Get store currency from service

modules/ppcp-api-client/services.php

@@ -392,10 +392,10 @@ return array(
 		return new ProductFactory();
 	},
 	'api.factory.billing-cycle'                 => static function( ContainerInterface $container ): BillingCycleFactory {
-		return new BillingCycleFactory();
+		return new BillingCycleFactory( $container->get( 'api.shop.currency' ) );
 	},
 	'api.factory.payment-preferences'           => static function( ContainerInterface $container ):PaymentPreferencesFactory {
-		return new PaymentPreferencesFactory();
+		return new PaymentPreferencesFactory( $container->get( 'api.shop.currency' ) );
 	},
 	'api.factory.plan'                          => static function( ContainerInterface $container ): PlanFactory {
 		return new PlanFactory(

modules/ppcp-api-client/src/Factory/BillingCycleFactory.php

@@ -15,6 +15,28 @@ use WooCommerce\PayPalCommerce\ApiClient\Entity\BillingCycle;
 
 class BillingCycleFactory {
 
+	/**
+	 * The currency.
+	 *
+	 * @var string
+	 */
+	private $currency;
+
+	/**
+	 * The currency.
+	 *
+	 * @param string $currency
+	 */
+	public function __construct( string $currency ) {
+		$this->currency = $currency;
+	}
+
+	/**
+	 * Returns a BillingCycle object from the given WC product.
+	 *
+	 * @param WC_Product $product WC product.
+	 * @return BillingCycle
+	 */
 	public function from_wc_product( WC_Product $product ): BillingCycle {
 		return new BillingCycle(
 			array(
@@ -26,13 +48,19 @@ class BillingCycleFactory {
 			array(
 				'fixed_price' => array(
 					'value'         => $product->get_meta( '_subscription_price' ),
-					'currency_code' => 'USD',
+					'currency_code' => $this->currency,
 				),
 			),
 			(int) $product->get_meta( '_subscription_length' )
 		);
 	}
 
+	/**
+	 * Returns a BillingCycle object based off a PayPal response.
+	 *
+	 * @param stdClass $data the data.
+	 * @return BillingCycle
+	 */
 	public function from_paypal_response( stdClass $data ): BillingCycle {
 		return new BillingCycle(
 			array(

modules/ppcp-api-client/src/Factory/PaymentPreferencesFactory.php

@@ -15,15 +15,43 @@ use WooCommerce\PayPalCommerce\ApiClient\Entity\PaymentPreferences;
 
 class PaymentPreferencesFactory {
 
+	/**
+	 * The currency.
+	 *
+	 * @var string
+	 */
+	private $currency;
+
+	/**
+	 * PaymentPreferencesFactory constructor.
+	 *
+	 * @param string $currency The currency.
+	 */
+	public function __construct( string $currency ) {
+		$this->currency = $currency;
+	}
+
+	/**
+	 * Returns a PaymentPreferences object from the given WC product.
+	 *
+	 * @param WC_Product $product WC product.
+	 * @return PaymentPreferences
+	 */
 	public function from_wc_product( WC_Product $product ):PaymentPreferences {
 		return new PaymentPreferences(
 			array(
 				'value'         => $product->get_meta( '_subscription_sign_up_fee' ) ?: '0',
-				'currency_code' => 'USD',
+				'currency_code' => $this->currency,
 			)
 		);
 	}
 
+	/**
+	 * Returns a PaymentPreferences object based off a PayPal response.
+	 *
+	 * @param stdClass $data The data.
+	 * @return PaymentPreferences
+	 */
 	public function from_paypal_response( stdClass $data ) {
 		return new PaymentPreferences(
 			array(