public async Task <Unit> Handle(StartConversationCommand request, CancellationToken cancellationToken)
{
var toss = await _session.LoadAsync <TossEntity>(_ravenDbIdUtil.GetRavenDbIdFromUrlId <TossEntity>(request.TossId));
// we fail silently, there is no point in managing error when user hacked the desired behavior, this might change in the future
if (toss == null)
{
throw new InvalidOperationException($"Toss does not exists : {request.TossId}");
}
var currentUser = await mediator.Send(new CurrentUserQuery());
if (currentUser.Id == toss.UserId)
{
throw new InvalidOperationException($"Cannot create conversation when toss creator : {request.TossId}");
}
if (await _session.Query <TossConversation>().AnyAsync(c => c.CreatorUserId == currentUser.Id && c.TossId == toss.Id))
{
throw new InvalidOperationException($"Conversation already exists. User : {currentUser}, Toss: {toss.Id}");
}
TossConversation conversation = new TossConversation(toss, currentUser);
await _session.StoreAsync(conversation);
await mediator.Publish(new ConversationStarted(conversation));
return(Unit.Value);
}
public ConversationMessageSended(TossConversation conversation, TossConversationMessage message)
{
Conversation = conversation;
Message = message;
}
public ConversationStarted(TossConversation conversation)
{
Conversation = conversation;
}