"""Internal persistence model for conversational investment-goal extraction."""

from datetime import datetime
from typing import Any

from sqlalchemy import JSON, BigInteger, DateTime, String
from sqlalchemy.orm import Mapped, mapped_column

from app.model.base import Base


class AdvisorGoalConversationExtraction(Base):
    """Append-only extraction snapshot; never exposed in the customer API."""

    __tablename__ = "advisor_goal_conversation_extraction"

    id: Mapped[int] = mapped_column(BigInteger, primary_key=True)
    message_id: Mapped[int] = mapped_column(BigInteger, unique=True, nullable=False)
    session_id: Mapped[str] = mapped_column(String(64), nullable=False)
    customer_id: Mapped[int] = mapped_column(BigInteger, nullable=False)
    extraction_version: Mapped[str] = mapped_column(String(32), nullable=False)
    extracted_fields: Mapped[dict[str, Any]] = mapped_column(JSON, nullable=False)
    missing_fields: Mapped[list[str]] = mapped_column(JSON, nullable=False)
    status: Mapped[str] = mapped_column(String(32), nullable=False)
    created_at: Mapped[datetime] = mapped_column(DateTime, nullable=False)
    updated_at: Mapped[datetime] = mapped_column(DateTime, nullable=False)