BaseUseCase.kt

abstract class BaseUseCase<out Type, in Params> where Type : Any {

    abstract suspend fun run(params: Params): Either<Failure, Type>

    open operator fun invoke(
        scope: CoroutineScope, 
        params: Params, 
        onResult: (Either<Failure, Type>) -> Unit = {}
    ) {
        val backgroundJob = scope.async { run(params) }
        scope.launch { onResult(backgroundJob.await()) }
    }
}