i have an UI for assigning a UserRole. the list of user roles is queried from the DB (flow) and expo...

# compose

[Christoph Wiesner]

i have an UI for assigning a UserRole.
the list of user roles is queried from the DB (flow) and exposed as a uiState in the ViewModel.
the selected role is a mutable state

private var currentRoleSelection = mutableStateOf<UserRole>(null)

i want to have a initial selection for currentRoleSelection (let's say the first role in the list)
but i have to wait for the userRoles to be queried from the DB

val uiState: StateFlow<UiState> = combine(   
   userRoles, // Flow<UserRole>
//other flows,
   snapshotFlow { currentRole }
) { ... -> }

how would i set the mutableState once the DB roles are queried?
do i need to "convert" that userRoles to a state as well in order to use sth like derivedStateOf{}?