<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU social 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.

/**
 * The GroupFavorited plugin adds a menu item for popular notices in groups.
 *
 * @package   GroupFavoritedPlugin
 * @author    Brion Vibber <brion@status.net>
 * @copyright 2010-2019 Free Software Foundation, Inc http://www.fsf.org
 * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
 */

defined('GNUSOCIAL') || die();

class GroupFavoritedAction extends ShowgroupAction
{
    /**
     * Title of the page
     *
     * @return string page title, with page number
     * @throws Exception
     */
    public function title()
    {
        $base = $this->group->getFancyName();

        if ($this->page == 1) {
            // TRANS: %s is a group name.
            return sprintf(_m('Popular posts in %s group'), $base);
        } else {
            // TRANS: %1$s is a group name, %2$s is a group number.
            return sprintf(
                _m('Popular posts in %1$s group, page %2$d'),
                $base,
                $this->page
            );
        }
    }

    /**
     * Content area
     *
     * Shows the list of popular notices
     *
     * @return void
     */
    public function showContent()
    {
        $groupId = (int)$this->group->id;
        $weightexpr = common_sql_weight('fave.modified', common_config('popular', 'dropoff'));
        $cutoff = sprintf(
            "fave.modified > '%s'",
            common_sql_date(time() - common_config('popular', 'cutoff'))
        );

        $qry = 'SELECT notice.*, ' .
            $weightexpr . ' as weight ' .
            'FROM notice ' .
            "JOIN group_inbox ON notice.id = group_inbox.notice_id " .
            'JOIN fave ON notice.id = fave.notice_id ' .
            "WHERE $cutoff AND group_id = $groupId " .
            'GROUP BY id,profile_id,uri,content,rendered,url,created,notice.modified,reply_to,is_local,source,notice.conversation ' .
            'ORDER BY weight DESC';

        $offset = ($this->page - 1) * NOTICES_PER_PAGE;
        $limit = NOTICES_PER_PAGE + 1;

        if (common_config('db', 'type') == 'pgsql') {
            $qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
        } else {
            $qry .= ' LIMIT ' . $offset . ', ' . $limit;
        }

        $notice = Memcached_DataObject::cachedQuery(
            'Notice',
            $qry,
            600
        );

        $nl = new NoticeList($notice, $this);

        $cnt = $nl->show();

        /*if ($cnt == 0) {
            $this->showEmptyList();
        }*/

        $this->pagination(
            $this->page > 1,
            $cnt > NOTICES_PER_PAGE,
            $this->page,
            'groupfavorited',
            array('nickname' => $this->group->nickname)
        );
    }
}