"""add game monsters (DM-only HP tracking)

Revision ID: d4b2c8a09e51
Revises: c9a1d5e7f316
Create Date: 2026-09-01 17:00:00.000000

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

# revision identifiers, used by Alembic.
revision: str = 'd4b2c8a09e51'
down_revision: Union[str, None] = 'c9a1d5e7f316'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column(
        'games',
        sa.Column(
            'monsters', postgresql.JSONB(astext_type=sa.Text()), nullable=False,
            server_default='[]',
        ),
    )


def downgrade() -> None:
    op.drop_column('games', 'monsters')