private Task OnPartyUpdate(PartyUpdateContract contract)
{
var party = new Party(contract.Party);
var memberIDs = party.Members
.Select(m => m.ID)
.ToImmutableList();
var users = GetUsers()
.Where(u => u.FieldUser != null)
.Select(u => u.FieldUser)
.Where(u => u.Party?.ID == party.ID || memberIDs.Contains(u.ID))
.ToImmutableList();
users.ForEach(u => u.Party = memberIDs.Contains(u.ID) ? party : null);
return(Task.CompletedTask);
}
public PartyService(
ICacheClient cache,
IMessageBus messenger,
IDataStore store,
IDispatchService dispatcher
)
{
_messenger = messenger;
_locker = new ScopedLockProvider(new CacheLockProvider(cache, messenger), PartyLockScope);
_dispatcher = dispatcher;
_repository = new PartyRepository(cache, store);
_channels = new List <ChannelWriter <PartyUpdateContract> >();
_ = _messenger.SubscribeAsync <PartyUpdateEvent>(async e =>
{
var contract = new PartyUpdateContract {
Party = e.Party.ToContract()
};
await Task.WhenAll(_channels.Select(async d => await d.WriteAsync(contract)));
});
}
