<?php
/**
 * @version		1.0.0
 * @category	Anahita Social Engine™
 * @copyright	Copyright (C) 2008 - 2010 rmdStudio Inc. and Peerglobe Technology Inc. All rights reserved.
 * @license		GNU GPLv2 <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
 * @link     	http://www.anahitapolis.com
 */

class ComSocialengineControllerSocialgraph extends ComSocialengineControllerBase
{
	public function __construct($options=array())
	{
		parent::__construct($options);
		
		$this->layout	= KRequest::get('get.layout','cmd');		
		$this->person   = $this->getOwner('pid');
		
		$this->registerAuthentication(array('add','confirmAdd','remove','confirmRemove'));
		
		$this->registerFunctionBefore(array('add','confirmAdd'), array('validateAdd'));
	}
	
	public function _actionBrowse()
	{
		$this->execute('read');
	}
	
	public function _actionRead()
	{
		if ( $this->getOwner()->isGuest() ) {
			$this->authenticate();
			return;
		}
		
		$params	= JComponentHelper::getParams('com_socialengine');
		
		$searchQuery = KRequest::get('get.q', KFactory::get('site::com.socialengine.filter.search'), '');

		$owner = $this->getOwner();
		
		$owner->getSocialGraph()
		->query()
		->setSearchQuery($searchQuery)
		->order('lastvisitDate', 'DESC')
		->limit( $this->getLimit(), $this->getOffset() )
		;			
							
		$this->view()->assign('owner', $owner)->setLayout(KRequest::get('get.layout', 'cmd', 'default'))->display();
	}
	
	/**
	 * Method to execute a socialgraph actions
	 * @param string action { follow, unfollow, block, unblock }
	 * @return TRUE ON SUCCESS;
	 */
	public function execute($action = null)
	{
		if (empty($action)) {
			$layout = KRequest::get('get.layout','cmd');
			if ( $layout == 'follow' || $layout == 'block' ) {
				return parent::execute('confirmAdd');
			} else if ($layout == 'unfollow' || $layout == 'unblock' ) {
				return parent::execute('confirmRemove');
			}
		}	
		return parent::execute($action);
	}
	
	public function _actionConfirmremove()
	{
		$this->_displayConfirmation($this->layout, $this->person);
	}
	
	/*
	 * method to confirm that a person has been added to a socialgraph
	 * @param string layout name
	 * @return TRUE ON SUCCESS
	 */
	public function _actionConfirmadd()
	{
		$this->_displayConfirmation($this->layout, $this->person);
	}
	
	/*
	 * Method to remove a person from the social graph
	 * @return ???
	 */
	public function _actionRemove()
	{	
		$this->getViewer()->disconnect($this->person);
		
		if( KFactory::get('lib.anahita.domain.context')->save() )
			print KFactory::get('lib.anahita.uikit.prompt.message')->setBody( sprintf(JText::_('AN-SE-SOCIALGRAPH-UNFOLLOW-FORM-SUCCESS'), $this->person->name));
		else
			print KFactory::get('lib.anahita.uikit.prompt.error')->setBody(JText::_('AN-SE-PROMPT-SAVED-ERROR'));
	}
	
	/*
	 * Method to add a person to the socialgraph
	 * @return ???
	 */
	public function _actionAdd()
	{			
		$edge 	 = $this->getViewer()->{$this->type}($this->person);
		
		$message = KRequest::get('post.optional_message', 'string', null);
		
		if ( $edge && $this->type == 'follow' ) 
			 $this->getApplication()
						->publishFollowStory($edge->nodeB, $message);	
		
		$msg = ($this->type == 'follow') ? JText::_('AN-SE-SOCIALGRAPH-FOLLOW-FORM-SUCCESS') : JText::_('AN-SE-SOCIALGRAPH-BLOCK-FORM-SUCCESS');
		
		
		if( $edge && KFactory::get('lib.anahita.domain.context')->save() )
			print KFactory::get('lib.anahita.uikit.prompt.message')->setBody( sprintf($msg, $this->person->name));
		else
			print KFactory::get('lib.anahita.uikit.prompt.error')->setBody(JText::_('AN-SE-PROMPT-SAVED-ERROR'));
	}
		
	public function validateAdd()
	{
		if ( KRequest::has('request.block') )
			$this->type		 = KRequest::get('request.block','cmd') ? 'block' : 'follow';
		else
			$this->type		 = $this->layout;
			
		$method 		 = 'can'.ucfirst($this->type);
		return $this->getViewer()->$method($this->person);
	}
		
	/*
	 * method to display confirmation
	 * @param STRING layout name
	 * @param OBJECT person node
	 */
	protected function _displayConfirmation($layout, $person)
	{
		$owner  = AnModelAnahita::getSessionViewer();
		$this->view()->assign(array('owner'=>$owner,'person'=>$person))->setLayout($layout)->display();
	}

//end class	
}