state-hub/migrations/versions/o2j3k4l5m6n7_add_token_events.py

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"""add token_events table
Revision ID: o2j3k4l5m6n7
Revises: n1i2j3k4l5m6
Create Date: 2026-03-29
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID
revision = "o2j3k4l5m6n7"
down_revision = "n1i2j3k4l5m6"
branch_labels = None
depends_on = None
def upgrade() -> None:
op.create_table(
"token_events",
sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
sa.Column("task_id", UUID(as_uuid=True), sa.ForeignKey("tasks.id", ondelete="SET NULL"), nullable=True),
sa.Column("workstream_id", UUID(as_uuid=True), sa.ForeignKey("workstreams.id", ondelete="SET NULL"), nullable=True),
sa.Column("repo_id", UUID(as_uuid=True), sa.ForeignKey("managed_repos.id", ondelete="SET NULL"), nullable=True),
sa.Column("session_id", sa.Text(), nullable=True),
sa.Column("model", sa.Text(), nullable=True),
sa.Column("tokens_in", sa.Integer(), nullable=False),
sa.Column("tokens_out", sa.Integer(), nullable=False),
sa.Column("agent", sa.Text(), nullable=True),
sa.Column("ref_type", sa.Text(), nullable=True),
sa.Column("ref_id", sa.Text(), nullable=True),
sa.Column("note", sa.Text(), nullable=True),
sa.Column("created_at", sa.TIMESTAMP(timezone=True), server_default=sa.text("now()"), nullable=False),
)
op.create_index("ix_token_events_task_id", "token_events", ["task_id"])
op.create_index("ix_token_events_workstream_id", "token_events", ["workstream_id"])
op.create_index("ix_token_events_repo_id", "token_events", ["repo_id"])
op.create_index("ix_token_events_created_at", "token_events", ["created_at"])
def downgrade() -> None:
op.drop_index("ix_token_events_created_at", table_name="token_events")
op.drop_index("ix_token_events_repo_id", table_name="token_events")
op.drop_index("ix_token_events_workstream_id", table_name="token_events")
op.drop_index("ix_token_events_task_id", table_name="token_events")
op.drop_table("token_events")