using FastEndpoints;
using Hutopy.Application.AzureBlobStorage.Constants;
using Hutopy.Application.Common.Interfaces;
using Hutopy.Web.Features.Contents.Data;
using Microsoft.EntityFrameworkCore;

namespace Hutopy.Web.Features.Contents.Handlers;

public record ChangeBannerRequest(
    Guid CreatorId,
    IFormFile File);

public class ChangeBannerHandler(
    IHttpContextAccessor contextAccessor,
    ContentDbContext context,
    IBlobStorage blobStorage)
    : Endpoint<ChangeBannerRequest>
{
    public override void Configure()
    {
        Post("/api/creators/{CreatorId}/banner");
        Options(o => o.WithTags("Contents"));
        AllowFileUploads();
    }
    
    public override async Task HandleAsync(ChangeBannerRequest request, CancellationToken ct)
    {
        var creator = await context
            .Creators
            .Include(c => c.Images)
            .SingleOrDefaultAsync(
                c => c.Id == request.CreatorId,
                cancellationToken: ct);

        if (creator is null)
        {
            await SendNotFoundAsync(ct);
            return;
        }
        
        // TODO: this upload should be done to the Creators container
        var blobUrl = await blobStorage.UploadFileAsync(
            ContainerNames.Users,
            $"{request.CreatorId}/{SubDirectoryNames.Profile}/{CommonFileNames.BannerPicture}",
            request.File.OpenReadStream(),
            request.File.ContentType,
            ct);
        
        creator.Images.Banner = blobUrl;
        
        await context.SaveChangesAsync(ct);
        
        await SendOkAsync(blobUrl, ct);
    }
}