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

namespace AccountsSL.EndPoints.Voucher
{
    public class SaveVoucher : BaseEndpoint<SaveVoucher.SaveVoucherParameters, ResponseStandardDTO<object>>
    {
        private readonly IVoucherBLL _VoucherBLL;

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

        public override void Configure()
        {
            Post("/Voucher/SaveVoucher");
            AllowAnonymous();
        }

        public record SaveVoucherParameters(
            [property: FromHeader] string Login,
            [property: FromBody] VoucherDTO VoucherDTO
        );

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(SaveVoucherParameters req, LoginDTO LoginDTO, CancellationToken ct)
        {
            try
            {
                var Result = await _VoucherBLL.SaveVoucherAsync(req.VoucherDTO, LoginDTO!);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(Result, CacheKeyLevel.NOT_REQUIRED, LoginDTO);
            }
            catch (VoucherEndValidationException ex)
            {
                // GB4's FNVOUCHERVALIDATE failure path — surfaces the validation rows, not a flat message.
                string message = string.Join("; ", ex.ValidationRows.Select(r => r.ValidationMessage));
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, CacheKeyLevel.NOT_REQUIRED, LoginDTO, message, 422);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, CacheKeyLevel.NOT_REQUIRED, LoginDTO, ex.Message, 500);
            }
        }
    }
}