from __future__ import annotations
import datetime, pprint, pytz, random, requests, time
from requests.auth import HTTPBasicAuth

from typing import Dict, List, Optional, Set, Union
from pydantic import BaseModel, EmailStr, Field, PrivateAttr, ValidationError, validator

from app.db_sql import redis_lookup_id_random, sql_insert, sql_select, sql_update
from app.lib_general import log, logging, logger_reset

from app.methods.person_methods import get_person_rec_w_external_id, load_person_obj, update_person_kiss


app = {}
app['client_id'] = '0oalt6dz82oSbN9ok1t7' # From Cvent Developer Portal
app['secret'] = 'gQY96qffZAuB_44k73C_hn_MHeByBS8LXHj1vPRm' # From Cvent Developer

api = {}
api['base_url'] = 'https://api-platform.cvent.com/ea' # Including /ea as the Cvent version. EA = Early Access
api['headers'] = {} # { 'Content-Type': content_type, 'Authorization': 'Basic '+str(cvent_authorization_base64) }


# Updated 2022-02-01
@logger_reset
def get_access_token():
    log.setLevel(logging.INFO) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    log.debug(f'API data:\n{api}')

    # api['access_token'] = 'eyJraWQiOiJXdWtMTUFGNFkxM1ZUQmFnV1I4WU94ZVdPU3dIYXM5RTRyaFhqc1p5X2JVIiwiYWxnIjoiUlMyNTYifQ.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.1BGae5F97OpRVlW_z7JFwhFuY5xSj-CTCdph4dy3mSW1fjSb2rXoTTMNqdBwssG8S5XD62MYabx1WpM9xHB1WPw4ydP3xDqpMDO_h1Im1wfdlkami8Xvm1vX293IibEG8sZwjmD7x1UoWE7svwLLKJ8yukpJXaQbrd3qhFpfCyyi-eFYLYYjRjkMaGSBDMQKUv9VV62afGNekkC3ARNJzUqe0Il6Wz7aj109q_gvFYr6XybYdMvXanWxoY9C2-b7g1AtmN7iGRqz2znIHLr7Vav8xvoXYXaWzaq1gbfd4QwrksBCaw4lpZWKJdM0bhCaiOiPGfKktGVQN2r0gaQ0nA'

    if 'access_token' in api:
        access_token = api.get('access_token')
        log.info(f'Cvent Access Token found: {access_token}')
    if 'expire_on' in api and datetime.datetime.now() < api['expire_on']:
        expire_on = api.get('expire_on')
        log.info(f'Cvent Access Token is current: {expire_on}')
        return api

    endpoint = '/oauth2/token'
    uri = api['base_url']+endpoint

    data = { 'grant_type': 'client_credentials', 'client_id': app['client_id'] }

    log.debug(f'Oauth Token Request Data:\n{api}')

    resp = requests.post(url=uri, data=data, auth=HTTPBasicAuth(app['client_id'], app['secret'])) # Sending as HTML form data

    log.debug(f'Status Code: {resp.status_code}')
    log.debug(f'Headers: {resp.headers}')
    log.debug(f'Encoding: {resp.encoding}')
    log.debug(f'JSON: {resp.json()}')
    # log.debug('Text:', resp.text)

    response_data = resp.json()

    api['access_token'] = response_data['access_token']
    api['expires_in'] = response_data['expires_in']
    api['token_type'] = response_data['token_type']

    # current_datetime = datetime.datetime.now()
    # log.debug(type(current_datetime))
    # log.debug(current_datetime)

    # expires_in = response_data['expires_in']
    # log.debug(type(expires_in))
    # log.debug(expires_in)

    api['expire_on'] = datetime.datetime.now() + datetime.timedelta(seconds=response_data['expires_in'])

    # log.debug(type(api['expire_on']))
    # log.debug(api['expire_on'])

    api['headers']['Accept'] = 'application/json'
    api['headers']['x-api-key'] = app['client_id']
    api['headers']['Authorization'] = 'Bearer '+api['access_token']

    log.debug(api)

