public async Task <CreateMutationResponse <User> > SignUp(
SignupInput input,
[Service] SlackCloneDbContext dbContext,
CancellationToken cancellationToken)
{
try
{
string salt = Guid.NewGuid().ToString("N");
using var sha = SHA512.Create();
byte[] hash = sha.ComputeHash(Encoding.UTF8.GetBytes(input.Password + salt));
var user = new User
{
Email = input.Email,
PasswordHash = Convert.ToBase64String(hash),
Salt = salt,
DisplayName = input.DisplayName
};
dbContext.Users.Add(user);
await dbContext.SaveChangesAsync(cancellationToken);
return(new CreateMutationResponse <User>(true, user));
}
catch (DbUpdateException e)
{
throw new QueryException($"DbUpdateException error details - {e?.InnerException?.Message}");
}
}
public async Task <CreateMutationResponse <Channel> > CreateChannel(
CreateChannelInput input,
[GlobalState] string currentUserEmail,
[Service] SlackCloneDbContext dbContext,
[Service] ITopicEventSender eventSender,
CancellationToken cancellationToken)
{
try
{
if (string.IsNullOrEmpty(input.Name))
{
throw new QueryException(
ErrorBuilder.New()
.SetMessage("The channel name can not be null.")
.SetCode("INVALID_INPUT")
.Build());
}
var channel = new Channel()
{
Name = input.Name,
Description = input.Description,
CreatedAt = DateTime.UtcNow,
CreatedByEmail = currentUserEmail
};
dbContext.Channels.Add(channel);
await dbContext.SaveChangesAsync(cancellationToken);
bool ok = true;
await eventSender.SendAsync("channelCreated", channel, cancellationToken).ConfigureAwait(false);
return(new CreateMutationResponse <Channel>(ok, channel));
}
catch (DbUpdateException e)
{
throw new QueryException($"DbUpdateException error details - {e?.InnerException?.Message}");
}
}
public async Task <AddMessageToChannelResponse> AddMessageToChannel(
AddMessageToChannelInput input,
[GlobalState] string currentUserEmail,
[Service] SlackCloneDbContext dbContext,
[Service] ITopicEventSender eventSender,
CancellationToken cancellationToken)
{
var message = new ChannelMessage
{
Id = Guid.NewGuid(),
ChannelId = input.ChannelId,
Text = input.Text,
CreatedAtUTC = DateTime.UtcNow,
CreatedByEmail = currentUserEmail,
Likes = 0
};
dbContext.ChannelMessages.Add(message);
await dbContext.SaveChangesAsync(cancellationToken);
await eventSender.SendAsync(input.ChannelId, message, cancellationToken).ConfigureAwait(false);
return(new AddMessageToChannelResponse(true));
}