femto-backend/Femto.Modules.Auth/Application/Interface/Register/RegisterCommandHandler.cs

43 lines
1.3 KiB
C#

using Femto.Common.Domain;
using Femto.Modules.Auth.Application.Dto;
using Femto.Modules.Auth.Data;
using Femto.Modules.Auth.Models;
using Microsoft.EntityFrameworkCore;
namespace Femto.Modules.Auth.Application.Interface.Register;
internal class RegisterCommandHandler(AuthContext context)
: ICommandHandler<RegisterCommand, UserInfo>
{
public async Task<UserInfo> Handle(RegisterCommand request, CancellationToken cancellationToken)
{
var now = DateTimeOffset.UtcNow;
var code = await context
.SignupCodes.Where(c => c.Code == request.SignupCode)
.Where(c => c.ExpiresAt == null || c.ExpiresAt > now)
.Where(c => c.RedeemingUserId == null)
.SingleOrDefaultAsync(cancellationToken);
if (code is null)
throw new DomainError("invalid signup code");
var usernameTaken = await context.Users.AnyAsync(
u => u.Username == request.Username,
cancellationToken
);
if (usernameTaken)
throw new DomainError("username taken");
var user = new UserIdentity(request.Username);
await context.AddAsync(user, cancellationToken);
user.SetPassword(request.Password);
code.Redeem(user.Id);
return new UserInfo(user);
}
}