using FastEndpoints;
using GB5Shared.DigitalSignature;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using static GB5Shared.GB5Constant.Constant;

namespace FrameworkSL.Endpoints.DigitalSignaturePFX
{
    public class GenerateSignature : BaseEndpoint<GenerateSignature.SignatureDataParameters, object>
    {
        private readonly IDigitalSignatureService _DigitalSignatureService;

        public GenerateSignature(IDigitalSignatureService DigitalSignatureService)
        {
            _DigitalSignatureService = DigitalSignatureService;
        }

        public override void Configure()
        {
            Post("/DigitalSignaturePFX/GenerateSignature");
            AllowAnonymous();
        }

        public record SignatureDataParameters(
          string ThumbPrint,
          string DataBase64,
          [property: FromHeader] string Login
        );

        protected override string? GetCacheKey(SignatureDataParameters req, LoginDTO login) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(SignatureDataParameters parameters, LoginDTO LoginDTO, CancellationToken ct)
        {
            try
            {
                var dataBytes = Convert.FromBase64String(parameters.DataBase64);
                var signature = await _DigitalSignatureService.SignDataAsync(parameters.ThumbPrint, dataBytes, ct);

                var result = new
                {
                    SignatureBase64 = Convert.ToBase64String(signature)
                };

                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.NOT_REQUIRED, LoginDTO);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(
                    ex, CacheKeyLevel.NOT_REQUIRED,
                    LoginDTO, ex.Message,
                    500
                );
            }
        }
    }
}