<?php
/**
 * comment_inc
 *
 * @author   spider <spider@steelsun.com>
 * @version  $Revision: 1.54 $
 * @package  liberty
 * @subpackage functions
 */

// $Header: /cvsroot/bitweaver/_bit_liberty/comments_inc.php,v 1.54 2009/01/11 09:00:39 squareing Exp $

// Copyright (c) 2002-2003, Luis Argerich, Garland Foster, Eduardo Polidor, et. al.
// All Rights Reserved. See copyright.txt for details and a complete list of authors.
// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.

// This file sets up the information needed to display
// the comments preferences, post-comment box and the
// list of comments. Finally it displays blog-comments.tpl
// using this information

// Setup URLS for the Comments next and prev buttons and use variables that
// cannot be aliased by normal Bit variables.
// Traverse each _REQUEST data adn put them in an array

// this script may only be included - so its better to die if called directly.


/**
 * Parameters that need to be set when calling this file
 * @param numeric $commentsParentId    The content id of the object where a new comment will be attached                                  (required)
 * @param array   $commentsParentIds   The list of content id of object the comments will be displayed - if not defined $commentsParentId (required if $commentsParentId is not set)
 * @param string  $comments_return_url The URL the user should be sent to after posting the comment                                       (required)
**/


/**
 * required setup
 */
require_once( LIBERTY_PKG_PATH.'LibertyComment.php' );

global $commentsLib, $gBitSmarty, $gBitSystem;

if( $gBitSystem->isPackageActive( 'bitboards' )) {
	require_once(BITBOARDS_PKG_PATH.'BitBoardTopic.php');
}
if( $gBitSystem->isPackageActive( 'tickets' )) {
	require_once( TICKETS_PKG_PATH.'BitTicket.php' );
}

$postComment = array();
$formfeedback = array();
$gBitSmarty->assign_by_ref( 'formfeedback', $formfeedback );

// make sure that we don't feed ajax comments if we don't have javascript enabled
if( !BitThemes::isJavascriptEnabled() ) {
	$gBitSystem->setConfig( 'comments_ajax', 'n' );
}

if( $gBitSystem->isFeatureActive( 'comments_ajax' ) && !empty( $gContent ) && is_object( $gContent ) && $gContent->isCommentable() ) {
	$gBitSmarty->assign( 'comments_ajax', TRUE );
	$gBitThemes->loadAjax( 'mochikit', array( 'Iter.js', 'DOM.js', 'Style.js', 'Color.js', 'Position.js', 'Visual.js' ));
}

if( @BitBase::verifyId( $_REQUEST['delete_comment_id'] )) {
	$deleteComment = new LibertyComment($_REQUEST['delete_comment_id']);
	if( $deleteComment->isValid() && $gContent->hasUserPermission( 'p_liberty_admin_comments' )) {
		$deleteComment->deleteComment();
	}
}

if( @BitBase::verifyId( $_REQUEST['post_comment_id'] ) && $gContent->hasUserPermission( 'p_liberty_post_comments', TRUE, TRUE )) {
	$post_comment_id = $_REQUEST['post_comment_id'];
	$editComment = new LibertyComment( $post_comment_id );
	//if we are passed a comment id but not going to store it then turn off ajax
	if( !isset( $_REQUEST['post_comment_submit'] ) && !isset( $_REQUEST['post_comment_cancel'] )){
		//even if ajax is on - we force it off in this case
		$gBitSmarty->assign( 'comments_ajax', FALSE );
	}

	if( $editComment->mInfo['content_id'] ) {
		if( $editComment->userCanUpdate( $gContent )) {
			$postComment['data'] = $editComment->mInfo['data'];
			$postComment['title'] = $editComment->mInfo['title'];
		} else {
			$formfeedback['error'] = "You do not have permission to edit this comment.";
			$editComment = NULL;
			$post_comment_id = NULL;
		}
	} else {
		$formfeedback['error'] = "Comment does not exist.";
		$editComment = NULL;
		$post_comment_id = NULL;
	}
} else {
	$post_comment_id = NULL;
	$editComment = NULL;
}
$gBitSmarty->assign('post_comment_id', $post_comment_id);

