from tavily import TavilyClient
import os

tavily = TavilyClient(api_key=os.getenv("TAVILY_API_KEY"))

def perform_search(query):
    """Perform web search using Tavily API"""
    try:
        if not os.getenv("TAVILY_API_KEY"):
            return "Web search unavailable (API key not configured)"
        
        response = tavily.search(
            query=query, 
            max_results=5,
            include_answer=True,
            include_raw_content=False
        )
        
        results = []
        if response.get('answer'):
            results.append(f"Direct Answer: {response['answer']}")
        
        for result in response.get('results', []):
            results.append(f"Source: {result['content']}")
        
        return "\n\n".join(results) if results else "No relevant results found."
    except Exception as e:
        return f"Search failed: {str(e)}"