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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 tool_autoflow\external; |
| 18 | |
| 19 | use core_external\external_api; |
| 20 | use core_external\external_function_parameters; |
| 21 | use core_external\external_single_structure; |
| 22 | use core_external\external_value; |
| 23 | use tool_autoflow\local\node_catalogue; |
| 24 | use tool_autoflow\local\workflow_store; |
| 25 | |
| 26 | /** |
| 27 | * Everything the editor needs to open a workflow: the workflow, the node palette, |
| 28 | * the event and function lists and the interface strings. |
| 29 | * |
| 30 | * @package tool_autoflow |
| 31 | * @copyright 2026 DevLMS <contact@devlms.com> |
| 32 | * @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| 33 | */ |
| 34 | class get_editor extends external_api { |
| 35 | /** Strings the editor shows, by key. */ |
| 36 | private const STRINGS = ['save', 'saved', 'runnow', 'runqueued', 'enabled', 'workflowname', 'palette', 'nodesettings', |
| 37 | 'selectnode', 'deletenode', 'problems', 'saving', 'savefailed', 'branch:true', 'branch:false', 'choose', 'workflowruns', |
| 38 | 'cat:trigger', 'cat:logic', 'cat:action', 'cat:moodle', 'error:notrigger', 'error:manytriggers', 'error:duplicateid', |
| 39 | 'error:danglingedge', 'error:cycle', 'error:unreachable', 'invalidjson', 'runsas', 'runasuserid']; |
| 40 | |
| 41 | /** |
| 42 | * Parameters. |
| 43 | * |
| 44 | * @return external_function_parameters |
| 45 | */ |
| 46 | public static function execute_parameters(): external_function_parameters { |
| 47 | return new external_function_parameters([ |
| 48 | 'workflowid' => new external_value(PARAM_INT, 'Workflow id, 0 for a new workflow'), |
| 49 | ]); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Load the editor data. |
| 54 | * |
| 55 | * @param int $workflowid |
| 56 | * @return array |
| 57 | */ |
| 58 | public static function execute(int $workflowid): array { |
| 59 | ['workflowid' => $workflowid] = self::validate_parameters(self::execute_parameters(), ['workflowid' => $workflowid]); |
| 60 | $context = \context_system::instance(); |
| 61 | self::validate_context($context); |
| 62 | require_capability('tool/autoflow:manage', $context); |
| 63 | |
| 64 | global $USER; |
| 65 | $workflow = $workflowid ? workflow_store::get($workflowid) |
| 66 | : (object) ['id' => 0, 'name' => '', 'enabled' => 0, 'graph' => json_encode(['nodes' => [], 'edges' => []]), |
| 67 | 'runasuserid' => $USER->id]; |
| 68 | $runas = \core_user::get_user((int) $workflow->runasuserid) ?: $USER; |
| 69 | $strings = []; |
| 70 | foreach (self::STRINGS as $key) { |
| 71 | $strings[$key] = get_string($key, 'tool_autoflow'); |
| 72 | } |
| 73 | return [ |
| 74 | 'id' => (int) $workflow->id, |
| 75 | 'name' => $workflow->name, |
| 76 | 'enabled' => (bool) $workflow->enabled, |
| 77 | 'graph' => $workflow->graph, |
| 78 | 'nodetypes' => json_encode(node_catalogue::describe()), |
| 79 | 'events' => json_encode(node_catalogue::events()), |
| 80 | 'functions' => json_encode(node_catalogue::functions()), |
| 81 | 'strings' => json_encode($strings), |
| 82 | 'runasuserid' => (int) $runas->id, |
| 83 | 'runasname' => fullname($runas), |
| 84 | 'canchooserunas' => has_capability('moodle/user:loginas', $context), |
| 85 | ]; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Return structure. Graph, palette, events and strings travel as JSON text. |
| 90 | * |
| 91 | * @return external_single_structure |
| 92 | */ |
| 93 | public static function execute_returns(): external_single_structure { |
| 94 | return new external_single_structure([ |
| 95 | 'id' => new external_value(PARAM_INT, 'Workflow id, 0 when new'), |
| 96 | 'name' => new external_value(PARAM_TEXT, 'Name'), |
| 97 | 'enabled' => new external_value(PARAM_BOOL, 'Enabled'), |
| 98 | 'graph' => new external_value(PARAM_RAW, 'Graph JSON'), |
| 99 | 'nodetypes' => new external_value(PARAM_RAW, 'Palette JSON'), |
| 100 | 'events' => new external_value(PARAM_RAW, 'Event class names JSON'), |
| 101 | 'functions' => new external_value(PARAM_RAW, 'Web service function names JSON'), |
| 102 | 'strings' => new external_value(PARAM_RAW, 'Interface strings JSON'), |
| 103 | 'runasuserid' => new external_value(PARAM_INT, 'User the workflow runs as'), |
| 104 | 'runasname' => new external_value(PARAM_TEXT, 'Full name of that user'), |
| 105 | 'canchooserunas' => new external_value(PARAM_BOOL, 'Whether the current user may pick another run-as user'), |
| 106 | ]); |
| 107 | } |
| 108 | } |