import os
import logging
import datetime
 
from pylons import config
 
import ga_model
 
#from ga_client import GA
 
log = logging.getLogger('ckanext.ga-report')
 
FORMAT_MONTH = '%Y-%m'
 
class DownloadAnalytics(object):
    '''Downloads and stores analytics info'''
 
    def __init__(self, service=None, profile_id=None):
        self.period = config['ga-report.period']
        self.service = service
        self.profile_id = profile_id
 
 
    def specific_month(self, date):
        import calendar
 
        first_of_this_month = datetime.datetime(date.year, date.month, 1)
        _, last_day_of_month = calendar.monthrange(int(date.year), int(date.month))
        last_of_this_month =  datetime.datetime(date.year, date.month, last_day_of_month)
        periods = ((date.strftime(FORMAT_MONTH),
                    last_day_of_month,
                    first_of_this_month, last_of_this_month),)
        self.download_and_store(periods)
 
 
    def latest(self):
        if self.period == 'monthly':
            # from first of this month to today
            now = datetime.datetime.now()
            first_of_this_month = datetime.datetime(now.year, now.month, 1)
            periods = ((now.strftime(FORMAT_MONTH),
                        now.day,
                        first_of_this_month, now),)
        else:
            raise NotImplementedError
        self.download_and_store(periods)
 
 
    def for_date(self, for_date):
        assert isinstance(since_date, datetime.datetime)
        periods = [] # (period_name, period_complete_day, start_date, end_date)
        if self.period == 'monthly':
            first_of_the_months_until_now = []
            year = for_date.year
            month = for_date.month
            now = datetime.datetime.now()
            first_of_this_month = datetime.datetime(now.year, now.month, 1)
            while True:
                first_of_the_month = datetime.datetime(year, month, 1)
                if first_of_the_month == first_of_this_month:
                    periods.append((now.strftime(FORMAT_MONTH),
                                    now.day,
                                    first_of_this_month, now))
                    break
                elif first_of_the_month < first_of_this_month:
                    in_the_next_month = first_of_the_month + datetime.timedelta(40)
                    last_of_the_month = datetime.datetime(in_the_next_month.year,
                                                           in_the_next_month.month, 1)\
                                                           - datetime.timedelta(1)
                    periods.append((now.strftime(FORMAT_MONTH), 0,
                                    first_of_the_month, last_of_the_month))
                else