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

namespace AccountsSL.EndPoints.Voucher
{
    // Faithful port of GB4 Voucher.svc's CheckReferenceNumberDuplication. On success returns an
    // empty-body success response; if a duplicate is found, the BLL throws and this endpoint
    // returns an error response carrying the same "already used in {VoucherNumber}" message GB4
    // used — matching GB4's own duplicate-signaled-via-exception contract.
    public class CheckReferenceNumberDuplication
        : BaseEndpoint<CheckReferenceNumberDuplication.CheckReferenceNumberDuplicationParameters, ResponseStandardDTO<object>>
    {
        private readonly IVoucherBLL _VoucherBLL;

        public CheckReferenceNumberDuplication(IVoucherBLL voucherBLL)
        {
            _VoucherBLL = voucherBLL;
        }

        public override void Configure()
        {
            Get("/Voucher/Check/Reference/Number/Duplication");
            AllowAnonymous();
        }

        public record CheckReferenceNumberDuplicationParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int OuId,
            [property: QueryParam] int PeriodId,
            [property: QueryParam] int BiztransactiontypeId,
            [property: QueryParam] int AccountId,
            [property: QueryParam] string ReferenceNumber
        );

        protected override string? GetCacheKey(CheckReferenceNumberDuplicationParameters req, LoginDTO loginDTO) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            CheckReferenceNumberDuplicationParameters req,
            LoginDTO LoginDTO,
            CancellationToken ct)
        {
            try
            {
                var result = await _VoucherBLL.CheckReferenceNumberDuplication(
                    req.OuId,
                    req.PeriodId,
                    req.BiztransactiontypeId,
                    req.AccountId,
                    req.ReferenceNumber,
                    LoginDTO!
                );

                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);
            }
        }
    }
}