bp_attachments_uploads_dir_get( string $data = '' )

function bp_attachments_uploads_dir_get( $data = '' ) {
	$attachments_dir = 'buddypress';
	$retval          = '';

	if ( 'dir' === $data ) {
		$retval = $attachments_dir;
	} else {
		$upload_data = bp_upload_dir();

		// Return empty string, if Uploads data are not available.
		if ( ! $upload_data ) {
			return $retval;
		}

		// Build the Upload data array for BuddyPress attachments.
		foreach ( $upload_data as $key => $value ) {
			if ( 'basedir' === $key || 'baseurl' === $key ) {
				$upload_data[ $key ] = trailingslashit( $value ) . $attachments_dir;

				// Fix for HTTPS.
				if ( 'baseurl' === $key && is_ssl() ) {
					$upload_data[ $key ] = str_replace( 'http://', 'https://', $upload_data[ $key ] );
				}
			} else {
				unset( $upload_data[ $key ] );
			}
		}

		// Add the dir to the array.
		$upload_data['dir'] = $attachments_dir;

		if ( empty( $data ) ) {
			$retval = $upload_data;
		} elseif ( isset( $upload_data[ $data ] ) ) {
			$retval = $upload_data[ $data ];
		}
	}

	/**
	 * Filter here to edit the Attachments upload dir data.
	 *
	 * @since BuddyPress 2.4.0
	 *
	 * @param string|array $retval The needed Upload dir data or the full array of data
	 * @param string       $data   The data requested
	 */
	return apply_filters( 'bp_attachments_uploads_dir_get', $retval, $data );
}