"""Create ai_decision_records table for oversight.

Revision ID: 0128
Revises: 0127
"""

from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import UUID, JSONB

revision = "0128"
down_revision = "0127"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.create_table(
        "ai_decision_records",
        sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")),
        sa.Column("tenant_id", UUID(as_uuid=True), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False, index=True),
        sa.Column("owner_id", UUID(as_uuid=True), nullable=True, index=True),
        sa.Column("agent_run_id", UUID(as_uuid=True), nullable=False, index=True),
        sa.Column("recommendation", sa.Text, nullable=False),
        sa.Column("evidence", JSONB, nullable=False, server_default=sa.text("'{}'")),
        sa.Column("reviewer_id", UUID(as_uuid=True), nullable=True),
        sa.Column("decision", sa.String(20), nullable=True),
        sa.Column("decision_timestamp", sa.String(40), nullable=True),
        sa.Column("deviation_note", sa.Text, nullable=True),
        sa.Column("created_at", sa.TIMESTAMP(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.Column("updated_at", sa.TIMESTAMP(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.Column("deleted_at", sa.TIMESTAMP(timezone=True), nullable=True),
    )
    op.create_index("ix_ai_decision_records_tenant_id", "ai_decision_records", ["tenant_id"])
    op.create_index("ix_ai_decision_records_agent_run_id", "ai_decision_records", ["agent_run_id"])


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