Add multicurrency support

fast.php

@@ -31,6 +31,8 @@
 	require_once FASTWC_PATH . 'includes/assets.php';
 	// Loads fast utilities.
 	require_once FASTWC_PATH . 'includes/utilities.php';
+	// Add suppot for multicurrency.
+	require_once FASTWC_PATH . 'includes/multicurrency.php';
 	// Adds Fast Checkout button to store.
 	require_once FASTWC_PATH . 'includes/checkout.php';
 	// Adds Fast Login button to store.

includes/checkout.php

@@ -150,10 +150,14 @@ function fastwc_woocommerce_before_checkout_form() {
  *
  * @param WC_Data         $order   Object object.
  * @param WP_REST_Request $request Request object.
+ *
+ * @return WC_Data
  */
 function fastwc_woocommerce_rest_pre_insert_shop_order_object( $order, $request ) {
 
-	fastwc_log_debug( 'Request object: ' . print_r( $request, true ) ); // phpcs:ignore
+	$order = fastwc_maybe_update_order_for_multicurrency( $order, $request );
+
+	fastwc_log_debug( 'Request object: ' . print_r( $request, true ) );
 
 	fastwc_log_debug( 'fastwc_woocommerce_rest_pre_insert_shop_order_object ' . print_r( $order, true ) ); // phpcs:ignore
 

includes/multicurrency.php

@@ -0,0 +1,173 @@
+<?php
+/**
+ * Add support for multicurrency functionality.
+ *
+ * @package fast
+ */
+
+// Add base multicurrency class.
+require_once FASTWC_PATH . 'includes/multicurrency/class-base.php';
+// Add support for Currency Switcher for WooCommerce plugin.
+require_once FASTWC_PATH . 'includes/multicurrency/class-currency-switcher-woocommerce.php';
+// Add support for WooCommerce Currency Switcher plugin.
+require_once FASTWC_PATH . 'includes/multicurrency/class-woocommerce-currency-switcher.php';
+// Add support for Price Based on Country for WooCommerce plugin.
+require_once FASTWC_PATH . 'includes/multicurrency/class-woocommerce-product-price-based-on-countries.php';
+
+/**
+ * Checks if multicurrency support is disabled.
+ *
+ * @return bool True if multicurrency support is disabled. False otherwise.
+ */
+function fastwc_is_multicurrency_support_disabled() {
+	$fastwc_disable_multicurrency = get_option( FASTWC_SETTING_DISABLE_MULTICURRENCY, false );
+
+	if ( ! empty( $fastwc_disable_multicurrency ) ) {
+		return true;
+	}
+
+	return false;
+
+}
+
+/**
+ * Maybe update order for multicurrency.
+ *
+ * @param WC_Data         $order    The order to check.
+ * @param WP_REST_Request $request  Request object.
+ *
+ * @return WC_Data
+ */
+function fastwc_maybe_update_order_for_multicurrency( $order, $request ) {
+	$multicurrency_disabled = fastwc_is_multicurrency_support_disabled();
+
+	// Do nothing if multicurrency is disabled.
+	if ( false === $multicurrency_disabled ) {
+		$wc_currency    = get_woocommerce_currency();
+		$order_currency = fastwc_get_order_currency( $order );
+
+		if (
+			! empty( $order_currency ) // Make sure the order currency is set.
+			&& $wc_currency !== $order_currency // Make sure the order currency is not the default currency.
+		) {
+			$order = fastwc_update_order_for_multicurrency( $order, $request );
+		}
+	}
+
+	return $order;
+}
+
+/**
+ * Get the order currency.
+ *
+ * @param WC_Data $order The order to check.
+ *
