"""
Host metrics model for storing system monitoring data.
"""

from datetime import datetime

from sqlalchemy import BigInteger, DateTime, Float, Integer, String
from sqlalchemy.orm import Mapped, mapped_column

from app.core.database import Base


class HostMetrics(Base):
    """Host system metrics (CPU, RAM, Load, Disk, Network)."""

    __tablename__ = "host_metrics"

    id: Mapped[int] = mapped_column(primary_key=True)
    timestamp: Mapped[datetime] = mapped_column(DateTime(timezone=True), index=True)

    # CPU
    cpu_percent: Mapped[float] = mapped_column(Float, nullable=False)
    cpu_count: Mapped[int] = mapped_column(Integer, nullable=False)

    # Memory
    memory_total: Mapped[int] = mapped_column(BigInteger, nullable=False)  # bytes
    memory_used: Mapped[int] = mapped_column(BigInteger, nullable=False)
    memory_percent: Mapped[float] = mapped_column(Float, nullable=False)

    # Load Average
    load_1: Mapped[float] = mapped_column(Float, nullable=False)
    load_5: Mapped[float] = mapped_column(Float, nullable=False)
    load_15: Mapped[float] = mapped_column(Float, nullable=False)

    # Disk I/O
    disk_read_bytes: Mapped[int] = mapped_column(BigInteger, nullable=False)
    disk_write_bytes: Mapped[int] = mapped_column(BigInteger, nullable=False)
    disk_usage_percent: Mapped[float] = mapped_column(Float, nullable=False)

    # Network
    net_sent_bytes: Mapped[int] = mapped_column(BigInteger, nullable=False)
    net_recv_bytes: Mapped[int] = mapped_column(BigInteger, nullable=False)