import json
from datetime import timedelta

from django.contrib.auth import get_user_model

from misago.acl.testutils import override_acl
from misago.categories.models import Category
from misago.conf import settings
from misago.core import threadstore
from misago.core.cache import cache
from misago.threads.models import Post, Thread
from misago.threads.testutils import post_thread

from ..activepostersranking import build_active_posters_ranking
from ..models import BAN_USERNAME, Ban, Rank
from ..testutils import AuthenticatedUserTestCase


class ActivePostersListTests(AuthenticatedUserTestCase):
    """
    tests for active posters list (GET /users/?list=active)
    """
    def setUp(self):
        super(ActivePostersListTests, self).setUp()
        self.link = '/api/users/?list=active'

        cache.clear()
        threadstore.clear()

        self.category = Category.objects.all_categories()[:1][0]
        self.category.labels = []

    def test_empty_list(self):
        """empty list is served"""
        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 200)
        self.assertNotIn(self.user.username, response.content)

        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 200)
        self.assertNotIn(self.user.username, response.content)

    def test_filled_list(self):
        """filled list is served"""
        post_thread(self.category, poster=self.user)
        self.user.posts = 1
        self.user.save()

        build_active_posters_ranking()

        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 200)
        self.assertIn(self.user.username, response.content)
        self.assertIn('"is_online":true', response.content)
        self.assertIn('"is_offline":false', response.content)

        self.logout_user()
        build_active_posters_ranking()

        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 200)
        self.assertIn(self.user.username, response.content)
        self.assertIn('"is_online":false', response.content)
        self.assertIn('"is_offline":true', response.content)


class FollowersListTests(AuthenticatedUserTestCase):
    """
    tests for generic list (GET /users/) filtered by followers
    """
    def setUp(self):
        super(FollowersListTests, self).setUp()
        self.link = '/api/users/?&followers=%s'

    def test_nonexistent_user(self):
        """list for non-existing user returns 404"""
        response = self.client.get(self.link % 31242)
        self.assertEqual(response.status_code, 404)

    def test_empty_list(self):
        """user without followers returns 200"""
        response = self.client.get(self.link % self.user.pk)
        self.assertEqual(response.status_code, 200)

    def test_filled_list(self):
        """user with followers returns 200"""
        User = get_user_model()
        test_follower = User.objects.create_user(
            "TestFollower", "test@follower.com", self.USER_PASSWORD)
        self.user.followed_by.add(test_follower)

        response = self.client.get(self.link % self.user.pk)
        self.assertEqual(response.status_code, 200)
        self.assertIn(test_follower.username, response.content)


class FollowsListTests(AuthenticatedUserTestCase):
    """
    tests for generic list (GET /users/) filtered by follows
    """
    def setUp(self):
        super(FollowsListTests, self).setUp()
        self.link = '/api/users/?&follows=%s'

    def test_nonexistent_user(self):
        """list for non-existing user returns 404"""
        response = self.client.get(self.link % 1321)
        self.assertEqual(response.status_code, 404)

    def test_empty_list(self):
        """user without follows returns 200"""
        response = self.client.get(self.link % self.user.pk)
        self.assertEqual(response.status_code, 200)

    def test_filled_list(self):
        """user with follows returns 200"""
        User = get_user_model()
        test_follower = User.objects.create_user(
            "TestFollower", "test@follower.com", self.USER_PASSWORD)
        self.user.follows.add(test_follower)

        response = self.client.get(self.link % self.user.pk)
        self.assertEqual(response.status_code, 200)
        self.assertIn(test_follower.username, response.content)


class RankListTests(AuthenticatedUserTestCase):
    """
    tests for generic list (GET /users/) filtered by rank
    """
    def setUp(self):
        super(RankListTests, self).setUp()
        self.link = '/api/users/?rank=%s'

    def test_nonexistent_rank(self):
        """list for non-existing rank returns 404"""
        response = self.client.get(self.link % 1421)
        self.assertEqual(response.status_code, 404)

    def test_empty_list(self):
        """tab rank without members returns 200"""
        test_rank = Rank.objects.create(
            name="Test rank",
            slug="test-rank",
            is_tab=True
        )

        response = self.client.get(self.link % test_rank.pk)
        self.assertEqual(response.status_code, 200)

    def test_disabled_list(self):
        """non-tab rank returns 404"""
        self.user.rank.is_tab = False
        self.user.rank.save()

