add namespace to Interactivity API

src/BlockTypes/ProductButton.php

@@ -2,6 +2,7 @@
 namespace Automattic\WooCommerce\Blocks\BlockTypes;
 
 use Automattic\WooCommerce\Blocks\Utils\StyleAttributesUtils;
+use Automattic\WooCommerce\Blocks\Interactivity\WC_Interactivity_Store;
 
 /**
  * ProductButton class.
@@ -107,7 +108,7 @@ protected function render( $attributes, $content, $block ) {
 				)
 			);
 
-			wc_store(
+			WC_Interactivity_Store::wc_store(
 				array(
 					'state' => array(
 						'woocommerce' => array(

src/Interactivity/class-wc-interactivity-store.php

@@ -1,11 +1,12 @@
 <?php
+namespace Automattic\WooCommerce\Blocks\Interactivity;
+
 /**
  * Manages the initial state of the Interactivity API store in the server and
  * its serialization so it can be restored in the browser upon hydration.
  *
  * It's a private class, exposed by other functions, like `wc_store`.
  *
- * @access private
  */
 class WC_Interactivity_Store {
 	/**
@@ -20,7 +21,7 @@ class WC_Interactivity_Store {
 	 *
 	 * @return array
 	 */
-	static function get_data() {
+	static private function get_data() {
 		return self::$store;
 	}
 
@@ -29,7 +30,7 @@ static function get_data() {
 	 *
 	 * @param array $data The data that will be merged with the exsisting store.
 	 */
-	static function merge_data( $data ) {
+	static private function merge_data( $data ) {
 		self::$store = array_replace_recursive( self::$store, $data );
 	}
 
@@ -40,6 +41,20 @@ static function reset() {
 		self::$store = array();
 	}
 
+	/**
+	 * Merge data with the exsisting store.
+	 *
+	 * @param array $data Data that will be merged with the exsisting store.
+	 *
+	 * @return $data The current store data.
+	 */
+	static public function wc_store($data) {
+		if ( $data ) {
+			self::merge_data( $data );
+		}
+		return self::get_data();
+	}
+
 	/**
 	 * Render the store data.
 	 */

src/Interactivity/store.php

@@ -1,18 +1,4 @@
 <?php
-/**
- * Merge data with the exsisting store.
- *
- * @param array $data Data that will be merged with the exsisting store.
- *
- * @return $data The current store data.
- */
-function wc_store( $data = null ) {
-	if ( $data ) {
-		WC_Interactivity_Store::merge_data( $data );
-	}
-	return WC_Interactivity_Store::get_data();
-}
-
 /**
  * Render the Interactivity API store in the frontend.
  */