Promote with Blaze: Purge cache on Atomic sites when site visibility changes

projects/plugins/wpcomsh/changelog/fix-atomic-promote-with-blaze

@@ -0,0 +1,4 @@
+Significance: patch
+Type: fixed
+
+Purge the cache when the site visibility changes on Atomic sites

projects/plugins/wpcomsh/feature-plugins/blaze.php

@@ -6,6 +6,8 @@
  * @package wpcomsh
  */
 
+use Automattic\Jetpack\Connection\Manager as Jetpack_Connection;
+
 /**
  * Activate the Blaze module
  * If you use a version of Jetpack that supports it,
@@ -61,5 +63,57 @@ function wpcomsh_activate_blaze_module_on_launching( $old_value, $new_value ) {
 	if ( $blog_public === 1 ) {
 		wpcomsh_activate_blaze_module();
 	}
+
+	return $new_value;
 }
 add_filter( 'update_option_blog_public', 'wpcomsh_activate_blaze_module_on_launching', 10, 2 );
+
+/**
+ * Delete the transient for the given site id.
+ *
+ * @return void
+ */
+function wpcomsh_blaze_purge_transient_cache() {
+	$site_id = Jetpack_Connection::get_site_id();
+
+	if ( is_wp_error( $site_id ) ) {
+		return;
+	}
+
+	$transient = 'jetpack_blaze_site_supports_blaze_' . $site_id;
+	delete_transient( $transient );
+}
+
+/**
+ * Delete the caching transient when coming soon is changed.
+ */
+add_action(
+	'pre_update_option_wpcom_public_coming_soon',
+	function ( $option ) {
+		wpcomsh_blaze_purge_transient_cache();
+		return $option;
+	}
+);
+
+/**
+ * Delete the caching transient when the blog visibility option changes.
+ */
+add_action(
+	'pre_update_option_blog_public',
+	function ( $option ) {
+		wpcomsh_blaze_purge_transient_cache();
+		return $option;
+	}
+);
+
+/**
+ * On Atomic sites the Promote with Blaze option is enabled.
+ *
+ * @phan-suppress PhanUndeclaredFunctionInCallable -- jetpack_blaze_post_row_actions_disable is part of jetpack.
+ */
+add_action(
+	'jetpack_modules_loaded',
+	function () {
+		remove_filter( 'jetpack_blaze_post_row_actions_enable', 'jetpack_blaze_post_row_actions_disable' );
+	}
+);