lib.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Local coodle lib hooks
 * @package    local_coodle
 * @copyright  2022 Wunderbyte GmbH
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/**
 * Renders the popup.
 *
 * @param renderer_base $renderer
 * @return string The HTML
 */
function local_coodle_render_navbar_output(\renderer_base $renderer) {

    // Early bail out conditions.
    if (!isloggedin() || isguestuser() ||
    (!is_siteadmin() && !local_coodle\advisor::is_advisor())) {
        return;
    }

    global $OUTPUT, $PAGE;
    $templatedata = ['image' => $OUTPUT->image_url('coodle', 'local_coodle')];
    $nav = $OUTPUT->render_from_template('local_coodle/navicon', $templatedata);

    if (get_config('local_coodle', 'calendaronlyallowintervalls')) {
        $PAGE->requires->js_call_amd('local_coodle/calendarinterval', 'init');
    }
    return $nav;
}

/**
 * Serves the logo file settings.
 *
 * @param   stdClass $course course object
 * @param   stdClass $cm course module object
 * @param   stdClass $context context object
 * @param   string $filearea file area
 * @param   array $args extra arguments
 * @param   bool $forcedownload whether or not force download
 * @param   array $options additional options affecting the file serving
 * @return  bool false|void
 */
function local_coodle_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = []) {
    if ($context->contextlevel != CONTEXT_SYSTEM && $context->contextlevel != CONTEXT_USER) {
         return false;
    }

    if ($filearea !== 'clientfiles' && $filearea !== 'vorlagen' &&  $filearea !== 'clientfile' && $filearea !== 'direction') {
        return false;
    }

    global $USER;

    // Check if user can view file
    $itemid = array_shift($args);
    // Extract the filename / filepath from the $args array.
    $filename = array_pop($args);
    if ($filearea == 'clientfiles' && $args[0] > 0) {
        if (!$USER->id == $args[0] && ! \local_coodle\advisor::is_advisor_from($args[0], $USER->id)) {
            return;
        }
    }
    if (!$args) {
        $filepath = '/';
    } else {
        $filepath = '/' . implode('/', $args) . '/';
    }

    // TODO if user = itemid?
    // or is advisor user?

    // Retrieve the file from the Files API.

    $fs = get_file_storage();
    $file = $fs->get_file($context->id, 'local_coodle', $filearea, $itemid, $filepath, $filename);
    if (!$file) {
        return false; // The file does not exist.
    }

    send_stored_file($file, null, 0, $forcedownload, $options);
}