Subscriptions continued

Dockerfile

@@ -6,11 +6,14 @@ RUN apt-get update \
     && apt-get install -y --no-install-recommends unzip wget gettext vim \
     && wget https://downloads.wordpress.org/plugin/woocommerce.${woocommerce_version}.zip -O /tmp/woocommerce.zip \
     && wget https://downloads.wordpress.org/plugin/relative-url.0.1.7.zip -O /tmp/relative-url.zip \
+    && wget https://github.com/wp-premium/woocommerce-subscriptions/archive/refs/tags/3.0.1.zip -O /tmp/woocommerce-subscriptions.zip \
     && cd /usr/src/wordpress/wp-content/plugins \
     && unzip /tmp/woocommerce.zip \
     && unzip /tmp/relative-url.zip \
+    && unzip /tmp/woocommerce-subscriptions.zip \
     && rm /tmp/woocommerce.zip \
     && rm /tmp/relative-url.zip \
+    && rm /tmp/woocommerce-subscriptions.zip \
     && rm -rf /var/lib/apt/lists/*
 
 COPY --from=composer /usr/bin/composer /usr/bin/composer

class-wc-gateway-komoju.php

@@ -57,6 +57,7 @@ public function __construct()
         // Filters
         // Actions
         add_action('woocommerce_update_options_payment_gateways_' . $this->id, [$this, 'process_admin_options']);
+        add_action('woocommerce_scheduled_subscription_payment_' . $this->id, [$this, 'process_subscription'], 10, 3);
 
         if ($this->id === 'komoju') {
             include_once 'includes/class-wc-gateway-komoju-ipn-handler.php';
@@ -192,6 +193,10 @@ public function process_payment($order_id, $payment_type = null)
             ],
             'line_items' => $line_items,
         ];
+        if (class_exists('WC_Subscriptions_Order') && WC_Subscriptions_Order::order_contains_subscription($order_id)) {
+            $session_params['mode'] = 'customer';
+        }
+
         $remove_nulls = function ($v) { return !is_null($v); };
         $session_params['payment_data'] = array_filter(
             $session_params['payment_data'],
@@ -206,6 +211,44 @@ public function process_payment($order_id, $payment_type = null)
         ];
     }
 
+    /**
+     * Process an incoming subscription charge
+     */
+    public function process_subscription($amount_to_charge, $order)
+    {
+        foreach (wcs_get_subscriptions_for_order($order, ['order_type' => 'any']) as $subscription) {
+            $parent_order_id = $subscription->get_parent_id();
+        }
+
+        // fetch token from the subscription's parent order
+        $token = get_post_meta($parent_order_id, 'komoju_payment_token', true);
+        if (empty($token)) {
+            $this->log('ERROR: token missing on subscription payment metadata');
+            WC_Subscriptions_Manager::process_subscription_payment_failure_on_order($order);
+
+            return;
+        }
+        try {
+            $komoju_request = $this->create_komoju_payment($token, $order);
+            WC_Subscriptions_Manager::process_subscription_payments_on_order($order);
+        } catch (Exception $e) {
+            $order->add_order_note('KOMOJU Subscription payment failed');
+            WC_Subscriptions_Manager::process_subscription_payment_failure_on_order($order);
+        }
+    }
+
+    public function create_komoju_payment($customer, $order)
+    {
+        $currency = $order->get_currency();
+
+        return $this->komoju_api->createPayment([
+            'amount'             => self::to_cents($order->get_total(), $currency),
+            'external_order_num' => $this->external_order_num($order),
+            'currency'           => $currency,
+            'customer'           => $customer,
+        ]);
+    }
+
     /**
      * Payment form on checkout page
      */

docker-compose.yml

@@ -21,7 +21,7 @@ services:
        context: .
        dockerfile: Dockerfile
        args:
-         woocommerce_version: 4.0.1
+         woocommerce_version: 4.4.0
      ports:
        - "8000:80"
      restart: always

docs/dev_setup.md

@@ -81,3 +81,14 @@ To be able to test the checkout you will first need to have a purchasable produc
 
 If you go to http://127.0.0.1:8000/?post_type=product you should be able to see the shop, with an item for purchase you can use to test the Komoju integration.
 
+
+## Testing subscriptions
+
+1. Follow the setup instructions above
+2. Confirm that the woocommerce subscriptions plugin appears on the list of installed plugins, and that it is enabled.
+3. Create a new product in the same manner as above, but this time choose "Simple Subscription" for product type
+4. select the price and billing cadence
+5. go through the normal checkout flow for the store, with the new subscription product in the cart
+6. complete payment flow
+7. go to the "subscriptions" tab under woocommerce category on the admin and confirm the presence of the subscription
+8. to test subscription renewals - go to the newly created subscription in the subscriptions tab, and select "Process renewal" under subscription actions at the top right of the page

includes/class-wc-gateway-komoju-ipn-handler.php

@@ -41,6 +41,17 @@ public function check_response()
         // callback from session page
         if (isset($_GET['session_id'])) {
             $session = $this->get_session($_GET['session_id']);
+            // session was customer mode
+            if (!is_null($session->customer_id)) {
+                $external_order_num_param = $_GET['external_order_num']; // only passed in customer mode
+                update_post_meta($external_order_num_param, 'komoju_payment_token', wc_clean($session->customer_id));
+                // create initial payment for parent order of subscription
+                $this->gateway->create_komoju_payment($session->customer_id, wc_get_order($external_order_num_param));
+                $success_url = $this->gateway->get_return_url($order);
+                wp_redirect($success_url);
+                exit;
+            }
+
             $order   = $this->get_order_from_komoju_session($session, $this->invoice_prefix);
 
             // null payment on a session indicates incomplete payment flow

includes/class-wc-gateway-komoju-single-slug.php

@@ -31,6 +31,20 @@ public function __construct($payment_method)
             $this->supports[] = 'refunds';
         }
 
+        if (in_array($slug, ['credit_card', 'paypay'])) {
+            array_push($this->supports,
+                'subscriptions',
+                'subscription_cancellation',
+                'subscription_suspension',
+                'subscription_reactivation',
+                'subscription_amount_changes',
+                'subscription_date_changes',
+                'subscription_payment_method_changes',
+                'subscription_payment_method_change_admin',
+                'multiple_subscriptions',
+            );
+        }
+
         parent::__construct();
     }
 

komoju-php/komoju-php/lib/komoju/KomojuApi.php

@@ -44,6 +44,11 @@ public function session($sessionUuid)
         return $this->get('/api/v1/sessions/' . $sessionUuid);
     }
 
+    public function createPayment($payload)
+    {
+        return $this->post('/api/v1/payments', $payload);
+    }
+
     public function refund($paymentUuid, $payload)
     {
         return $this->post('/api/v1/payments/' . $paymentUuid . '/refund', $payload);