Enable Mini Cart template-parts only for experimental builds

src/BlockTemplatesController.php

@@ -362,12 +362,14 @@ function ( $template ) use ( $template_slug ) {
 	 * @param array $slugs An array of slugs to retrieve templates for.
 	 * @param array $template_type wp_template or wp_template_part.
 	 *
-	 * @return array
+	 * @return array WP_Block_Template[] An array of block template objects.
 	 */
 	public function get_block_templates( $slugs = array(), $template_type = 'wp_template' ) {
 		$templates_from_db  = $this->get_block_templates_from_db( $slugs, $template_type );
 		$templates_from_woo = $this->get_block_templates_from_woocommerce( $slugs, $templates_from_db, $template_type );
-		return array_merge( $templates_from_db, $templates_from_woo );
+		$templates          = array_merge( $templates_from_db, $templates_from_woo );
+		return BlockTemplateUtils::filter_block_templates_by_feature_flag( $templates );
+
 	}
 
 	/**

src/Domain/Services/FeatureGating.php

@@ -137,4 +137,32 @@ public function is_production_environment() {
 	public function is_test_environment() {
 		return self::TEST_ENVIRONMENT === $this->environment;
 	}
+
+	/**
+	 * Returns core flag value.
+	 *
+	 * @return number
+	 */
+	public static function get_core_flag() {
+		return self::CORE_FLAG;
+	}
+
+	/**
+	 * Returns feature plugin flag value.
+	 *
+	 * @return number
+	 */
+	public static function get_feature_plugin_flag() {
+		return self::FEATURE_PLUGIN_FLAG;
+	}
+
+	/**
+	 * Returns experimental flag value.
+	 *
+	 * @return number
+	 */
+	public static function get_experimental_flag() {
+		return self::EXPERIMENTAL_FLAG;
+	}
+
 }

src/Utils/BlockTemplateUtils.php

@@ -1,6 +1,9 @@
 <?php
 namespace Automattic\WooCommerce\Blocks\Utils;
 
+use Automattic\WooCommerce\Blocks\Domain\Services\FeatureGating;
+
+
 /**
  * BlockTemplateUtils class used for serving block templates from Woo Blocks.
  * IMPORTANT: These methods have been duplicated from Gutenberg/lib/full-site-editing/block-templates.php as those functions are not for public usage.
@@ -433,4 +436,36 @@ public static function set_has_theme_file_if_fallback_is_available( $query_resul
 
 		return false;
 	}
+
+	/**
+	 * Filter block templates by feature flag.
+	 *
+	 * @param WP_Block_Template[] $block_templates An array of block template objects.
+	 *
+	 * @return WP_Block_Template[] An array of block template objects.
+	 */
+	public static function filter_block_templates_by_feature_flag( $block_templates ) {
+		$feature_gating = new FeatureGating();
+		$flag           = $feature_gating->get_flag();
+
+		/**
+		 * An array of block templates with slug as key and flag as value.
+		 *
+		 * @var array
+		*/
+		$block_templates_with_feature_gate = array(
+			'mini-cart' => $feature_gating->get_experimental_flag(),
+		);
+
+		return array_filter(
+			$block_templates,
+			function( $block_template ) use ( $flag, $block_templates_with_feature_gate ) {
+				if ( isset( $block_templates_with_feature_gate[ $block_template->slug ] ) ) {
+					return $block_templates_with_feature_gate[ $block_template->slug ] <= $flag;
+				}
+				return true;
+			}
+		);
+	}
+
 }