public async Task <LoadMessagesOperationResult> LoadMessagesAsync(int?top = null)
{
IEnumerable <ChatMessage> messages;
try
{
messages = await _chatMessagesRepository.GetMessagesAsync(top);
}
catch (Exception ex)
{
return(ServerOperationResult.Failure <LoadMessagesOperationResult>(ex.Message));
}
return(new LoadMessagesOperationResult
{
Messages = messages
});
}
public async Task <LoginOperationResult> LoginAsync(string login, string password)
{
var clientCallback = OperationContext.Current.GetCallbackChannel <IClientCallback>();
CheckAlreadyLoggedInAsync(login);
User user;
try
{
user = await _usersRepository.LoginAsync(login, password);
}
catch (Exception ex)
{
return(ServerOperationResult.Failure <LoginOperationResult>(ex.Message));
}
return(user == null
? ServerOperationResult.Failure <LoginOperationResult>("Не верный логин или пароль.")
: Login(user, clientCallback));
}
public async Task <SendMessageOperationResult> SendMessageAsync(ChatMessage message, bool save = true)
{
if (save)
{
try
{
await _chatMessagesRepository.AddMessageAsync(message);
}
catch (Exception ex)
{
return(ServerOperationResult.Failure <SendMessageOperationResult>(ex.Message));
}
}
foreach (var clientInfo in _clients.Where(c => c.Value.User.Id != message.UserId))
{
clientInfo.Value.Callback.SetMessage(message);
}
return(new SendMessageOperationResult());
}
public async Task <LoginOperationResult> RegisterAsync(string userName, string login, string password)
{
var clientCallback = OperationContext.Current.GetCallbackChannel <IClientCallback>();
User user;
try
{
var loginExists = await _usersRepository.CheckLoginExists(login);
if (loginExists)
{
return(ServerOperationResult.Failure <LoginOperationResult>($"Логин {login} уже зарегистрирован."));
}
user = await _usersRepository.RegisterAsync(userName, login, password);
}
catch (Exception ex)
{
return(ServerOperationResult.Failure <LoginOperationResult>(ex.Message));
}
return(Login(user, clientCallback));
}