list states.kt

fun ListState.render(): Unit? = when (this) {
    is ListState.Screen -> {
        when(loadingMode) {
            ListState.Mode.REFRESH -> { swipeRefreshLayout.isRefreshing = true }
            ListState.Mode.LOAD_MORE -> adapter.showFooter()
            ListState.Mode.IDLE_LOAD_MORE -> {
                adapter.addItems(giphies)
                isLoading = false

                restoreRecyclerView(giphies)
            }
            ListState.Mode.IDLE_REFRESH -> {
                swipeRefreshLayout.isRefreshing = false
                adapter.list = giphies
                isLoading = false

                restoreRecyclerView(giphies)
            }
        }
    }
    is ListState.Error -> {
        swipeRefreshLayout.isRefreshing = false
        showSnackbar(errorMessage)
    }
    is ListState.GoToDetail -> view
        ?.findNavController()
        ?.navigate(R.id.action_giphyListFragment_to_giphyDetailFragment,
            GiphyDetailFragment.getBundle(giphy))
        ?.also {
            pendingRestore = recyclerView.layoutManager?.onSaveInstanceState()
        }
}