    # f = open("api_access.txt", "wb")
    # f.write(pprint.pformat(api, indent=2, width=160))
    # pickle.dump(api, f)
    # f.close()

    return api


# Updated 2022-01-31
@logger_reset
def get_contact_custom_field_list(api):
    log.setLevel(logging.DEBUG) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    endpoint = '/custom-fields'
    uri = api['base_url']+endpoint

    params = { 'filter': "category eq 'Contact'" }

    resp = requests.get(url=uri, headers=api['headers'], params=params)

    log.debug('Status Code:', resp.status_code)
    log.debug('Headers:', resp.headers)
    log.debug('Encoding:', resp.encoding)
    log.debug('JSON:', resp.json())
    # log.debug('Text:', resp.text)

    response_data = resp.json()

    # f = open('contact_custom_field_list.txt', 'w')
    # f.write(pprint.pformat(response_data, indent=2, width=160))

    return response_data


# Updated 2022-01-31
@logger_reset
def get_contact_list(api, external_id: str=False):
    log.setLevel(logging.DEBUG) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    endpoint = '/contacts'
    uri = api['base_url']+endpoint

    # External ID for IDAA: UUID = '609ab766-7d79-4a9d-a72c-f126412659ee'
    # customField.609ab766-7d79-4a9d-a72c-f126412659ee eq external_id

    params = {}
    if external_id: params['filter'] = f"customField.609ab766-7d79-4a9d-a72c-f126412659ee eq '{external_id}'"
    elif external_id is None:
        params['filter'] = f"deleted eq 'False' and customField.609ab766-7d79-4a9d-a72c-f126412659ee lt '1'"
    else: params['filter'] = f"deleted eq 'False'"

    resp = requests.get(url=uri, headers=api['headers'], params=params)

    response_data = resp.json()

    # if external_id: filename = f'contact_{external_id}.txt'
    # elif external_id is None: filename = f'contact_list_no_external_id.txt'
    # else: filename = 'contact_list.txt'

    # f = open(filename, 'w')
    # f.write(pprint.pformat(response_data, indent=2, width=160))

    return response_data


# Updated 2022-02-01
@logger_reset
def get_contact_id(contact_id: str):
    log.setLevel(logging.DEBUG) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    # if 'access_token' in api: pass
    # else: get_access_token()
    get_access_token()

    log.warning('Sleeping for 1 second to avoid Cvent rate limit...')
    time.sleep(1)

    endpoint = f'/contacts/{contact_id}'
    uri = api['base_url']+endpoint

    params = {}

    resp = requests.get(url=uri, headers=api['headers'], params=params)

    response_data = resp.json()
    log.debug(response_data)

    if 'message' in response_data and response_data['message'] == 'Too Many Requests': return False

    # filename = f'contact_{contact_id}.txt'

    # f = open(filename, 'w')
    # f.write(pprint.pformat(response_data, indent=2, width=160))

    return response_data


# Updated 2022-02-01
@logger_reset
def modify_contact_id(contact_id: str, field_list: list=[], custom_field_id: str=None, custom_field_value: str=None):
    log.setLevel(logging.DEBUG) # DEBUG, INFO, WARNING, ERROR, EXCEPTION, CRITICAL
    log.debug(locals())

    get_access_token()

    if custom_field_id:
        endpoint = f'/contacts/{contact_id}/custom-fields/{custom_field_id}/answers'
    elif field_list:
        endpoint = f'/contacts/{contact_id}'
    else:
        log.error('Missing required parameters')
        return False
    uri = api['base_url']+endpoint

    params = {}

    data = {}
    if custom_field_id:
        data['id'] = custom_field_id
        data['value'] = custom_field_value
    else:
        data = field_list
        data['id'] = contact_id

    if custom_field_id:
        resp = requests.put(url=uri, headers=api['headers'], params=params, json=data)
    else:
        resp = requests.patch(url=uri, headers=api['headers'], params=params, json=data)

    response_data = resp.json()
    log.debug(response_data)

    if 'message' in response_data and response_data['message'] == 'Too Many Requests': return False

    return response_data