using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using Microsoft.AspNetCore.Mvc;
using RecruitmentBLL.JobRequisition;
using static GB5Shared.GB5Constant.Constant;

namespace RecruitmentSL.EndPoints.JobRequisition
{
    // Explicit PendingApproval -> Approved transition. See JobRequisitionBLL for why this
    // human-driven approval surface was built instead of a bespoke IWorkFlowEngine call.
    public class ApproveJobRequisition
        : BaseEndpoint<ApproveJobRequisition.ApproveJobRequisitionParameters, ResponseStandardDTO<object>>
    {
        private readonly IJobRequisitionBLL _JobRequisitionBLL;

        public ApproveJobRequisition(IJobRequisitionBLL jobRequisitionBLL)
        {
            _JobRequisitionBLL = jobRequisitionBLL;
        }

        public override void Configure()
        {
            Post("/JobRequisition/ApproveJobRequisition");
            // Roles("HR", "Manager") throws 500 here — no host in this repo configures
            // AddAuthentication (HRFinanceHost included; see PayRollSL's GetHRMSDashboard.cs
            // for the same documented, repo-wide gap). AllowAnonymous matches every other
            // endpoint in this SL module today.
            AllowAnonymous();
        }

        public record ApproveJobRequisitionParameters(
            [property: FastEndpoints.FromHeader] string Login,
            [property: QueryParam] int JobRequisitionId
        );

        protected override string? GetCacheKey(ApproveJobRequisitionParameters req, LoginDTO login) => null;

        protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(
            ApproveJobRequisitionParameters req,
            LoginDTO LoginDTO,
            CancellationToken ct)
        {
            try
            {
                var result = await _JobRequisitionBLL
                    .ApproveJobRequisition(req.JobRequisitionId, LoginDTO!, ct);

                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);
            }
        }
    }
}