<?php
/*
 * $RCSfile: AddComment.inc,v $
 *
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2005 Bharat Mediratta
 * 
 * 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.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

/**
 * @version $Revision: 1.33 $ $Date: 2005/01/28 23:40:45 $
 * @package Comment
 * @subpackage UserInterface
 * @author Bharat Mediratta <bharat@menalto.com>
 */

/**
 * Add a comment to an item.
 *
 * @package Comment
 * @subpackage UserInterface
 *
 */
class AddCommentController extends GalleryController {

    /**
     * @see GalleryController::handleRequest()
     */
    function handleRequest($form) {
	global $gallery;

	$itemId = GalleryUtilities::getRequestVariables('itemId');

	/* Make sure we have permission to add a comment */
	$ret = GalleryCoreApi::assertHasItemPermission($itemId, 'comment.add');
	if ($ret->isError()) {
	    return array($ret->wrap(__FILE__, __LINE__), null);
	}

	$redirect = array();
	$status = array();
	$error = array();
	if (isset($form['action']['add'])) {
	    
	    if (empty($form['subject'])) {
		$error[] = 'form[error][subject][missing]';
	    }

	    if (empty($form['comment'])) {
		$error[] = 'form[error][comment][missing]';
	    }
	    
	    if (empty($error)) {
		/* Add the comment */
		list ($ret, $comment) = GalleryCoreApi::newFactoryInstance('GalleryEntity', 'GalleryComment');
		if ($ret->isError()) {
		    return array($ret->wrap(__FILE__, __LINE__), null);
		}
		
		if (!isset($comment)) {
		    return array(GalleryStatus::error(ERROR_MISSING_OBJECT, __FILE__, __LINE__),
				 null);
		}  

		$ret = $comment->create($itemId);
		if ($ret->isError()) {
		    return array($ret->wrap(__FILE__, __LINE__), null);
		}
		
		$comment->setCommenterId($gallery->getActiveUserId());
		$comment->setHost(GalleryUtilities::getRemoteHostAddress());
		$comment->setSubject($form['subject']);
		$comment->setComment($form['comment']);
		$comment->setDate(time());
		
		$ret = $comment->save();
		if ($ret->isError()) {
		    return array($ret->wrap(__FILE__, __LINE__), null);
		}

		/* Send the user to a confirmation page, for now */
		$redirect['view'] = 'core:ItemAdmin';
		$redirect['subView'] = 'comment:CommentChangeConfirmation';
		$redirect['itemId'] = (int)$itemId;
		$status['added'] = 1;
	    }
	} else if (isset($form['action']['preview'])) {
	    if (empty($form['subject'])) {
		$error[] = 'form[error][subject][missing]';
	    }

	    if (empty($form['comment'])) {
		$error[] = 'form[error][comment][missing]';
	    }

	    /* Fall through back to the current view */
	} else if (isset($form['action']['cancel'])) {
	    /* Where to go on a cancel?  Go to item admin.*/
	    $redirect['view'] = 'core:ItemAdmin';
	    $redirect['itemId'] = (int)$itemId;
	}

	/* Prepare our results */
	if (!empty($redirect)) {
	    $results['return'] = 1;
	    $results['redirect'] = $redirect;
	} else {
	    $results['delegate']['view'] = 'core:ItemAdmin';
	    $results['delegate']['subView'] = 'comment:AddComment';
	}
	$results['status'] = $status;
	$results['error'] = $error;

	return array(GalleryStatus::success(), $results);
    }
}

/**
 * This view will show a form to add a new comment to an item
 *
 * @package Comment
 * @subpackage UserInterface
 *
 */
class AddCommentView extends GalleryView {

    /**
     * @see GalleryView::loadTemplate
     */
    function loadTemplate(&$template, &$form) {
	global $gallery;

	/* Load our item */
	list ($ret, $item) = $this->_getItem();
	if ($ret->isError()) {
	    return array($ret->wrap(__FILE__, __LINE__), null);
	}

	/* Make sure we have permission to add a comment */
	$ret = GalleryCoreApi::assertHasItemPermission($item->getId(), 'comment.add');
	if ($ret->isError()) {
	    return array($ret->wrap(__FILE__, __LINE__), null);
	}
	
	$user = $gallery->getActiveUser();

	if ($form['formName'] != 'AddComment') {
	    $form['formName'] = 'AddComment';
	    $form['subject'] = '';
	    $form['comment'] = '';
	} else {
	    foreach (array('subject', 'comment') as $key) {
		if (empty($form[$key])) {
		    $form[$key] = '';
		}
	    }
	}

	$AddComment = array();
	$AddComment['user'] = $user->getMemberData();
	$AddComment['host'] = GalleryUtilities::getRemoteHostAddress();
	
	$template->setVariable('AddComment', $AddComment);
	$template->setVariable('controller', 'comment:AddComment');
	
	return array(GalleryStatus::success(),
		     array('body' => 'modules/comment/templates/AddComment.tpl'));
    }

    /**
     * @see GalleryView::getViewDescription()
     */
    function getViewDescription() {
	list ($ret, $core) = GalleryCoreApi::loadPlugin('module', 'core');
	if ($ret->isError()) {
	    return array($ret->wrap(__FILE__, __LINE__), null, null);
	}

	return array(GalleryStatus::success(), $core->translate('add comment'));
    }
}
?>