<?php
class Message
{
	
	public $error;
	public $language;
	
	public function __construct($lang='english')
	{
		$this->error = '';
		$this->language = $lang;
	}

	/**
	* Retrieves a message given the language setting and the ID
	*
	* @access	public
	* @param	$id the identification value of the message
	* @author	Brian Cook <hide@address.com>
	* @return	$message_node->nodeValue the message retrieved from the langauge file at the given IDs
	*/	
	public function get_message($id)
	{
		//loads the message file into the DOM
		$dom = new DOMDocument;
		$dom->preserveWhiteSpace = false;
		
		$dom->load( LANGUAGES . '/' . $this->language . '.xml' );
		
		//set up the xpath, which actually locates the error nessage
		$xpath = new DOMXPath($dom);
		
		$message_node = $xpath->query('//message[@id="'.$id.'"]');
	
		if(count($message_node) > 0)
		{
			return $message_node->item(0)->nodeValue;
		}
		else
		{
			return $this->get_message('cannot_find_message');
		}
	}
	
	
	/**
	* Retrieves a label given the language setting and the ID
	*
	* @access	public
	* @param	$id the identification value of the label
	* @param	$file_location
	* @author	Brian Cook <hide@address.com>
	* @return	$label_node->nodeValue the label retrieved from the langauge file at the given IDs
	*/	
	public function get_label($id, $file_location='core')
	{
		//loads the message file into the DOM
		$dom = new DOMDocument;
		$dom->preserveWhiteSpace = false;
		
		if($file_location == 'core')
		{
			$dom->load( LANGUAGES . '/' . $this->language . '.xml' );
		}
		else
		{
			$dom->load( LANGUAGES . '/' . $file_location . '/' . $this->language . '.xml' );
		}
		//set up the xpath, which actually locates the error nessage
		$xpath = new DOMXPath($dom);
		
		$label_node = $xpath->query('//label[@id="'.$id.'"]');
	
		if(count($label_node) > 0)
		{
			return $label_node->item(0)->nodeValue;
		}
		else
		{
			return $this->get_label('cannot_find_label');
		}
	}
	
	public function get_messages($file_location)
	{
	
		$dom = new DOMDocument;
		$dom->preserveWhiteSpace = false;
		
		if($file_location == 'core')
		{
			$dom->load( LANGUAGES . '/' . $this->language . '.xml' );
		}
		else
		{
			$dom->load( MODULES . '/' . $file_location . '/' . $this->language . '.xml' );
		} 

		$xpath = new DOMXpath($dom);
		
		return $xpath->query('//message');
	}
	
	public function get_labels($file_location)
	{
	
		$dom = new DOMDocument;
		$dom->preserveWhiteSpace = false;
		
		if($file_location == 'core')
		{
			$dom->load( LANGUAGES . '/' . $this->language . '.xml' );
		}
		else
		{
			$dom->load( MODULES . '/' . $file_location . '/' . $this->language . '.xml' );
		} 

		$xpath = new DOMXpath($dom);
		
		return $xpath->query('//labels');
	}
}
?>