"""Add LVM/ZFS metrics fields to host_metrics

Revision ID: 0008_add_lvm_zfs_metrics
Revises: 0007_add_alerts_table
Create Date: 2025-12-12

"""

from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


revision: str = '0008_add_lvm_zfs_metrics'
down_revision: Union[str, None] = '0007_add_alerts_table'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column('host_metrics', sa.Column('lvm_info', sa.JSON(), nullable=True))
    op.add_column('host_metrics', sa.Column('zfs_info', sa.JSON(), nullable=True))


def downgrade() -> None:
    op.drop_column('host_metrics', 'zfs_info')
    op.drop_column('host_metrics', 'lvm_info')