<?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/>.

/**
 * Renderer for the grade user report
 *
 * @package   gradereport_user
 * @copyright 2010 Sam Hemelryk
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

/**
 * Custom renderer for the user grade report
 *
 * To get an instance of this use the following code:
 * $renderer = $PAGE->get_renderer('gradereport_user');
 *
 * @copyright 2010 Sam Hemelryk
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class gradereport_user_renderer extends plugin_renderer_base {


<     public function graded_users_selector($report, $course, $userid, $groupid, $includeall) {
<         global $USER;



>     /**
>      * Small rendering function that helps with outputting the relevant user selector.
>      *
>      * @param string $report
>      * @param stdClass $course
>      * @param int $userid
>      * @param null|int $groupid
>      * @param bool $includeall
>      * @return string The raw HTML to render.
>      * @throws coding_exception
>      */
>     public function graded_users_selector(string $report, stdClass $course, int $userid, ?int $groupid, bool $includeall): string {



        $select = grade_get_graded_users_select($report, $course, $userid, $groupid, $includeall);

<         $output = html_writer::tag('div', $this->output->render($select), array('id'=>'graded_users_selector'));
<         $output .= html_writer::tag('p', '', array('style'=>'page-break-after: always;'));



>         $output = html_writer::tag('div', $this->output->render($select), ['id' => 'graded_users_selector']);
>         $output .= html_writer::tag('p', '', ['style' => 'page-break-after: always;']);



        return $output;
    }

    /**
     * Creates and renders the single select box for the user view.
     *
     * @param int $userid The selected userid
     * @param int $userview The current view user setting constant
     * @return string
     */

<     public function view_user_selector($userid, $userview) {



>     public function view_user_selector(int $userid, int $userview): string {


        global $USER;
        $url = $this->page->url;
        if ($userid != $USER->id) {
            $url->param('userid', $userid);
        }


<         $options = array(GRADE_REPORT_USER_VIEW_USER => get_string('otheruser', 'gradereport_user'),
<                 GRADE_REPORT_USER_VIEW_SELF => get_string('myself', 'gradereport_user'));



>         $options = [
>             GRADE_REPORT_USER_VIEW_USER => get_string('otheruser', 'grades'),
>             GRADE_REPORT_USER_VIEW_SELF => get_string('myself', 'grades')
>         ];


        $select = new single_select($url, 'userview', $options, $userview, null);


<         $select->label = get_string('viewas', 'gradereport_user');



>         $select->label = get_string('viewas', 'grades');




<         $output = html_writer::tag('div', $this->output->render($select), array('class' => 'view_users_selector'));



>         $output = html_writer::tag('div', $this->output->render($select), ['class' => 'view_users_selector']);



