"""Create an isolated single-stage task without starting its workflow."""

from __future__ import annotations

import argparse
from dataclasses import replace
import json
from pathlib import Path
import secrets
import sys

from app.cad_agent.composition import compose_cad_services
from app.settings import get_settings


def _arguments() -> argparse.Namespace:
    parser = argparse.ArgumentParser(description="Create one isolated Authoring CDSL evaluation task.")
    parser.add_argument("--report-root", required=True, type=Path)
    parser.add_argument("--prompt", required=True)
    parser.add_argument("--task-id")
    return parser.parse_args()


def main() -> int:
    arguments = _arguments()
    root = arguments.report_root.resolve()
    settings = get_settings()
    services = compose_cad_services(replace(
        settings,
        task_root=root / "artifacts",
        conversation_root=root / "conversations",
    ))
    task_id = arguments.task_id or f"cad_{secrets.token_hex(6)}"
    services.workflow.create_task(task_id, arguments.prompt)
    print(json.dumps({"task_id": task_id, "report_root": str(root)}, ensure_ascii=False))
    return 0


if __name__ == "__main__":
    sys.exit(main())