1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * Contains the class for fetching the important dates in mod_assign for a given module instance and a user.
19 *
20 * @package   mod_assign
21 * @copyright 2021 Shamim Rezaie <shamim@moodle.com>
22 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24
25declare(strict_types=1);
26
27namespace mod_assign;
28
29use core\activity_dates;
30
31/**
32 * Class for fetching the important dates in mod_assign for a given module instance and a user.
33 *
34 * @copyright 2021 Shamim Rezaie <shamim@moodle.com>
35 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
36 */
37class dates extends activity_dates {
38
39    /**
40     * Returns a list of important dates in mod_assign
41     *
42     * @return array
43     */
44    protected function get_dates(): array {
45        global $CFG;
46
47        require_once($CFG->dirroot . '/mod/assign/locallib.php');
48
49        $course = get_course($this->cm->course);
50        $context = \context_module::instance($this->cm->id);
51        $assign = new \assign($context, $this->cm, $course);
52
53        $timeopen = $this->cm->customdata['allowsubmissionsfromdate'] ?? null;
54        $timedue = $this->cm->customdata['duedate'] ?? null;
55
56        $activitygroup = groups_get_activity_group($this->cm, true);
57        if ($activitygroup) {
58            if ($assign->can_view_grades()) {
59                $groupoverride = \cache::make('mod_assign', 'overrides')->get("{$this->cm->instance}_g_{$activitygroup}");
60                if (!empty($groupoverride->allowsubmissionsfromdate)) {
61                    $timeopen = $groupoverride->allowsubmissionsfromdate;
62                }
63                if (!empty($groupoverride->duedate)) {
64                    $timedue = $groupoverride->duedate;
65                }
66            }
67        }
68
69        $now = time();
70        $dates = [];
71
72        if ($timeopen) {
73            $openlabelid = $timeopen > $now ? 'activitydate:submissionsopen' : 'activitydate:submissionsopened';
74            $date = [
75                'label' => get_string($openlabelid, 'mod_assign'),
76                'timestamp' => (int) $timeopen,
77            ];
78            if ($course->relativedatesmode && $assign->can_view_grades()) {
79                $date['relativeto'] = $course->startdate;
80            }
81            $dates[] = $date;
82        }
83
84        if ($timedue) {
85            $date = [
86                'label' => get_string('activitydate:submissionsdue', 'mod_assign'),
87                'timestamp' => (int) $timedue,
88            ];
89            if ($course->relativedatesmode && $assign->can_view_grades()) {
90                $date['relativeto'] = $course->startdate;
91            }
92            $dates[] = $date;
93        }
94
95        return $dates;
96    }
97}
98