"""Server inventory model."""

import enum
from datetime import UTC, datetime

from sqlalchemy import DateTime, Enum, ForeignKey, String, Text
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.core.database import Base


class ServerType(str, enum.Enum):
    WINDOWS = "windows"  # WinRM
    LINUX = "linux"  # SSH
    CAU_CLUSTER = "cau_cluster"  # Cluster-Aware Updating


class Server(Base):
    __tablename__ = "servers"

    id: Mapped[int] = mapped_column(primary_key=True)
    name: Mapped[str] = mapped_column(String(255), unique=True, index=True)
    hostname: Mapped[str] = mapped_column(String(255))
    port: Mapped[int] = mapped_column(default=5985)
    type: Mapped[ServerType] = mapped_column(Enum(ServerType), default=ServerType.WINDOWS)
    description: Mapped[str | None] = mapped_column(Text, nullable=True)
    tags: Mapped[str | None] = mapped_column(String(500), nullable=True)  # comma-separated

    credential_id: Mapped[int | None] = mapped_column(
        ForeignKey("credentials.id"), nullable=True
    )
    credential: Mapped["Credential | None"] = relationship(lazy="selectin")  # noqa: F821

    last_health_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    last_health_ok: Mapped[bool | None] = mapped_column(nullable=True)

    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=lambda: datetime.now(UTC)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(UTC),
        onupdate=lambda: datetime.now(UTC),
    )

    jobs: Mapped[list["UpdateJob"]] = relationship(  # noqa: F821
        back_populates="server", cascade="all, delete-orphan"
    )