<?php

/**
 * Recent pages list for admin
 *
 * ProcessWire 2.x 
 * Copyright (C) 2014 by Ryan Cramer 
 * Licensed under GNU/GPL v2, see LICENSE.TXT
 * 
 * @todo: make everything configurable
 * 
 * http://processwire.com
 *
 */

class ProcessRecentPages extends Process {

	/**
	 * Return information about this module (required)
	 *
	 */
	public static function getModuleInfo() {
		return array(
			'title' => 'Recent Pages', 
			'summary' => 'Shows a list of recently edited pages in your admin.', 
			'version' => 1, 
			'author' => 'Ryan Cramer', 
			'href' => 'http://modules.processwire.com/', 
			'icon' => 'clock-o',
			'permission' => 'page-edit-recent', 
			'permissions' => array(
				'page-edit-recent' => 'Can see recently edited pages'
				),
			'requires' => 'ProcessWire>=2.5.0, ProcessPageLister', 
			'page' => array(
				'name' => 'recent-pages', 
				'parent' => 'page',
				'title' => 'Recent', 
				),
			'useNavJSON' => true, 
			'nav' => array(
					array(
						'url' => '?edited=1&me=1', 
						'label' => 'Edited by me', 
						'navJSON' => 'navJSON/?edited=1&me=1', 
					),
					array(
						'url' => '?added=1&me=1', 
						'label' => 'Added by me',
						'navJSON' => 'navJSON/?added=1&me=1', 
					),
					array(
						'url' => '?edited=1', 
						'label' => 'Edited by any',
						'navJSON' => 'navJSON/?edited=1', 
					),
					array(
						'url' => '?added=1', 
						'label' => 'Added by any',
						'navJSON' => 'navJSON/?added=1&me=1', 
					)
				),
			);
			
	}

	public function init() {
		$this->addHookProperty('Page::recentTimeStr', $this, 'hookPageRecentTimeStr'); 
		parent::init();
	}

	public function hookPageRecentTimeStr(HookEvent $event) {	
		$page = $event->object; 
		$time = $this->getSort() == '-created' ? $page->created : $page->modified; 
		$event->return = wireRelativeTimeStr($time, true, false); 
	}

	public function ___executeNavJSON(array $options = array()) {

		$options['add'] = '';
		$options['iconKey'] = 'template.icon';
		$options['itemLabel'] = 'title|name';
		$options['itemLabel2'] = 'recentTimeStr';
		$options['sort'] = false; 

		$selector = str_replace(',,', ',', $this->getSelectorString());
		
		$items = $this->pages->find("$selector, limit=25"); 
		if(!$this->wire('user')->isSuperuser()) foreach($items as $item) {
			if(!$item->editable()) $items->remove($item); 
		}
		$options['items'] = $items; 

		return parent::___executeNavJSON($options); 
	}

	protected function getSelectorString() {

		$oldest = strtotime("-6 MONTH"); 
		$sort = $this->getSort();
		$selector = "include=unpublished, sort=$sort";

		// exclude repeaters
		$repeaters = $this->wire('pages')->get("template=admin, name=repeaters, include=all"); 
		if($repeaters->id) $selector .= ", has_parent!=$repeaters"; 

		if($this->input->get('me')) {
			if($sort == '-modified') {
				$selector .= ",,modified_users_id=$this->user, modified>=$oldest";
			} else if($sort == '-created') {
				$selector .= ",,created_users_id=$this->user, created>=$oldest";
			}
		}

		return $selector;
	}

	protected function getSort() {
		if($this->input->get('added')) {
			return "-created";
		} else {
			return "-modified";
		}
	}

	/**
	 * This function is executed when a page with your Process assigned is accessed. 
 	 *
	 * This can be seen as your main or index function. You'll probably want to replace
	 * everything in this function. 
	 *
	 */
	public function ___execute() {

		$selector = $this->getSelectorString();
		if(strpos($selector, ',,') !== false) { 
			list($initSelector, $defaultSelector) = explode(',,', $selector); 
		} else {
			$initSelector = $selector;
			$defaultSelector = '';
		}

		$a = array(
			'initSelector' => $initSelector, 
			'defaultSelector' => $defaultSelector, 
			'defaultSort' => $this->getSort(), 
			); 

		$url = ProcessPageLister::addSessionBookmark('recent-pages', $a); 

		if($url) {
			$this->session->redirect($url); 
		} else {
			$this->error("This feature requires page-lister permission"); 
		}
		
	}	

	public function ___executeEdit() {
		$id = (int) $this->input->get('id'); 
		if(!$id) throw new WireException("No page ID"); 
		$this->session->redirect("../edit/?id=$id"); 
	}

}