using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using RecruitmentDAL.DTO.JobRequisition;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace RecruitmentBLL.JobRequisition
{
    public interface IJobRequisitionBLL
    {
        Task<string> GetJobRequisition(int JobRequisitionId, LoginDTO LoginDTO, CancellationToken ct);
        Task<string> SaveJobRequisition(JobRequisitionDTO JobRequisitionDTO, LoginDTO LoginDTO, CancellationToken ct);
        Task<string> GetSelectListJobRequisition(CriteriaDTO criteriaDTO, LoginDTO LoginDTO, CancellationToken ct);
        Task<string> DeleteJobRequisition(int JobRequisitionId, LoginDTO LoginDTO, CancellationToken ct);

        // Explicit approval state-machine transitions (Draft -> PendingApproval -> Approved/Rejected).
        // Callable by a human today via the endpoints below; a future IWorkFlowEngine-driven
        // approval gate can call these same methods as its post-approval/post-rejection hook
        // without changing this contract. See JobRequisitionBLL for why full IWorkFlowEngine
        // wiring was deferred rather than guessed at.
        Task<string> SubmitJobRequisitionForApproval(int JobRequisitionId, LoginDTO LoginDTO, CancellationToken ct);
        Task<string> ApproveJobRequisition(int JobRequisitionId, LoginDTO LoginDTO, CancellationToken ct);
        Task<string> RejectJobRequisition(int JobRequisitionId, LoginDTO LoginDTO, CancellationToken ct);
    }
}