# coding=utf-8
from django.utils.unittest import TestCase
from django.test.client import Client

import boards

from boards.models import Post, Admin, Tag
from neboard import settings

TEST_TEXT = 'test text'

NEW_THREAD_PAGE = '/'
THREAD_PAGE_ONE = '/thread/1/'
THREAD_PAGE = '/thread/'
TAG_PAGE = '/tag/'
HTTP_CODE_REDIRECT = 302
HTTP_CODE_OK = 200
HTTP_CODE_NOT_FOUND = 404


class BoardTests(TestCase):
    def _create_post(self):
        return Post.objects.create_post(title='title',
                                        text='text')

    def test_post_add(self):
        post = self._create_post()

        self.assertIsNotNone(post)
        self.assertEqual(boards.models.NO_PARENT, post.parent)

    def test_delete_post(self):
        post = self._create_post()
        post_id = post.id

        Post.objects.delete_post(post)

        self.assertFalse(Post.objects.exists(post_id))

    def test_delete_posts_by_ip(self):
        post = self._create_post()
        post_id = post.id

        Post.objects.delete_posts_by_ip('0.0.0.0')

        self.assertFalse(Post.objects.exists(post_id))

    # Authentication tests

    def _create_test_user(self):
        admin = Admin(name='test_username12313584353165',
                      password='test_userpassword135135512')

        admin.save()
        return admin

    def test_admin_login(self):
        client = Client()

        self.assertFalse('admin' in client.session)

        admin = self._create_test_user()

        response = client.post('/login',
                               {'name': admin.name, 'password': admin.password})

        # it means that login passed and user are redirected to another page
        self.assertEqual(302, response.status_code)

        self.assertTrue('admin' in client.session)
        self.assertTrue(client.session['admin'])

        admin.delete()

        wrong_name = 'sd2f1s3d21fs3d21f'
        wrong_password = 'sd2f1s3d21fs3d21fsdfsd'

        client.post('/login', {'name': wrong_name, 'password': wrong_password})
        self.assertFalse(client.session['admin'])

    def test_admin_logout(self):
        client = Client()

        self.assertFalse('admin' in client.session)

        admin = self._create_test_user()

        client.post('/login',
                    {'name': admin.name, 'password': admin.password})

        self.assertTrue(client.session['admin'])

        client.get('/logout')

        self.assertFalse(client.session['admin'])

        admin.delete()

    def test_get_thread(self):
        opening_post = self._create_post()
        op_id = opening_post.id

        for i in range(0, 2):
            Post.objects.create_post('title', 'text',
                                     parent_id=op_id)

        thread = Post.objects.get_thread(op_id)

        self.assertEqual(3, len(thread))

    def test_create_post_with_tag(self):
        tag = Tag.objects.create(name='test_tag')
        post = Post.objects.create_post(title='title', text='text', tags=[tag])
        self.assertIsNotNone(post)

    def test_thread_max_count(self):
        for i in range(settings.MAX_THREAD_COUNT + 1):
            self._create_post()

        self.assertEqual(settings.MAX_THREAD_COUNT,
                         len(Post.objects.get_threads()))

    def test_get(self):
        """Test if the get computes properly"""

        post = self._create_post()

        self.assertTrue(post.is_get())

    def test_pages(self):
        """Test that the thread list is properly split into pages"""

        for i in range(settings.MAX_THREAD_COUNT):
            self._create_post()

        all_threads = Post.objects.get_threads()

        posts_in_second_page = Post.objects.get_threads(page=1)
        first_post = posts_in_second_page[0]

        self.assertEqual(all_threads[settings.THREADS_PER_PAGE].id,
                         first_post.id)

    def test_post_validation(self):
        """Test the validation of the post form"""

        Post.objects.all().delete()

        client = Client()

        valid_tags = u'tag1 tag_2 тег_3'
        invalid_tags = u'$%_356 ---'

        response = client.post(NEW_THREAD_PAGE, {'title': 'test title',
                                                 'text': TEST_TEXT,
                                                 'tags': valid_tags})
        self.assertEqual(response.status_code, HTTP_CODE_REDIRECT,
                         msg='Posting new message failed: got code ' +
                             str(response.status_code))

        self.assertEqual(1, Post.objects.count(),
                         msg='No posts were created')

        client.post(NEW_THREAD_PAGE, {'text': TEST_TEXT,
                                      'tags': invalid_tags})
        self.assertEqual(1, Post.objects.count(), msg='The validation passed '
                                                      'where it should fail')

        response = client.post(THREAD_PAGE_ONE, {'text': TEST_TEXT,
                                             'tags': valid_tags})
        self.assertEqual(HTTP_CODE_REDIRECT, response.status_code,
                         msg=u'Posting new message failed: got code ' +
                             str(response.status_code))

        self.assertEqual(2, Post.objects.count(),
                         msg=u'No posts were created')

    def test_404(self):
        """Test receiving error 404 when opening a non-existent page"""

        Post.objects.all().delete()
        Tag.objects.all().delete()

        tag_name = u'test_tag'
        tags, = [Tag.objects.get_or_create(name=tag_name)]
        client = Client()

        Post.objects.create_post('title', TEST_TEXT, tags=tags)

        existing_post_id = Post.objects.all()[0].id
        response_existing = client.get(THREAD_PAGE + str(existing_post_id) +
                                       '/')
        self.assertEqual(HTTP_CODE_OK, response_existing.status_code,
                         u'Cannot open existing thread')

        response_not_existing = client.get(THREAD_PAGE + str(
            existing_post_id + 1) + '/')
        self.assertEqual(HTTP_CODE_NOT_FOUND,
                         response_not_existing.status_code,
                         u'Not existing thread is opened')

        response_existing = client.get(TAG_PAGE + tag_name + '/')
        self.assertEqual(HTTP_CODE_OK,
                         response_existing.status_code,
                         u'Cannot open existing tag')

        response_not_existing = client.get(TAG_PAGE + u'not_tag' + '/')
        self.assertEqual(HTTP_CODE_NOT_FOUND,
                         response_not_existing.status_code,
                         u'Not existing tag is opened')