From 586497e1f30832e862c73cebe69223a12f171b75 Mon Sep 17 00:00:00 2001
From: Mohammad Farouk <phun.for.physics@gmail.com>
Date: Thu, 3 Oct 2024 01:31:51 +0300
Subject: [PATCH] add adhoc task for deferred transactions

---
 classes/task/queue_trasaction.php | 89 +++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 classes/task/queue_trasaction.php

diff --git a/classes/task/queue_trasaction.php b/classes/task/queue_trasaction.php
new file mode 100644
index 00000000..d67e6ef1
--- /dev/null
+++ b/classes/task/queue_trasaction.php
@@ -0,0 +1,89 @@
+<?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/>.
+
+namespace enrol_wallet\task;
+
+use enrol_wallet\util\balance_op;
+use enrol_wallet\util\balance;
+/**
+ * Class queue_trasaction
+ *
+ * @package    enrol_wallet
+ * @copyright  2024 Mohammad Farouk <phun.for.physics@gmail.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class queue_trasaction  extends \core\task\adhoc_task {
+    /**
+     * Name for this task.
+     *
+     * @return string
+     */
+    public function get_name() {
+        return 'queue transactions';
+    }
+    /**
+     * Perform the transaction.
+     * @return void
+     */
+    public function execute() {
+        $data = $this->get_custom_data();
+        $op = new balance_op($data['userid'], $data['catid'] ?? 0);
+        if ($data['method'] == 'credit') {
+            $op->credit($data['amount'], $data['by'], $data['thingid'], $data['desc'], $data['refundable'], $data['trigger']);
+        } else if ($data['method'] == 'debit') {
+            $op->debit($data['amount'], $data['by'], $data['thingid'], $data['desc'], $data['neg']);
+        }
+    }
+    /**
+     * Queue credit
+     * @param \enrol_wallet\util\balance $op
+     * @param array $args
+     * @return void
+     */
+    public static function queue_credit(balance $op, array $args) {
+        $args['method'] = 'credit';
+        $args['userid'] = $op->get_user_id();
+        $args['catid'] = $op->get_catid();
+        return self::queue_transaction($args);
+    }
+    /**
+     * Queue debit
+     * @param \enrol_wallet\util\balance $op
+     * @param array $args
+     * @return void
+     */
+    public static function queue_debit(balance $op, array $args) {
+        $args['method'] = 'debit';
+        $args['userid'] = $op->get_user_id();
+        $args['catid'] = $op->get_catid();
+        return self::queue_transaction($args);
+    }
+    /**
+     * Queue transaction
+     * @param array $args
+     * @return void
+     */
+    protected static function queue_transaction(array $args) {
+        $task = new self();
+        $task->set_custom_data($args);
+        if (!PHPUNIT_TEST) {
+            $task->set_next_run_time(time() - 1);
+            \core\task\manager::queue_adhoc_task($task);
+        } else {
+            $task->execute();
+        }
+    }
+}