"""add ai orchestration runs

Revision ID: add_ai_orchestration_runs
Revises: add_signal_source_orchestration_tables
Create Date: 2026-03-07
"""

from __future__ import annotations

from alembic import op
import sqlalchemy as sa


revision = "add_ai_orchestration_runs"
down_revision = "add_signal_source_orchestration_tables"
branch_labels = None
depends_on = None


def _table_exists(bind, table_name: str) -> bool:
    inspector = sa.inspect(bind)
    return inspector.has_table(table_name)


def _index_exists(bind, table_name: str, index_name: str) -> bool:
    inspector = sa.inspect(bind)
    indexes = inspector.get_indexes(table_name)
    return any(idx.get("name") == index_name for idx in indexes)


def _create_index_if_not_exists(
    bind,
    *,
    index_name: str,
    table_name: str,
    columns: list[str],
    unique: bool = False,
) -> None:
    if _index_exists(bind, table_name, index_name):
        return
    op.create_index(index_name, table_name, columns, unique=unique)


def _drop_index_if_exists(bind, index_name: str, table_name: str) -> None:
    if _index_exists(bind, table_name, index_name):
        op.drop_index(index_name, table_name=table_name)


def upgrade() -> None:
    bind = op.get_bind()

    if not _table_exists(bind, "ai_orchestration_runs"):
        op.create_table(
            "ai_orchestration_runs",
            sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
            sa.Column("tenant_id", sa.BigInteger(), nullable=False, server_default="1"),
            sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now()),
            sa.Column("updated_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now(), onupdate=sa.func.now()),
            sa.Column("trace_id", sa.String(length=64), nullable=False),
            sa.Column("run_type", sa.String(length=40), nullable=False),
            sa.Column("project_id", sa.BigInteger(), nullable=False),
            sa.Column("signal_id", sa.BigInteger(), nullable=True),
            sa.Column("response_mode", sa.String(length=16), nullable=False, server_default="fast"),
            sa.Column("status", sa.String(length=20), nullable=False, server_default="queued"),
            sa.Column("planner_status", sa.String(length=20), nullable=True),
            sa.Column("openclaw_status", sa.String(length=20), nullable=True),
            sa.Column("worker_total", sa.Integer(), nullable=False, server_default="0"),
            sa.Column("worker_completed", sa.Integer(), nullable=False, server_default="0"),
            sa.Column("worker_failed", sa.Integer(), nullable=False, server_default="0"),
            sa.Column("summary", sa.Text(), nullable=True),
            sa.Column("planner_diagnostics", sa.JSON(), nullable=True),
            sa.Column("result_payload", sa.JSON(), nullable=True),
            sa.Column("created_by_user_id", sa.BigInteger(), nullable=True),
            sa.Column("started_at", sa.TIMESTAMP(), nullable=True),
            sa.Column("completed_at", sa.TIMESTAMP(), nullable=True),
            sa.ForeignKeyConstraint(["project_id"], ["projects.id"]),
            sa.ForeignKeyConstraint(["signal_id"], ["signals.id"]),
            sa.ForeignKeyConstraint(["created_by_user_id"], ["users.id"]),
            sa.UniqueConstraint("tenant_id", "trace_id", name="uq_ai_orchestration_run_trace_id"),
        )

    if _table_exists(bind, "ai_orchestration_runs"):
        for index_name, columns in (
            ("ix_ai_orchestration_runs_tenant_id", ["tenant_id"]),
            ("ix_ai_orchestration_runs_trace_id", ["trace_id"]),
            ("ix_ai_orchestration_runs_run_type", ["run_type"]),
            ("ix_ai_orchestration_runs_project_id", ["project_id"]),
            ("ix_ai_orchestration_runs_signal_id", ["signal_id"]),
            ("ix_ai_orchestration_runs_response_mode", ["response_mode"]),
            ("ix_ai_orchestration_runs_status", ["status"]),
            ("ix_ai_orchestration_runs_planner_status", ["planner_status"]),
            ("ix_ai_orchestration_runs_openclaw_status", ["openclaw_status"]),
            ("ix_ai_orchestration_runs_created_by_user_id", ["created_by_user_id"]),
        ):
            _create_index_if_not_exists(bind, index_name=index_name, table_name="ai_orchestration_runs", columns=columns)


def downgrade() -> None:
    bind = op.get_bind()
    if _table_exists(bind, "ai_orchestration_runs"):
        for index_name in (
            "ix_ai_orchestration_runs_created_by_user_id",
            "ix_ai_orchestration_runs_openclaw_status",
            "ix_ai_orchestration_runs_planner_status",
            "ix_ai_orchestration_runs_status",
            "ix_ai_orchestration_runs_response_mode",
            "ix_ai_orchestration_runs_signal_id",
            "ix_ai_orchestration_runs_project_id",
            "ix_ai_orchestration_runs_run_type",
            "ix_ai_orchestration_runs_trace_id",
            "ix_ai_orchestration_runs_tenant_id",
        ):
            _drop_index_if_exists(bind, index_name, "ai_orchestration_runs")
        op.drop_table("ai_orchestration_runs")