sergenes

    fun addNewRow(runAfter: () -> Unit) {
        onAction(ListScreenActions.OnAddNewRow, runAfter = runAfter)
    }
    
    fun editNewRow() { onAction(ListScreenActions.OnAddNewRowChanged) }

sergenes

fun editName() { onAction(ListScreenActions.OnNameEdit) }

fun editNameChanged() { onAction(ListScreenActions.OnNameChanged)}

sergenes

   private fun onAction( action: ListScreenActions, 
       runBefore: () -> Unit = {},
       runAfter: () -> Unit = {}
    ) {
        if (state() == action.source) {
            runBefore()
            screenState.value = action.target
            runAfter()
        }
     }

sergenes

class ScreenModel {
    private lateinit var screenState: MutableState<ListScreenState>
  
    @Composable
    fun Init(state: ListScreenState = Idle) {
        screenState = remember {
            mutableStateOf(state)
        }
    }

sergenes

sealed class ListScreenActions(
  val source: ListScreenState, 
  val target: ListScreenState
) {
    object OnNameEdit : ListScreenActions(Idle, NameEdit)
    
    object OnNameChanged : ListScreenActions(NameEdit, NameChanged)
    
    object OnAddNewRow : ListScreenActions(Idle, RowNew)
    

sergenes

object RowEditChanged : ListScreenState(RowEdit) {
    override val editButtonTitle = "Save"
    override val isAddButtonVisible = false
    override val isTableVisible = false
}

object RowNewChanged : ListScreenState(RowNew) {
    override val editButtonTitle = "Save"
    override val isAddButtonVisible = false
    override val isTableVisible = false

sergenes

object RowEdit : ListScreenState() {
    override val editButtonTitle = "Done"
    override val isAddButtonVisible = false
    override val isTableVisible = false
}

object RowNew : ListScreenState() {
    override val editButtonTitle = "Done"
    override val isAddButtonVisible = false
    override val isTableVisible = false

sergenes

object NameChanged : ListScreenState(NameEdit) {
    override val editButtonTitle = "Save"
    override val isAddButtonVisible = false
    override val isEditNameMode = true
}

sergenes

object NameEdit : ListScreenState() {
    override val editButtonTitle = "Done"
    override val isAddButtonVisible = false
    override val isEditNameMode = true
}

sergenes

sealed class ListScreenState(
    val back: ListScreenState? = Idle
){
    open val editButtonTitle = "Edit"
    open val isAddButtonVisible = true
    open val isEditNameMode = false
    open val isTableVisible= true
      
    object Idle : ListScreenState()