        response = self.client.get(self.link % self.user.rank.pk)
        self.assertEqual(response.status_code, 404)

    def test_filled_list(self):
        """tab rank with members return 200"""
        self.user.rank.is_tab = True
        self.user.rank.save()

        response = self.client.get(self.link % self.user.rank.pk)
        self.assertEqual(response.status_code, 200)
        self.assertIn(self.user.username, response.content)


class SearchNamesListTests(AuthenticatedUserTestCase):
    """
    tests for generic list (GET /users/) filtered by username
    """
    def setUp(self):
        super(SearchNamesListTests, self).setUp()
        self.link = '/api/users/?&name='

    def test_empty_list(self):
        """empty list returns 200"""
        response = self.client.get(self.link + 'this-user-is-fake')
        self.assertEqual(response.status_code, 200)

    def test_filled_list(self):
        """filled list returns 200"""
        response = self.client.get(self.link + self.user.slug)
        self.assertEqual(response.status_code, 200)
        self.assertIn(self.user.username, response.content)


class UserCategoriesOptionsTests(AuthenticatedUserTestCase):
    """
    tests for user forum options RPC (POST to /api/users/1/forum-options/)
    """
    def setUp(self):
        super(UserCategoriesOptionsTests, self).setUp()
        self.link = '/api/users/%s/forum-options/' % self.user.pk

    def test_empty_request(self):
        """empty request is handled"""
        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 400)

        fields = (
            'limits_private_thread_invites_to',
            'subscribe_to_started_threads',
            'subscribe_to_replied_threads'
        )

        for field in fields:
            self.assertIn('"%s"' % field, response.content)

    def test_change_forum_options(self):
        """forum options are changed"""
        response = self.client.post(self.link, data={
            'limits_private_thread_invites_to': 1,
            'subscribe_to_started_threads': 2,
            'subscribe_to_replied_threads': 1
        })
        self.assertEqual(response.status_code, 200)

        self.reload_user();

        self.assertFalse(self.user.is_hiding_presence)
        self.assertEqual(self.user.limits_private_thread_invites_to, 1)
        self.assertEqual(self.user.subscribe_to_started_threads, 2)
        self.assertEqual(self.user.subscribe_to_replied_threads, 1)


class UserFollowTests(AuthenticatedUserTestCase):
    """
    tests for user follow RPC (POST to /api/users/1/follow/)
    """
    def setUp(self):
        super(UserFollowTests, self).setUp()

        User = get_user_model()
        self.other_user = User.objects.create_user(
            "OtherUser", "other@user.com", "pass123")

        self.link = '/api/users/%s/follow/' % self.other_user.pk

    def test_follow_unauthenticated(self):
        """you have to sign in to follow users"""
        self.logout_user()

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("action is not available to guests", response.content)

    def test_follow_myself(self):
        """you can't follow yourself"""
        response = self.client.post('/api/users/%s/follow/' % self.user.pk)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't add yourself to followed", response.content)

    def test_cant_follow(self):
        """no permission to follow users"""
        override_acl(self.user, {
            'can_follow_users': 0,
        })

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't follow other users", response.content)

    def test_follow(self):
        """follow and unfollow other user"""
        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 200)

        User = get_user_model()

        user = User.objects.get(pk=self.user.pk)
        self.assertEqual(user.followers, 0)
        self.assertEqual(user.following, 1)
        self.assertEqual(user.follows.count(), 1)
        self.assertEqual(user.followed_by.count(), 0)

        followed = User.objects.get(pk=self.other_user.pk)
        self.assertEqual(followed.followers, 1)
        self.assertEqual(followed.following, 0)
        self.assertEqual(followed.follows.count(), 0)
        self.assertEqual(followed.followed_by.count(), 1)

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 200)

        user = User.objects.get(pk=self.user.pk)
        self.assertEqual(user.followers, 0)
        self.assertEqual(user.following, 0)
        self.assertEqual(user.follows.count(), 0)
        self.assertEqual(user.followed_by.count(), 0)

        followed = User.objects.get(pk=self.other_user.pk)
        self.assertEqual(followed.followers, 0)
        self.assertEqual(followed.following, 0)
        self.assertEqual(followed.follows.count(), 0)
        self.assertEqual(followed.followed_by.count(), 0)


class UserBanTests(AuthenticatedUserTestCase):
    """
    tests for ban endpoint (GET to /api/users/1/ban/)
    """
    def setUp(self):
        super(UserBanTests, self).setUp()

