using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using PayRollBLL.ShiftPattern;
using static GB5Shared.GB5Constant.Constant;

namespace PayRollSL.EndPoints.ShiftPattern
{
    // Sub-endpoint powering the shift-pattern detail grid: loads every detail row (through its
    // days rows) for a single ShiftPatternId, without re-fetching the whole header/days hierarchy
    // via GetShiftPattern.
    public class LoadShiftPatternDetails : BaseEndpoint<LoadShiftPatternDetails.LoadShiftPatternDetailsParameters, ResponseStandardDTO<object>>
    {
        private readonly IShiftPatternBLL _ShiftPatternBLL;

        public LoadShiftPatternDetails(IShiftPatternBLL shiftPatternBLL)
        {
            _ShiftPatternBLL = shiftPatternBLL;
        }

        public override void Configure()
        {
            Get("/ShiftPattern/LoadShiftPatternDetails");
            AllowAnonymous();
        }

        public record LoadShiftPatternDetailsParameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int    ShiftPatternId
        );

        protected override string? GetCacheKey(LoadShiftPatternDetailsParameters req, LoginDTO loginDTO)
        {
            try
            {
                return KeyGenerator.KeyGeneration(req.ShiftPatternId, EntityConstant.OBJECTSHIFTPATTERN, CacheKeyLevel.USER_LEVEL, loginDTO);
            }
            catch (Exception)
            {
                throw;
            }
        }

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            LoadShiftPatternDetailsParameters req, LoginDTO loginDTO, CancellationToken ct)
        {
            try
            {
                var result = await _ShiftPatternBLL.LoadShiftPatternDetails(req.ShiftPatternId, loginDTO);
                return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(
                    result, CacheKeyLevel.USER_LEVEL, loginDTO);
            }
            catch (Exception ex)
            {
                return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(
                    ex, CacheKeyLevel.USER_LEVEL, loginDTO, ex.Message, 500);
            }
        }
    }
}