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 DELETE /?VoucherId=&CancelApplicable= operation.
    // CancelApplicable: 0 = hard delete, 1 = soft cancel (STATUS=2). See VoucherBLL.DeleteVoucherAsync
    // for the full behavior and the scope this port deliberately excludes.
    public class DeleteVoucher : BaseEndpoint<DeleteVoucher.DeleteVoucherParameters, ResponseStandardDTO<object>>
    {
        private readonly IVoucherBLL _VoucherBLL;

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

        public override void Configure()
        {
            Delete("/Voucher/DeleteVoucher");
            AllowAnonymous();
        }

        // CancelApplicable defaults to 0 (hard delete) when omitted from the query string, matching
        // GB4's own default parameter (int CancelApplicable = 0) — the "Delete" button in GB4's UI
        // calls this endpoint with no CancelApplicable at all, relying on that default.
        public record DeleteVoucherParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int VoucherId,
            [property: QueryParam] int CancelApplicable = 0
        );

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

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(DeleteVoucherParameters req, LoginDTO LoginDTO, CancellationToken ct)
        {
            try
            {
                var Result = await _VoucherBLL.DeleteVoucherAsync(req.VoucherId, req.CancelApplicable, 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);
            }
        }
    }
}