using System;
using System.Collections.Generic;

namespace RecruitmentDAL.DTO.FlsBridge
{
    // Request shape for RecruitmentFlsBridgeBLL.PrepareActionAsync — an authenticated,
    // internal-caller DTO (e.g. called right after an offer save, a reference-check dispatch,
    // a shortlist decision, or an interview being scheduled) that mints a token link for one of
    // the 5 action types.
    public class PrepareRecruitmentFlsActionDTO
    {
        public byte ActionType { get; set; }
        public int ApplicationId { get; set; }
        public int JobOfferId { get; set; } = -1;
        public int InterviewId { get; set; } = -1;
        public string? RecipientName { get; set; }
        public string? RecipientEmail { get; set; }

        // Phase 6 — set by the caller when dispatching ActionType=ReferenceCheck (2) as part of
        // BG verification, so the referee's submission can be linked back to the specific
        // TBGVERIFICATION row it's fulfilling. Leave at the -1 sentinel for every other dispatch
        // (including a plain, non-BG-verification reference check) — additive only, does not
        // change behavior for the other 5 action types.
        public int BgVerificationId { get; set; } = -1;
    }

    public class PrepareRecruitmentFlsActionResultDTO
    {
        public Guid AccessToken { get; set; }
        public DateTime? TokenExpiry { get; set; }
        public int RecruitmentFlsActionId { get; set; }
    }

    // Transient (never persisted as its own row — see migration header on why this module adds
    // no separate coordinator table) resolution result for the shared per-tenant
    // MFLSREGISTRATION/MFLSINSTANCE/MFLSINSTANCEGROUP triple that every Recruitment FLS action
    // dispatch reuses, located by natural key (RegistrationCode/InstanceCode/GroupCode).
    public class RecruitmentFlsCoordinatorRef
    {
        public int FlsInstanceId { get; set; }
        public int GroupId { get; set; }
    }

    // Minimal, best-effort parse target for RESPONSEPAYLOAD JSON submitted by the candidate/
    // referee — the 5 action types have different real shapes on the FE side, so this only
    // extracts the handful of fields RecruitmentFlsBridgeBLL.SubmitActionAsync needs to drive
    // its per-ActionType side effect. Anything not recognized is preserved verbatim in
    // RecruitmentFlsActionDTO.ResponsePayload regardless — this is a read helper, not a schema.
    public class FlsActionResponsePayload
    {
        // OfferResponse (ActionType=3): "Accept" or "Decline" (case-insensitive).
        public string? Decision { get; set; }

        // ReferenceCheck/ShortlistAck (ActionType=2/4): stage-history Outcome (1=Pending
        // 2=Passed 3=Failed 4=Skipped 5=Delayed 6=DroppedOff) — defaults to 2 (Passed) for a
        // ShortlistAck (acknowledging is itself a pass) and must be supplied for ReferenceCheck.
        public byte? Outcome { get; set; }
        public string? Recommendation { get; set; }
        public string? Remarks { get; set; }

        // InterviewSlotConfirm (ActionType=5): true=Confirmed, false=Reschedule requested.
        public bool? Confirmed { get; set; }
        public string? RescheduleReason { get; set; }

        // DetailedApplication (ActionType=1): free-form extended-answer bag — stored verbatim,
        // no other entity is updated for this action type.
        public Dictionary<string, object>? Answers { get; set; }

        // VoluntarySelfId (ActionType=6): voluntary DEI/diversity self-disclosure. ConsentToCollect
        // must be true, EXPLICITLY, in this exact payload for any of the 5 fields below to ever be
        // persisted — RecruitmentFlsBridgeBLL.SubmitActionAsync's VoluntarySelfId case passes these
        // straight through to CandidateDemographicBLL.SaveCandidateDemographic, which re-enforces
        // the same guard independently (defense-in-depth: the guard holds even if a future caller
        // reaches that BLL method some other way). Omitting ConsentToCollect, or sending it as
        // false, is always safe — it never causes any of the other 4 fields to be written.
        public bool? ConsentToCollect { get; set; }
        public string? GenderIdentity { get; set; }
        public string? EthnicityRace { get; set; }
        public byte? DisabilityStatus { get; set; }
        public byte? VeteranStatus { get; set; }
        public byte? AgeBand { get; set; }
    }
}