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 GetLoyaltyLedger : BaseEndpoint<GetLoyaltyLedger.GetLoyaltyLedgerParameters, ResponseStandardDTO<object>>
    {
        private readonly ICustomerLoyaltyBLL _bll;

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

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

        public record GetLoyaltyLedgerParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int    EnrollmentId,
            [property: QueryParam] int    PageOffset = 0,
            [property: QueryParam] int    PageSize   = 20
        );

        // Ledger data is transactional — never cache
        protected override string? GetCacheKey(GetLoyaltyLedgerParameters req, LoginDTO login) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            GetLoyaltyLedgerParameters req, LoginDTO login, CancellationToken ct)
        {
            try
            {
                var result = await _bll.GetLoyaltyLedger(req.EnrollmentId, req.PageOffset, req.PageSize, 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);
            }
        }
    }
}