# ~*~ coding: utf-8 ~*~

from random import choice
import forgery_py

from django.utils import timezone
from django.shortcuts import reverse
from django.test import TestCase, Client, TransactionTestCase
from django.test.utils import setup_test_environment
from django.db import IntegrityError, transaction
from .models import User, UserGroup, Role, init_all_models
from django.contrib.auth.models import Permission
from django.conf import settings


def gen_username():
    return forgery_py.internet.user_name(True)


def gen_email():
    return forgery_py.internet.email_address()


def gen_name():
    return forgery_py.name.full_name()


def get_role():
    role = choice(Role.objects.all())
    return role


class UserModelTest(TransactionTestCase):
    def setUp(self):
        init_all_models()

        # 创建一个用户用于测试
        role = choice(Role.objects.all())
        user = User(name='test', username='test', email='test@email.org', role=role)
        user.save()

    def test_initial(self):
        self.assertEqual(User.objects.all().count(), 2)
        self.assertEqual(Role.objects.all().count(), 3)
        self.assertEqual(UserGroup.objects.all().count(), 1)

    @property
    def role(self):
        return choice(Role.objects.all())

    # 创建一个姓名一致的用户, 应该创建成功
    def test_user_name_duplicate(self):
        user1 = User(name='test', username=gen_username(), password_raw=gen_username(),
                     email=gen_email(), role=self.role)
        try:
            user1.save()
            user1.delete()
        except IntegrityError:
            self.assertTrue(0, 'Duplicate <name> not allowed.')

    # 创建一个用户名一致的用户, 应该创建不成功
    def test_user_username_duplicate(self):
        user2 = User(username='test', email=gen_email(), role=self.role)
        try:
            user2.save()
            self.assertTrue(0, 'Duplicate <username> allowed.')
        except IntegrityError:
            pass

    # 创建一个Email一致的用户,应该创建不成功
    def test_user_email_duplicate(self):
        user3 = User(username=gen_username(), email='test@email.org', role=self.role)
        try:
            user3.save()
            self.assertTrue(0, 'Duplicate <email> allowed.')
        except IntegrityError:
            pass

    # 用户过期测试
    def test_user_was_expired(self):
        date = timezone.now() - timezone.timedelta(days=1)
        user = User(name=gen_name(), username=gen_username(),
                    email=gen_email(), role=self.role, date_expired=date)

        self.assertTrue(user.is_expired())

    # 测试用户默认会输入All用户组
    def test_user_with_default_group(self):
        role = choice(Role.objects.all())
        user = User(username=gen_username(), email=gen_email(), role=role)
        user.save()

        self.assertEqual(user.groups.count(), 1)
        self.assertEqual(user.groups.first().name, 'Default')

    def test_user_password_authenticated(self):
        password = gen_username() * 3
        user = User(username=gen_username(), password_raw=password, role=self.role)
        user.save()
        self.assertTrue(user.check_password(password))
        self.assertFalse(user.check_password(password*2))

    def tearDown(self):
        User.objects.all().delete()
        UserGroup.objects.all().delete()
        Role.objects.all().delete()


class RoleModelTestCase(TransactionTestCase):
    def setUp(self):
        Role.objects.all().delete()
        Role.initial()

    def test_role_initial(self):
        self.assertEqual(Role.objects.all().count(), 3)

    def test_create_new_role(self):
        role = Role(name=gen_name(), comment=gen_name()*3)
        role.save()
        role.permissions = Permission.objects.all()
        role.save()

        self.assertEqual(Role.objects.count(), 4)
        role = Role.objects.last()
        self.assertEqual(role.permissions.all().count(), Permission.objects.all().count())


class UserGroupModelTestCase(TransactionTestCase):
    pass


class UserListViewTests(TransactionTestCase):
    def setUp(self):
        init_all_models()

    def test_a_new_user_in_list(self):
        username = gen_username()
        user = User(username=username, email=gen_email(), role=get_role())
        user.save()
        response = self.client.get(reverse('users:user-list'))

        self.assertContains(response, username)

    def test_list_view_with_admin_user(self):
        response = self.client.get(reverse('users:user-list'))
        self.assertEqual(response.status_code, 200)
        self.assertContains(response, 'Admin')
        self.assertEqual(response.context['user_list'].count(), User.objects.all().count())

    def test_pagination(self):
        settings.CONFIG.DISPLAY_PER_PAGE = 10
        User.generate_fake(count=20)
        response = self.client.get(reverse('users:user-list'))
        self.assertEqual(response.context['is_paginated'], True)


class UserAddTests(TestCase):
    def setUp(self):
        init_all_models()

    def test_add_a_new_user(self):
        username = gen_username()
        data = {
            'username': username,
            'comment': '',
            'name': gen_name(),
            'email': gen_email(),
            'groups': [UserGroup.objects.first().id, ],
            'role': get_role().id,
            'date_expired': '2086-08-06 19:12:22',
        }

        response = self.client.post(reverse('users:user-add'), data)
        self.assertEqual(response.status_code, 302)
        self.assertEqual(response['location'], reverse('users:user-list'))

        response = self.client.get(reverse('users:user-list'))
        self.assertContains(response, username)