from __future__ import annotations

import argparse
import json
import sys
from pathlib import Path

PROJECT_ROOT = Path(__file__).resolve().parents[1]
if str(PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(PROJECT_ROOT))

from src.executive_assistant.agent import BaselineAgent, OpenRouterPolicy
from src.executive_assistant.config import OpenRouterConfig, TrainingRuntimeConfig, load_env_file
from src.executive_assistant.runner import EpisodeRunner


def build_policy(provider: str, model_name: str) -> object:
    if provider == "baseline":
        return BaselineAgent()
    if provider == "openrouter":
        load_env_file(TrainingRuntimeConfig().env_file)
        config = OpenRouterConfig.from_env()
        config = OpenRouterConfig(
            api_key=config.api_key,
            model_name=model_name,
            base_url=config.base_url,
            site_url=config.site_url,
            app_name=config.app_name,
            temperature=config.temperature,
            max_tokens=config.max_tokens,
        )
        return OpenRouterPolicy(config=config)
    raise ValueError(f"Unsupported provider: {provider}")


def main() -> None:
    load_env_file(TrainingRuntimeConfig().env_file)
    parser = argparse.ArgumentParser(description="Run a single policy episode.")
    parser.add_argument("--task", required=True)
    parser.add_argument("--provider", choices=["baseline", "openrouter"], default="baseline")
    parser.add_argument("--model", default="google/gemma-4-31b-it")
    parser.add_argument("--max-steps", type=int, default=12)
    args = parser.parse_args()

    runner = EpisodeRunner(policy=build_policy(args.provider, args.model), max_steps=args.max_steps)
    trace = runner.run(args.task)
    print(json.dumps(trace.to_dict(), indent=2))


if __name__ == "__main__":
    main()