From 33a84b19cba3764100e5cf1b26dd8216cb21126a Mon Sep 17 00:00:00 2001
From: David Remer <webmaster@websupporter.net>
Date: Mon, 6 Jul 2020 11:04:06 +0300
Subject: [PATCH] add webhook

---
 composer.json                                 |  3 +-
 modules.local/ppcp-webhooks/composer.json     | 27 +++++++++
 modules.local/ppcp-webhooks/extensions.php    |  9 +++
 modules.local/ppcp-webhooks/module.php        | 11 ++++
 modules.local/ppcp-webhooks/phpunit.xml.dist  | 20 +++++++
 modules.local/ppcp-webhooks/services.php      | 31 ++++++++++
 .../src/Handler/PaymentCaptureCompleted.php   | 25 ++++++++
 .../src/Handler/RequestHandler.php            | 15 +++++
 .../src/IncomingWebhookEndpoint.php           | 58 +++++++++++++++++++
 .../ppcp-webhooks/src/WebhookModule.php       | 39 +++++++++++++
 .../ppcp-webhooks/src/WebhookRegistrar.php    | 41 +++++++++++++
 11 files changed, 278 insertions(+), 1 deletion(-)
 create mode 100644 modules.local/ppcp-webhooks/composer.json
 create mode 100644 modules.local/ppcp-webhooks/extensions.php
 create mode 100644 modules.local/ppcp-webhooks/module.php
 create mode 100644 modules.local/ppcp-webhooks/phpunit.xml.dist
 create mode 100644 modules.local/ppcp-webhooks/services.php
 create mode 100644 modules.local/ppcp-webhooks/src/Handler/PaymentCaptureCompleted.php
 create mode 100644 modules.local/ppcp-webhooks/src/Handler/RequestHandler.php
 create mode 100644 modules.local/ppcp-webhooks/src/IncomingWebhookEndpoint.php
 create mode 100644 modules.local/ppcp-webhooks/src/WebhookModule.php
 create mode 100644 modules.local/ppcp-webhooks/src/WebhookRegistrar.php

diff --git a/composer.json b/composer.json
index 639fecdff..907493905 100644
--- a/composer.json
+++ b/composer.json
@@ -43,7 +43,8 @@
             "Inpsyde\\PayPalCommerce\\Button\\": "modules.local/ppcp-button/src/",
             "Inpsyde\\PayPalCommerce\\WcGateway\\": "modules.local/ppcp-wc-gateway/src/",
             "Inpsyde\\PayPalCommerce\\Onboarding\\": "modules.local/ppcp-onboarding/src/",
-            "Inpsyde\\Woocommerce\\Logging\\": "modules.local/woocommerce-logging/src/"
+            "Inpsyde\\Woocommerce\\Logging\\": "modules.local/woocommerce-logging/src/",
+            "Inpsyde\\Woocommerce\\Webhooks\\": "modules.local/ppcp-webhooks/src/"
         }
     },
     "autoload-dev": {
diff --git a/modules.local/ppcp-webhooks/composer.json b/modules.local/ppcp-webhooks/composer.json
new file mode 100644
index 000000000..be4c9a9fd
--- /dev/null
+++ b/modules.local/ppcp-webhooks/composer.json
@@ -0,0 +1,27 @@
+{
+  "name": "inpsyde/ppcp-webhooks",
+  "type": "inpsyde-module",
+  "require": {
+    "dhii/module-interface": "0.2.x-dev"
+  },
+  "autoload": {
+    "psr-4": {
+      "Inpsyde\\PayPalCommerce\\Webhooks\\": "src/"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "Inpsyde\\PayPalCommerce\\Webhooks\\": "tests/PHPUnit"
+    }
+  },
+  "scripts": {
+    "unit": "./vendor/bin/phpunit --coverage-html build/coverage-report"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^9.1",
+    "brain/monkey": "^2.4",
+    "inpsyde/php-coding-standards": "^1"
+  },
+  "minimum-stability": "dev",
+  "prefer-stable": true
+}
diff --git a/modules.local/ppcp-webhooks/extensions.php b/modules.local/ppcp-webhooks/extensions.php
new file mode 100644
index 000000000..ca4be65b8
--- /dev/null
+++ b/modules.local/ppcp-webhooks/extensions.php
@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks;
+
+return [
+    
+];
diff --git a/modules.local/ppcp-webhooks/module.php b/modules.local/ppcp-webhooks/module.php
new file mode 100644
index 000000000..e76a7ad7e
--- /dev/null
+++ b/modules.local/ppcp-webhooks/module.php
@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks;
+
+use Dhii\Modular\Module\ModuleInterface;
+
+return static function (): ModuleInterface {
+    return new WebhookModule();
+};
diff --git a/modules.local/ppcp-webhooks/phpunit.xml.dist b/modules.local/ppcp-webhooks/phpunit.xml.dist
