import datetime as dt
import sys
import logging
import os
import tweepy
print(tweepy.__version__)
import NewsSocialSignaling
import json
import os


class Helper:

    @staticmethod
    def is_linux():
        return sys.platform == "linux" or sys.platform == "linux2"

    @staticmethod
    def initialize_logger(log_path):
        logger = logging.getLogger('news_social_signaling')
        logger.setLevel(logging.DEBUG)

        # create console handler and set level info
        handler = logging.StreamHandler()
        handler.setLevel(logging.INFO)
        logger.addHandler(handler)

        # create file handler
        handler = logging.FileHandler(log_path, mode='w')
        handler.setLevel(logging.DEBUG)
        logger.addHandler(handler)
        return logger

    #@staticmethod
    #def tweepy_api(auth_dic, wait_on_rate_limit):
    #    # Instantiate API
    #    auth = Helper.tweepy_auth(auth_dic)
    #    auth.set_access_token(auth_dic['ACCESS_TOKEN'], auth_dic['ACCESS_TOKEN_SECRET'])
    #    api = tweepy.API(auth, wait_on_rate_limit=wait_on_rate_limit, wait_on_rate_limit_notify=True)
    #    return api

    #@staticmethod
    #def tweepy_auth(auth_dic):
    #    consumer_key = auth_dic['CONSUMER_KEY']
    #    consumer_secret = auth_dic['CONSUMER_SECRET']
    #    auth = tweepy.OAuthHandler(consumer_key, consumer_secret)
    #    return auth

    @staticmethod
    def month_diff(d1, d2):
        """
        Returns d1 - d2 in months
        :param d1: end date
        :param d2: start date
        :return: int (months)
        """
        return (d1.year - d2.year) * 12 + d1.month - d2.month

    @staticmethod
    def load_keys():
        with open(NewsSocialSignaling.Config.key_pathApiV2, 'r') as f:
            keys = json.load(f)

        # set google credential path
        os.environ["GOOGLE_APPLICATION_CREDENTIALS"] = NewsSocialSignaling.Config.google_credentials_path
        return keys

    @staticmethod
    def merge_pagination(master, using, page_ix):
        for d in (master, using):
            assert list(d.keys()) == ['data', 'includes', 'errors', 'meta']
            assert isinstance(d['data'], list) == True
            assert isinstance(d['includes'], dict) == True
            assert isinstance(d['errors'], list) == True
            assert isinstance(d['meta'], dict) == True
            assert list(d['includes'].keys()) == ['tweets']
            assert isinstance(d['includes']['tweets'], list) == True
        output = dict()
        output['data'] = master['data'] + using['data']
        output['includes'] = dict()
        output['includes']['tweets'] = master['includes']['tweets'] + using['includes']['tweets']
        output['errors'] = master['errors'] + using['errors']
        output['meta'] = {}
        for key, value in master['meta'].items():
            if not key[-1].isdigit():
                output['meta'][key + str(page_ix)] = value
            else:
                output['meta'][key] = value
        for key, value in using['meta'].items():
            output['meta'][key + str(page_ix + 1)] = value
        return output

assert Helper.month_diff(dt.date.today(), dt.date(2020, 1, 1)) > 0