Sealed class for Download Manager Status

Download_Manager.kt

sealed class DownloadManagerStatus {

    sealed class DownloadStatus : DownloadManagerStatus() {

        sealed class StatusPaused : DownloadStatus() {
            object QueuedForWifi : StatusPaused()
            object WaitingForNetwork : StatusPaused()
            object WaitingToRetry : StatusPaused()
            object Unknown : StatusPaused()
        }

        sealed class StatusFailed : DownloadStatus() {
            object CannotResume : StatusFailed()
            object DeviceNotFound : StatusFailed()
            object FileAlreadyExists : StatusFailed()
            object FileError : StatusFailed()
            object HttpDataError : StatusFailed()
            object InsufficientSpace : StatusFailed()
            object TooManyRedirects : StatusFailed()
            object UnhandledHttpCode : StatusFailed()
            object Unknown : StatusFailed()
        }

        object StatusSuccessful : DownloadStatus()
        object StatusRunning : DownloadStatus()
        object StatusPending : DownloadStatus()
    }
}