<?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/>.

/**
 * The gradebook simple view - initial view to select your search options
 *
 * @package   gradereport_singleview
 * @copyright 2014 Moodle Pty Ltd (http://moodle.com)
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace gradereport_singleview\local\screen;

use gradereport_singleview;
use moodle_url;

defined('MOODLE_INTERNAL') || die;

/**
 * The gradebook simple view - initial view to select your search options
 *
 * @package   gradereport_singleview
 * @copyright 2014 Moodle Pty Ltd (http://moodle.com)
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class select extends screen {

    /**
     * Initialise this screen
     *
     * @param bool $selfitemisempty Has an item been selected (will be false)
     */
    public function init($selfitemisempty = false) {
        global $DB;

        $roleids = explode(',', get_config('moodle', 'gradebookroles'));


<         $this->items = array();



>         $this->items = [];


        foreach ($roleids as $roleid) {
            // Keeping the first user appearance.
            $this->items = $this->items + get_role_users(
                $roleid, $this->context, false, '',
                'u.id, u.lastname, u.firstname', null, $this->groupid,
                $this->perpage * $this->page, $this->perpage
            );
        }

<         $this->item = $DB->get_record('course', array('id' => $this->courseid));



>         $this->item = $DB->get_record('course', ['id' => $this->courseid]);


    }

    /**
     * Get the type of items on this screen, not valid so return false.
     *

<      * @return bool



>      * @return string|null


     */

<     public function item_type() {



>     public function item_type(): ?string {


        return false;
    }

    /**
     * Return the HTML for the page.
     *
     * @return string
     */

<     public function html() {
<         global $OUTPUT;



>     public function html(): string {
>         global $OUTPUT, $COURSE;
> 
>         if ($this->itemid === null) {
>             $userlink = new \moodle_url('/grade/report/singleview/index.php', ['id' => $COURSE->id, 'item' => 'user_select']);
>             $gradelink = new \moodle_url('/grade/report/singleview/index.php', ['id' => $COURSE->id, 'item' => 'grade_select']);
>             $context = [
>                 'courseid' => $COURSE->id,
>                 'imglink' => $OUTPUT->image_url('zero_state', 'gradereport_singleview'),
>                 'userzerolink' => $userlink->out(false),
>                 'userselectactive' => false,
>                 'gradezerolink' => $gradelink->out(false),
>                 'gradeselectactive' => false,
>                 'displaylabel' => false
>             ];
>             return $OUTPUT->render_from_template('gradereport_singleview/zero_state', $context);
>         }



        $html = '';


<         $types = gradereport_singleview::valid_screens();



>         $types = gradereport_singleview\report\singleview::valid_screens();



        foreach ($types as $type) {
            $classname = "gradereport_singleview\\local\\screen\\${type}";

            $screen = new $classname($this->courseid, null, $this->groupid);

            if (!$screen instanceof selectable_items) {
                continue;
            }

            $options = $screen->options();

            if (empty($options)) {
                continue;
            }


<             $params = array(



>             $params = [


                'id' => $this->courseid,
                'item' => $screen->item_type(),
                'group' => $this->groupid

<             );



>             ];



            $url = new moodle_url('/grade/report/singleview/index.php', $params);


<             $select = new \single_select($url, 'itemid', $options, '', array('' => $screen->select_label()));
<             $select->set_label($screen->select_label(), array('class'=>'accesshide'));



>             $select = new \single_select($url, 'itemid', $options, '', ['' => $screen->select_label()]);
>             $select->set_label($screen->select_label(), ['class' => 'accesshide']);


            $html .= $OUTPUT->render($select);
        }
        $html = $OUTPUT->container($html, 'selectitems');

        if (empty($html)) {
            $OUTPUT->notification(get_string('noscreens', 'gradereport_singleview'));
        }

        return $html;
    }

    /**
     * Should we show the next prev selector?
     * @return bool
     */

<     public function supports_next_prev() {



>     public function supports_next_prev(): bool {
>         return false;
>     }
> 
>     /**
>      * Should we show the base singlereport group selector?
>      * @return bool
>      */
>     public function display_group_selector(): bool {
>         if ($this->itemid === null) {
>             return false;
>         }
>         return true;
>     }
> 
>     /**
>      * Get the heading for the screen.
>      *
>      * @return string
>      */
>     public function heading(): string {
>         return ' ';
>     }
> 
>     /**
>      * Does this screen support paging?
>      *
>      * @return bool
>      */
>     public function supports_paging(): bool {


        return false;
    }
}