Example.kt

package la.devpicon.android.composenavigationapplication

import androidx.compose.runtime.Composable
import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.getValue
import androidx.compose.ui.Modifier
import androidx.lifecycle.ViewModel
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.asStateFlow

@Composable
fun Stateful(
    viewModel: MyViewModel,
    modifier: Modifier = Modifier
) {
    val state by viewModel.viewState.collectAsState()

    Stateless(
        state = state,
        onClick = viewModel::updateName
    )
}

@Composable
fun Stateless(
    state: MyState,
    onClick: () -> Unit,
    modifier: Modifier = Modifier,
) {

}


class MyViewModel() : BaseViewModel<MyState, MyEvent, MyEffect>() {
    override fun getInitialState(): MyState {
        return MyState(name = "default")
    }

    fun updateName() {
        TODO("Not yet implemented")
    }


}

abstract class BaseViewModel<STATE : UiState, in EVENT : UiEvent, EFFECT : UiEffect> : ViewModel() {
    private val _viewState = MutableStateFlow<STATE>(getInitialState())
    val viewState = _viewState.asStateFlow()
    abstract fun getInitialState(): STATE
}

data class MyState(
    val name: String
) : UiState

sealed class MyEvent : UiEvent

sealed class MyEffect : UiEffect

interface UiState

interface UiEvent

interface UiEffect