index.php

<?php

use Automattic\WooCommerce\Blocks\Payments\PaymentMethodRegistry;

/*
 * Plugin Name: KOMOJU Payments
 * Plugin URI: https://github.com/komoju/komoju-woocommerce
 * Description: Extends WooCommerce with KOMOJU gateway.
 * Author: KOMOJU
 * Author URI: https://komoju.com
 * Version: 3.1.5
 * WC requires at least: 6.0
 * WC tested up to: 9.4.1
 */

add_action('before_woocommerce_init', function () {
    if (class_exists('\Automattic\WooCommerce\Utilities\FeaturesUtil')) {
        Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility('cart_checkout_blocks', __FILE__, true);
        Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility('custom_order_tables', __FILE__, true);
    }
});

add_action('plugins_loaded', 'woocommerce_komoju_init', 0);

function woocommerce_komoju_init()
{
    /*
     * Localisation
     */
    load_plugin_textdomain('komoju-woocommerce', false, dirname(plugin_basename(__FILE__)) . '/languages');

    /**
     * Add the Gateway to WooCommerce
     **/
    function woocommerce_add_komoju_gateway($methods)
    {
        require_once 'class-wc-gateway-komoju.php';
        require_once 'includes/class-wc-gateway-komoju-single-slug.php';
        $methods[] = new WC_Gateway_Komoju();

        $komoju_payment_methods = get_option('komoju_woocommerce_payment_methods');
        if (gettype($komoju_payment_methods) == 'array') {
            foreach ($komoju_payment_methods as $payment_method) {
                $methods[] = new WC_Gateway_Komoju_Single_Slug($payment_method);
            }
        }

        return $methods;
    }

    /**
     * Add the KOMOJU settings page to WooCommerce
     **/
    function woocommerce_add_komoju_settings_page($settings)
    {
        require_once 'class-wc-gateway-komoju.php';
        require_once 'class-wc-settings-page-komoju.php';
        $settings[] = new WC_Settings_Page_Komoju();

        return $settings;
    }

    /**
     * Add the KOMOJU Fields JS
     **/
    function woocommerce_komoju_load_scripts()
    {
        if (!is_checkout()) {
            return;
        }

        $komoju_fields_js = get_option('komoju_woocommerce_fields_url');
        if (!$komoju_fields_js) {
            $komoju_fields_js = 'https://multipay.komoju.com/fields.js';
        }

        wp_enqueue_script('komoju-fields', $komoju_fields_js);
    }

    function woocommerce_komoju_load_script_as_module($tag, $handle, $src)
    {
        if ($handle !== 'komoju-fields') {
            return $tag;
        }

        return '<script type="module" src="' . esc_attr($src) . '"></script>';
    }

    function woocommerce_komoju_handle_http_request()
    {
        // Force WC to load our gateway, causing WC_Gateway_Komoju_IPN_Handler to get instantiated.
        WC()->payment_gateways()->payment_gateways();

        // When WC_Gateway_Komoju_IPN_Handler is instantiated, this filter should be registered.
        $handled = apply_filters('invoke_komoju_ipn_handler', false);

        // Catch unexpected case where the filter is NOT registered
        if (!$handled) {
            header('X-Komoju-Error: komoju gateway not loaded');
            wp_die(
                'gateway (and thus IPN handler) not loaded',
                'KOMOJU WooCommerce plugin',
                ['status' => 500]
            );
        }
    }

    add_filter('woocommerce_payment_gateways', 'woocommerce_add_komoju_gateway');
    add_filter('woocommerce_get_settings_pages', 'woocommerce_add_komoju_settings_page');
    add_action('woocommerce_api_wc_gateway_komoju', 'woocommerce_komoju_handle_http_request');

    add_action('wp_enqueue_scripts', 'woocommerce_komoju_load_scripts');
    add_filter('script_loader_tag', 'woocommerce_komoju_load_script_as_module', 10, 3);

    add_action('plugins_loaded', 'woocommerce_komoju_blocks');

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

        require_once 'includes/class-wc-gateway-komoju-block.php';
    }

    add_action('woocommerce_blocks_loaded', 'register_komoju_payment_method_type');

    function register_komoju_payment_method_type()
    {
        if (!class_exists('Automattic\WooCommerce\Blocks\Payments\Integrations\AbstractPaymentMethodType')) {
            return;
        }

        add_action(
            'woocommerce_blocks_payment_method_type_registration',
            function (PaymentMethodRegistry $payment_method_registry) {
                $gateways = WC()->payment_gateways()->payment_gateways();

                if ($gateways) {
                    foreach ($gateways as $gateway) {
                        if ($gateway->enabled == 'yes' && $gateway instanceof WC_Gateway_Komoju_Single_Slug) {
                            $payment_method_registry->register(new WC_Gateway_Komoju_Blocks($gateway));
                        }
                    }
                }
            }
        );
    }
}