using Hutopy.Web.Common;
using Hutopy.Web.Common.BlobStorage;
using Hutopy.Web.Common.Security;

namespace Hutopy.Web.Features.Users.Handlers;

[PublicAPI]
public record ChangePortraitRequest(
    IFormFile File);

[PublicAPI]
public record ChangePortraitResponse(
    string BlobUrl);

[PublicAPI]
public sealed class ChangePortraitRequestValidator : Validator<ChangePortraitRequest>
{
    public ChangePortraitRequestValidator()
    {
        RuleFor(x => x.File)
            .NotNull()
            .NotEmpty();
    }
}

[PublicAPI]
public class ChangePortraitHandler(
    ApplicationUserManager userManager,
    AzureBlobStorage blobStorage)
    : Endpoint<ChangePortraitRequest, ChangePortraitResponse>
{
    public override void Configure()
    {
        Post("/api/users/portrait");
        Options(o => o.WithTags("Users"));
        AllowFileUploads();
    }

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

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

        var blobUrl = await blobStorage.UploadFileAsync(
            ContainerNames.Users,
            $"{user.Id}/{SubDirectoryNames.Profile}/{CommonFileNames.ProfilePicture}",
            request.File.OpenReadStream(),
            request.File.ContentType,
            ct);

        user.PortraitUrl = blobUrl;

        var result = await userManager.UpdateAsync(user);

        if (result.Succeeded)
        {
            await SendOkAsync(
                new ChangePortraitResponse(blobUrl),
                ct);
        }
        else
        {
            await SendUnauthorizedAsync(ct);
        }
    }
}