<?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/>.

/**
 * Displays the Single view
 *
 * @package   gradereport_singleview
 * @copyright 2014 Moodle Pty Ltd (http://moodle.com)
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

define('NO_OUTPUT_BUFFERING', true);

require_once('../../../config.php');
require_once($CFG->dirroot.'/lib/gradelib.php');
require_once($CFG->dirroot.'/grade/lib.php');

< require_once($CFG->dirroot.'/grade/report/singleview/lib.php');



> require_once($CFG->dirroot.'/grade/report/lib.php');



$courseid = required_param('id', PARAM_INT);
$groupid  = optional_param('group', null, PARAM_INT);

// Making this work with profile reports.
$userid   = optional_param('userid', null, PARAM_INT);

< 
< $defaulttype = $userid ? 'user' : 'select';
< 


$itemid = optional_param('itemid', null, PARAM_INT);

< $itemtype = optional_param('item', $defaulttype, PARAM_TEXT);



> $itemtype = optional_param('item', null, PARAM_TEXT);


$page = optional_param('page', 0, PARAM_INT);
$perpage = optional_param('perpage', 100, PARAM_INT);


< if (empty($itemid)) {
<     $itemid = $userid;
<     $itemtype = $defaulttype;
< }



> $edit = optional_param('edit', -1, PARAM_BOOL); // Sticky editing mode.




< $courseparams = array('id' => $courseid);
< $pageparams = array(
<         'id'        => $courseid,
<         'group'     => $groupid,
<         'userid'    => $userid,
<         'itemid'    => $itemid,
<         'item'      => $itemtype,
<         'page'      => $page,
<         'perpage'   => $perpage,
<     );
< $PAGE->set_url(new moodle_url('/grade/report/singleview/index.php', $pageparams));
< $PAGE->set_pagelayout('incourse');



> $courseparams = ['id' => $courseid];
> 
> $PAGE->set_pagelayout('report');
> $PAGE->set_other_editing_capability('moodle/grade:edit');



if (!$course = $DB->get_record('course', $courseparams)) {

<     print_error('invalidcourseid');



>     throw new \moodle_exception('invalidcourseid');


}

require_login($course);


< if (!in_array($itemtype, gradereport_singleview::valid_screens())) {
<     print_error('notvalid', 'gradereport_singleview', '', $itemtype);
< }
< 


$context = context_course::instance($course->id);

// This is the normal requirements.
require_capability('gradereport/singleview:view', $context);
require_capability('moodle/grade:viewall', $context);
require_capability('moodle/grade:edit', $context);


< $gpr = new grade_plugin_return(array(



> $gpr = new grade_plugin_return([


    'type' => 'report',
    'plugin' => 'singleview',
    'courseid' => $courseid

< ));



> ]);



// Last selected report session tracking.
if (!isset($USER->grade_last_report)) {

<     $USER->grade_last_report = array();



>     $USER->grade_last_report = [];


}
$USER->grade_last_report[$course->id] = 'singleview';

> // If the item type is not explicitly defined or not valid, try to use the last viewed one (obtain in from the session)

> // or fallback to the user select (zero) state.
// First make sure we have proper final grades.
> if (!$itemtype || !in_array($itemtype, \gradereport_singleview\report\singleview::valid_screens())) {
grade_regrade_final_grades_if_required($course);
>     $itemtype = isset($SESSION->gradereport_singleview["itemtype-{$context->id}"]) ?

>         $SESSION->gradereport_singleview["itemtype-{$context->id}"] : 'user_select';
$report = new gradereport_singleview($courseid, $gpr, $context, $itemtype, $itemid);
> }

> 
$reportname = $report->screen->heading();
> $currentgroup = $gpr->groupid;

> // To make some other functions work better later.
$pluginname = get_string('pluginname', 'gradereport_singleview');
> if (!$currentgroup) {

>     $currentgroup = null;
$pageparams = array(
> }
    'id' => $courseid,
> 
    'itemid' => $itemid,
> $lastvieweduseritemid = $SESSION->gradereport_singleview["useritem-{$context->id}"] ?? null;
    'item' => $itemtype,
> $lastviewedgradeitemid = $SESSION->gradereport_singleview["gradeitem-{$context->id}"] ?? null;
    'userid' => $userid,
> 
    'group' => $groupid,
> switch ($itemtype) {
    'page' => $page,
>     case 'user_select':
    'perpage' => $perpage
>         // If there is a stored user item (last viewed) in a session variable, bypass the user select zero state
);
>         // and display this user item. Also, make sure that the stored last viewed user is part of the current

>         // list of gradable users in this course.
$currentpage = new moodle_url('/grade/report/singleview/index.php', $pageparams);
>         if ($lastvieweduseritemid &&

>                 array_key_exists($lastvieweduseritemid, grade_report::get_gradable_users($courseid, $currentgroup))) {
if ($data = data_submitted()) {
>             $itemtype = 'user';
    $PAGE->set_pagelayout('redirect');
>             $itemid = $lastvieweduseritemid;
    $PAGE->set_title(get_string('savegrades', 'gradereport_singleview'));
>         } else {
    echo $OUTPUT->header();
>             $itemid = null;

