public SubcribeToSubResponse Handle(SubcribeToSub command)
{
var response = new SubcribeToSubResponse();
try
{
var user = _membershipService.GetUserByUserName(command.UserName);
if (user == null)
{
response.Error = "Invalid user.";
return(response);
}
var sub = command.SubId.HasValue ? _subService.GetSubById(command.SubId.Value) : _subService.GetSubByName(command.SubName);
if (sub == null)
{
response.Error = "Invalid sub name.";
return(response);
}
// todo: check for private subs
// todo: check if the user is subcribed to too many subs
var subscribedSubs = _subService.GetSubscribedSubsForUser(user.Id);
if (subscribedSubs.Contains(sub.Id))
{
// already subscribed!
response.Success = true;
return(response);
}
if (subscribedSubs.Count >= _subSettings.Settings.MaximumNumberOfSubscribedSubs)
{
response.Error = "You cannot have more than " + _subSettings.Settings.MaximumNumberOfSubscribedSubs + " subscribed subs.";
return(response);
}
_subService.SubscribeToSub(user.Id, sub.Id);
_eventBus.Publish(new SubScriptionChanged
{
Subcribed = true,
UserId = user.Id,
SubId = sub.Id
});
response.Success = true;
}
catch (Exception ex)
{
response.Error = ex.Message;
return(response);
}
return(response);
}
