<?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/>.

/**
 * Sessions administration panel
 *
 * @category  Settings
 * @package   GNUsocial
 * @author    Zach Copley <zach@status.net>
 * @copyright 2010 StatusNet, Inc.
 * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
 */

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

/**
 * Admin site sessions
 *
 * @category  Admin
 * @package   GNUsocial
 * @author    Zach Copley <zach@status.net>
 * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
 */
class SessionsadminpanelAction extends AdminPanelAction
{
    /**
     * Returns the page title
     *
     * @return string page title
     */
    public function title()
    {
        // TRANS: Title for the sessions administration panel.
        return _m('TITLE', 'Sessions');
    }

    /**
     * Instructions for using this form.
     *
     * @return string instructions
     */
    public function getInstructions()
    {
        // TRANS: Instructions for the sessions administration panel.
        return _('Session settings for this StatusNet site');
    }

    /**
     * Show the site admin panel form
     *
     * @return void
     */
    public function showForm()
    {
        $form = new SessionsAdminPanelForm($this);
        $form->show();
        return;
    }

    /**
     * Save settings from the form
     *
     * @return void
     */
    public function saveSettings()
    {
        static $booleans = array('sessions' => array('handle', 'debug'));

        $values = array();

        foreach ($booleans as $section => $parts) {
            foreach ($parts as $setting) {
                $values[$section][$setting] = ($this->boolean($setting)) ? 1 : 0;
            }
        }

        // This throws an exception on validation errors

        $this->validate($values);

        // assert(all values are valid);

        $config = new Config();

        $config->query('START TRANSACTION');

        foreach ($booleans as $section => $parts) {
            foreach ($parts as $setting) {
                Config::save($section, $setting, $values[$section][$setting]);
            }
        }

        $config->query('COMMIT');

        return;
    }

    public function validate(&$values)
    {
        // stub
    }
}

// @todo FIXME: Class documentation missing.
class SessionsAdminPanelForm extends AdminForm
{
    /**
     * ID of the form
     *
     * @return int ID of the form
     */
    public function id()
    {
        return 'sessionsadminpanel';
    }

    /**
     * class of the form
     *
     * @return string class of the form
     */
    public function formClass()
    {
        return 'form_settings';
    }

    /**
     * Action of the form
     *
     * @return string URL of the action
     */
    public function action()
    {
        return common_local_url('sessionsadminpanel');
    }

    /**
     * Data elements of the form
     *
     * @return void
     */
    public function formData()
    {
        $this->out->elementStart('fieldset', array('id' => 'settings_user_sessions'));
        // TRANS: Fieldset legend on the sessions administration panel.
        $this->out->element('legend', null, _m('LEGEND', 'Sessions'));

        $this->out->elementStart('ul', 'form_data');

        $this->li();
        // TRANS: Checkbox title on the sessions administration panel.
        // TRANS: Indicates if StatusNet should handle session administration.
        $this->out->checkbox(
            'handle',
            _('Handle sessions'),
            (bool) $this->value('handle', 'sessions'),
            // TRANS: Checkbox title on the sessions administration panel.
            // TRANS: Indicates if StatusNet should handle session administration.
            _('Handle sessions ourselves.')
        );
        $this->unli();

        $this->li();
        // TRANS: Checkbox label on the sessions administration panel.
        // TRANS: Indicates if StatusNet should write session debugging output.
        $this->out->checkbox(
            'debug',
            _('Session debugging'),
            (bool) $this->value('debug', 'sessions'),
            // TRANS: Checkbox title on the sessions administration panel.
            _('Enable debugging output for sessions.')
        );
        $this->unli();

        $this->out->elementEnd('ul');

        $this->out->elementEnd('fieldset');
    }

    /**
     * Action elements
     *
     * @return void
     */
    public function formActions()
    {
        $this->out->submit(
            'submit',
            // TRANS: Submit button text on the sessions administration panel.
            _m('BUTTON', 'Save'),
            'submit',
            null,
            // TRANS: Title for submit button on the sessions administration panel.
            _('Save session settings')
        );
    }
}