from datetime import datetime

from sqlalchemy import DateTime, String, Text, func
from sqlalchemy.dialects.postgresql import JSONB
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


class Host(Base):
    __tablename__ = "hosts"

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    agent_instance_id: Mapped[str | None] = mapped_column(String(128), unique=True, index=True)
    hostname: Mapped[str] = mapped_column(String(255), index=True)
    display_name: Mapped[str | None] = mapped_column(String(255))
    os_family: Mapped[str] = mapped_column(String(32))
    os_version: Mapped[str | None] = mapped_column(String(128))
    product: Mapped[str] = mapped_column(String(64), index=True)
    product_version: Mapped[str | None] = mapped_column(String(64))
    ipv4: Mapped[str | None] = mapped_column(String(45))
    ipv6: Mapped[str | None] = mapped_column(String(45))
    tags: Mapped[list | None] = mapped_column(JSONB, default=list)
    inventory: Mapped[dict | None] = mapped_column(JSONB)
    inventory_updated_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    use_sac_mode: Mapped[str | None] = mapped_column(String(32))
    last_seen_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    events: Mapped[list["Event"]] = relationship(back_populates="host")