using Microsoft.Extensions.Logging;

using Microsoft.Extensions.DependencyInjection;

using PhiZoneApi.Models;

using PhiZoneApi.Interfaces;

using PhiZoneApi.Constants;

using PhiZoneApi.Dtos.Deliverers;

using PhiZoneApi.Enums;

var target = (ChartSubmission)Target;

var currentUser = CurrentUser!;

await using (var scope = ServiceProvider.CreateAsyncScope())

{

    if (target.RepresentationId == null) return null;

    var chartRepository = scope.ServiceProvider.GetRequiredService<IChartRepository>();

    var resourceService = scope.ServiceProvider.GetRequiredService<IResourceService>();

    var chart = await chartRepository.GetChartAsync(target.RepresentationId.Value);

    if (chart.FileChecksum != target.FileChecksum && !resourceService.HasPermission(currentUser, UserRole.Moderator))

        return new EventTaskResponseDto

        {

            Status = ResponseStatus.ErrorBrief,

            Code = ResponseCodes.InvalidOperation,

            Message = "[7th PecJam] 无法为已通过的谱面更新谱面文件。Cannot update file when the chart has already been approved."

        };

}