public static CounterState Reducer(CounterState state, IAction action)
{
switch (action)
{
case IncrementCounterAction a:
return(new CounterState(state)
{
Count = (state?.Count ?? 0) + 1
});
case DecrementCounterAction a:
return(new CounterState(state)
{
Count = (state?.Count ?? 0) - 1
});
case StartCounterAction a:
return(new CounterState(state)
{
Started = true
});
case StopCounterAction a:
return(new CounterState(state)
{
Started = false
});
case SyncCounterStateAction a:
return(a.CounterState);
default:
return(state);
}
}
public CounterState(CounterState other)
{
if (other == null)
{
this.Count = 0;
this.Started = false;
}
else
{
this.Count = other.Count;
this.Started = other.Started;
}
}