BP_XProfile_Group::fetch_visibility_level( int $user_id, array $fields = array() )

	public static function fetch_visibility_level( $user_id = 0, $fields = array() ) {

		// Get the user's visibility level preferences.
		$visibility_levels = bp_get_user_meta( $user_id, 'bp_xprofile_visibility_levels', true );

		foreach( (array) $fields as $key => $field ) {

			// Does the admin allow this field to be customized?
			$visibility   = bp_xprofile_get_meta( $field->id, 'field', 'allow_custom_visibility' );
			$allow_custom = (bool) ( 'disabled' !== $visibility );

			// Look to see if the user has set the visibility for this field.
			if ( ( true === $allow_custom ) && isset( $visibility_levels[ $field->id ] ) ) {
				$field_visibility = $visibility_levels[ $field->id ];

			// If no admin-set default is saved, fall back on a global default.
			} else {
				$fallback_visibility = bp_xprofile_get_meta( $field->id, 'field', 'default_visibility' );

				/**
				 * Filters the XProfile default visibility level for a field.
				 *
				 * @since BuddyPress 1.6.0
				 *
				 * @param string $value Default visibility value.
				 */
				$field_visibility = ! empty( $fallback_visibility )
					? $fallback_visibility
					: apply_filters( 'bp_xprofile_default_visibility_level', 'public' );
			}

			$fields[ $key ]->visibility_level = $field_visibility;
		}

		return $fields;
	}