async def summarize_debate(session):
    """
    Generate a summary of the debate session
    """
    if not session.rounds:
        return "No rounds were completed in this debate."

    # Extract key points from each side
    pro_points = []
    con_points = []

    for round_data in session.rounds:
        if round_data.stance.value == "pro":
            pro_points.append(round_data.content)
        else:
            con_points.append(round_data.content)

    # Create a summary
    summary_parts = [
        f"辩论主题: {session.topic}",
        "",
        "正方主要观点:",
    ]

    for i, point in enumerate(pro_points, 1):
        summary_parts.append(f"{i}. {point[:100]}...")  # Truncate for brevity

    summary_parts.append("")
    summary_parts.append("反方主要观点:")

    for i, point in enumerate(con_points, 1):
        summary_parts.append(f"{i}. {point[:100]}...")  # Truncate for brevity

    summary_parts.append("")
    summary_parts.append("总结: 本次辩论完成了 {} 轮，双方就 '{}' 主题进行了充分的讨论。".format(
        len(session.rounds), session.topic
    ))

    return "\n".join(summary_parts)