"""Module  Contains code for making request to fahamu Api"""
# pylint: disable=C0301
import json
import time
from requests import Session
from requests.adapters import HTTPAdapter
from requests.adapters import Retry

from gn3.llms.errors import LLMError


class TimeoutHTTPAdapter(HTTPAdapter):
    """Set a default timeout for HTTP calls """
    def __init__(self, timeout, *args, **kwargs):
        """TimeoutHTTPAdapter constructor."""
        self.timeout = timeout
        super().__init__(*args, **kwargs)

    def send(self, *args, **kwargs):
        """Override :obj:`HTTPAdapter` send method to add a default timeout."""
        kwargs["timeout"] = (
            kwargs["timeout"] if kwargs.get("timeout") else self.timeout
        )
        return super().send(*args, **kwargs)


class GeneNetworkQAClient(Session):
    """GeneNetworkQA Client

    This class provides a client object interface to the GeneNetworkQA API.
    It extends the `requests.Session` class and includes authorization,
    base URL,
    request timeouts, and request retries.

    Args:
        api_key (str): API key.
        timeout (int, optional): Timeout value, defaults to 5.
        total_retries (int, optional): Total retries value, defaults to 5.
        backoff_factor (int, optional): Retry backoff factor value,
    defaults to 30.

    Usage:
        from genenetworkqa import GeneNetworkQAClient
        gnqa = GeneNetworkQAClient(account="account-name",
    api_key="XXXXXXXXXXXXXXXXXXX...")
    """

    def __init__(self, api_key, timeout=30,
                 total_retries=5, backoff_factor=2):
        super().__init__()
        self.headers.update(
            {"Authorization": "Bearer " + api_key})
        self.base_url = "https://genenetwork.fahamuai.com/api/tasks"
        self.answer_url = f"{self.base_url}/answers"
        self.feedback_url = f"{self.base_url}/feedback"
        self.query = ""

        adapter = TimeoutHTTPAdapter(
            timeout=timeout,
            max_retries=Retry(
                total=total_retries,
                status_forcelist=[429, 500, 502, 503, 504],
                backoff_factor=backoff_factor,
            ),
        )

        self.mount("https://", adapter)
        self.mount("http://", adapter)

    @staticmethod
    def negative_status_msg(response):
        """ handler for non 200 response from fahamu api"""
        return f"Error: Status code -{response.status_code}- Reason::{response.reason}"

    def ask(self, ex_url, query,  *args, **kwargs):
        """fahamu ask api interface"""
        self.query = query
        res = self.custom_request('POST', f"{self.base_url}{ex_url}", *args, **kwargs)
        return res, json.loads(res.text)

    def get_answer(self, task_obj, *args, **kwargs):
        """Fahamu get answer interface"""
        query = f"{self.answer_url}?task_id={task_obj['task_id']}"
        res = self.custom_request('GET', query, *args, **kwargs)
        return res, 1

    def custom_request(self, method, url, *args, **kwargs):
        """
        Make a custom request to the Fahamu API
        Note: We cannot use the adapter  above because Fahamu does not
        have a task_id status tracking system.
        If you query for a Fahamu task_id,
        you might receive `{message: No data}` with a 200 status code.
        This response is not conclusive since the task might be incomplete
        and the status code is incorrect as well.
        """
        max_retries = 50
        retry_delay = 3
        response_msg = {
            404: "Api endpoint Does not exist",
            500: "Use of Invalid Token/or the Fahamu Api is currently  down",
            400: "You sent a bad Fahamu request",
            401: "You do not have authorization to perform the request",
        }
        for _i in range(max_retries):
            response = super().request(method, url, *args, **kwargs)
            if response.ok:
                if method.lower() == "get" and not response.json().get("data"):
                    # note this is a dirty trick to check if fahamu has returned the results
                    # the issue is that the api only returns 500 or 200 satus code
                    # TODO: fix this on their end
                    time.sleep(retry_delay)
                    continue
                return response
            else:
                raise LLMError(f"Request error with code:\
                {response.status_code} occurred with reason:\
                {response_msg.get(response.status_code,response.reason)}",
                               self.query)
                #time.sleep(retry_delay)
        raise LLMError("Timeout error: We couldn't provide a response,Please try\
        to rephrase your question to receive feedback",
                       self.query)