+ * @return string
+ */
+function fastwc_get_order_currency( $order ) {
+	$wc_currency = get_woocommerce_currency();
+
+	return method_exists( $order, 'get_currency' ) ? $order->get_currency() : $wc_currency;
+}
+
+/**
+ * Update the order for multicurrency.
+ *
+ * @param WC_Data         $order                The order to check.
+ * @param WP_REST_Request $request              Request object.
+ *
+ * @return WC_Data
+ */
+function fastwc_update_order_for_multicurrency( $order, $request ) {
+
+	/**
+	 * Maybe update the order from the multicurrency plugin.
+	 *
+	 * @param WC_Data         $order                The order to check.
+	 * @param WP_REST_Request $request              Request object.
+	 */
+	$order = apply_filters(
+		'fastwc_update_order_for_multicurrency',
+		$order,
+		$request
+	);
+
+	foreach ( $order->get_items() as $item_id => $item ) {
+		$product  = method_exists( $item, 'get_product' ) ? $item->get_product() : null;
+		$quantity = method_exists( $item, 'get_quantity' ) ? (int) $item->get_quantity() : 0;
+
+		if ( ! empty( $product ) ) {
+			/**
+			 * Get the price from the multicurrency plugin.
+			 *
+			 * @param string     $price   Value of the price.
+			 * @param WC_Product $product The product object.
+			 * @param WC_Data    $order   The order to check.
+			 * @param WC_Request $request Request object.
+			 */
+			$price = apply_filters(
+				'fastwc_update_price_for_multicurrency',
+				$product->get_price(),
+				$product,
+				$order,
+				$request
+			);
+
+			// Calculate the price by multiplying by quantity.
+			$new_price = $price * $quantity;
+
+			// Set the new price.
+			$item->set_subtotal( $new_price );
+			$item->set_total( $new_price );
+
+			// Make new tax calculations.
+			$item->calculate_taxes();
+
+			// Save the item data.
+			$item->save();
+		}
+	}
+
+	$order->calculate_totals();
+
+	return $order;
+}
+
+/**
+ * Maybe update shipping rates for multicurrency.
+ *
+ * @param array           $rate_info   The rate response information.
+ * @param string          $wc_currency The default WooCommerce currency.
+ * @param string          $currency    The customer currency.
+ * @param WP_REST_Request $request     The request object.
+ *
+ * @return array
+ */
+function fastwc_maybe_update_shipping_rate_for_multicurrency( $rate_info, $wc_currency, $currency, $request ) {
+	$multicurrency_disabled = fastwc_is_multicurrency_support_disabled();
+
+	// Do nothing if multicurrency is disabled.
+	if (
+		false === $multicurrency_disabled
+		&& ! empty( $currency ) // Make sure the customer currency is set.
+		&& $wc_currency !== $currency // Make sure the customer currency is not the default currency.
+	) {
+		/**
+		 * Update shipping rates for multicurrency.
+		 *
+		 * @param array           $rate_info The rate response information.
+		 * @param string          $currency  The customer currency.
+		 * @param WP_REST_Request $request   The request object.
+		 *
+		 * @return array
+		 */
+		$rate_info = apply_filters(
+			'fastwc_update_shipping_rate_for_multicurrency',
+			$rate_info,
+			$currency,
+			$request
+		);
+	}
+
+	return $rate_info;
+}

