add new filters

src/Feed/FeedBuilder/FeedBuilder.php

@@ -164,6 +164,14 @@ public function render_feed( $lang = null ): void {
 	 * @return bool|\WP_Error
 	 */
 	protected function write_products_feed( string $file_path, array $products ) {
+
+		/**
+		 * Filter the list of products to be written to the feed.
+		 *
+		 * @param \WC_Product[] $products
+		 */
+		$products = apply_filters( 'shopping_feed_products_for_feed', $products );
+
 		$products_list = Products::get_instance()->format_products( $products );
 		try {
 			$generator = Generator::make( $file_path );

src/Orders/Order/Products.php

@@ -82,6 +82,16 @@ private function mapping_product( $sf_product, $references_aliases = [] ) {
 		$wc_product_id      = $references_aliases[ $sf_product->getReference() ] ?? $sf_product->getReference();
 
 		if ( 'sku' === $product_identifier ) {
+
+			/**
+			 * Filter the SKU from the ShoppingFeed order.
+			 *
+			 * @param string $wc_product_id
+			 * @param OrderItem $sf_product
+			 * @param array $references_aliases
+			 */
+			$wc_product_id = apply_filters( 'shopping_feed_order_products_product_sku', $wc_product_id, $sf_product, $references_aliases );
+
 			$wc_product_id = wc_get_product_id_by_sku( $wc_product_id );
 			if ( ! $wc_product_id ) {
 				return array();

src/Orders/Order/Shipping.php

@@ -99,6 +99,15 @@ private function set_shipping_rate() {
 			return;
 		}
 		$shipping_rate = ShoppingFeedHelper::get_wc_shipping_from_sf_carrier( $this->method );
+
+		/**
+		 * Filter the shipping method data used when creating the shipping rates.
+		 *
+		 * @param array $shipping_rate the shipping method data.
+		 * @param OrderResource $sf_order the ShoppingFeed order.
+		 */
+		$shipping_rate = apply_filters( 'shopping_feed_order_shipping_rate', $shipping_rate, $this->sf_order );
+
 		if ( empty( $shipping_rate ) ) {
 			$shipping_rate = $default_shipping_method;
 		}

src/ShoppingFeedHelper.php

@@ -56,27 +56,49 @@ public static function get_wc_version() {
 	}
 
 	/**
-	 * Return the feed's directory
+	 * Return the feed's directory.
+	 *
 	 * @return string
 	 */
 	public static function get_feed_directory() {
-		return SF_FEED_DIR;
+		/**
+		 * Filter the path to the directory where product feeds are stored.
+		 *
+		 * @param string $path Path to the directory.
+		 */
+		return (string) apply_filters( 'shopping_feed_feed_directory_path', SF_FEED_DIR );
 	}
 
 	/**
-	 * Return the feed's parts directory
+	 * Return the feed's parts directory.
+	 *
 	 * @return string
 	 */
 	public static function get_feed_parts_directory() {
-		return SF_FEED_PARTS_DIR;
+		/**
+		 * Filter the path to the directory where product feeds parts are stored.
+		 *
+		 * @param string $path Path to the directory.
+		 */
+		return (string) apply_filters( 'shopping_feed_feed_parts_directory_path', SF_FEED_PARTS_DIR );
 	}
 
 	/**
-	 * Return the feed's file name
+	 * Return the feed's file name.
+	 *
+	 * The filename doesn't contain the file extension.
+	 *
 	 * @return string
 	 */
 	public static function get_feed_filename() {
-		return 'products';
+		/**
+		 * Filter the product feed's filename.
+		 *
+		 * The filename must not contain the file extension.
+		 *
+		 * @param string $path Feed's filename.
+		 */
+		return (string) apply_filters( 'shopping_feed_feed_filename', 'products' );
 	}
 
 	/**

tests/wpunit/Feed/HelperFunctionsTest.php

@@ -0,0 +1,83 @@
+<?php
+
+namespace ShoppingFeed\ShoppingFeedWC\Tests\wpunit\Feed;
+
+use ShoppingFeed\ShoppingFeedWC\ShoppingFeedHelper;
+
+class HelperFunctionsTest extends \Codeception\TestCase\WPTestCase {
+
+	private static $upload_dir;
+
+	public static function setUpBeforeClass(): void {
+		self::$upload_dir = wp_upload_dir();
+	}
+
+	public function test_get_feed_directory() {
+		$this->assertEquals(
+			self::$upload_dir['basedir'] . '/shopping-feed',
+			ShoppingFeedHelper::get_feed_directory()
+		);
+	}
+
+	public function test_get_feed_directory_filter() {
+		$custom_feed_directory = '/tmp/shopping-feed';
+
+		add_filter(
+			'shopping_feed_feed_directory_path',
+			function ( $dir ) use ( $custom_feed_directory ) {
+				return $custom_feed_directory;
+			}
+		);
+
+		$this->assertEquals(
+			$custom_feed_directory,
+			ShoppingFeedHelper::get_feed_directory()
+		);
+	}
+
+	public function test_get_feed_part_directory() {
+		$this->assertEquals(
+			self::$upload_dir['basedir'] . '/shopping-feed/parts',
+			ShoppingFeedHelper::get_feed_parts_directory()
+		);
+	}
+
+	public function test_get_feed_part_directory_filter() {
+		$custom_feed_directory = '/tmp/shopping-feed-parts';
+
+		add_filter(
+			'shopping_feed_feed_parts_directory_path',
+			function ( $dir ) use ( $custom_feed_directory ) {
+				return $custom_feed_directory;
+			}
+		);
+
+		$this->assertEquals(
+			$custom_feed_directory,
+			ShoppingFeedHelper::get_feed_parts_directory()
+		);
+	}
+
+	public function test_get_feed_filename() {
+		$this->assertEquals(
+			'products',
+			ShoppingFeedHelper::get_feed_filename()
+		);
+	}
+
+	public function test_get_feed_filename_filter() {
+		$custom_feed_filename = 'custom-products';
+
+		add_filter(
+			'shopping_feed_feed_filename',
+			function ( $filename ) use ( $custom_feed_filename ) {
+				return $custom_feed_filename;
+			}
+		);
+
+		$this->assertEquals(
+			$custom_feed_filename,
+			ShoppingFeedHelper::get_feed_filename()
+		);
+	}
+}