import json

from ...backends.facebook import API_VERSION
from ...exceptions import AuthUnknownError, AuthCanceled

from .oauth import OAuth2Test


class FacebookOAuth2Test(OAuth2Test):
    backend_path = 'social_core.backends.facebook.FacebookOAuth2'
    user_data_url = 'https://graph.facebook.com/v{version}/me'.format(
        version=API_VERSION
    )
    expected_username = 'foobar'
    access_token_body = json.dumps({
        'access_token': 'foobar',
        'token_type': 'bearer'
    })
    user_data_body = json.dumps({
        'username': 'foobar',
        'first_name': 'Foo',
        'last_name': 'Bar',
        'verified': True,
        'name': 'Foo Bar',
        'gender': 'male',
        'updated_time': '2013-02-13T14:59:42+0000',
        'link': 'http://www.facebook.com/foobar',
        'id': '110011001100010'
    })

    def test_login(self):
        self.do_login()

    def test_partial_pipeline(self):
        self.do_partial_pipeline()


class FacebookOAuth2WrongUserDataTest(FacebookOAuth2Test):
    user_data_body = 'null'

    def test_login(self):
        with self.assertRaises(AuthUnknownError):
            self.do_login()

    def test_partial_pipeline(self):
        with self.assertRaises(AuthUnknownError):
            self.do_partial_pipeline()


class FacebookOAuth2AuthCancelTest(FacebookOAuth2Test):
    access_token_status = 400
    access_token_body = json.dumps({
        'error': {
            'message': "redirect_uri isn't an absolute URI. Check RFC 3986.",
            'code': 191,
            'type': 'OAuthException',
            'fbtrace_id': '123Abc'
        }
    })

    def test_login(self):
        with self.assertRaises(AuthCanceled) as cm:
            self.do_login()
        self.assertIn('error', cm.exception.response.json())

    def test_partial_pipeline(self):
        with self.assertRaises(AuthCanceled) as cm:
            self.do_partial_pipeline()
        self.assertIn('error', cm.exception.response.json())