<?php
/*
	Question2Answer by Gideon Greenspan and contributors
	http://www.question2answer.org/

	File: qa-include/qa-ajax-wallpost.php
	Description: Server-side response to Ajax wall post requests


	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.

	More about this license: http://www.question2answer.org/license.php
*/

	require_once QA_INCLUDE_DIR.'app/messages.php';
	require_once QA_INCLUDE_DIR.'app/users.php';
	require_once QA_INCLUDE_DIR.'app/cookies.php';
	require_once QA_INCLUDE_DIR.'db/selects.php';


	$message=qa_post_text('message');
	$tohandle=qa_post_text('handle');
	$morelink=qa_post_text('morelink');

	$touseraccount=qa_db_select_with_pending(qa_db_user_account_selectspec($tohandle, false));
	$loginuserid=qa_get_logged_in_userid();

	$errorhtml=qa_wall_error_html($loginuserid, $touseraccount['userid'], $touseraccount['flags']);

	if ($errorhtml || (!strlen($message)) || !qa_check_form_security_code('wall-'.$tohandle, qa_post_text('code')) )
		echo "QA_AJAX_RESPONSE\n0"; // if there's an error, process in non-Ajax way

	else {
		$messageid=qa_wall_add_post($loginuserid, qa_get_logged_in_handle(), qa_cookie_get(),
			$touseraccount['userid'], $touseraccount['handle'], $message, '');
		$touseraccount['wallposts']++; // won't have been updated

		$usermessages=qa_db_select_with_pending(qa_db_recent_messages_selectspec(null, null, $touseraccount['userid'], true, qa_opt('page_size_wall')));
		$usermessages=qa_wall_posts_add_rules($usermessages, 0);

		$themeclass=qa_load_theme_class(qa_get_site_theme(), 'wall', null, null);
		$themeclass->initialize();

		echo "QA_AJAX_RESPONSE\n1\n";

		echo 'm'.$messageid."\n"; // element in list to be revealed

		foreach ($usermessages as $message)
			$themeclass->message_item(qa_wall_post_view($message));

		if ($morelink && ($touseraccount['wallposts']>count($usermessages)))
			$themeclass->message_item(qa_wall_view_more_link($tohandle, count($usermessages)));
	}


/*
	Omit PHP closing tag to help avoid accidental output
*/