"""Config.

Contains essential constants for project functioning.
"""

import os

import requests


LOOKER_MAIN_INSTANCE_CLIENT_ID = os.environ.get('LOOKER_MAIN_INSTANCE_CLIENT_ID')
LOOKER_MAIN_INSTANCE_CLIENT_SECRET = os.environ.get('LOOKER_MAIN_INSTANCE_CLIENT_SECRET')
LOOKER_MAIN_INSTANCE_URL = 'https://theorchard.looker.com:19999/api/3.1'

LOOKER_CLIENT_INSTANCE_CLIENT_ID = os.environ.get('LOOKER_CLIENT_INSTANCE_CLIENT_ID')
LOOKER_CLIENT_INSTANCE_CLIENT_SECRET = os.environ.get('LOOKER_CLIENT_INSTANCE_CLIENT_SECRET')
LOOKER_CLIENT_INSTANCE_URL = 'https://theorchardoem.looker.com:19999/api/3.1'


def get_api3_key(client_id, client_secret, instance='main'):
    credentials = {
        'client_id': client_id,
        'client_secret': client_secret
    }

    url = f'{LOOKER_MAIN_INSTANCE_URL}/login'

    if instance == 'client':
        url = f'{LOOKER_CLIENT_INSTANCE_URL}/login'

    auth = requests.post(url, params=credentials)

    return auth.json()['access_token']


LOOKER_MAIN_AUTH_TOKEN = get_api3_key(
    LOOKER_MAIN_INSTANCE_CLIENT_ID,
    LOOKER_MAIN_INSTANCE_CLIENT_SECRET
)

LOOKER_CLIENT_AUTH_TOKEN = get_api3_key(
    LOOKER_CLIENT_INSTANCE_CLIENT_ID,
    LOOKER_CLIENT_INSTANCE_CLIENT_SECRET,
    'client'
)

LOOKER_MAIN_VALIDATION = {'Authorization': f'token {LOOKER_MAIN_AUTH_TOKEN}'}
LOOKER_CLIENT_VALIDATION = {'Authorization': f'token {LOOKER_CLIENT_AUTH_TOKEN}'}

GITHUB_TOKEN = os.environ.get('GITHUB_TOKEN')