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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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namespace mod_bigbluebuttonbn\output;
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use core\check\result;
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use core\output\notification;
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use mod_bigbluebuttonbn\instance;
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use mod_bigbluebuttonbn\local\config;
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use mod_bigbluebuttonbn\local\proxy\bigbluebutton_proxy;
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use mod_bigbluebuttonbn\meeting;
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use renderable;
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use renderer_base;
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use stdClass;
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use templatable;
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use tool_task\check\cronrunning;
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/**
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 * View Page template renderable.
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 *
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 * @package   mod_bigbluebuttonbn
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 * @copyright 2021 Andrew Lyons <andrew@nicols.co.uk>
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 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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class view_page implements renderable, templatable {
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    /** @var instance The instance being rendered */
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    protected $instance;
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    /**
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     * Constructor for the View Page.
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     *
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     * @param instance $instance
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     */
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    public function __construct(instance $instance) {
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        $this->instance = $instance;
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    }
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    /**
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     * Export the content required to render the template.
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     *
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     * @param renderer_base $output
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     * @return stdClass
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     */
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    public function export_for_template(renderer_base $output): stdClass {
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        $pollinterval = bigbluebutton_proxy::get_poll_interval();
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        $templatedata = (object) [
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            'instanceid' => $this->instance->get_instance_id(),
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            'pollinterval' => $pollinterval * 1000, // Javascript poll interval is in miliseconds.
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            'groupselector' => $output->render_groups_selector($this->instance),
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            'meetingname' => $this->instance->get_meeting_name(),
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            'description' => $this->instance->get_meeting_description(true),
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            'joinurl' => $this->instance->get_join_url(),
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        ];
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        $viewwarningmessage = config::get('general_warning_message');
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        if ($this->show_view_warning() && !empty($viewwarningmessage)) {
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            $templatedata->sitenotification = (object) [
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                'message' => $viewwarningmessage,
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                'type' => config::get('general_warning_box_type'),
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                'icon' => [
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                    'pix' => 'i/bullhorn',
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                    'component' => 'core',
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                ],
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            ];
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            if ($url = config::get('general_warning_button_href')) {
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                $templatedata->sitenotification->actions = [[
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                    'url' => $url,
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                    'title' => config::get('general_warning_button_text'),
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                ]];
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            }
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        }
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        if ($this->instance->is_feature_enabled('showroom')) {
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            $roomdata = meeting::get_meeting_info_for_instance($this->instance);
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            $roomdata->haspresentations = false;
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            if (!empty($roomdata->presentations)) {
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                $roomdata->haspresentations = true;
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            }
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            $templatedata->room = $roomdata;
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        }
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        $templatedata->recordingwarnings = [];
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        $check = new cronrunning();
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        $result = $check->get_result();
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        if ($result->get_status() != result::OK && $this->instance->is_moderator()) {
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            $templatedata->recordingwarnings[] = (new notification(
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                get_string('view_message_cron_disabled', 'mod_bigbluebuttonbn',
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                    $result->get_summary()),
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                notification::NOTIFY_ERROR,
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                false
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            ))->export_for_template($output);
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        }
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        if ($this->instance->is_feature_enabled('showrecordings') && $this->instance->is_recorded()) {
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            $recordings = new recordings_session($this->instance);
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            $templatedata->recordings = $recordings->export_for_template($output);
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        } else if ($this->instance->is_type_recordings_only()) {
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            $templatedata->recordingwarnings[] = (new notification(
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                get_string('view_message_recordings_disabled', 'mod_bigbluebuttonbn'),
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                notification::NOTIFY_WARNING,
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                false
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            ))->export_for_template($output);
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        }
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        return $templatedata;
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    }
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    /**
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     * Whether to show the view warning.
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     *
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     * @return bool
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     */
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    protected function show_view_warning(): bool {
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        if ($this->instance->is_admin()) {
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            return true;
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        }
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        $generalwarningroles = explode(',', config::get('general_warning_roles'));
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        $userroles = \mod_bigbluebuttonbn\local\helpers\roles::get_user_roles(
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            $this->instance->get_context(),
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            $this->instance->get_user_id()
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        );
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        foreach ($userroles as $userrole) {
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            if (in_array($userrole->shortname, $generalwarningroles)) {
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                return true;
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            }
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        }
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        return false;
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    }
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}