using Hutopy.Modules.Identity.Data;
using Hutopy.Modules.Identity.Services;

namespace Hutopy.Modules.Identity.Handlers;

[PublicAPI]
public record ResendVerificationRequest(
    string Email);

[PublicAPI]
public record ResendVerificationResponse(
    string Message);

[PublicAPI]
public class ResendVerificationHandler(
    EmailVerificationService emailWriter,
    UserManager userManager)
    : Endpoint<ResendVerificationRequest, ResendVerificationResponse>
{
    public override void Configure()
    {
        AllowAnonymous();
        Post("/api/users/resend-verification");
        Options(o => o.WithTags("Users"));
    }

    public override async Task HandleAsync(
        ResendVerificationRequest request,
        CancellationToken ct)
    {
        // Find a user by email
        User? user = await userManager.FindByEmailAsync(request.Email);
        if (user is null)
        {
            // Don't reveal that the user doesn't exist
            await SendOkAsync(
                new ResendVerificationResponse(
                    "If your email exists in our system, a verification link has been sent."),
                ct);
            return;
        }

        // Check if the email is already confirmed
        if (user.EmailConfirmed)
        {
            await SendOkAsync(
                new ResendVerificationResponse("Your email is already verified. You can log in."),
                ct);
            return;
        }

        await emailWriter.SendVerificationEmailAsync(user);

        await SendOkAsync(
            new ResendVerificationResponse("If your email exists in our system, a verification link has been sent."),
            ct);
    }
}