<?php

/*
 * Nucleus: PHP/MySQL Weblog CMS (http://nucleuscms.org/)
 * Copyright (C) 2002-2009 The Nucleus Group
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 * (see nucleus/documentation/index.html#license for more info)
 */
/**
 * A class representing an item
 *
 * @license http://nucleuscms.org/license.txt GNU General Public License
 * @copyright Copyright (C) 2002-2009 The Nucleus Group
 * @version $Id: ITEM.php 1470 2010-11-29 22:10:16Z ftruscot $
 */
class ITEM {

	var $itemid;

	/**
	  * Constructor of an ITEM object
	  * 
	  * @param integer $itemid id of the item
	  */
	function ITEM($itemid) {
		$this->itemid = $itemid;
	}

	/**
	  * Returns one item with the specific itemid
	  * 
	  * @param integer $itemid id of the item
	  * @param boolean $allowdraft
	  * @param boolean $allowfuture	  	  	  	  
	  * @static
	  */
	function getitem($itemid, $allowdraft, $allowfuture) {
		global $manager;

		$itemid = intval($itemid);

		$query =  'SELECT i.idraft as draft, i.inumber as itemid, i.iclosed as closed, '
			   . ' i.ititle as title, i.ibody as body, m.mname as author, '
			   . ' i.iauthor as authorid, i.itime, i.imore as more, i.ikarmapos as karmapos, '
			   . ' i.ikarmaneg as karmaneg, i.icat as catid, i.iblog as blogid '
			   . ' FROM '.sql_table('item').' as i, '.sql_table('member').' as m, ' . sql_table('blog') . ' as b '
			   . ' WHERE i.inumber=' . $itemid
			   . ' and i.iauthor=m.mnumber '
			   . ' and i.iblog=b.bnumber';

		if (!$allowdraft)
			$query .= ' and i.idraft=0';

		if (!$allowfuture) {
			$blog =& $manager->getBlog(getBlogIDFromItemID($itemid));
			$query .= ' and i.itime <=' . mysqldate($blog->getCorrectTime());
		}

		$query .= ' LIMIT 1';

		$res = sql_query($query);

		if (sql_num_rows($res) == 1)
		{
			$aItemInfo = sql_fetch_assoc($res);
			$aItemInfo['timestamp'] = strtotime($aItemInfo['itime']);
			return $aItemInfo;
		} else {
			return 0;
		}

	}

	/**
	 * Tries to create an item from the data in the current request (comes from
	 * bookmarklet or admin area
	 *
	 * Returns an array with status info:
	 * status = 'added', 'error', 'newcategory'
	 *
	 * @static
	 */
	function createFromRequest() {
		 global $member, $manager;

		 $i_author = 		$member->getID();
		 $i_body = 			postVar('body');
		 $i_title =			postVar('title');
		 $i_more = 			postVar('more');
		 $i_actiontype = 	postVar('actiontype');
		 $i_closed = 		intPostVar('closed');
		 $i_hour = 			intPostVar('hour');
		 $i_minutes = 		intPostVar('minutes');
		 $i_month = 		intPostVar('month');
		 $i_day = 			intPostVar('day');
		 $i_year = 			intPostVar('year');

		 $i_catid = 		postVar('catid');

		 $i_draftid = 		intPostVar('draftid');

		 if (!$member->canAddItem($i_catid))
			return array('status' => 'error', 'message' => _ERROR_DISALLOWED);

		 if (!$i_actiontype) $i_actiontype = 'addnow';

		 switch ($i_actiontype) {
			case 'adddraft':
				$i_draft = 1;
				break;
			case 'addfuture':
			case 'addnow':
			default:
				$i_draft = 0;
		 }

		 if (!trim($i_body))
			return array('status' => 'error', 'message' => _ERROR_NOEMPTYITEMS);

		// create new category if needed
		if (strstr($i_catid,'newcat')) {
			// get blogid
			list($i_blogid) = sscanf($i_catid,"newcat-%d");

			// create
			$blog =& $manager->getBlog($i_blogid);
			$i_catid = $blog->createNewCategory();

			// show error when sth goes wrong
			if (!$i_catid)
				return array('status' => 'error','message' => 'Could not create new category');
		} else {
			// force blogid (must be same as category id)
			$i_blogid = getBlogIDFromCatID($i_catid);
			$blog =& $manager->getBlog($i_blogid);
		}

		if ($i_actiontype == 'addfuture') {
			$posttime = mktime($i_hour, $i_minutes, 0, $i_month, $i_day, $i_year);

			// make sure the date is in the future, unless we allow past dates
			if ((!$blog->allowPastPosting()) && ($posttime < $blog->getCorrectTime()))
				$posttime = $blog->getCorrectTime();
		} else {
			// time with offset, or 0 for drafts
			$posttime = $i_draft ? 0 : $blog->getCorrectTime();
		}

		if ($posttime > $blog->getCorrectTime()) {
			$posted = 0;
			$blog->setFuturePost();
		}
		else {
			$posted = 1;
		}

