MDL-69166 core_payment: basic gateway skeleton
[moodle.git] / payment / classes / helper.php
CommitLineData
4865d2a0
SR
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 helper class for the payment subsystem.
19 *
20 * @package core_payment
21 * @copyright 2019 Shamim Rezaie <shamim@moodle.com>
22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24
25namespace core_payment;
26
27defined('MOODLE_INTERNAL') || die();
28
29/**
30 * Helper class for the payment subsystem.
31 *
32 * @copyright 2019 Shamim Rezaie <shamim@moodle.com>
33 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
34 */
35class helper {
36
37 /**
38 * Returns an accumulated list of supported currencies by all payment gateways.
39 *
40 * @return string[] An array of the currency codes in the three-character ISO-4217 format
41 */
42 public static function get_supported_currencies(): array {
43 $currencies = [];
44
45 $plugins = \core_plugin_manager::instance()->get_enabled_plugins('pg');
46 foreach ($plugins as $plugin) {
47 $classname = '\pg_' . $plugin . '\gateway';
48
49 $currencies += $classname::get_supported_currencies();
50 }
51
52 $currencies = array_unique($currencies);
53
54 return $currencies;
55 }
56}