using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using GoodBooks.PAY.PAYBLL.Loyalty;
using static GB5Shared.GB5Constant.Constant;

namespace GoodBooks.PAY.PAYSL.Endpoints.Loyalty
{
    public class GetCustomerLoyaltyBalance : BaseEndpoint<GetCustomerLoyaltyBalance.GetCustomerLoyaltyBalanceParameters, ResponseStandardDTO<object>>
    {
        private readonly ICustomerLoyaltyBLL _bll;

        public GetCustomerLoyaltyBalance(ICustomerLoyaltyBLL bll) => _bll = bll;

        public override void Configure()
        {
            Get("/Pay/Loyalty/GetCustomerLoyaltyBalance");
            AllowAnonymous();
        }

        public record GetCustomerLoyaltyBalanceParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int    EnrollmentId
        );

        // Live balance — never cache; always query TLOYALTYLEDGER directly
        protected override string? GetCacheKey(GetCustomerLoyaltyBalanceParameters req, LoginDTO login) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            GetCustomerLoyaltyBalanceParameters req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var result = await _bll.GetCustomerLoyaltyBalance(req.EnrollmentId, login, ct);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
                    result, CacheKeyLevel.NOT_REQUIRED, login);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(
                    ex, CacheKeyLevel.NOT_REQUIRED, login, ex.Message, 500);
            }
        }
    }
}