		$itemid = $blog->additem($i_catid, $i_title,$i_body,$i_more,$i_blogid,$i_author,$posttime,$i_closed,$i_draft,$posted);

		//Setting the itemOptions
		$aOptions = requestArray('plugoption');
		NucleusPlugin::_applyPluginOptions($aOptions, $itemid);
		$manager->notify('PostPluginOptionsUpdate',array('context' => 'item', 'itemid' => $itemid, 'item' => array('title' => $i_title, 'body' => $i_body, 'more' => $i_more, 'closed' => $i_closed, 'catid' => $i_catid)));

		if ($i_draftid > 0) {
			// delete permission is checked inside ITEM::delete()
			ITEM::delete($i_draftid);
		}

		// success
		if ($i_catid != intRequestVar('catid'))
			return array('status' => 'newcategory', 'itemid' => $itemid, 'catid' => $i_catid);
		else
			return array('status' => 'added', 'itemid' => $itemid);
	}


	/**
	  * Updates an item
	  * 
	  * @static
	  */
	function update($itemid, $catid, $title, $body, $more, $closed, $wasdraft, $publish, $timestamp = 0) {
		global $manager;

		$itemid = intval($itemid);

		// make sure value is 1 or 0
		if ($closed != 1) $closed = 0;

		// get destination blogid
		$new_blogid = getBlogIDFromCatID($catid);
		$old_blogid = getBlogIDFromItemID($itemid);

		// move will be done on end of method
		if ($new_blogid != $old_blogid)
			$moveNeeded = 1;

		// add <br /> before newlines
		$blog =& $manager->getBlog($new_blogid);
		if ($blog->convertBreaks()) {
			$body = addBreaks($body);
			$more = addBreaks($more);
		}

		// call plugins
		$manager->notify('PreUpdateItem',array('itemid' => $itemid, 'title' => &$title, 'body' => &$body, 'more' => &$more, 'blog' => &$blog, 'closed' => &$closed, 'catid' => &$catid));

		// update item itsself
		$query =  'UPDATE '.sql_table('item')
			   . ' SET'
			   . " ibody='". sql_real_escape_string($body) ."',"
			   . " ititle='" . sql_real_escape_string($title) . "',"
			   . " imore='" . sql_real_escape_string($more) . "',"
			   . " iclosed=" . intval($closed) . ","
			   . " icat=" . intval($catid);

		// if we received an updated timestamp in the past, but past posting is not allowed,
		// reject that date change (timestamp = 0 will make sure the current date is kept)
		if ( (!$blog->allowPastPosting()) && ($timestamp < $blog->getCorrectTime()))
				$timestamp = 0;

		if ($timestamp > $blog->getCorrectTime(time())) {
			$isFuture = 1;
			$query .= ', iposted=0';
		}
		else {
			$isFuture = 0;
			$query .= ', iposted=1';
		}

		if ($wasdraft && $publish) {
			// set timestamp to current date only if it's not a future item
			// draft items have timestamp == 0
			// don't allow timestamps in the past (unless otherwise defined in blogsettings)
			$query .= ', idraft=0';

			if ($timestamp == 0)
				$timestamp = $blog->getCorrectTime();

			// send new item notification
			if (!$isFuture && $blog->getNotifyAddress() && $blog->notifyOnNewItem())
				$blog->sendNewItemNotification($itemid, $title, $body);
		}
		
		// save back to drafts		
		if (!$wasdraft && !$publish) {
			$query .= ', idraft=1';
			// set timestamp back to zero for a draft
			$query .= ", itime=" . mysqldate($timestamp);
		}

		// update timestamp when needed
		if ($timestamp != 0)
			$query .= ", itime=" . mysqldate($timestamp);

		// make sure the correct item is updated
		$query .= ' WHERE inumber=' . $itemid;

		// off we go!
		sql_query($query);

		$manager->notify('PostUpdateItem',array('itemid' => $itemid));

		// when needed, move item and comments to new blog
		if ($moveNeeded)
			ITEM::move($itemid, $catid);

		//update the itemOptions
		$aOptions = requestArray('plugoption');
		NucleusPlugin::_applyPluginOptions($aOptions);
		$manager->notify('PostPluginOptionsUpdate',array('context' => 'item', 'itemid' => $itemid, 'item' => array('title' => $title, 'body' => $body, 'more' => $more, 'closed' => $closed, 'catid' => $catid)));

	}

	/**
	 * Move an item to another blog (no checks)
	 *
	 * @static
	 */	 	 	 	
	function move($itemid, $new_catid) {
		global $manager;

		$itemid = intval($itemid);
		$new_catid = intval($new_catid);

		$new_blogid = getBlogIDFromCatID($new_catid);