        return $output;
    }


>     /**
}
>      * Renders the user selector trigger element.
>      *
>      * @param object $course The course object.
>      * @param int|null $userid The user ID.
>      * @param int|null $groupid The group ID.
>      * @return string The raw HTML to render.
>      * @throws coding_exception
>      */
>     public function users_selector(object $course, ?int $userid = null, ?int $groupid = null): string {
> 
>         $data = [
>             'courseid' => $course->id,
>             'groupid' => $groupid ?? 0,
>         ];
> 
>         // If a particular option is selected (not in zero state).
>         if (!is_null($userid)) {
>             if ($userid) { // A single user selected.
>                 $user = core_user::get_user($userid);
>                 $data['selectedoption'] = [
>                     'image' => $this->user_picture($user, ['size' => 40, 'link' => false]),
>                     'text' => fullname($user),
>                     'additionaltext' => $user->email,
>                 ];
>             } else { // All users selected.
>                 // Get the total number of users.
>                 $defaultgradeshowactiveenrol = !empty($CFG->grade_report_showonlyactiveenrol);
>                 $showonlyactiveenrol = get_user_preferences('grade_report_showonlyactiveenrol', $defaultgradeshowactiveenrol);
>                 $showonlyactiveenrol = $showonlyactiveenrol ||
>                     !has_capability('moodle/course:viewsuspendedusers', context_course::instance($course->id));
>                 $gui = new graded_users_iterator($course, null, $groupid);
>                 $gui->require_active_enrolment($showonlyactiveenrol);
>                 $gui->init();
>                 $totalusersnum = 0;
>                 while ($userdata = $gui->next_user()) {
>                     $totalusersnum++;
>                 }
>                 $gui->close();
> 
>                 $data['selectedoption'] = [
>                     'text' => get_string('allusersnum', 'gradereport_user', $totalusersnum),
>                 ];
>             }
>         }
> 
>         $this->page->requires->js_call_amd('gradereport_user/user', 'init');
>         return $this->render_from_template('core_grades/user_selector', $data);
>     }
> 
>     /**
>      * Creates and renders previous/next user navigation.
>      *
>      * @param graded_users_iterator $gui Objects that is used to iterate over a list of gradable users in the course.
>      * @param int $userid The ID of the current user.
>      * @param int $courseid The course ID.
>      * @return string The raw HTML to render.
>      */
>     public function user_navigation(graded_users_iterator $gui, int $userid, int $courseid): string {
> 
>         $navigationdata = [];
> 
>         $users = [];
>         while ($userdata = $gui->next_user()) {
>             $users[$userdata->user->id] = $userdata->user;
>         }
>         $gui->close();
> 
>         $arraykeys = array_keys($users);
>         $keynumber = array_search($userid, $arraykeys);
> 
>         // Without a valid user or users list, there's nothing to render.
>         if ($keynumber === false) {
>             return '';
>         }
> 
>         // Determine directionality so that icons can be modified to suit language.
>         $previousarrow = right_to_left() ? 'right' : 'left';
>         $nextarrow = right_to_left() ? 'left' : 'right';
> 
>         // If the current user is not the first one in the list, find and render the previous user.
>         if ($keynumber !== 0) {
>             $previoususer = $users[$arraykeys[$keynumber - 1]];
>             $navigationdata['previoususer'] = [
>                 'name' => fullname($previoususer),
>                 'url' => (new moodle_url('/grade/report/user/index.php', ['id' => $courseid, 'userid' => $previoususer->id]))
>                     ->out(false),
>                 'previousarrow' => $previousarrow
>             ];
>         }
>         // If the current user is not the last one in the list, find and render the last user.
>         if ($keynumber < count($users) - 1) {
>             $nextuser = $users[$arraykeys[$keynumber + 1]];
>             $navigationdata['nextuser'] = [
>                 'name' => fullname($nextuser),
>                 'url' => (new moodle_url('/grade/report/user/index.php', ['id' => $courseid, 'userid' => $nextuser->id]))
>                     ->out(false),
>                 'nextarrow' => $nextarrow
>             ];
>         }
> 
>         return $this->render_from_template('gradereport_user/user_navigation', $navigationdata);
>     }
> 
>     /**
>      * Creates and renders 'view report as' selector element.
>      *
>      * @param int $userid The selected userid
>      * @param int $userview The current view user setting constant
>      * @param int $courseid The course ID.
>      * @return string The raw HTML to render.
>      */
>     public function view_mode_selector(int $userid, int $userview, int $courseid): string {
> 
>         $viewasotheruser = new moodle_url('/grade/report/user/index.php', ['id' => $courseid, 'userid' => $userid,
>             'userview' => GRADE_REPORT_USER_VIEW_USER]);
>         $viewasmyself = new moodle_url('/grade/report/user/index.php', ['id' => $courseid, 'userid' => $userid,
>             'userview' => GRADE_REPORT_USER_VIEW_SELF]);
> 
>         $selectoroptions = [
>             $viewasotheruser->out(false) => get_string('otheruser', 'core_grades'),
>             $viewasmyself->out(false) => get_string('myself', 'core_grades')
>         ];
> 
>         $selectoractiveurl = $userview === GRADE_REPORT_USER_VIEW_USER ? $viewasotheruser : $viewasmyself;
> 
>         $viewasselect = new \core\output\select_menu('viewas', $selectoroptions, $selectoractiveurl->out(false));
>         $viewasselect->set_label(get_string('viewas', 'core_grades'));
> 
>         return $this->render_from_template('gradereport_user/view_mode_selector',
>             $viewasselect->export_for_template($this));
>     }