"""CrewAI backend — uses crewai for task-oriented multi-agent discussion."""


def check_installed():
    try:
        import crewai  # noqa
        return True
    except ImportError:
        return False


def run(scenario_path: str, config: dict):
    if not check_installed():
        print("CrewAI is not installed. Run:\n  pip install meeting-room[crewai]")
        return []

    import yaml
    from crewai import Agent, Task, Crew, Process
    from meeting_room.scenario_loader import load_scenario

    scenario = load_scenario(scenario_path)
    roles = config["roles"]
    participants = scenario.get("participants", list(roles.keys()))

    agents = []
    for role_id in participants:
        role = roles[role_id]
        agent = Agent(
            role=role["name"],
            goal=role["system_prompt"].split(".")[0] + ".",
            backstory=role["system_prompt"].strip(),
            llm=f"{role['provider']}/{role['model']}",
            verbose=True,
        )
        agents.append(agent)

    discuss_task = Task(
        description=f"Discuss this problem as a group:\n\n{scenario['problem']}",
        agent=agents[0],
        expected_output="Final solution with arguments from each participant",
    )

    crew = Crew(
        agents=agents,
        tasks=[discuss_task],
        process=Process.sequential,
        verbose=True,
    )

    result = crew.kickoff()
    print(f"\n{'='*60}\nCREWAI RESULT:\n{'='*60}\n")
    print(result)
    return str(result)