def _date(value):
    return value.isoformat() if value else None


def _enum(value):
    if value is None:
        return None
    return getattr(value, "value", value)


def serialize_verification_check(row, names=None) -> dict:
    """`names` is {user_id: name} from one batched Users.names_by_ids lookup in
    views, so the recruiter / candidate search dropdowns can preselect on edit."""
    names = names or {}
    return {
        "id": str(row.id) if row.id else None,
        "recruiter_id": str(row.recruiter_id) if row.recruiter_id else None,
        "recruiter_name": names.get(str(row.recruiter_id)) if row.recruiter_id else None,
        "candidate_id": str(row.candidate_id) if row.candidate_id else None,
        "candidate_name": names.get(str(row.candidate_id)) if row.candidate_id else None,
        "record_overview": {
            "position_applied": row.position_applied,
            "department_id": str(row.department_id) if row.department_id else None,
            "department": row.department,
            "date_time": _date(row.date_time),
        },
        "employment_verification": {
            "confirmed_job_title": row.confirmed_job_title,
            "confirmed_from": _date(row.confirmed_from),
            "confirmed_to": _date(row.confirmed_to),
            "reason_for_leaving": row.reason_for_leaving,
        },
        "competency_evaluation": {
            "technical_knowledge": {
                "rating": row.technical_knowledge_rating,
                "notes": row.technical_knowledge_notes,
            },
            "reliability": {
                "rating": row.reliability_rating,
                "notes": row.reliability_notes,
            },
            "communication": {
                "rating": row.communication_rating,
                "notes": row.communication_notes,
            },
            "problem_solving": {
                "rating": row.problem_solving_rating,
                "notes": row.problem_solving_notes,
            },
        },
        "qualitative_evaluation": {
            "strengths": row.strengths,
            "areas_for_growth": row.areas_for_growth,
            "rehire_eligibility": _enum(row.rehire_eligibility),
            "rehire_comments": row.rehire_comments,
        },
        "referee": {
            "full_name": row.referee_full_name,
            "current_title": row.referee_current_title,
            "company": row.referee_company,
            "phone": row.referee_phone,
            "email": row.referee_email,
        },
        "created_by": str(row.created_by) if row.created_by else None,
        "created_by_name": names.get(str(row.created_by)) if row.created_by else None,
        "created_at": row.created_at.isoformat() if row.created_at else None,
        "updated_at": row.updated_at.isoformat() if row.updated_at else None,
    }