from django.core.urlresolvers import reverse

from .. import testutils
from ..serializers import PostLikeSerializer
from .test_threads_api import ThreadsApiTestCase


class ThreadPostLikesApiTestCase(ThreadsApiTestCase):
    def setUp(self):
        super(ThreadPostLikesApiTestCase, self).setUp()

        self.post = testutils.reply_thread(self.thread, poster=self.user)

        self.api_link = reverse('misago:api:thread-post-likes', kwargs={
            'thread_pk': self.thread.pk,
            'pk': self.post.pk
        })

    def test_no_permission(self):
        """api errors if user has no permission to see likes"""
        self.override_acl({
            'can_see_posts_likes': 0
        })

        response = self.client.get(self.api_link)
        self.assertContains(response, "You can't see who liked this post.", status_code=403)

    def test_no_permission_to_list(self):
        """api errors if user has no permission to see likes, but can see likes count"""
        self.override_acl({
            'can_see_posts_likes': 1
        })

        response = self.client.get(self.api_link)
        self.assertContains(response, "You can't see who liked this post.", status_code=403)

    def test_no_likes(self):
        """api returns empty list if post has no likes"""
        response = self.client.get(self.api_link)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(), [])

    def test_likes(self):
        """api returns list of likes"""
        like = testutils.like_post(self.user, self.post)
        other_like = testutils.like_post(self.user, self.post)

        other_like.user = None
        other_like.save()

        response = self.client.get(self.api_link)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(), [
            PostLikeSerializer(other_like.__dict__).data,
            PostLikeSerializer(like.__dict__).data,
        ])