<?php

/**
 * ProcessWire Role Process
 *
 * For more details about how Process modules work, please see: 
 * /wire/core/Process.php 
 * 
 * ProcessWire 2.x 
 * Copyright (C) 2012 by Ryan Cramer 
 * Licensed under GNU/GPL v2, see LICENSE.TXT
 * 
 * http://www.processwire.com
 * http://www.ryancramer.com
 *
 */

class ProcessRole extends ProcessPageType {

	static public function getModuleInfo() {
		return array(
			'title' => __('Roles', __FILE__), // getModuleInfo title
			'version' => 101, 
			'summary' => __('Manage user roles and what permissions are attached', __FILE__), // getModuleInfo summary 
			'permanent' => true, 
			'permission' => 'role-admin', // add this permission if you want this Process available for roles other than Superuser
			'icon' => 'gears',
			'useNavJSON' => true,
			); 
	}
	
	public function init() {
		parent::init();
		$this->addHookBefore('InputfieldForm::render', $this, 'hookFormRender'); 
	}
	
	public function hookFormRender(HookEvent $event) {
		$form = $event->object;
		$f = $form->getChildByName('permissions');
		if(!$f) return;
		$f->label = $this->_('Permissions'); 
		$f->notes = "&dagger; " . $this->_('Indicated permissions open more permission options that are revealed after checking the box and saving the page.') . "\n\n" . 
			$this->_('*Note that checking the page-edit permission here means only that the role can be selected for edit access at the template level. Simply assigning the page-edit permission here does grant edit permission until it is also selected in one or more template access control settings.');
		$f = $f->getInputfield();
		$f->table = true;
		$f->thead = $this->_('name|title'); // Table head with each column title separated by a pipe "|"
		$value = $f->attr('value');
		$options = $f->getOptions();
		$pageViewID = 0; 
		$parentPermissions = array();
		
		foreach($options as $name => $label) $f->removeOption($name);
		
		foreach($this->wire('permissions') as $permission) {
			$parentPermission = $permission->getParentPermission();
			if($parentPermission->id) {
				if(!isset($parentPermissions[$parentPermission->id])) $parentPermissions[$parentPermission->id] = array();
				$parentPermissions[$parentPermission->id][$permission->id] = $permission->name;
			}
		}
		
		foreach($this->wire('permissions') as $permission) {
			$parentPermission = $permission->getParentPermission();
			if($parentPermission->id && !in_array($parentPermission->id, $value)) continue;
			$name = $permission->name;
			if($name == 'page-edit') $name .= " *";
			if($name == 'page-view') {
				$name .= " " . $this->_('(required)');
				$pageViewID = $permission->id; 
			}
			if(isset($parentPermissions[$permission->id])) $name .= " &dagger;";
			$title = str_replace('|', ' ', $permission->title); 
			$f->addOption($permission->id, "$name|$title"); 
		}
		if(!in_array($pageViewID, $value)) {
			$value[] = $pageViewID; 
			$f->attr('value', $value);
		}
	}
	
}