"""Catalyst summary agent."""

from __future__ import annotations


def build_catalyst_summary(theme_views: list[dict]) -> dict:
    strong = [item for item in theme_views if item.get("heat_score", 0) >= 70]
    themes = [item["theme"] for item in strong[:3]]
    if themes:
        summary = f"强催化/强热度主题集中在 {'、'.join(themes)}。"
    elif theme_views:
        summary = "主题热度存在但强催化不足，需等待新闻、政策或资金进一步确认。"
    else:
        summary = "暂未形成有效主题催化。"
    return {"summary": summary, "strong_theme_count": len(strong), "themes": themes}