"""biz_work_order 通用业务工单 ORM 模型（拦截/冻结后开启的独立审批链）。"""
from __future__ import annotations

from datetime import datetime
from typing import Any

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

from model.base import Base


class BizWorkOrder(Base):
    __tablename__ = "biz_work_order"
    __table_args__ = {"comment": "通用业务工单表（投标顾签约、可疑交易上报等流程载体）"}

    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
    work_order_no: Mapped[str] = mapped_column(String(32), unique=True)
    order_type: Mapped[str] = mapped_column(String(32))
    sub_type: Mapped[str | None] = mapped_column(String(32))
    customer_id: Mapped[int | None] = mapped_column(BigInteger)
    submitter_id: Mapped[int | None] = mapped_column(BigInteger)
    handler_id: Mapped[int | None] = mapped_column(BigInteger)
    current_node: Mapped[str] = mapped_column(String(32), server_default="初审")
    priority: Mapped[str] = mapped_column(String(8), server_default="普通")
    status: Mapped[str] = mapped_column(String(16), server_default="待处理")
    biz_content: Mapped[dict[str, Any] | None] = mapped_column(JSON)
    create_time: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
    update_time: Mapped[datetime] = mapped_column(
        DateTime, server_default=func.now(), onupdate=func.now()
    )