"""AI worker 执行账本。"""

from __future__ import annotations

from typing import Optional

from sqlalchemy import BigInteger, ForeignKey, Integer, Text, UniqueConstraint, VARCHAR, TIMESTAMP
from sqlalchemy.orm import Mapped, mapped_column

from .base import Base
from .types import JSONB


class AIWorkerExecution(Base):
    __tablename__ = "ai_worker_executions"
    __table_args__ = (
        UniqueConstraint(
            "tenant_id",
            "trace_id",
            "worker_role_key",
            name="uq_ai_worker_execution_trace_role",
        ),
    )

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    project_id: Mapped[int] = mapped_column(
        BigInteger, ForeignKey("projects.id"), nullable=False, index=True
    )
    signal_id: Mapped[Optional[int]] = mapped_column(
        BigInteger, ForeignKey("signals.id"), nullable=True, index=True
    )
    signal_source_registry_id: Mapped[Optional[int]] = mapped_column(
        BigInteger, ForeignKey("signal_source_registries.id"), nullable=True, index=True
    )
    operator_user_id: Mapped[Optional[int]] = mapped_column(
        BigInteger, ForeignKey("users.id"), nullable=True, index=True
    )
    trace_id: Mapped[str] = mapped_column(VARCHAR(64), nullable=False, index=True)
    operation_trace_id: Mapped[Optional[str]] = mapped_column(VARCHAR(64), nullable=True, index=True)
    execution_type: Mapped[str] = mapped_column(VARCHAR(40), nullable=False, default="signal_source_onboarding", index=True)
    worker_role_key: Mapped[str] = mapped_column(VARCHAR(32), nullable=False, index=True)
    worker_role_name: Mapped[str] = mapped_column(VARCHAR(64), nullable=False)
    status: Mapped[str] = mapped_column(VARCHAR(20), nullable=False, default="planned", index=True)
    summary: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
    input_payload: Mapped[Optional[dict]] = mapped_column(JSONB, nullable=True)
    output_payload: Mapped[Optional[dict]] = mapped_column(JSONB, nullable=True)
    error_message: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
    started_at: Mapped[Optional[TIMESTAMP]] = mapped_column(TIMESTAMP, nullable=True)
    completed_at: Mapped[Optional[TIMESTAMP]] = mapped_column(TIMESTAMP, nullable=True)