// Store comment posts
if( !empty( $_REQUEST['post_comment_submit'] ) && $gContent->hasUserPermission( 'p_liberty_post_comments', TRUE, TRUE )) {
	$storeComment = new LibertyComment( @BitBase::verifyId( $editComment->mCommentId ) ? $editComment->mCommentId : NULL );
	$storeRow = array();
	$storeRow['title'] = $_REQUEST['comment_title'];
	$storeRow['edit'] = $_REQUEST['comment_data'];

	if( empty( $_REQUEST['post_comment_id'] ) && $gBitSystem->isPackageActive( 'bitboards' )) {
		$content_type = $gBitUser->getPreference( 'signature_content_type' );
		$content_data = $gBitUser->getPreference( 'signature_content_data' );
		if( !empty( $content_type ) && !empty( $content_data )) {
			$storeRow['edit'] .= "\n{renderer format_guid=$content_type class=mb-signature}$content_data{/renderer}";
		}
	}

	$storeRow['root_id'] = $commentsParentId;
	$storeRow['parent_id'] = (@BitBase::verifyId($storeComment->mInfo['parent_id']) ? $storeComment->mInfo['parent_id'] : (!@BitBase::verifyId($_REQUEST['post_comment_reply_id']) ? $commentsParentId : $_REQUEST['post_comment_reply_id']));
	$storeRow['content_id'] = (@BitBase::verifyId($storeComment->mContentId) ? $storeComment->mContentId : NULL);

	if( !empty( $_REQUEST['captcha'] )) {
		$storeRow['captcha'] = $_REQUEST['captcha'];
	}
	if( !empty($_REQUEST['comment_name'] )) {
		$storeRow['anon_name'] = $_REQUEST['comment_name'];
	}
	if( !empty( $_REQUEST['format_guid'] )) {
		$storeRow['format_guid'] = $_REQUEST['format_guid'];
	}

	$ticketValid = TRUE;
	if( $gBitSystem->isPackageActive( 'tickets' )) {
		$ticketValid = $gContent->storeOnlyHeader( $_REQUEST['ticket'] );
		if( $ticketValid ) {
			$gContent->loadTicketHistory();
			$storeRow['edit'] = "{history id=".$_REQUEST['ticket']['historyIds'][0]."} ".$storeRow['edit'];
		}
	}

	if( !( $gBitSystem->isPackageActive( 'bitboards' ) && BitBoardTopic::isLockedMsg( $storeRow['parent_id'] ))) {
		if( $ticketValid && $storeComment->storeComment( $storeRow )) {
			if( $gBitSystem->isPackageActive('bitboards') && $gBitSystem->isFeatureActive( 'bitboards_thread_track' )) {
				$topic_id = substr( $storeComment->mInfo['thread_forward_sequence'], 0, 10 );
				$data = BitBoardTopic::getNotificationData($topic_id);
				foreach( $data['users'] as $login => $user ) {
					if( $data['topic']->mInfo['llc_last_modified'] > $user['track_date'] && $data['topic']->mInfo['llc_last_modified'] > $user['track_notify_date'] ) {
						$data['topic']->sendNotification( $user );
					}
				}
			}
			$postComment = NULL;
		} else {
			$formfeedback['error']=$storeComment->mErrors;
			$postComment['data'] = $_REQUEST['comment_data'];
			$postComment['title'] = $_REQUEST['comment_title'];
			if( !empty( $_REQUEST['comment_name'] ) ) {
				$postComment['anon_name'] = $_REQUEST['comment_name'];
			}

			$_REQUEST['post_comment_request'] = TRUE;
			//this is critical and triggers other settings if store fails - do not remove without looking at what preview effects
			$_REQUEST['post_comment_preview'] = TRUE;
		}
	} else {
		$formfeedback['warning']="The selected Topic is Locked posting is disabled";
	}
} elseif(!empty($_REQUEST['post_comment_request']) && !$gContent->hasUserPermission( 'p_liberty_post_comments', TRUE, TRUE )) {
	$formfeedback['warning']="You don't have p_liberty_post_comments";
}

// $post_comment_request is a flag indicating whether or not to display the comment input form
if( empty( $_REQUEST['post_comment_request'] ) && !$gBitSystem->isFeatureActive( 'comments_auto_show_form' ) ) {
	$post_comment_request = NULL;
} elseif( $gContent->hasUserPermission( 'p_liberty_post_comments', TRUE, TRUE ) ) {
	$post_comment_request = TRUE;
}

if( !empty( $_REQUEST['post_comment_request'] ) && $_REQUEST['post_comment_request'] == 'y' && !$gContent->hasUserPermission( 'p_liberty_post_comments', TRUE, TRUE ) ) {
	$gBitSystem->fatalPermission( 'p_liberty_post_comments' );
}
$gBitSmarty->assign_by_ref('post_comment_request', $post_comment_request);

if( !empty( $_REQUEST['post_comment_cancel'] ) ) {
	$postComment = NULL;
}

// $post_comment_preview is a flag indicating that the user wants to preview their comment prior to saving it
if( !empty( $_REQUEST['post_comment_preview'] )) {
	if( isset( $_REQUEST['no_js_preview'] ) && $_REQUEST['no_js_preview']=="y" ) {
		$no_js_preview = $_REQUEST['no_js_preview'];

