import logging
from typing import Optional, List

import requests

from fastapi import Request


from open_webui.retrieval.web.main import SearchResult, get_filtered_results
from open_webui.utils.headers import include_user_info_headers
from open_webui.env import FORWARD_SESSION_INFO_HEADER_CHAT_ID

log = logging.getLogger(__name__)


def search_external(
    request: Request,
    external_url: str,
    external_api_key: str,
    query: str,
    count: int,
    filter_list: Optional[List[str]] = None,
    user=None,
) -> List[SearchResult]:
    try:
        headers = {
            'User-Agent': 'Open WebUI (https://github.com/open-webui/open-webui) RAG Bot',
            'Authorization': f'Bearer {external_api_key}',
        }
        headers = include_user_info_headers(headers, user)

        chat_id = getattr(request.state, 'chat_id', None)
        if chat_id:
            headers[FORWARD_SESSION_INFO_HEADER_CHAT_ID] = str(chat_id)

        response = requests.post(
            external_url,
            headers=headers,
            json={
                'query': query,
                'count': count,
            },
        )
        response.raise_for_status()
        results = response.json()
        if filter_list:
            results = get_filtered_results(results, filter_list)
        results = [
            SearchResult(
                link=result.get('link'),
                title=result.get('title'),
                snippet=result.get('snippet'),
            )
            for result in results[:count]
        ]
        log.info(f'External search results: {results}')
        return results
    except Exception as e:
        log.error(f'Error in External search: {e}')
        return []