>         }
    require_sesskey(); // Must have a sesskey for all actions.
>         break;
    $result = $report->process_data($data);
>     case 'user':

>         if (is_null($itemid)) {
    if (!empty($result->warnings)) {
>             $itemid = $userid ?? $lastvieweduseritemid;
        foreach ($result->warnings as $warning) {
>         }
            echo $OUTPUT->notification($warning);
>         // If the item id (user id) cannot be defined or the user id is not part of the list of gradable users,
        }
>         // display the user select zero state.
    }
>         if (is_null($itemid) || !array_key_exists($itemid, grade_report::get_gradable_users($courseid, $currentgroup))) {
    echo $OUTPUT->notification(
>             $itemtype = 'user_select';
        get_string('savegradessuccess', 'gradereport_singleview', count ((array)$result->changecount)),
>         }
        'success'
>         break;
    );
>     case 'grade_select':
    echo $OUTPUT->continue_button($currentpage);
>         // If there is a stored grade item (last viewed) in a session variable, bypass the grade item select zero state
    echo $OUTPUT->footer();
>         // and display this grade item.
    die();
>         if ($lastviewedgradeitemid) {
}
>             $itemtype = 'grade';

>             $itemid = $lastviewedgradeitemid;
$PAGE->set_pagelayout('report');
>         } else {
if ($itemtype == 'user') {
>             $itemid = null;
    print_grade_page_head($course->id, 'report', 'singleview', $reportname, false, false, true, null, null, $report->screen->item);
>         }
} else {
>         break;
    print_grade_page_head($course->id, 'report', 'singleview', $reportname);
>     case 'grade':
}
>         // If there is a stored grade item (last viewed) in a session variable, use it.

>         if (is_null($itemid) && $lastviewedgradeitemid) {
$graderrightnav = $graderleftnav = null;
>             $itemid = $lastviewedgradeitemid;

>         }
$options = $report->screen->options();
>         $gtree = new grade_tree($courseid, false, false, null, !$CFG->enableoutcomes);

>         $gradeableitems = $gtree->get_items();
if (!empty($options)) {
>         // The item id (grade item id) cannot be defined, display the grade select zero state.

>         if (is_null($itemid) || !array_key_exists($itemid, $gtree->get_items())) {
    $optionkeys = array_keys($options);
>             $itemtype = 'grade_select';
    $optionitemid = array_shift($optionkeys);
>         }

>         break;
    $relreport = new gradereport_singleview(
> }



< // First make sure we have proper final grades.
< grade_regrade_final_grades_if_required($course);
< 
< $report = new gradereport_singleview($courseid, $gpr, $context, $itemtype, $itemid);
< 
< $reportname = $report->screen->heading();
< 
< $pluginname = get_string('pluginname', 'gradereport_singleview');



> $report = new gradereport_singleview\report\singleview($courseid, $gpr, $context, $itemtype, $itemid);



< $pageparams = array(



> $pageparams = [


        $navparams['itemid'] = $reloptionssorting[$i - 1];

>     'userid'    => $userid,



<     'userid' => $userid,
<     'group' => $groupid,



<     'perpage' => $perpage
< );
< 
< $currentpage = new moodle_url('/grade/report/singleview/index.php', $pageparams);



>     'perpage'   => $perpage,
> ];



< if ($data = data_submitted()) {
<     $PAGE->set_pagelayout('redirect');
<     $PAGE->set_title(get_string('savegrades', 'gradereport_singleview'));
<     echo $OUTPUT->header();



> if (!is_null($groupid)) {
>     $pageparams['group'] = $groupid;
> }



<     require_sesskey(); // Must have a sesskey for all actions.
<     $result = $report->process_data($data);



> $PAGE->set_url(new moodle_url('/grade/report/singleview/index.php', $pageparams));



<     if (!empty($result->warnings)) {
<         foreach ($result->warnings as $warning) {
<             echo $OUTPUT->notification($warning);



> // Build editing on/off button for themes that need it.
> $button = '';
> if ($PAGE->user_allowed_editing() && !$PAGE->theme->haseditswitch) {
>     if ($edit != - 1) {
>         $USER->editing = $edit;


if (!is_null($graderrightnav)) {

> 
    echo $graderrightnav;
>     // Page params for the turn editing on button.
}
>     $options = $gpr->get_options();

>     $button = $OUTPUT->edit_button(new moodle_url($PAGE->url, $options), 'get');



<     echo $OUTPUT->notification(
<         get_string('savegradessuccess', 'gradereport_singleview', count ((array)$result->changecount)),
<         'success'
<     );
<     echo $OUTPUT->continue_button($currentpage);
<     echo $OUTPUT->footer();
<     die();



