"""
Tests for gvacommon code.

"""
from __future__ import absolute_import, unicode_literals
import unittest

try:
    from unittest.Mock import MagicMock
except ImportError:
    from mock import MagicMock

import django
from django.db import connection
from django.http import HttpResponseForbidden
from django.conf import settings
from django.views.generic import View

from django.contrib.auth import get_user_model
from celeryrouters import GvaRouter

if not settings.configured:
    settings.configure(
        DEBUG=True,
        ROOT_URLCONF='tests',
        TEMPLATE_DIRS=['.'],
        DATABASES={
            'default': {
                'ENGINE': 'django.db.backends.sqlite3',
                'NAME': 'test',
            }
        },
        INSTALLED_APPS=(
            'django.contrib.contenttypes',
            'django.contrib.auth',),
    )

urlpatterns = []


class GvaRouteTest(unittest.TestCase):

    def test_route_for_task_ldap(self):
        router = GvaRouter()
        route = router.route_for_task('ldap')
        self.assertEqual(
            route,
            {'exchange': 'ldap', 'exchange_type': 'direct', 'queue': 'ldap'})

    def test_route_for_task_file(self):
        router = GvaRouter()
        route = router.route_for_task('file')
        self.assertEqual(
            route,
            {'exchange': 'file', 'exchange_type': 'direct', 'queue': 'file'})

    def test_route_for_task_mysql(self):
        router = GvaRouter()
        route = router.route_for_task('mysql')
        self.assertEqual(
            route,
            {'exchange': 'mysql', 'exchange_type': 'direct', 'queue': 'mysql'})

    def test_route_for_task_pgsql(self):
        router = GvaRouter()
        route = router.route_for_task('pgsql')
        self.assertEqual(
            route,
            {'exchange': 'pgsql', 'exchange_type': 'direct', 'queue': 'pgsql'})

    def test_route_for_task_web(self):
        router = GvaRouter()
        route = router.route_for_task('web')
        self.assertEqual(
            route,
            {'exchange': 'web', 'exchange_type': 'direct', 'queue': 'web'})

    def test_route_for_task_other(self):
        router = GvaRouter()
        route = router.route_for_task('unknown')
        self.assertIsNone(route)


class StaffOrSelfLoginRequiredMixinTest(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        User = get_user_model()
        User.objects.create_superuser(
            username='admin', password='admin', email='test@example.org')
        User.objects.create_user(username='test')

    def setUp(self):
        from viewmixins import StaffOrSelfLoginRequiredMixin

        class SubjectView(StaffOrSelfLoginRequiredMixin, View):

            def get(self, request, *args, **kwargs):
                return "success"

            def get_customer_object(self):
                return get_user_model().objects.get(username='test')

        self.subject = SubjectView.as_view()

    def test_dispatch_anonymous(self):
        from django.contrib.auth.models import AnonymousUser
        request = MagicMock(method='GET')
        request.user = AnonymousUser()
        result = self.subject(request)
        self.assertIsInstance(result, HttpResponseForbidden)

    def test_dispatch_staff_user(self):
        request = MagicMock(method='GET')
        request.user = get_user_model().objects.get(username='admin')
        result = self.subject(request)
        self.assertEqual(result, "success")

    def test_dispatch_customer_user(self):
        request = MagicMock(method='GET')
        request.user = get_user_model().objects.get(username='test')
        result = self.subject(request)
        self.assertEqual(result, "success")

    def test_dispatch_other_user(self):
        request = MagicMock(method='GET')
        request.user = get_user_model().objects.create_user('other')
        result = self.subject(request)
        self.assertIsInstance(result, HttpResponseForbidden)

    def test_get_customer_object_not_implemented(self):
        from viewmixins import StaffOrSelfLoginRequiredMixin

        class IncompleteView(StaffOrSelfLoginRequiredMixin, View):
            pass

        view = IncompleteView()
        with self.assertRaises(NotImplementedError):
            view.get_customer_object()


if __name__ == '__main__':
    django.setup()
    connection.creation.create_test_db()
    unittest.main()
    connection.creation.destroy_test_db()