from app import app, notification_queue
from data import model
from auth.auth_context import get_authenticated_user, get_validated_oauth_token

import json

def build_event_data(repo, extra_data={}, subpage=None):
  repo_string = '%s/%s' % (repo.namespace_user.username, repo.name)
  homepage = '%s://%s/repository/%s' % (app.config['PREFERRED_URL_SCHEME'], 
                                        app.config['SERVER_HOSTNAME'],
                                        repo_string)

  if subpage:
    if not subpage.startswith('/'):
      subpage = '/' + subpage

    homepage = homepage + subpage

  event_data = {
    'repository': repo_string,
    'namespace': repo.namespace_user.username,
    'name': repo.name,
    'docker_url': '%s/%s' % (app.config['SERVER_HOSTNAME'], repo_string),
    'homepage': homepage,
    'visibility': repo.visibility.name
  }

  event_data.update(extra_data)
  return event_data

def build_notification_data(notification, event_data, performer_data=None):
  if not performer_data:
    performer_data = {}

    oauth_token = get_validated_oauth_token()
    if oauth_token:
      performer_data['oauth_token_id'] = oauth_token.id
      performer_data['oauth_token_application_id'] = oauth_token.application.client_id
      performer_data['oauth_token_application'] = oauth_token.application.name

    performer_user = get_authenticated_user()
    if performer_user:
      performer_data['entity_id'] = performer_user.id
      performer_data['entity_name'] = performer_user.username

  return {
    'notification_uuid': notification.uuid,
    'event_data': event_data,
    'performer_data': performer_data,
  }


def spawn_notification(repo, event_name, extra_data={}, subpage=None, pathargs=[],
                       performer_data=None):
  event_data = build_event_data(repo, extra_data=extra_data, subpage=subpage)

  notifications = model.list_repo_notifications(repo.namespace_user.username, repo.name,
                                                event_name=event_name)
  for notification in list(notifications):
    notification_data = build_notification_data(notification, event_data, performer_data)
    path = [repo.namespace_user.username, repo.name, event_name] + pathargs
    notification_queue.put(path, json.dumps(notification_data))