> 
> $reportname = $report->screen->heading();
> 
> if ($itemtype == 'user' || $itemtype == 'user_select') {
>     $actionbar = new \gradereport_singleview\output\action_bar($context, $report, 'user');
> } else if ($itemtype == 'grade' || $itemtype == 'grade_select') {
>     $actionbar = new \gradereport_singleview\output\action_bar($context, $report, 'grade');
> } else {
>     $actionbar = new \core_grades\output\general_action_bar($context, new moodle_url('/grade/report/singleview/index.php',
>         ['id' => $courseid]), 'report', 'singleview');



< $PAGE->set_pagelayout('report');



<     print_grade_page_head($course->id, 'report', 'singleview', $reportname, false, false, true, null, null, $report->screen->item);



>     print_grade_page_head($course->id, 'report', 'singleview', $reportname, false, $button,
>         true, null, null, $report->screen->item, $actionbar);



<     print_grade_page_head($course->id, 'report', 'singleview', $reportname);



>     print_grade_page_head($course->id, 'report', 'singleview', $reportname, false, $button,
>         true, null, null, null, $actionbar);



< $graderrightnav = $graderleftnav = null;
< 
< $options = $report->screen->options();
< 
< if (!empty($options)) {
< 
<     $optionkeys = array_keys($options);
<     $optionitemid = array_shift($optionkeys);
< 
<     $relreport = new gradereport_singleview(
<                 $courseid, $gpr, $context,
<                 $report->screen->item_type(), $optionitemid
<     );
<     $reloptions = $relreport->screen->options();
<     $reloptionssorting = array_keys($relreport->screen->options());



> if ($data = data_submitted()) {
>     // Must have a sesskey for all actions.
>     require_sesskey();
>     $result = $report->process_data($data);



<     $i = array_search($itemid, $reloptionssorting);
<     $navparams = array('item' => $itemtype, 'id' => $courseid, 'group' => $groupid);
<     if ($i > 0) {
<         $navparams['itemid'] = $reloptionssorting[$i - 1];
<         $link = new moodle_url('/grade/report/singleview/index.php', $navparams);
<         $navprev = html_writer::link($link, $OUTPUT->larrow() . ' ' . $reloptions[$reloptionssorting[$i - 1]]);
<         $graderleftnav = html_writer::tag('div', $navprev, array('class' => 'itemnav previtem'));
<     }
<     if ($i < count($reloptionssorting) - 1) {
<         $navparams['itemid'] = $reloptionssorting[$i + 1];
<         $link = new moodle_url('/grade/report/singleview/index.php', $navparams);
<         $navnext = html_writer::link($link, $reloptions[$reloptionssorting[$i + 1]] . ' ' . $OUTPUT->rarrow());
<         $graderrightnav = html_writer::tag('div', $navnext, array('class' => 'itemnav nextitem'));



>     // If result is not null (because somedata was processed), warnings and success message should be displayed.
>     if (!is_null($result)) {
>         if (!empty($result->warnings)) {
>             foreach ($result->warnings as $warning) {
>                 \core\notification::add($warning);



< if (!is_null($graderleftnav)) {
<     echo $graderleftnav;
< }
< if (!is_null($graderrightnav)) {
<     echo $graderrightnav;



>         // And notify the user of the success result.
>         \core\notification::add(
>             get_string('savegradessuccess', 'gradereport_singleview', count((array) $result->changecount)),
>             \core\notification::SUCCESS
>         );



< 
< if ($report->screen->supports_paging()) {
<     echo $report->screen->pager();



< if ($report->screen->display_group_selector()) {
<     echo $report->group_selector;
< }



> // Make sure we have proper final grades.
> grade_regrade_final_grades_if_required($course);



< 
< if ($report->screen->supports_paging()) {
<     echo $report->screen->perpage_select();
<     echo $report->screen->pager();
< }
< 
< if (!is_null($graderleftnav)) {
<     echo $graderleftnav;
< }
< if (!is_null($graderrightnav)) {
<     echo $graderrightnav;



> // Save the screen state in a session variable as last viewed state.
> $SESSION->gradereport_singleview["itemtype-{$context->id}"] = $itemtype;
> if ($itemid) {
>     $SESSION->gradereport_singleview["{$itemtype}item-{$context->id}"] = $itemid;
> }
> 
> if (($itemtype !== 'select') && ($itemtype !== 'grade_select') &&($itemtype !== 'user_select')) {
>     $item = (isset($userid)) ? $userid : $itemid;
> 
>     $defaultgradeshowactiveenrol = !empty($CFG->grade_report_showonlyactiveenrol);
>     $showonlyactiveenrol = get_user_preferences('grade_report_showonlyactiveenrol', $defaultgradeshowactiveenrol);
>     $showonlyactiveenrol = $showonlyactiveenrol || !has_capability('moodle/course:viewsuspendedusers', $context);
> 
>     $gui = new graded_users_iterator($course, null, $currentgroup);
>     $gui->require_active_enrolment($showonlyactiveenrol);
>     $gui->init();
> 
>     $userreportrenderer = $PAGE->get_renderer('gradereport_singleview');
>     // Add previous/next user navigation.
>     echo $userreportrenderer->report_navigation($gpr, $courseid, $context, $report, $groupid, $itemtype, $itemid);



<     array(



>     [



<     )



>     ]