BuddyPress.org

I am going to create a new custom notification for a user that if someone mention the user in any review with @, the related user will get a email and a new notification has been generated, this notification I created dynamically, but I get empty message showing on user profile notification area, I checked the db_table for notification as well it has proper entries as well,

$description = apply_filters_ref_array( 'bp_notifications_get_notifications_for_user', array( $notification->component_action, $notification->item_id, $notification->secondary_item_id, 1, 'string', $notification->component_action, $notification->component_name, $notification->id ) );

In the above line I found that ‘bp_notifications_get_notifications_for_user’ filter return me the empty description of my notification from line no 523 in function “bp_get_the_notification_description” of file buddypress/bp-notifications/bp-notifications-template.php

Below is my custom code for generate notification:

//add new notification mention_in_comment
function mention_in_comment_filter_notifications_publish_post_get_registered_components( $component_names = array() ) {
 
    // Force $component_names to be an array
    if ( ! is_array( $component_names ) ) {
        $component_names = array();
    }
 
    // Add 'custom' component to registered components array
    array_push( $component_names, 'mention_in_comment' );
 
    // Return component's with 'custom' appended
    return $component_names;
}
add_filter( 'bp_notifications_get_registered_components', 'mention_in_comment_filter_notifications_publish_post_get_registered_components' );

//show new notification text
function bp_mention_in_comment_format_buddypress_notifications( $action, $item_id, $secondary_item_id, $total_items, $format = 'string' ) {
    // New custom notifications
    if ( 'mention_in_comment_action' === $action ) {
      
        $comment_info = get_comment( $item_id );
        $author_name = ($comment_info->user_id) ? get_the_author_meta( 'display_name', $comment_info->user_id ) : $comment_info->comment_author; 
        $custom_title = $author_name. ' mentioned you in a new comment on '.get_the_title($comment_info->comment_post_ID);
        $custom_link  = get_comment_link( $comment_info->comment_ID );
        $custom_text = $author_name. ' mentioned you in a new comment: <br/>' . $comment_info->comment_content;
 
        // WordPress Toolbar
        if ( 'string' === $format ) {
            $return = apply_filters( 'mention_in_comment_filter', '' . esc_html( $custom_text ) . '', $custom_text, $custom_link );
 
        // Deprecated BuddyBar
        } else {
            $return = apply_filters( 'mention_in_comment_filter', array(
                'text' => $custom_text,
                'link' => $custom_link
            ), $custom_link, (int) $total_items, $custom_text, $custom_title );
        } 
        //var_dump($return);
        return "Just say hello.";        
    }    
}
add_filter( 'bp_notifications_get_notifications_for_user', 'bp_mention_in_comment_format_buddypress_notifications', 1, 5 );

 //add notification to the mentioned user
    $notification = bp_notifications_add_notification( array(
                      'user_id'           => $user_id,
                      'item_id'           => $comment->comment_ID,
                      'secondary_item_id' => $user_id,
                      'component_name'    => 'mention_in_comment',
                      'component_action'  => 'mention_in_comment_action',
                      'date_notified'     => bp_core_current_time(),
                      'is_new'            => 1) );

Could you please let me knwo what is wrong with my code or something else, how can more debug and solve this.