}
 
    /**
     * Check if a reference is deprecated.
     *
     * @param array|string|object $reference
     * @return bool
     */
    public static function is_deprecated(array|string|object $reference): bool {
        return self::from($reference) !== null;
    }
 
    /**
     * Emit a deprecation notice if the reference is deprecated.
     *
     * @param array|string|object $reference
     */
    public static function emit_deprecation_if_present(array|string|object $reference): void {
        if ($attribute = self::from($reference)) {
            self::emit_deprecation_notice($attribute);
        }
    }
 
    /**
     * Emit a deprecation notice for a reference.
     *
     * This will emit a deprecation notice if the reference is deprecated.
     * If the reference is not deprecated, the function will emit debugging information.
     *
     * @param array|string|object $reference
     */
    public static function emit_deprecation(array|string|object $reference): void {
        if ($attribute = self::from($reference)) {
            self::emit_deprecation_notice($attribute);
        } else {
            // If the reference is not deprecated, we should not emit a notice.
            // This is to prevent false positives in tests.
            debugging(
                "Deprecation notice requested but object is not deprecated.",
                DEBUG_DEVELOPER,

 
/**
 * Encodes file serving url
 *
 * @deprecated use moodle_url factory methods instead
 * @todo Final deprecation on Moodle 6.0. See MDL-84939.
 *
 * @param string $urlbase
 * @param string $path /filearea/itemid/dir/dir/file.exe
 * @param bool $forcedownload
 * @param bool $https https url required
 * @return string encoded file url
 */
#[\core\attribute\deprecated(
    replacement: 'core\url factory methods',
    since: '5.1',
    mdl: 'MDL-31071'
)]
function file_encode_url($urlbase, $path, $forcedownload = false, $https = false) {
    \core\deprecation::emit_deprecation_if_present(__FUNCTION__);
 
    global $CFG;
 
    if ($CFG->slasharguments) {
        $parts = explode('/', $path);
        $parts = array_map('rawurlencode', $parts);
        $path  = implode('/', $parts);
        $return = $urlbase . $path;
        if ($forcedownload) {
            $return .= '?forcedownload=1';
        }
    } else {
        $path = rawurlencode($path);
        $return = $urlbase . '?file=' . $path;
        if ($forcedownload) {
            $return .= '&forcedownload=1';
        }
    }
 
    if ($https) {

        }
    }
 
    /**
     * Return contents for the available course block on the frontpage.
     *
     * @param coursecat_helper $chelper course helper.
     * @param array $course course detials.
     *
     * @return array $data available course data.
     */
    public function available_coursebox(\coursecat_helper $chelper, $course) {
        global $CFG;
        $coursename = $chelper->get_course_formatted_name($course);
        $data['name'] = $coursename;
        $data['link'] = new \moodle_url('/course/view.php', ['id' => $course->id]);
        $noimgurl = $this->output->image_url('no-image', 'theme');
        foreach ($course->get_course_overviewfiles() as $file) {
            $isimage = $file->is_valid_image();
            $imgurl = file_encode_url("$CFG->wwwroot/pluginfile.php",
                '/'. $file->get_contextid(). '/'. $file->get_component(). '/'.
                $file->get_filearea(). $file->get_filepath(). $file->get_filename(), !$isimage);
            if (!$isimage) {
                $imgurl = $noimgurl;
            }
        }
        if (empty($imgurl)) {
            $imgurl = $noimgurl;
        }
        $data['imgurl'] = $imgurl;
        return $data;
    }
 
    /**
     * Render the template.
     *
     * @param string $template name of the template.
     * @param array $data Data.
     *
     * @return string.

