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| 1 | <?php |
| 2 | // This file is part of Moodle - https://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 <https://www.gnu.org/licenses/>. |
| 16 | |
| 17 | namespace local_integritycase\local; |
| 18 | |
| 19 | /** |
| 20 | * The stages a case moves through, and which moves staff may make. |
| 21 | * |
| 22 | * The student never sees a case while staff look into it. It becomes visible the first time it |
| 23 | * reaches a stage that asks something of the student or tells them a decision. |
| 24 | * |
| 25 | * @package local_integritycase |
| 26 | * @copyright 2026 DevLMS <contact@devlms.com> |
| 27 | * @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| 28 | */ |
| 29 | final class workflow { |
| 30 | /** @var string Opened, nobody has looked yet. */ |
| 31 | public const REPORTED = 'reported'; |
| 32 | /** @var string Staff are looking into it. */ |
| 33 | public const INVESTIGATING = 'investigating'; |
| 34 | /** @var string The student has been asked for their side. */ |
| 35 | public const AWAITING = 'awaitingresponse'; |
| 36 | /** @var string An outcome has been recorded. */ |
| 37 | public const DECIDED = 'decided'; |
| 38 | /** @var string The student appealed the decision. */ |
| 39 | public const APPEALED = 'appealed'; |
| 40 | /** @var string Finished. */ |
| 41 | public const CLOSED = 'closed'; |
| 42 | |
| 43 | /** @var array<string, string[]> Moves staff may make from each stage. Appeals are the student's. */ |
| 44 | private const MOVES = [ |
| 45 | self::REPORTED => [self::INVESTIGATING, self::CLOSED], |
| 46 | self::INVESTIGATING => [self::AWAITING, self::DECIDED, self::CLOSED], |
| 47 | self::AWAITING => [self::INVESTIGATING, self::DECIDED, self::CLOSED], |
| 48 | self::DECIDED => [self::INVESTIGATING, self::CLOSED], |
| 49 | self::APPEALED => [self::DECIDED, self::CLOSED], |
| 50 | self::CLOSED => [self::INVESTIGATING], |
| 51 | ]; |
| 52 | |
| 53 | /** @var string[] Possible decisions. */ |
| 54 | private const OUTCOMES = ['nocase', 'warning', 'resubmit', 'markreduced', 'referred']; |
| 55 | |
| 56 | /** |
| 57 | * All stages, in order. |
| 58 | * |
| 59 | * @return string[] |
| 60 | */ |
| 61 | public static function stages(): array { |
| 62 | return array_keys(self::MOVES); |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Stages staff can move a case to from this one. |
| 67 | * |
| 68 | * @param string $stage |
| 69 | * @return string[] |
| 70 | */ |
| 71 | public static function next_stages(string $stage): array { |
| 72 | return self::MOVES[$stage] ?? []; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Whether staff can move a case between these stages. |
| 77 | * |
| 78 | * @param string $from |
| 79 | * @param string $to |
| 80 | * @return bool |
| 81 | */ |
| 82 | public static function can_move(string $from, string $to): bool { |
| 83 | return in_array($to, self::next_stages($from), true); |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Whether reaching this stage makes the case visible to the student. |
| 88 | * |
| 89 | * @param string $stage |
| 90 | * @return bool |
| 91 | */ |
| 92 | public static function reveals(string $stage): bool { |
| 93 | return $stage === self::AWAITING || $stage === self::DECIDED; |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Possible decisions. |
| 98 | * |
| 99 | * @return string[] |
| 100 | */ |
| 101 | public static function outcomes(): array { |
| 102 | return self::OUTCOMES; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Whether this is a known decision. |
| 107 | * |
| 108 | * @param string $outcome |
| 109 | * @return bool |
| 110 | */ |
| 111 | public static function is_outcome(string $outcome): bool { |
| 112 | return in_array($outcome, self::OUTCOMES, true); |
| 113 | } |
| 114 | } |