"""

Web intefaces for MGEN.



It exposes module level make_app function for mgen.app module

"""

import os

import json

import logging



import tornado.web



import mgen.model

import mgen.error

import mgen.util



import sqlalchemy.orm.exc





log = logging.getLogger(__name__)





class BaseRequestHandler(tornado.web.RequestHandler):



    def get_current_user(self):

        '''

        Returns current auth principal (token) json 

        received from external auth provider and stored in

        a secure cookie on client

        '''

        prn = self.get_secure_cookie("mgen-auth-principal")

        if prn:

            return json.loads(prn.decode('utf-8'))

        return None

        

    def get_profile(self):

        '''Returns profile id (email) stored in secure cookie'''

        profile = self.get_secure_cookie("mgen-auth-profile")

        if profile:

            return mgen.model.ProfileStore(json.loads(profile.decode('utf-8')))

        return None

    

    @property

    def current_profile(self):

        '''Returns a Profile model of the current user'''

        if hasattr(self, '__cached_profile'):

            return getattr(self, '__cached_profile')

        self.__cached_profile = self.get_profile()

        

        log.debug('current profile: %s' % self.__cached_profile.email)

        return self.__cached_profile