		//even if ajax is on - we force it off in this case
		$gBitSmarty->assign( 'comments_ajax', FALSE );
	} else {
		$no_js_preview = "n";
	}

	$gBitSmarty->assign_by_ref( 'no_js_preview', $no_js_preview );

	$postComment['user_id'] = $gBitUser->mUserId;
	$postComment['title'] = $_REQUEST['comment_title'];
	if( !empty( $_REQUEST['comment_name'] )) {
		$postComment['anon_name'] = $_REQUEST['comment_name'];
	}
	$postComment['data'] = $_REQUEST['comment_data'];
	$postComment['format_guid'] = empty( $_REQUEST['format_guid'])? $gBitSystem->getConfig( 'default_format' ) : $_REQUEST['format_guid'];
	$postComment['parsed_data'] = LibertyComment::parseData( $postComment );
	$postComment['created'] = time();
	$postComment['last_modified'] = time();
	$gBitSmarty->assign('post_comment_preview', TRUE);
}

// $post_comment_reply_id is the content_id which a post is replying to
if( @BitBase::verifyId( $_REQUEST['post_comment_reply_id'] )) {
	$post_comment_reply_id = $_REQUEST['post_comment_reply_id'];
	$tmpComment = new LibertyComment( NULL, $post_comment_reply_id );
	if( !empty( $_REQUEST['quote'] )) {
		$postComment['data'] = $tmpComment->getQuoted();
	}
	if( preg_match( '/^' . tra( 'Re:' ) . '/', $tmpComment->mInfo['title'] )) {
		$comment_prefix = '';
	} else {
		$comment_prefix = tra( 'Re:' ) . " ";
	}

	//this always overrides the title with "Re: Parent Title" -- not sure what it really should do so I put in this conditional for previews
	if( !isset( $_REQUEST['comment_title'] )) {
		$postComment['title'] = $comment_prefix.$tmpComment->mInfo['title'];
	}

	$gBitSmarty->assign( 'post_comment_reply_id', $post_comment_reply_id );
}

if( !empty( $_SESSION['liberty_comments_per_page'] )) {
	$maxComments = $_SESSION['liberty_comments_per_page'];
} else {
	$maxComments = $gBitSystem->getConfig( 'comments_per_page', 10 );
}

if( !empty( $_REQUEST["comments_maxComments"] )) {
	$maxComments = $_REQUEST["comments_maxComments"];
	$comments_at_top_of_page = 'y';
	$_SESSION['liberty_comments_per_page'] = $maxComments;
}

if( !empty( $_SESSION['liberty_comments_ordering'] )) {
	$comments_sort_mode = $_SESSION['liberty_comments_ordering'];
} else {
	$comments_sort_mode = $gBitSystem->getConfig( 'comments_default_ordering', 'commentDate_desc' );
}

if( !empty( $_REQUEST["comments_sort_mode"] )) {
	$comments_sort_mode = $_REQUEST["comments_sort_mode"];
	$comments_at_top_of_page = 'y';
	$_SESSION['liberty_comments_ordering'] = $comments_sort_mode;
}

if( !empty( $_SESSION['liberty_comments_display_mode'] )) {
	$comments_display_style = $_SESSION['liberty_comments_display_mode'];
} else {
	$comments_display_style = $gBitSystem->getConfig( 'comments_default_display_mode', 'threaded' );
}

if( !empty( $_REQUEST["comments_style"] ) ) {
	$comments_display_style = $_REQUEST["comments_style"];
	$comments_at_top_of_page = 'y';
	$_SESSION['liberty_comments_display_mode'] = $comments_display_style;
}

if( !empty( $_REQUEST['comment_page'] ) || !empty( $_REQUEST['post_comment_request'] ) ) {
	$comments_at_top_of_page = 'y';
}
$commentOffset = !empty( $_REQUEST['comment_page'] ) ? ($_REQUEST['comment_page'] - 1) * $maxComments : 0;

if( empty( $gComment )) {
	$gComment = new LibertyComment( NULL, $gContent->mContentId );
}

$currentPage = !empty( $_REQUEST['comment_page'] ) ? $_REQUEST['comment_page'] : 1;
if( $currentPage < 1 ) {
	$currentPage = 1;
}

