social-media/backend/src/Web/Features/Users/Handlers/ChangeAlias.cs

using Hutopy.Web.Common.Security;

namespace Hutopy.Web.Features.Users.Handlers;

[PublicAPI]
public record ChangeAliasRequest(
    string? Alias);

[PublicAPI]
public class ChangeAliasHandler(
    IdentityUserManager userManager)
    : Endpoint<ChangeAliasRequest>
{
    public override void Configure()
    {
        Post("/api/users/alias");
        Options(o => o.WithTags("Users"));
    }

    public override async Task HandleAsync(
        ChangeAliasRequest request,
        CancellationToken ct)
    {
        var user = await userManager.FindByIdAsync(HttpContext.User.GetUserId().ToString());

        if (user is null)
        {
            await SendNotFoundAsync(ct);
            return;
        }

        user.Alias = request.Alias;

        var result = await userManager.UpdateAsync(user);

        if (result.Succeeded)
            await SendOkAsync(ct);
        else
            await SendUnauthorizedAsync(ct);
    }
}