"""notification_policy singleton (global severity rule)

Revision ID: 007
Revises: 006
"""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "007"
down_revision: Union[str, None] = "006"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "notification_policy",
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("min_severity", sa.String(length=16), nullable=False, server_default="warning"),
        sa.Column("use_telegram", sa.Boolean(), nullable=False, server_default=sa.text("true")),
        sa.Column("use_webhook", sa.Boolean(), nullable=False, server_default=sa.text("false")),
        sa.Column("use_email", sa.Boolean(), nullable=False, server_default=sa.text("false")),
        sa.PrimaryKeyConstraint("id"),
    )
    op.execute(
        sa.text(
            "INSERT INTO notification_policy (id, min_severity, use_telegram, use_webhook, use_email) "
            "VALUES (1, 'warning', true, false, false)"
        )
    )


def downgrade() -> None:
    op.drop_table("notification_policy")