from django.shortcuts import  redirect
from eventplanner_gcal.google_sync import syncFromGoogleToLocal, syncFromLocalToGoogle
from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
from pprint import pformat
from eventplanner_gcal.google_sync import checkIfGoogleCallbackIsValid

import logging

logger = logging.getLogger( __name__ )


def runSync( request ):
    syncFromLocalToGoogle()
    return redirect("/")

@csrf_exempt
def gcalApiCallback( request ):
    # TODO check channel info here
    token = ""
    if 'HTTP_X_GOOG_CHANNEL_TOKEN' in request.META: token = request.META['HTTP_X_GOOG_CHANNEL_TOKEN']
    channelID = ""
    if 'HTTP_X_GOOG_CHANNEL_ID' in request.META: channelID = request.META['HTTP_X_GOOG_CHANNEL_ID']
    resourceID = ""
    if 'HTTP_X_GOOG_RESOURCE_ID' in request.META: resourceID = request.META['HTTP_X_GOOG_RESOURCE_ID']

    valid = checkIfGoogleCallbackIsValid( token, channelID, resourceID)

    if not valid:
        return HttpResponse('<h1>Old Channel - no update triggered</h1>')


    logger.info( "Received Google Callback with the following headers Token: %s ID %s ResID %s " % ( token, channelID, resourceID ) )
    result = syncFromGoogleToLocal()
    logger.info("Finished processing callback from GCal - New Information present: %d " %(result, ) )
    return HttpResponse('<h1>Callback successful</h1>')