Confirm close ModalBottomSheet end state

MainActivity.kt

val coroutineScope = rememberCoroutineScope()
var items by rememberSaveable { mutableStateOf(listOf<String>()) }
var showAddSheet by rememberSaveable { mutableStateOf(false) }
var showConfirmChanges by rememberSaveable { mutableStateOf(false) }
val addSheetState = rememberModalBottomSheetState(
  confirmValueChange = {
      if (it == SheetValue.Hidden) {
          showConfirmChanges = true
          false
      } else {
          // We're expanding the sheet so we always return true
          true
      }
  }
)
Scaffold(...) { innerPadding ->
  ShoppingList(
      items = items,
      onAddItemClick = { showAddSheet = true },
      modifier = Modifier.fillMaxSize().padding(innerPadding)
  )

  if (showAddSheet) {
    ModalBottomSheet(
      onDismissRequest = { showConfirmChanges = true },
      sheetState = addSheetState,
      modifier = Modifier
    ) {
      BottomSheetContent(
        onSaveClick = {
          items = items.plus(it)
          coroutineScope.launch {
              addSheetState.hide()
          }.invokeOnCompletion {
            if (!addSheetState.isVisible) {
                showAddSheet = false
            }
          }
        }
      )
    }
  }

  if (showConfirmChanges) {
    AlertDialog(
      onDismissRequest = { showConfirmChanges = false },
      title = { Text(stringResource(R.string.confirm_changes_title)) },
      text = { Text(stringResource(R.string.confirm_changes_text)) },
      confirmButton = {
        TextButton(onClick = {
          coroutineScope.launch {
              addSheetState.hide()
          }.invokeOnCompletion {
              if (!addSheetState.isVisible) {
                  showAddSheet = false
              }
          }
          showConfirmChanges = false
        }) {
          Text(stringResource(R.string.confirm_changes_confirm))
        }
      },
      dismissButton = {
        TextButton(onClick = {
          showConfirmChanges = false
        }) {
          Text(stringResource(R.string.confirm_changes_dismiss))
        }
      },
      properties = DialogProperties(
        dismissOnBackPress = false,
        dismissOnClickOutside = false
      )
    )
  }
}