# logic to support displaying a single comment -- used when we need a URL pointing to a comment
if( !empty( $_REQUEST['view_comment_id'] )) {
	$commentOffset = $gComment->getNumComments_upto( $_REQUEST['view_comment_id'] );
	#       echo "commentOffset =$commentOffset= maxComments=$maxComments=\n";
	$comments_sort_mode = 'commentDate_asc';
	$comments_display_style = 'flat';
	$comments_at_top_of_page = 'y';
	$maxComments = 1;
	$currentPage = ceil( $commentOffset + 1 / $maxComments );
} else {
	$commentOffset = ( $currentPage - 1 ) * $maxComments;
}


// $commentsParentId is the content_id which the comment tree is attached to
if( !@BitBase::verifyId( $commentsParentId ) ) {
	$comments = array();
	$numComments = 0;
} else {
	if( @BitBase::verifyId( $commentsParentIds ) ) {
		$parents = $commentsParentIds;
	} else {
		$parents = $commentsParentId;
	}
	// pass in a reference to the root object so that we can do proper permissions checks
	if ( is_object( $gContent )) {
		$gComment->mRootObj = $gContent;
	}
	$numComments = $gComment->getNumComments( $commentsParentId );
	if ($commentOffset > $numComments) {
		$commentOffset = $numComments / $maxComments;
		$currentPage = ceil( $commentOffset+1 / $maxComments );
	}
	$comments = $gComment->getComments( $parents, $maxComments, $commentOffset, $comments_sort_mode, $comments_display_style );
}

if( $comments_display_style == 'flat' ) {
	$commentsTree = $comments;
} else {
	$commentsTree = array();
	foreach( $comments as $id => $node ){
		if( !empty( $comments[ $node['parent_id'] ] )) {
			$comments[ $node['parent_id'] ]['children'][$id] = &$comments[$id];
		}
		if( $node['parent_id'] == $node['root_id'] || empty( $comments[ $node['parent_id'] ] )) {
			$comments[$id]['level'] = 0;
			$commentsTree[$id] = &$comments[$id];
		}
	}
}

$gBitSmarty->assign_by_ref( 'comments', $commentsTree );
$gBitSmarty->assign( 'maxComments', $maxComments );

$numCommentPages = ceil( $numComments / $maxComments );
$comments_return_url = $comments_return_url.( !strpos( $comments_return_url, '?' ) ? '?' : '' );

// libertypagination smarty function setup
$commentsPgnHash = array(
	'numPages'      => $numCommentPages,
	'pgnName'       => 'comment_page',
	'page'          => $currentPage,
	'comment_page'  => $currentPage,
	'url'           => $comments_return_url,
	'comments_page' => ( empty( $comments_on_separate_page ) ? FALSE : $comments_on_separate_page ),
	'ianchor'       => 'editcomments',
);
$gBitSmarty->assign_by_ref( 'commentsPgnHash', $commentsPgnHash );
$gBitSmarty->assign_by_ref( 'postComment', $postComment );
$gBitSmarty->assign_by_ref( 'gComment', $gComment );

$gBitSmarty->assign( 'currentTimestamp', time() );
$gBitSmarty->assign( 'comments_return_url', $comments_return_url );
$gBitSmarty->assign( 'comments_at_top_of_page', ( isset( $comments_at_top_of_page ) && $gBitSystem->getConfig( 'comments_reorganise_page_layout', 'n' ) == 'y' ) ? $comments_at_top_of_page : NULL );
$gBitSmarty->assign( 'comments_style', $comments_display_style );
$gBitSmarty->assign( 'comments_sort_mode', $comments_sort_mode );
$gBitSmarty->assign( 'textarea_id', 'commentpost' );
$gBitSmarty->assign( 'comments_count', $numComments );

if( !empty( $_REQUEST['post_comment_request'] )) {
	if( $gBitSystem->isPackageActive( 'bitboards' )
		&& (
			BitBoardTopic::isLockedMsg( @BitBase::verifyId( $storeComment->mInfo['parent_id'] )
			? $storeComment->mInfo['parent_id'] : ( !@BitBase::verifyId( $_REQUEST['post_comment_reply_id'] )
			? $commentsParentId : $_REQUEST['post_comment_reply_id'] ))
		)
	) {
		unset( $_REQUEST['post_comment_request'] );
		unset( $_GET['post_comment_request'] );
		unset( $_POST['post_comment_request'] );
		$formfeedback['warning']="The selected Topic is Locked posting is disabled";
	}
}

?>