"""engine_event.run

Which run an event happened in. The payload always carried it and the persist
path dropped it, so reading one run's failures meant filtering the global list.
Rows written before this carry an empty string, the same as anything that
belongs to no run at all.

Revision ID: d4a71e9c2b58
Revises: c7e2b9f34a15
Create Date: 2026-08-27

"""

import sqlalchemy as sa
import sqlmodel.sql.sqltypes
from alembic import op

# revision identifiers, used by Alembic.
revision = "d4a71e9c2b58"
down_revision = "c7e2b9f34a15"
branch_labels = None
depends_on = None


def upgrade():
    op.add_column(
        "engine_event",
        sa.Column(
            "run",
            sqlmodel.sql.sqltypes.AutoString(length=64),
            nullable=False,
            server_default="",
        ),
    )
    op.create_index("ix_engine_event_run", "engine_event", ["run"])


def downgrade():
    op.drop_index("ix_engine_event_run", table_name="engine_event")
    op.drop_column("engine_event", "run")