from __future__ import annotations

from datetime import datetime
from typing import List, Optional

from sqlalchemy import Boolean, DateTime, String, text
from sqlalchemy.orm import Mapped, mapped_column, relationship
from sqlalchemy.sql import func

from .database import Base


class Host(Base):
    __tablename__ = "hosts"

    id: Mapped[str] = mapped_column(String, primary_key=True)
    name: Mapped[str] = mapped_column(String, nullable=False)
    ip_address: Mapped[str] = mapped_column(String, nullable=False, unique=True)
    status: Mapped[str] = mapped_column(String, nullable=False, server_default=text("'unknown'"))
    ansible_group: Mapped[Optional[str]] = mapped_column(String, nullable=True)
    last_seen: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))
    reachable: Mapped[bool] = mapped_column(Boolean, nullable=False, server_default=text("0"))
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now())
    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False, server_default=func.now(), onupdate=func.now())
    deleted_at: Mapped[Optional[datetime]] = mapped_column(DateTime(timezone=True))

    bootstrap_statuses: Mapped[List["BootstrapStatus"]] = relationship(
        "BootstrapStatus", back_populates="host", cascade="all, delete-orphan"
    )
    logs: Mapped[List["Log"]] = relationship("Log", back_populates="host")

    def __repr__(self) -> str:  # pragma: no cover - debug helper
        return f"<Host id={self.id} name={self.name} ip={self.ip_address}>"