		$manager->notify(
			'PreMoveItem',
			array(
				'itemid' => $itemid,
				'destblogid' => $new_blogid,
				'destcatid' => $new_catid
			)
		);


		// update item table
		$query = 'UPDATE '.sql_table('item')." SET iblog=$new_blogid, icat=$new_catid WHERE inumber=$itemid";
		sql_query($query);

		// update comments
		$query = 'UPDATE '.sql_table('comment')." SET cblog=" . $new_blogid." WHERE citem=" . $itemid;
		sql_query($query);

		$manager->notify(
			'PostMoveItem',
			array(
				'itemid' => $itemid,
				'destblogid' => $new_blogid,
				'destcatid' => $new_catid
			)
		);
	}

	/**
	  * Deletes an item
	  */
	function delete($itemid) {
		global $manager, $member;

		$itemid = intval($itemid);

		// check to ensure only those allow to alter the item can
		// proceed
		if (!$member->canAlterItem($itemid)) {
			return 1;
		}


		$manager->notify('PreDeleteItem', array('itemid' => $itemid));

		// delete item
		$query = 'DELETE FROM '.sql_table('item').' WHERE inumber=' . $itemid;
		sql_query($query);

		// delete the comments associated with the item
		$query = 'DELETE FROM '.sql_table('comment').' WHERE citem=' . $itemid;
		sql_query($query);

		// delete all associated plugin options
		NucleusPlugin::_deleteOptionValues('item', $itemid);

		$manager->notify('PostDeleteItem', array('itemid' => $itemid));

		return 0;
	}

	/**
	 * Returns true if there is an item with the given ID
	 *
	 * @static
	 */	 	 	
	function exists($id,$future,$draft) {
		global $manager;

		$id = intval($id);

		$r = 'select * FROM '.sql_table('item').' WHERE inumber='.$id;
		if (!$future) {
			$bid = getBlogIDFromItemID($id);
			if (!$bid) return 0;
			$b =& $manager->getBlog($bid);
			$r .= ' and itime<='.mysqldate($b->getCorrectTime());
		}
		if (!$draft) {
			$r .= ' and idraft=0';
		}
		$r = sql_query($r);

		return (sql_num_rows($r) != 0);
	}

	/**
	 * Tries to create an draft from the data in the current request (comes from
	 * bookmarklet or admin area
	 *
	 * Returns an array with status info:
	 * status = 'added', 'error', 'newcategory'
	 *
	 * @static
	 *
	 * Used by xmlHTTPRequest AutoDraft
	 */
	function createDraftFromRequest() {
		global $member, $manager;

		$i_author = $member->getID();
		$i_body = postVar('body');
		$i_title = postVar('title');
		$i_more = postVar('more');
		//$i_actiontype = postVar('actiontype');
		$i_closed = intPostVar('closed');
		//$i_hour = intPostVar('hour');
		//$i_minutes = intPostVar('minutes');
		//$i_month = intPostVar('month');
		//$i_day = intPostVar('day');
		//$i_year = intPostVar('year');
		$i_catid = postVar('catid');
		$i_draft = 1;
		$type = postVar('type');
		if ($type == 'edit') {
			$i_blogid = getBlogIDFromItemID(intPostVar('itemid'));
		}
		else {
			$i_blogid = intPostVar('blogid');
		}
		$i_draftid = intPostVar('draftid');

		if (!$member->canAddItem($i_catid)) {
			return array('status' => 'error', 'message' => _ERROR_DISALLOWED);
		}

		if (!trim($i_body)) {
			return array('status' => 'error', 'message' => _ERROR_NOEMPTYITEMS);
		}

		// create new category if needed
		if (strstr($i_catid, 'newcat')) {
			// Set in default category
			$blog =& $manager->getBlog($i_blogid);
			$i_catid = $blog->getDefaultCategory();
		}
		else {
			// force blogid (must be same as category id)
			$i_blogid = getBlogIDFromCatID($i_catid);
			$blog =& $manager->getBlog($i_blogid);
		}

		$posttime = 0;

		if ($i_draftid > 0) {
			ITEM::update($i_draftid, $i_catid, $i_title, $i_body, $i_more, $i_closed, 1, 0, 0);
			$itemid = $i_draftid;
		}
		else {
			$itemid = $blog->additem($i_catid, $i_title, $i_body, $i_more, $i_blogid, $i_author, $posttime, $i_closed, $i_draft);
		}

		// No plugin support in AutoSaveDraft yet
		//Setting the itemOptions
		//$aOptions = requestArray('plugoption');
		//NucleusPlugin::_applyPluginOptions($aOptions, $itemid);
		//$manager->notify('PostPluginOptionsUpdate',array('context' => 'item', 'itemid' => $itemid, 'item' => array('title' => $i_title, 'body' => $i_body, 'more' => $i_more, 'closed' => $i_closed, 'catid' => $i_catid)));

		// success
		return array('status' => 'added', 'draftid' => $itemid);
	}

}

?>
