public async Task SendMessage(SendMessageViewModel message)
{
GetChannelByIdQueryResult channel = await _channelRepository.GetById(message.ChannelId);
if (channel is null)
{
return;
}
GetUserByIdQueryResult user = await _userRepository.GetById(message.SenderId);
if (user is null)
{
return;
}
var finalMessage = new Message
{
Content = message.Content,
Date = message.Date,
ChannelId = message.ChannelId,
Sender = new User
{
Id = user.Id,
Username = user.Username
}
};
await Clients.Group(message.ChannelId.ToString()).SendAsync("ReceiveMessage", finalMessage);
}
public async Task <ICommandResult> HandleAsync(JoinChannelCommand command)
{
command.Validate();
if (command.Invalid)
{
AddNotifications(command);
return(new CommandResult(false, "User could not join this channel", Errors));
}
GetUserByIdQueryResult user = await _userRepository.GetById(command.UserId);
if (user is null)
{
AddNotification(nameof(command.UserId), "User not found");
return(new CommandResult(false, "User not found", Errors));
}
GetChannelByIdQueryResult channel = await _channelRepository.GetById(command.ChannelId);
if (channel is null)
{
AddNotification(nameof(command.ChannelId), "Channel not found");
return(new CommandResult(false, "Channel not found", Errors));
}
bool userAlreadyIsMemeber = await _channelRepository.UserIsMemberOfChannel(user.Id, channel.Id);
if (userAlreadyIsMemeber)
{
AddNotification(nameof(command.ChannelId), "User already is member of this channel");
return(new CommandResult(false, "User could not join this channel", Errors));
}
await _channelRepository.AddUserToChannel(user.Id, channel.Id, false);
return(new CommandResult(true, "User successfully joined the channel", data: null));
}
public async Task <ICommandResult> HandleAsync(CreateChannelCommand command)
{
command.Validate();
if (command.Invalid)
{
AddNotifications(command);
return(new CommandResult(false, "Could not create channel", Errors));
}
GetUserByIdQueryResult user = await _userRepository.GetById(command.AdministratorId);
if (user is null)
{
AddNotification(nameof(command.AdministratorId), "User not found");
return(new CommandResult(false, "Could not create channel", Errors));
}
var administrator = new User(user.Id, user.Username);
var channel = new Channel(command.Name, command.Description, administrator);
AddNotifications(channel);
if (Invalid)
{
return(new CommandResult(false, "Could not create channel", Errors));
}
await _channelRepository.CreateChannel(channel);
await _channelRepository.AddUserToChannel(administrator.Id, channel.Id, true);
return(new CommandResult(true, "Channel succesfully created", new ChannelOutput
{
Id = channel.Id,
Name = channel.Name,
Description = channel.Description,
Administrator = new UserOutput
{
Id = administrator.Id,
Username = administrator.Username
}
}));
}
