Add module boilerplate

modules/ppcp-card-fields/src/CardFieldsModule.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * The Card Fields module.
+ *
+ * @package WooCommerce\PayPalCommerce\CardFields
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\CardFields;
+
+use WooCommerce\PayPalCommerce\Vendor\Dhii\Container\ServiceProvider;
+use WooCommerce\PayPalCommerce\Vendor\Dhii\Modular\Module\ModuleInterface;
+use WooCommerce\PayPalCommerce\Vendor\Interop\Container\ServiceProviderInterface;
+use WooCommerce\PayPalCommerce\Vendor\Psr\Container\ContainerInterface;
+
+class CardFieldsModule implements ModuleInterface {
+
+	public function setup(): ServiceProviderInterface {
+		return new ServiceProvider(
+			require __DIR__ . '/../services.php',
+			require __DIR__ . '/../extensions.php'
+		);
+	}
+
+	public function run(ContainerInterface $c): void {
+		if ( ! $c->get( 'card-fields.eligible' ) ) {
+			return;
+		}
+
+		add_action(
+			'wp_enqueue_scripts',
+			function () use ($c) {
+				$module_url = $c->get( 'card-fields.module.url' );
+				wp_enqueue_script(
+					'ppcp-card-fields-boot',
+					untrailingslashit( $module_url ) . '/assets/js/boot.js',
+					array( 'jquery' ),
+					$c->get( 'ppcp.asset-version' ),
+					true
+				);
+			}
+		);
+	}
+}

modules/ppcp-card-fields/src/Helper/CardFieldsApplies.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * Service for checking whether Card Fields can be used in the current country and the current currency.
+ *
+ * @package WooCommerce\PayPalCommerce\CardFields\Helper
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\CardFields\Helper;
+
+/**
+ * Class CardFieldsApplies
+ */
+class CardFieldsApplies {
+
+	/**
+	 * The matrix which countries and currency combinations can be used.
+	 *
+	 * @var array
+	 */
+	private $allowed_country_currency_matrix;
+
+	/**
+	 * 3-letter currency code of the shop.
+	 *
+	 * @var string
+	 */
+	private $currency;
+
+	/**
+	 * 2-letter country code of the shop.
+	 *
+	 * @var string
+	 */
+	private $country;
+
+	/**
+	 * CardFieldsApplies constructor.
+	 *
+	 * @param array  $allowed_country_currency_matrix The matrix which countries and currency combinations can be used.
+	 * @param string $currency 3-letter currency code of the shop.
+	 * @param string $country 2-letter country code of the shop.
+	 */
+	public function __construct(
+		array $allowed_country_currency_matrix,
+		string $currency,
+		string $country
+	) {
+		$this->allowed_country_currency_matrix = $allowed_country_currency_matrix;
+		$this->currency                        = $currency;
+		$this->country                         = $country;
+	}
+
+	/**
+	 * Returns whether Card Fields can be used in the current country and the current currency.
+	 *
+	 * @return bool
+	 */
+	public function for_country_currency(): bool {
+		if ( ! in_array( $this->country, array_keys( $this->allowed_country_currency_matrix ), true ) ) {
+			return false;
+		}
+		return in_array( $this->currency, $this->allowed_country_currency_matrix[ $this->country ], true );
+	}
+}