Accepter MonCash sur WooCommerce

<?php
/**
 * Plugin Name: My MonCash Gateway
 * Description: Intégration manuelle MonCashConnect pour WooCommerce
 * Version:     1.0.0
 * Requires Plugins: woocommerce
 */

if (! defined('ABSPATH')) { exit; }

add_action('plugins_loaded', function () {

    if (! class_exists('WC_Payment_Gateway')) { return; }

    class WC_My_MonCash_Gateway extends WC_Payment_Gateway {

        public function __construct() {
            $this->id                 = 'my_moncash';
            $this->method_title       = 'MonCash (manuel)';
            $this->method_description = 'Paiement MonCash via MonCashConnect.';
            $this->has_fields         = false;
            $this->supports           = ['products'];

            $this->init_form_fields();
            $this->init_settings();

            $this->title         = $this->get_option('title');
            $this->description   = $this->get_option('description');
            $this->secret_key    = $this->get_option('secret_key');
            $this->webhook_secret = $this->get_option('webhook_secret');

            add_action('woocommerce_update_options_payment_gateways_' . $this->id,
                [$this, 'process_admin_options']);

            // Webhook endpoint
            add_action('woocommerce_api_wc_my_moncash_webhook',
                [$this, 'handle_webhook']);
        }

        public function init_form_fields() {
            $this->form_fields = [
                'enabled'        => ['title' => 'Activer', 'type' => 'checkbox', 'default' => 'no'],
                'title'          => ['title' => 'Titre',   'type' => 'text',     'default' => 'MonCash'],
                'description'    => ['title' => 'Description', 'type' => 'textarea'],
                'secret_key'     => ['title' => 'Secret Key (sk_proj_…)',        'type' => 'password'],
                'webhook_secret' => ['title' => 'Webhook Secret (whsec_…)',     'type' => 'password'],
            ];
        }

        public function process_payment($order_id) {
            $order = wc_get_order($order_id);

            $body = wp_json_encode([
                'amount'       => (float) $order->get_total(),
                'referenceId'  => (string) $order->get_id(),
                'returnUrl'    => $this->get_return_url($order),
                'customerName' => trim($order->get_billing_first_name() . ' ' . $order->get_billing_last_name()),
                'customerEmail'=> $order->get_billing_email(),
            ]);

            $res = wp_remote_post('https://hvlmeoqyxaguzcujpmit.supabase.co/functions/v1/pay-create', [
                'headers' => [
                    'Authorization' => 'Bearer ' . $this->secret_key,
                    'Content-Type'  => 'application/json',
                ],
                'body'    => $body,
                'timeout' => 20,
            ]);

            if (is_wp_error($res)) {
                wc_add_notice('Erreur MonCashConnect : ' . $res->get_error_message(), 'error');
                return ['result' => 'fail'];
            }

            $data = json_decode(wp_remote_retrieve_body($res), true);
            if (empty($data['paymentUrl'])) {
                wc_add_notice('Réponse MonCashConnect invalide.', 'error');
                return ['result' => 'fail'];
            }

            $order->update_status('pending', 'En attente de MonCash');

            return ['result' => 'success', 'redirect' => $data['paymentUrl']];
        }

        public function handle_webhook() {
            $raw       = file_get_contents('php://input');
            $signature = $_SERVER['HTTP_X_MCC_SIGNATURE'] ?? '';
            $timestamp = $_SERVER['HTTP_X_MCC_TIMESTAMP'] ?? '';

            $expected = hash_hmac('sha256', $timestamp . '.' . $raw, $this->webhook_secret);
            if (! hash_equals($expected, $signature)) {
                status_header(401); exit('bad signature');
            }

            $event = json_decode($raw, true);
            $order = wc_get_order((int) ($event['reference'] ?? 0));
            if (! $order) { status_header(404); exit('order not found'); }

            if (($event['event'] ?? '') === 'payment.completed') {
                if (! $order->is_paid()) {
                    $order->payment_complete();
                    $order->add_order_note('Paiement MonCash confirmé.');
                }
            } elseif (($event['event'] ?? '') === 'payment.failed') {
                $order->update_status('failed', 'Paiement MonCash échoué.');
            }

            status_header(200); exit('ok');
        }
    }

    add_filter('woocommerce_payment_gateways', function ($methods) {
        $methods[] = 'WC_My_MonCash_Gateway';
        return $methods;
    });
});

https://votresite.com/wc-api/wc_moncashconnect_webhook

https://votresite.com/wc-api/wc_my_moncash_webhook