import requests
import json
from requests.adapters import HTTPAdapter
from urllib3.util.retry import Retry
from flask import current_app


def requests_retry_session(retries=3, backoff_factor=0.3, status_forcelist=(500, 502, 504), session=None):
    """ Returns a requests session with retry options

    Args:
        retries (int, optional): Defaults to 3.
        backoff_factor (float, optional): A backoff factor to apply between attempts after the second try. Defaults to 0.3.
        status_forcelist (tuple, optional):  Defaults to (500, 502, 504).
        session ([type], optional): Defaults to None.

    Returns:
        session_object: Request session
    """
    session = session or requests.Session()
    retry = Retry(
        total=retries,
        read=retries,
        connect=retries,
        backoff_factor=backoff_factor,
        status_forcelist=status_forcelist,
    )
    adapter = HTTPAdapter(max_retries=retry)
    session.mount('http://', adapter)
    session.mount('https://', adapter)
    return session


def send_request(url='', payload=None, headers={}):
    url = f"{current_app.config.get('SOCKET_ENDPOINT')}{url}"
    try:
        r = requests_retry_session().post(url, data=json.dumps(payload), headers=headers)
        return (str(r.elapsed.total_seconds()), str(r.status_code), str(r.reason), r.content)
    except:
        pass

    return True