"""Add 'cancelled' value to task_status enum."""

from alembic import op

revision = "0031"
down_revision = "0030"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.execute("ALTER TYPE task_status ADD VALUE IF NOT EXISTS 'cancelled'")


def downgrade() -> None:
    # PostgreSQL does not support removing enum values without a full type rebuild.
    # Downgrade is a no-op; the value simply becomes unused.
    pass