"""Add expiring claims for governed-rule cleanup workers."""

from alembic import op

revision = "20260723_190"
down_revision = "20260723_180"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.execute(
        """
        ALTER TABLE public.rule_violation_samples
            ADD COLUMN cleanup_claim_expires_at TIMESTAMPTZ;

        CREATE INDEX idx_rule_violation_sample_cleanup_lease
            ON public.rule_violation_samples(
                cleanup_claim_expires_at, expires_at, id
            );

        ALTER TABLE public.rule_sql_staging_receipts
            ADD COLUMN cleanup_claim_expires_at TIMESTAMPTZ;

        CREATE INDEX idx_rule_sql_receipt_cleanup_lease
            ON public.rule_sql_staging_receipts(
                cleanup_claim_expires_at, expires_at, id
            );
        """
    )


def downgrade() -> None:
    raise RuntimeError("rule cleanup leases are forward-only")