new file mode 100644
index 000000000..0a6a23a51
--- /dev/null
+++ b/modules.local/ppcp-webhooks/phpunit.xml.dist
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+        bootstrap="vendor/autoload.php"
+        backupGlobals="false"
+        colors="true"
+        convertErrorsToExceptions="true"
+        convertNoticesToExceptions="true"
+        convertWarningsToExceptions="true"
+>
+    <filter>
+        <whitelist processUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">./src</directory>
+        </whitelist>
+    </filter>
+    <testsuites>
+        <testsuite name="unit">
+            <directory suffix="Test.php">./tests/PHPUnit</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>
diff --git a/modules.local/ppcp-webhooks/services.php b/modules.local/ppcp-webhooks/services.php
new file mode 100644
index 000000000..177b2ff24
--- /dev/null
+++ b/modules.local/ppcp-webhooks/services.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks;
+
+use Inpsyde\PayPalCommerce\Webhooks\Handler\PaymentCaptureCompleted;
+use Psr\Container\ContainerInterface;
+
+return [
+
+    'webhook.registrar' => function(ContainerInterface $container) : WebhookRegistrar {
+        $factory = $container->get('api.factory.webhook');
+        $endpoint = $container->get('api.endpoint.webhook');
+        $restEndpoint = $container->get('webhook.endpoint.controller');
+        return new WebhookRegistrar(
+            $factory,
+            $endpoint,
+            $restEndpoint
+        );
+    },
+    'webhook.endpoint.controller' => function(ContainerInterface $container) : IncomingWebhookEndpoint {
+        $handler = $container->get('webhook.endpoint.handler');
+        return new IncomingWebhookEndpoint(... $handler);
+    },
+    'webhook.endpoint.handler' => function(ContainerInterface $container) : array {
+        return [
+            new PaymentCaptureCompleted(),
+        ];
+    }
+];
diff --git a/modules.local/ppcp-webhooks/src/Handler/PaymentCaptureCompleted.php b/modules.local/ppcp-webhooks/src/Handler/PaymentCaptureCompleted.php
new file mode 100644
index 000000000..047d6eca2
--- /dev/null
+++ b/modules.local/ppcp-webhooks/src/Handler/PaymentCaptureCompleted.php
@@ -0,0 +1,25 @@
+<?php
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks\Handler;
+
+
+class PaymentCaptureCompleted implements RequestHandler
+{
+
+
+    public function eventType(): string
+    {
+        return 'PAYMENT.CAPTURE.COMPLETED';
+    }
+
+    public function responsibleForRequest(\WP_REST_Request $request): bool
+    {
+        return true;
+    }
+
+    public function handleRequest(\WP_REST_Request $request): \WP_REST_Response
+    {
+        return new \WP_REST_Response();
+    }
+}
\ No newline at end of file
diff --git a/modules.local/ppcp-webhooks/src/Handler/RequestHandler.php b/modules.local/ppcp-webhooks/src/Handler/RequestHandler.php
new file mode 100644
index 000000000..885b37208
--- /dev/null
+++ b/modules.local/ppcp-webhooks/src/Handler/RequestHandler.php
@@ -0,0 +1,15 @@
+<?php
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks\Handler;
+
+
+interface RequestHandler
+{
+
+    public function eventType() : string;
+
+    public function responsibleForRequest(\WP_REST_Request $request) : bool;
+
+    public function handleRequest(\WP_REST_Request $request) : \WP_REST_Response;
+}
\ No newline at end of file
diff --git a/modules.local/ppcp-webhooks/src/IncomingWebhookEndpoint.php b/modules.local/ppcp-webhooks/src/IncomingWebhookEndpoint.php
new file mode 100644
index 000000000..600607053
--- /dev/null
+++ b/modules.local/ppcp-webhooks/src/IncomingWebhookEndpoint.php
@@ -0,0 +1,58 @@
+<?php
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks;
+
+
+use Inpsyde\PayPalCommerce\Webhooks\Handler\RequestHandler;
+
+class IncomingWebhookEndpoint
+{
+
+    public const NAMESPACE = 'paypal/v1/';
+    public const ROUTE = 'incoming';
