backend/api/research.py

from fastapi import APIRouter, HTTPException, Query
from pydantic import BaseModel
import requests
from bs4 import BeautifulSoup
from duckduckgo_search import DDGS

router = APIRouter()

class SearchResponse(BaseModel):
    results: list
    error: str = None

@router.get("/search", response_model=SearchResponse)
def perform_search(q: str = Query(..., description="The search query")):
    """
    Performs a web search using DuckDuckGo.
    """
    try:
        with DDGS() as ddgs:
            results = list(ddgs.text(q, max_results=10))
        return SearchResponse(results=results)
    except Exception as e:
        return SearchResponse(results=[], error=str(e))

@router.get("/scrape")
def perform_scrape(url: str = Query(..., description="The URL to scrape")):
    """
    Scrapes the text content of a given URL using Jina Reader (or fallback).
    """
    try:
        # We can use jina.ai for extremely clean markdown extraction
        jina_url = f"https://r.jina.ai/{url}"
        response = requests.get(jina_url, timeout=15)
        response.raise_for_status()
        return {"text": response.text}
    except Exception as e:
        return {"error": str(e)}

@router.get("/shop")
def perform_shopping(q: str = Query(..., description="The shopping search query")):
    """
    Performs a shopping search. Since DDG doesn't have a native shopping API in the python package,
    we can use a fallback or simply search with "kaufen" appended.
    (This can be expanded later).
    """
    try:
        with DDGS() as ddgs:
            # Simple text search for now, could parse images/prices if needed
            results = list(ddgs.text(q + " kaufen", max_results=5))
        return {"results": results}
    except Exception as e:
        return {"error": str(e)}