"""真理节点模型"""
from .base import Base
from .types import JSONB
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy import BigInteger, VARCHAR, Integer, ForeignKey
from typing import Optional


class TruthNode(Base):
    __tablename__ = "truth_nodes"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    node_type: Mapped[str] = mapped_column(VARCHAR(50), nullable=False)
    parent_id: Mapped[Optional[int]] = mapped_column(
        BigInteger, ForeignKey("truth_nodes.id"), nullable=True
    )
    project_id: Mapped[Optional[int]] = mapped_column(BigInteger, nullable=True)
    signal_id: Mapped[Optional[int]] = mapped_column(
        BigInteger, ForeignKey("signals.id"), nullable=True, index=True
    )
    created_by: Mapped[int] = mapped_column(
        BigInteger, ForeignKey("users.id"), nullable=False
    )
    title: Mapped[str] = mapped_column(VARCHAR(500), nullable=False)
    content: Mapped[dict] = mapped_column(JSONB, nullable=False)
    version: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    status: Mapped[str] = mapped_column(VARCHAR(50), nullable=False)