using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using PartnerBLL.ClientDetail;
using PartnerDAL.DTO.ClientDetail;
using static GB5Shared.GB5Constant.Constant;

namespace PartnerSL.EndPoints.ClientDetail
{
    // Registers a NEW ConnectionName against an EXISTING physical database — e.g.
    // ConnectionName "Sankar" pointing at DatabaseName "DEMO", alongside other
    // ConnectionNames already using that same database, each with its own independent
    // PartnerProductId assignment for white-labeling. This is the opposite case from core
    // provisioning's /lic/Onboarding.svc/OnboardClient, which creates a brand-new physical
    // database per client and gives the caller no control over ConnectionName/DatabaseName
    // at all (confirmed: neither field exists on that request). No schema change to
    // MSERVERCONFIG — every value here is caller-supplied and validated (ConnectionName
    // uniqueness, DatabaseName must belong to an existing active connection) before insert.
    //
    // After calling this, use CreateClientDetail then AssignPartnerProduct with the same
    // ClientId/ClientSiteId to complete the white-labeling assignment.
    public class RegisterConnection : BaseEndpoint<RegisterConnection.RegisterConnectionParameters, ResponseStandardDTO<object>>
    {
        private readonly IClientDetailBLL _bll;

        public RegisterConnection(IClientDetailBLL bll) => _bll = bll;

        public override void Configure()
        {
            Post("/ClientDetail/RegisterConnection");
            AllowAnonymous();
        }

        public record RegisterConnectionParameters(
            [property: FromHeader] string              Login,
            [property: FromBody]   RegisterConnectionDTO RegisterConnectionDTO
        );

        protected override string? GetCacheKey(RegisterConnectionParameters req, LoginDTO loginDTO) => null;

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