new ConfigManagerException(sprintf(_("Can't read configuration file '%s'!"), $file));
		}

		/* Capture errors - just the first line is interesting */
		ob_start(); 
		$this->config= parse_ini_file($file, TRUE);
		$ret= preg_replace( array('/^.*\nWarning: /', '/\n.*$/'),
		                    array('', ''),
				    ob_get_contents());
		ob_end_clean(); 

		/* Bail out in case of errors */
		if ($ret != ""){
			throw new ConfigManagerException($ret);
		}

		#echo "Test config and load additional configuration data from LDAP\n";
		#$this->test_config();
		#$this->load_servers();        -> Section servers/...;
		#$this->load_plugin_configs(); -> Section pugins/name/value;

		#print_r($this->config);
	}


	public function save($file){
		throw new ConfigManagerException(_("Save not supported yet!"));
	}


	public function setSection($name){
    $this->section= $name;

		if (isset($this->config[$name])){
			$this->current= &$this->config[$name];
			return TRUE;
    } else {
      $this->current= array();
      return FALSE;
    }
	}


	public function getSection(){
		return $this->section;
	}


	public function getSections(){
	}


	public function getValue($name, $default= ""){
		if (!$this->section){
			throw new ConfigManagerException(_("Can't get value without current section set!"));
		}
		
		if (isset($this->current[$name])){
			return $this->current[$name];
		} elseif ($default) {
      return $default;
    } else {
			return NULL;
		}
	}


	public function setValue($section, $value){
	}

}

// vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
?>