from department.models import Department


def serialize_head_option(user) -> dict:
    return {"id": str(user.id), "name": user.name, "email": user.email}


def serialize_department(
    department: Department,
    *,
    head_name: str | None = None,
    parent_name: str | None = None,
    metrics: dict | None = None,
) -> dict:
    return {
        "id": str(department.id),
        "name": department.name,
        "short_code": department.short_code,
        "subtitle": department.subtitle,
        "description": department.description,
        "is_active": department.is_active,
        "parent_department_id": (
            str(department.parent_department_id) if department.parent_department_id else None
        ),
        "parent_department_name": parent_name,
        "department_head_id": (
            str(department.department_head_id) if department.department_head_id else None
        ),
        "department_head_name": head_name,
        "location": list(department.location or []),
        "job_posts": (metrics or {}).get("job_posts", 0),
        "open_roles": (metrics or {}).get("open_roles", 0),
        "candidates": (metrics or {}).get("candidates", 0),
        "created_by": str(department.created_by) if department.created_by else None,
        "updated_by": str(department.updated_by) if department.updated_by else None,
        "created_at": department.created_at.isoformat() if department.created_at else None,
        "updated_at": department.updated_at.isoformat() if department.updated_at else None,
    }