import yfinance as yf
# youtube-search-python 추가 임포트
from youtubesearchpython import VideosSearch

product_catalog = {
    "807ZPKBL9V": "SuperWidget",
    "1234567890": "MegaGadget"
}

def get_product_name_by_PID(PID: str) -> str:
    """
    Finds the name of a product by its Product ID
    """
    return product_catalog.get(PID, "Unknown product")

def get_stock_price(ticker: str) -> float:
    """
    Retrieves the latest stock price for a given ticker using yfinance.
    """
    stock = yf.Ticker(ticker)
    data = stock.history(period="1d")
    if not data.empty:
        return data['Close'].iloc[-1]
    return float('nan')

def search_youtube(query: str) -> str:
    """
    Searches YouTube for the given query and returns top 3 video titles & links.
    """
    # youtube-search-python 이용
    try:
        videosSearch = VideosSearch(query, limit=3)
        results = videosSearch.result()["result"]  # 실제 검색 결과
        
        if not results:
            return "No videos found for your query."

        # 결과에서 타이틀과 링크를 추출
        formatted_list = []
        for idx, item in enumerate(results, start=1):
            title = item.get("title", "No Title")
            link = item.get("link", "#")
            formatted_list.append(f"{idx}) [{title}]({link})")

        # 여러 줄로 묶어서 반환
        return "\n".join(formatted_list)

    except Exception as e:
        # 어떤 에러든 발생 시 안전하게 메시지 반환
        return f"Error searching YouTube: {str(e)}"