using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using WiBLL.WiMaster;
using static GB5Shared.GB5Constant.Constant;

namespace WiSL.EndPoints.WI
{
    // Returns the exact GetWIFullDetail-shaped JSON captured at a given LWIVERSION transition —
    // used to view an old version or compare two versions, without a second content model.
    public class GetVersionSnapshot : BaseEndpoint<GetVersionSnapshot.Parameters, ResponseStandardDTO<object>>
    {
        private readonly IWiMasterBLL _bll;

        public GetVersionSnapshot(IWiMasterBLL bll)
        {
            _bll = bll;
        }

        public override void Configure()
        {
            Get("/WI/GetVersionSnapshot");
            AllowAnonymous();
        }

        public record Parameters(
            [property: FromHeader] string Login,
            [property: QueryParam] int LWiVersionId
        );

        protected override string? GetCacheKey(Parameters req, LoginDTO login)
        {
            try
            {
                return $"Wi:Snapshot:{login.ClientId}:{req.LWiVersionId}";
            }
            catch (Exception)
            {
                throw;
            }
        }

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