using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using RecruitmentBLL.Career;
using static GB5Shared.GB5Constant.Constant;

namespace RecruitmentSL.EndPoints.Career
{
    // Public career-site job list. Read-only, tightly scoped: RecruitmentBLL.Career.CareerBLL
    // only ever returns Published(=5)+Active(=1) requisitions for the tenant, and only the
    // public-appropriate PublicJobPostingDTO shape — never the internal JobRequisitionDTO.
    public class GetPublishedJobs
        : BaseEndpoint<GetPublishedJobs.GetPublishedJobsParameters, ResponseStandardDTO<object>>
    {
        private readonly ICareerBLL _CareerBLL;

        public GetPublishedJobs(ICareerBLL careerBLL)
        {
            _CareerBLL = careerBLL;
        }

        public override void Configure()
        {
            Get("/Career/GetPublishedJobs");
            // Genuinely public — no host in this repo configures AddAuthentication (see
            // PayRollSL's GetHRMSDashboard.cs for the repo-wide gap), and this endpoint is
            // deliberately intended for anonymous career-site visitors either way.
            AllowAnonymous();
        }

        public record GetPublishedJobsParameters(
            [property: QueryParam] int FirstNumber,
            [property: QueryParam] int MaxResult,
            [property: FastEndpoints.FromHeader] string Login
        );

        // Not cached — same precedent as GetSelectListJobRequisition (no GetCacheKey override)
        // in this same module: a paged public list is exactly the shape that goes stale under
        // CLIENT_LEVEL caching once a requisition is newly Published/Closed, since a single
        // JobRequisition save only invalidates that one requisition's own cache key, never a
        // list's. Leaving this uncached keeps the career site's "what's open right now" list
        // always live instead of trading correctness for a short TTL.
        protected override string? GetCacheKey(GetPublishedJobsParameters req, LoginDTO login) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            GetPublishedJobsParameters req,
            LoginDTO LoginDTO,
            CancellationToken ct)
        {
            try
            {
                var result = await _CareerBLL
                    .GetPublishedJobs(req.FirstNumber, req.MaxResult, LoginDTO!, ct);

                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);
            }
        }
    }
}