includes/multicurrency/class-base.php

@@ -0,0 +1,121 @@
+<?php
+/**
+ * Multicurrency support plugin base class.
+ *
+ * @package Fast
+ */
+
+namespace FastWC\Multicurrency;
+
+/**
+ * Base class for supporting third party multicurrency plugins.
+ */
+class Base {
+
+	/**
+	 * Create the class.
+	 */
+	public function __construct() {
+		add_filter( 'fastwc_update_price_for_multicurrency', array( $this, 'update_price' ), 10, 4 );
+		add_filter( 'fastwc_update_shipping_rate_for_multicurrency', array( $this, 'update_shipping' ), 10, 3 );
+		add_filter( 'fastwc_update_order_for_multicurrency', array( $this, 'update_order' ), 10, 2 );
+	}
+
+	/**
+	 * Check if the third-party plugin is active.
+	 *
+	 * @return bool
+	 */
+	protected function is_active() {
+		return false;
+	}
+
+	/**
+	 * Filter handler for updating the product price for multicurrency.
+	 *
+	 * @param string     $price   Value of the price.
+	 * @param WC_Product $product The product object.
+	 * @param WC_Data    $order   The order to check.
+	 * @param WC_Request $request Request object.
+	 *
+	 * @return string
+	 */
+	public function update_price( $price, $product, $order, $request ) {
+
+		if ( $this->is_active() ) {
+			return $this->do_update_price( $price, $product, $order, $request );
+		}
+
+		return $price;
+	}
+
+	/**
+	 * Update the product price for multicurrency.
+	 *
+	 * @param string     $price   Value of the price.
+	 * @param WC_Product $product The product object.
+	 * @param WC_Data    $order   The order to check.
+	 * @param WC_Request $request Request object.
+	 *
+	 * @return string
+	 */
+	protected function do_update_price( $price, $product, $order, $request ) {
+		return $price;
+	}
+
+	/**
+	 * Filter handler for updating the shipping rate for multicurrency.
+	 *
+	 * @param array           $rate_info The rate response information.
+	 * @param string          $currency  The customer currency.
+	 * @param WP_REST_Request $request   The request object.
+	 *
+	 * @return array
+	 */
+	public function update_shipping( $rate_info, $currency, $request ) {
+
+		if ( $this->is_active() ) {
+			return $this->do_update_shipping( $rate_info, $currency, $request );
+		}
+
+		return $rate_info;
+	}
+
+	/**
+	 * Update the shipping rate for multicurrency.
+	 *
+	 * @param array           $rate_info The rate response information.
+	 * @param string          $currency  The customer currency.
+	 * @param WP_REST_Request $request   The request object.
+	 *
+	 * @return array
+	 */
+	protected function do_update_shipping( $rate_info, $currency, $request ) {
+		return $rate_info;
+	}
+
+	/**
+	 * Filter handler for updating the order for multicurrency.
+	 *
+	 * @param WC_Data         $order                The order to check.
+	 * @param WP_REST_Request $request              Request object.
+	 */
+	public function update_order( $order, $request ) {
+
+		if ( $this->is_active() ) {
+			return $this->do_update_order( $order, $request );
+		}
+
+		return $order;
+	}
+
+	/**
+	 * Update the order for multicurrency.
+	 *
+	 * @param WC_Data         $order                The order to check.
+	 * @param WP_REST_Request $request              Request object.
+	 */
+	protected function do_update_order( $order, $request ) {
+		return $order;
+	}
+}

includes/multicurrency/class-currency-switcher-woocommerce.php

@@ -0,0 +1,70 @@
+<?php
+/**
+ * Add support for Currency Switcher for WooCommerce plugin.
+ *
+ * @see https://wordpress.org/plugins/currency-switcher-woocommerce/
+ *
+ * @package Fast
+ */
+
+namespace FastWC\Multicurrency;
+
+/**
+ * Class to support Currency Switcher for WooCommerce.
+ */
+class Currency_Switcher_Woocommerce extends Base {
+
+	/**
+	 * Check if the third-party plugin is active.
+	 *
+	 * @return bool
+	 */
+	protected function is_active() {
+		return class_exists( 'Alg_WC_Currency_Switcher' );
+	}
+
+	/**
+	 * Update the product price for multicurrency.
+	 *
+	 * @param string     $price   Value of the price.
+	 * @param WC_Product $product The product object.
+	 * @param WC_Data    $order   The order to check.
+	 * @param WC_Request $request Request object.
+	 *
+	 * @return string
+	 */
+	protected function do_update_price( $price, $product, $order, $request ) {
+
+		$order_currency = \fastwc_get_order_currency( $order );
+		$new_price      = \alg_get_product_price_by_currency( $price, $order_currency, $product, true );
+
+		if ( ! empty( $new_price ) ) {
+			return $new_price;
+		}
+
+		return $price;
+	}
+
+	/**
+	 * Update the shipping rate for multicurrency.
+	 *
+	 * @param array           $rate_info The rate response information.
+	 * @param string          $currency  The customer currency.
+	 * @param WP_REST_Request $request   The request object.
+	 *
+	 * @return array
+	 */
+	protected function do_update_shipping( $rate_info, $currency, $request ) {
+
+		$rate_info['price'] = \alg_get_product_price_by_currency_global( $rate_info['price'], $currency );
+		if ( ! empty( $rate_info['taxes'] ) ) {
+			$rate_taxes = $rate_info['taxes'];
+
+			foreach ( $rate_taxes as $rate_tax_id => $rate_tax ) {
+				$rate_info['taxes'][ $rate_tax_id ] = \alg_get_product_price_by_currency_global( $rate_tax, $currency );
+			}
+		}
+
+		return $rate_info;
+	}
+}