                    'recursive' => true,
                    'limit' => $CFG->frontpagecourselimit,
                    'viewmoreurl' => new moodle_url('/course/index.php'),
                    'viewmoretext' => new lang_string('fulllistofcourses'),
                ]);
 
        $chelper->set_attributes(['class' => 'frontpage-course-list-all']);
        $courses = \core_course_category::top()->get_courses($chelper->get_courses_display_options());
        $totalcount = \core_course_category::top()->get_courses_count($chelper->get_courses_display_options());
        if (!$totalcount && !$this->page->user_is_editing() &&
            has_capability('moodle/course:create', \context_system::instance())) {
            // Print link to create a new course, for the 1st available category.
            return $this->add_new_course_button();
        }
        if (!empty($courses)) {
            $data = [];
            $attributes = $chelper->get_and_erase_attributes('courses');
            $content = \html_writer::start_tag('div', $attributes);
            foreach ($courses as $course) {
                $data[] = $this->available_coursebox($chelper, $course);
            }
            $totalcourse = count($data);
            $content .= $this->render_template('availablecourses', ['courses' => $data, 'totalavacount' => $totalcourse]);
            $content .= \html_writer::end_tag('div');
            $this->include_frontslide_js('availablecourses');
            return $content;
        }
    }
 
    /**
     * Return contents for the available course block on the frontpage.
     *
     * @param coursecat_helper $chelper course helper.
     * @param array $course course detials.
     *
     * @return array $data available course data.
     */
    public function available_coursebox(\coursecat_helper $chelper, $course) {
        global $CFG;
        $coursename = $chelper->get_course_formatted_name($course);

                        require_once($CFG->dirroot .'/mod/forum/lib.php');
                        if (($newsforum = forum_get_course_forum($SITE->id, 'news')) &&
                                ($forumcontents = $this->frontpage_news($newsforum))) {
                            $newsforumcm = get_fast_modinfo($SITE)->instances['forum'][$newsforum->id];
                            $output .= $this->frontpage_part('skipsitenews', 'site-news-forum',
                                $newsforumcm->get_formatted_name(), $forumcontents);
                        }
                    }
                    break;
 
                case FRONTPAGEENROLLEDCOURSELIST:
                    $mycourseshtml = $this->frontpage_my_courses();
                    if (!empty($mycourseshtml)) {
                        $output .= $this->frontpage_part('skipmycourses', 'frontpage-course-list',
                            get_string('mycourses'), $mycourseshtml);
                    }
                    break;
 
                case FRONTPAGEALLCOURSELIST:
                    $availablecourseshtml = $this->frontpage_available_courses();
                    $output .= $this->frontpage_part('skipavailablecourses', 'frontpage-available-course-list',
                        get_string('availablecourses'), $availablecourseshtml);
                    break;
 
                case FRONTPAGECATEGORYNAMES:
                    $output .= $this->frontpage_part('skipcategories', 'frontpage-category-names',
                        get_string('categories'), $this->frontpage_categories_list());
                    break;
 
                case FRONTPAGECATEGORYCOMBO:
                    $output .= $this->frontpage_part('skipcourses', 'frontpage-category-combo',
                        get_string('courses'), $this->frontpage_combo_list());
                    break;
 
                case FRONTPAGECOURSESEARCH:
                    $output .= $this->box($this->course_search_form(''), 'd-flex justify-content-center');
                    break;
                case FRONTPAGEPROMOTEDCOURSE:
                    $output .= $this->promoted_courses();
                    break;

    $editbutton = $OUTPUT->edit_button($editurl);
    $PAGE->set_button($editbutton);
}
 
echo $OUTPUT->header();
 
// Print Section or custom info.
if (!empty($CFG->customfrontpageinclude)) {
    // Pre-fill some variables that custom front page might use.
    $modnames = get_module_types_names();
    $modnamesplural = get_module_types_names(true);
    $mods = $modinfo->get_cms();
 
    include($CFG->customfrontpageinclude);
 
} else if ($siteformatoptions['numsections'] > 0) {
    echo $courserenderer->frontpage_section1();
}
 
echo $courserenderer->frontpage();
 
if ($editing && has_capability('moodle/course:create', context_system::instance())) {
    echo $courserenderer->add_new_course_button();
}
echo $OUTPUT->footer();