Fix license generation and checkout domain field bugs

- Add WooCommerce Checkout Blocks support for domain field
- Create CheckoutBlocksIntegration for block-based checkout
- Create StoreApiExtension for Store API domain handling
- Add checkout-blocks.js for frontend domain field in blocks
- Fix LicenseManager product type check in generateLicense()
- Add multiple order status hooks for reliable license generation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/Checkout/CheckoutBlocksIntegration.php

@@ -0,0 +1,127 @@
+<?php
+/**
+ * WooCommerce Checkout Blocks Integration
+ *
+ * @package Jeremias\WcLicensedProduct\Checkout
+ */
+
+declare(strict_types=1);
+
+namespace Jeremias\WcLicensedProduct\Checkout;
+
+use Automattic\WooCommerce\Blocks\Integrations\IntegrationInterface;
+
+/**
+ * Integration with WooCommerce Checkout Blocks
+ */
+final class CheckoutBlocksIntegration implements IntegrationInterface
+{
+    /**
+     * The name of the integration
+     */
+    public function get_name(): string
+    {
+        return 'wc-licensed-product';
+    }
+
+    /**
+     * Initialize the integration
+     */
+    public function initialize(): void
+    {
+        $this->registerScripts();
+        $this->registerBlockExtensionData();
+    }
+
+    /**
+     * Register scripts for the checkout block
+     */
+    private function registerScripts(): void
+    {
+        $scriptPath = WC_LICENSED_PRODUCT_PLUGIN_DIR . 'assets/js/checkout-blocks.js';
+        $scriptUrl = WC_LICENSED_PRODUCT_PLUGIN_URL . 'assets/js/checkout-blocks.js';
+
+        if (file_exists($scriptPath)) {
+            wp_register_script(
+                'wc-licensed-product-checkout-blocks',
+                $scriptUrl,
+                ['wc-blocks-checkout', 'wp-element', 'wp-components', 'wp-i18n'],
+                WC_LICENSED_PRODUCT_VERSION,
+                true
+            );
+
+            wp_set_script_translations(
+                'wc-licensed-product-checkout-blocks',
+                'wc-licensed-product',
+                WC_LICENSED_PRODUCT_PLUGIN_DIR . 'languages'
+            );
+        }
+    }
+
+    /**
+     * Register block extension data
+     */
+    private function registerBlockExtensionData(): void
+    {
+        // Pass data to the checkout block script
+        add_filter(
+            'woocommerce_blocks_checkout_block_registration_data',
+            function (array $data): array {
+                $data['wc-licensed-product'] = [
+                    'hasLicensedProducts' => $this->cartHasLicensedProducts(),
+                ];
+                return $data;
+            }
+        );
+    }
+
+    /**
+     * Returns an array of script handles to enqueue in the frontend context
+     */
+    public function get_script_handles(): array
+    {
+        return ['wc-licensed-product-checkout-blocks'];
+    }
+
+    /**
+     * Returns an array of script handles to enqueue in the editor context
+     */
+    public function get_editor_script_handles(): array
+    {
+        return [];
+    }
+
+    /**
+     * Returns script data to pass to the frontend scripts
+     */
+    public function get_script_data(): array
+    {
+        return [
+            'hasLicensedProducts' => $this->cartHasLicensedProducts(),
+            'fieldLabel' => __('Domain for License Activation', 'wc-licensed-product'),
+            'fieldPlaceholder' => __('example.com', 'wc-licensed-product'),
+            'fieldDescription' => __('Enter the domain where you will use this license (without http:// or www).', 'wc-licensed-product'),
+            'sectionTitle' => __('License Domain', 'wc-licensed-product'),
+            'validationError' => __('Please enter a valid domain for your license activation.', 'wc-licensed-product'),
+        ];
+    }
+
+    /**
+     * Check if cart contains licensed products
+     */
+    private function cartHasLicensedProducts(): bool
+    {
+        if (!WC()->cart) {
+            return false;
+        }
+
+        foreach (WC()->cart->get_cart() as $cartItem) {
+            $product = $cartItem['data'];
+            if ($product && $product->is_type('licensed')) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+}