<?php
/**
 * This file is part of Wemag Sidebar Management.
 *
 * Wemag Sidebar Management is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Wemag Sidebar Management is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Wemag Sidebar Management.  
 * If not, see <http://www.gnu.org/licenses/>.
 * 
 * Copyright 2008 Aart-Jan Boor <aart-jan@wemag.nl>
 * Wemag Advisering <http://www.wemag.nl>
 */

require_once(KT_LIB_DIR . '/dispatcher.inc.php');

/**
 * Logic behind document and folder portlets management
 *
 */
class PortletsAdminDispatcher extends KTAdminDispatcher {
	//Vars are defined in folder_portlets.php and document_portlets.php
	var $type;
	var $portlets_page_title; 
	var $portlets_edit_page_title;
	var $config_file;
	var $about_portlet_title;
	var $actions_portlet_title;

	/**
	 * Constructor, call parent constructor
	 *
	 * @return PortletsAdminDispatcher dispatcher
	 */
	function PortletsAdminDispatcher(){
		return parent::KTAdminDispatcher();
	}

	/**
	 * Figure out what to show
	 * 
	 * @return HTML for page content
	 */
	function do_main(){
		//Are we editing an indiviual portlet?
		if($_GET['action']=='editPortlet'){
			//Yes, check for submits
			if($_POST['submit']){
				$this->doPortletEdit();
			}
			return $this->showPortletEdit();

		}else{
			//No, show list
			return $this->showPortletList();
		}
	}

	/**
	 * Uses the KT portlet registry to find installed portlets
	 * Additionally, the two main portlets (About,actions) are added manually
	 * because the don't reside in the registry.
	 *
	 * @return array list with portlets
	 */
	function _getPortletList(){
		$oPRegistry =& KTPortletRegistry::getSingleton();
		$aPortlets = $oPRegistry->getPortletsForPage(array(array('action'=>'browse')));

		$actionsPortlet = new stdClass();
		$actionsPortlet->bActive = true;
		$actionsPortlet->oPlugin = new stdClass();
		$actionsPortlet->oPlugin->sFriendlyName = "Core Application Functionality";
		$actionsPortlet->sTitle = $this->actions_portlet_title;

		$aboutPortlet = new stdClass();
		$aboutPortlet->bActive = true;
		$aboutPortlet->oPlugin = new stdClass();
		$aboutPortlet->oPlugin->sFriendlyName = "Core Application Functionality";
		$aboutPortlet->sTitle = $this->about_portlet_title;

		$aPortlets[] = $actionsPortlet;
		$aPortlets[] = $aboutPortlet;

		return $aPortlets;
	}

	/**
	 * Show list with available portlets
	 *
	 * @return string HTML for page
	 */
	function showPortletList(){
		//set breadcrumbs
		$this->oPage->setBreadcrumbDetails(_kt($this->portlets_page_title));

		//find list of available portlets
		$aPortlets = $this->_getPortletList();
		
		//encode titles
		foreach($aPortlets as $oPortlet){
			$oPortlet->sTitleURL = urlencode($oPortlet->sTitle);
		}

		//render template
		$oTemplating =& KTTemplating::getSingleton();
		$oTemplate = $oTemplating->loadTemplate("portlets_list");
		return $oTemplate->render(array('portlets' => $aPortlets,
		'type'=>$this->type));
	}

	/**
	 * Process the submited portlet edit information
	 *
	 */
	function doPortletEdit(){
		//find current configuration
		$config = $this->_getConfig();
		
		//set up config entry if required
		if($config[$_POST['cfgtitle']] == ""){
			$config[$_POST['cfgtitle']] = new stdClass();
		}
		
		//swap active value
		if($_POST['active'] == 1){
			$_POST['active'] = 0;
		}else{
			$_POST['active'] = 1;
		}

		//write config values
		$config[$_POST['cfgtitle']]->delete = $_POST['delete'];
		$config[$_POST['cfgtitle']]->active = $_POST['active'];
		$config[$_POST['cfgtitle']]->order = $_POST['order'];
		$config[$_POST['cfgtitle']]->disabled_actions = $_POST['disabled'];

		//save the configuration file
		$this->_saveConfig($config);
	}

	/**
	 * Show the portlet edit form
	 *
	 * @return string HTML for page
	 */
	function showPortletEdit(){
		//set breadcrubms
		$this->oPage->setBreadcrumbDetails($this->portlets_edit_page_title);
		
		//set up vars
		$portlet = $_GET['portlet'];
		$current_portlet = "";
		$current_config = new stdClass();
		$current_actions = null;
		$aPortlets = $this->_getPortletList();
			
		//first check if the portlet actually exists
		foreach($aPortlets as $oPortlet){
			if($oPortlet->sTitle == $portlet || urlencode($oPortlet->sTitle) == $portlet ){
				$current_portlet = $oPortlet;
				break;
			}
		}
		if($current_portlet == ""){
			die("Portlet does not exist");
		}

		//now check if there is a custom configuration available for this portlet
		$config = $this->_getConfig();
		$key = md5($current_portlet->sTitle);

		if($config[$key]!= null){
			//config found
			$current_config = $config[$key];
		}else{
			//set up default config
			$current_config->active = $current_portlet->bActive;
			$current_config->order = 0;
		}
		$current_config->cfgtitle = $key;

		//some logic to check the right form checkboxes
		if($current_config->active == false){
			$current_config->active_checked = "checked='checked'";
		}
		if($current_config->delete == true){
			$current_config->delete_checked = "checked='checked'";
		}

		//set up the actions if necessary
		if($current_portlet->sTitle == $this->actions_portlet_title ||
		$current_portlet->sTitle == $this->about_portlet_title){
			
			//get actions from KT action registry
			$oR =& KTActionRegistry::getSingleton();
			if($current_portlet->sTitle == $this->actions_portlet_title){
				$current_actions = $oR->getActions($this->type."action");
			}else{
				$current_actions = $oR->getActions($this->type."info");
			}

			//walk trough actions to find names etc.
			$new_actions = array();
			foreach($current_actions as $action){
				//construct action class
				$new_action = $oR->initializeAction($action[2],$this->oUser);
				
				//don't show any system actions
				if($new_action->systemAction != true){
					//find action display names
					$action[5] = $new_action->getDisplayName();
					if($action[5] == ''){
						$action[5] = $new_action->getName();
					}
					
					//is action disabled in our config?
					if($current_config->disabled_actions[$action[2]] == true){
						$action[6]="checked='checked'";
					}
					$new_actions[] = $action;
				}
			}
			$current_actions = $new_actions;
		}

		//render template
		$oTemplating =& KTTemplating::getSingleton();
		$oTemplate = $oTemplating->loadTemplate("edit_portlet");
		return $oTemplate->render(array('cfg' => $current_config,
											'oPortlet' => $current_portlet,
											'actions' => $current_actions)); 
	}

	/**
	 * Retrieve configuration values from file
	 *
	 * @return array config
	 */
	function _getConfig(){
		return unserialize(file_get_contents($this->config_file));
	}

	/**
	 * Save configuration to file
	 *
	 * @param array $cfg array with config values
	 */
	function _saveConfig($cfg){
		$h = fopen($this->config_file,"wb");
		fwrite($h,serialize($cfg));
		fclose($h);
	}



}

?>