import base64
import hashlib
import hmac
import json
from unittest import mock


def make_response(payload: dict) -> mock.MagicMock:
    m = mock.MagicMock()
    m.content = json.dumps(payload).encode()
    m.status_code = 200
    m.raise_for_status.return_value = None
    return m


def twilio_signature(auth_token: str, url: str, params: dict) -> str:
    s = url
    for key in sorted(params.keys()):
        s += f"{key}{params[key]}"
    digest = hmac.new(
        auth_token.encode("utf-8"), s.encode("utf-8"), hashlib.sha1
    ).digest()
    return base64.b64encode(digest).decode("utf-8")