from django.db.models.signals import post_save

from django.dispatch import receiver

from django.contrib.auth import get_user_model

from django.conf import settings

from django.core.urlresolvers import reverse

import requests, json, sys

def reference_created_renkan(sender, instance, created, **kwargs):

    from renkanmanager.models import Renkan

    if created and sender == Renkan and not instance.source_revision_guid:

        token_response = requests.post(

            settings.MTDC_CLIENT_CREDENTIALS_TOKEN_URL+"?grant_type=client_credentials",

            data = {},

            headers = {

                "Authorization": "Basic %s" % settings.MTDC_AUTH_CODE

            }          

        )

        if token_response.status_code == 200:

            token = json.loads(token_response.text)['access_token']

            post_data = json.dumps({

                "id": str(instance.renkan_guid),

                "idOutil": settings.RENKAN_TOOL_ID,

                "idUser": instance.creator.external_id,

                "pf": settings.ITOP_PF_CODE,

                "uai": "",

                "redirect_uri": settings.OAUTH_REDIRECT_URI,

                "title": instance.title

            })

            resource_ws_url = settings.MTDC_REFERENCE_RESOURCE_BASE_URL# + str(instance.renkan_guid)

            reference_response = requests.post(

                resource_ws_url,

                data = post_data,

                headers = {

                    "Authorization": "Bearer %s" % token,

                    "content-type": "application/json"

                }                             

            )

if not 'test' in sys.argv:

    post_save.connect(reference_created_renkan)