private static User ImmutableApply(User state, EventBase @event)
{
var alreadyRegistered = string.IsNullOrWhiteSpace(state.UserId);
return(@event switch {
NoopEvent _ => state,
RoomAssigned _ => state,
UserRegistered registered => alreadyRegistered ? state : new User {
UserId = registered.UserId, FirstName = registered.FirstName, LastName = registered.LastName
},
UserChangedName changedName => alreadyRegistered ? new User {
UserId = changedName.UserId, FirstName = changedName.FirstName, LastName = changedName.LastName, TimesVoted = state.TimesVoted
} : state,
UserVoted voted => alreadyRegistered ? new User {
UserId = state.UserId, FirstName = state.FirstName, LastName = state.LastName, TimesVoted = ++state.TimesVoted
} : state,
_ => state
});
public void Apply(RoomAssigned aggregateEvent)
{
}
