import os
from typing import List, Dict
import requests
from config.config import Config


class SearchTool:
    """Tavily web search wrapper with content extraction."""

    def __init__(self) -> None:
        self.api_key = os.getenv("TAVILY_API_KEY") or Config.TAVILY_API_KEY
        if not self.api_key:
            print("⚠️ WARNING: TAVILY_API_KEY not found!")
            # Don't raise error, allow graceful degradation
            self.api_key = None

    def search(self, query: str, num_results: int = 5) -> List[Dict]:
        """
        Search using Tavily API.
        Returns results with title, url, content (snippet from Tavily).
        """
        if not self.api_key:
            print("❌ Tavily search skipped - no API key")
            return []
        
        url = "https://api.tavily.com/search"
        payload = {
            "api_key": self.api_key,
            "query": query,
            "max_results": num_results,
            "include_answer": True,  # Get Tavily's AI answer
            "include_raw_content": False,
            "search_depth": "advanced"  # Better results
        }
        
        print(f"🔍 Tavily searching for: {query[:50]}...")
        
        try:
            resp = requests.post(url, json=payload, timeout=30)
            resp.raise_for_status()
            data = resp.json()
            
            results = data.get("results", [])
            
            # Add Tavily's answer as metadata if available
            tavily_answer = data.get("answer", "")
            if tavily_answer and results:
                results[0]["tavily_answer"] = tavily_answer
                print(f"  ✅ Tavily AI answer: {tavily_answer[:100]}...")
            
            print(f"  ✅ Tavily returned {len(results)} results")
            if results:
                print(f"  📋 First result: {results[0].get('title', 'N/A')}")
            return results
        except requests.exceptions.RequestException as e:
            print(f"❌ Tavily search error: {e}")
            return []
        except ValueError as e:
            print(f"❌ Tavily JSON error: {e}")
            return []