+    private $handlers;
+    public function __construct(RequestHandler ...$handlers)
+    {
+        $this->handlers = $handlers;
+    }
+
+    public function register() : bool
+    {
+        return (bool) register_rest_route(
+            self::NAMESPACE,
+            self::ROUTE,
+            [
+                'methods' => [
+                    'GET',
+                ],
+                'callback' => [
+                    $this,
+                    'handleRequest',
+                ],
+            ]
+        );
+    }
+
+    public function handleRequest(\WP_REST_Request $request) : \WP_REST_Response {
+
+        foreach ($this->handlers as $handler) {
+            if ($handler->responsibleForRequest($request)) {
+                return $handler->handleRequest($request);
+            }
+        }
+    }
+
+    public function url() : string {
+        return rest_url(self::NAMESPACE . self::ROUTE );
+    }
+
+    public function handledEventTypes() : array {
+        return array_map(
+            function(RequestHandler $handler) : string {
+                return $handler->eventType();
+            },
+            $this->handlers
+        );
+    }
+}
diff --git a/modules.local/ppcp-webhooks/src/WebhookModule.php b/modules.local/ppcp-webhooks/src/WebhookModule.php
new file mode 100644
index 000000000..835a56bca
--- /dev/null
+++ b/modules.local/ppcp-webhooks/src/WebhookModule.php
@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks;
+
+use Dhii\Container\ServiceProvider;
+use Dhii\Modular\Module\ModuleInterface;
+use Inpsyde\PayPalCommerce\Onboarding\Assets\OnboardingAssets;
+use Inpsyde\PayPalCommerce\Onboarding\Endpoint\LoginSellerEndpoint;
+use Inpsyde\PayPalCommerce\Onboarding\Render\OnboardingRenderer;
+use Interop\Container\ServiceProviderInterface;
+use Psr\Container\ContainerInterface;
+
+class WebhookModule implements ModuleInterface
+{
+    public function setup(): ServiceProviderInterface
+    {
+        return new ServiceProvider(
+            require __DIR__ . '/../services.php',
+            require __DIR__ . '/../extensions.php'
+        );
+    }
+
+    public function run(ContainerInterface $container)
+    {
+        add_action(
+            'rest_init',
+            function() use ($container) {
+                $endpoint = $container->get('webhook.endpoint.controller');
+                /**
+                 * @var IncomingWebhookEndpoint $endpoint
+                 */
+                $endpoint->register();
+            }
+        );
+
+    }
+}
diff --git a/modules.local/ppcp-webhooks/src/WebhookRegistrar.php b/modules.local/ppcp-webhooks/src/WebhookRegistrar.php
new file mode 100644
index 000000000..060c4a355
--- /dev/null
+++ b/modules.local/ppcp-webhooks/src/WebhookRegistrar.php
@@ -0,0 +1,41 @@
+<?php
+declare(strict_types=1);
+
+namespace Inpsyde\PayPalCommerce\Webhooks;
+
+
+use Inpsyde\PayPalCommerce\ApiClient\Endpoint\WebhookEndpoint;
+use Inpsyde\PayPalCommerce\ApiClient\Exception\RuntimeException;
+use Inpsyde\PayPalCommerce\ApiClient\Factory\WebhookFactory;
+
+class WebhookRegistrar
+{
+
+    private $webhookFactory;
+    private $endpoint;
+    private $restEndpoint;
+    public function __construct(
+        WebhookFactory $webhookFactory,
+        WebhookEndpoint $endpoint,
+        IncomingWebhookEndpoint $restEndpoint
+    ) {
+        $this->webhookFactory = $webhookFactory;
+        $this->endpoint = $endpoint;
+        $this->restEndpoint = $restEndpoint;
+    }
+
+    public function register() : bool
+    {
+        $webhook = $this->webhookFactory->forUrlAndEvents(
+            $this->restEndpoint->url(),
+            $this->restEndpoint->handledEventTypes()
+        );
+
+        try {
+            $created = $this->endpoint->create($webhook);
+            return ! empty($created->id());
+        } catch (RuntimeException $error) {
+            return false;
+        }
+    }
+}
\ No newline at end of file