import logging
import os

from flask import Flask
from flask.ext.principal import Principal
from flask.ext.login import LoginManager
from flask.ext.mail import Mail

import features

from storage import Storage
from data import model
from data import database
from data.userfiles import Userfiles
from data.users import UserAuthentication
from util.analytics import Analytics
from util.exceptionlog import Sentry
from data.billing import Billing


OVERRIDE_CONFIG_FILENAME = 'conf/stack/config.py'


app = Flask(__name__)
logger = logging.getLogger(__name__)


if 'TEST' in os.environ:
  from test.testconfig import TestConfig
  logger.debug('Loading test config.')
  app.config.from_object(TestConfig())
else:
  from config import DefaultConfig
  logger.debug('Loading default config.')
  app.config.from_object(DefaultConfig())

  if os.path.exists(OVERRIDE_CONFIG_FILENAME):
    logger.debug('Applying config file: %s', OVERRIDE_CONFIG_FILENAME)
    app.config.from_pyfile(OVERRIDE_CONFIG_FILENAME)

features.import_features(app.config)

Principal(app, use_sessions=False)

login_manager = LoginManager(app)
mail = Mail(app)
storage = Storage(app)
userfiles = Userfiles(app)
analytics = Analytics(app)
billing = Billing(app)
sentry = Sentry(app)
authentication = UserAuthentication(app)

database.configure(app.config)
model.config.app_config = app.config
model.config.store = storage