from django.urls import reverse

from misago.core.utils import serialize_datetime
from misago.threads import testutils

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.assertEqual(response.status_code, 403)
        self.assertEqual(response.json(), {
            'detail': "You can't see who liked this post.",
        })

    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.assertEqual(response.status_code, 403)
        self.assertEqual(response.json(), {
            'detail': "You can't see who liked this post.",
        })

    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.post, self.user)
        other_like = testutils.like_post(self.post, self.user)

        response = self.client.get(self.api_link)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(
            response.json(), [
                {
                    'id': other_like.id,
                    'liked_on': serialize_datetime(other_like.liked_on),
                    'liker_id': self.user.id,
                    'username': self.user.username,
                    'avatars': self.user.avatars,
                    'url': self.user.get_absolute_url(),
                },
                {
                    'id': like.id,
                    'liked_on': serialize_datetime(like.liked_on),
                    'liker_id': self.user.id,
                    'username': self.user.username,
                    'avatars': self.user.avatars,
                    'url': self.user.get_absolute_url(),
                },
            ]
        )

        # api has no showstoppers for likes by deleted users
        like.liker = None
        like.save()

        other_like.liker = None
        other_like.save()

        response = self.client.get(self.api_link)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(
            response.json(), [
                {
                    'id': other_like.id,
                    'liked_on': serialize_datetime(other_like.liked_on),
                    'liker_id': None,
                    'username': self.user.username,
                    'avatars': None,
                    'url': None,
                },
                {
                    'id': like.id,
                    'liked_on': serialize_datetime(like.liked_on),
                    'liker_id': None,
                    'username': self.user.username,
                    'avatars': None,
                    'url': None,
                },
            ]
        )