"""M7 candidate capability routes and lab approval provenance.

Revision ID: 20260825_0010
Revises: 20260825_0009
"""

from collections.abc import Sequence

import sqlalchemy as sa

from alembic import op

revision: str = "20260825_0010"
down_revision: str | None = "20260825_0009"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.alter_column(
        "capability_deployments",
        "production_approval_id",
        existing_type=sa.Uuid(),
        nullable=True,
    )
    op.add_column(
        "capability_deployments",
        sa.Column("execution_approval_id", sa.Uuid(), nullable=True),
    )
    op.create_index(
        "ix_capability_deployments_execution_approval_id",
        "capability_deployments",
        ["execution_approval_id"],
    )
    op.create_foreign_key(
        "fk_capability_deployments_execution_approval_id",
        "capability_deployments",
        "execution_approvals",
        ["execution_approval_id"],
        ["id"],
        ondelete="RESTRICT",
    )
    op.create_table(
        "capability_experiment_routes",
        sa.Column("route_key", sa.String(length=128), nullable=False),
        sa.Column("capability_contract_id", sa.Uuid(), nullable=False),
        sa.Column("capability_deployment_id", sa.Uuid(), nullable=False),
        sa.Column("status", sa.String(length=32), nullable=False),
        sa.Column("purpose", sa.Text(), nullable=False),
        sa.Column("evidence", sa.JSON(), nullable=False),
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
        sa.ForeignKeyConstraint(
            ["capability_contract_id"], ["capability_contracts.id"], ondelete="RESTRICT"
        ),
        sa.ForeignKeyConstraint(
            ["capability_deployment_id"], ["capability_deployments.id"], ondelete="RESTRICT"
        ),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("route_key"),
    )
    op.create_index(
        "ix_capability_experiment_routes_route_key",
        "capability_experiment_routes",
        ["route_key"],
        unique=True,
    )
    op.create_index(
        "ix_capability_experiment_routes_capability_contract_id",
        "capability_experiment_routes",
        ["capability_contract_id"],
    )
    op.create_index(
        "ix_capability_experiment_routes_capability_deployment_id",
        "capability_experiment_routes",
        ["capability_deployment_id"],
    )
    op.create_index(
        "ix_capability_experiment_routes_status",
        "capability_experiment_routes",
        ["status"],
    )


def downgrade() -> None:
    op.drop_table("capability_experiment_routes")
    op.drop_constraint(
        "fk_capability_deployments_execution_approval_id",
        "capability_deployments",
        type_="foreignkey",
    )
    op.drop_index(
        "ix_capability_deployments_execution_approval_id",
        table_name="capability_deployments",
    )
    op.drop_column("capability_deployments", "execution_approval_id")
    op.alter_column(
        "capability_deployments",
        "production_approval_id",
        existing_type=sa.Uuid(),
        nullable=False,
    )