        User = get_user_model()
        self.other_user = User.objects.create_user(
            "OtherUser", "other@user.com", "pass123")

        self.link = '/api/users/%s/ban/' % self.other_user.pk

    def test_no_permission(self):
        """user has no permission to access ban"""
        override_acl(self.user, {
            'can_see_ban_details': 0
        })

        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't see users bans details", response.content)

    def test_no_ban(self):
        """api returns empty json"""
        override_acl(self.user, {
            'can_see_ban_details': 1
        })

        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.content, '{}')

    def test_ban_details(self):
        """api returns ban json"""
        override_acl(self.user, {
            'can_see_ban_details': 1
        })

        Ban.objects.create(check_type=BAN_USERNAME,
                           banned_value=self.other_user.username,
                           user_message='Nope!')

        response = self.client.get(self.link)
        self.assertEqual(response.status_code, 200)

        ban_json = json.loads(response.content)
        self.assertEqual(ban_json['user_message']['plain'], 'Nope!')
        self.assertEqual(ban_json['user_message']['html'], '<p>Nope!</p>')


class UserDeleteTests(AuthenticatedUserTestCase):
    """
    tests for user delete RPC (POST to /api/users/1/delete/)
    """
    def setUp(self):
        super(UserDeleteTests, self).setUp()

        User = get_user_model()
        self.other_user = User.objects.create_user(
            "OtherUser", "other@user.com", "pass123")

        self.link = '/api/users/%s/delete/' % self.other_user.pk

        self.threads = Thread.objects.count()
        self.posts = Post.objects.count()

        self.category = Category.objects.all_categories()[:1][0]

        post_thread(self.category, poster=self.other_user)
        self.other_user.posts = 1
        self.other_user.threads = 1
        self.other_user.save()

    def test_delete_no_permission(self):
        """raises 403 error when no permission to delete"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 0,
            'can_delete_users_with_less_posts_than': 0,
        })

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete users", response.content)

    def test_delete_too_many_posts(self):
        """raises 403 error when user has too many posts"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 0,
            'can_delete_users_with_less_posts_than': 5,
        })

        self.other_user.posts = 6
        self.other_user.save()

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete users", response.content)

    def test_delete_too_many_posts(self):
        """raises 403 error when user has too many posts"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 0,
            'can_delete_users_with_less_posts_than': 5,
        })

        self.other_user.posts = 6
        self.other_user.save()

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete users", response.content)
        self.assertIn("made more than 5 posts", response.content)

    def test_delete_too_old_member(self):
        """raises 403 error when user is too old"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 5,
            'can_delete_users_with_less_posts_than': 0,
        })

        self.other_user.joined_on -= timedelta(days=6)
        self.other_user.save()

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete users", response.content)
        self.assertIn("members for more than 5 days", response.content)

    def test_delete_self(self):
        """raises 403 error when attempting to delete oneself"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 10,
            'can_delete_users_with_less_posts_than': 10,
        })

        response = self.client.post('/api/users/%s/delete/' % self.user.pk)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete yourself", response.content)

    def test_delete_admin(self):
        """raises 403 error when attempting to delete admin"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 10,
            'can_delete_users_with_less_posts_than': 10,
        })

        self.other_user.is_staff = True
        self.other_user.save()

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete administrators", response.content)

    def test_delete_superadmin(self):
        """raises 403 error when attempting to delete superadmin"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 10,
            'can_delete_users_with_less_posts_than': 10,
        })

        self.other_user.is_superuser = True
        self.other_user.save()

        response = self.client.post(self.link)
        self.assertEqual(response.status_code, 403)
        self.assertIn("can't delete administrators", response.content)

    def test_delete_with_content(self):
        """returns 200 and deletes user with content"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 10,
            'can_delete_users_with_less_posts_than': 10,
        })

        response = self.client.post(self.link, json.dumps({
            'with_content': True
        }), content_type="application/json")
        self.assertEqual(response.status_code, 200)

        User = get_user_model()
        with self.assertRaises(User.DoesNotExist):
            User.objects.get(pk=self.other_user.pk)

        self.assertEqual(Thread.objects.count(), self.threads)
        self.assertEqual(Post.objects.count(), self.posts)

    def test_delete_without_content(self):
        """returns 200 and deletes user without content"""
        override_acl(self.user, {
            'can_delete_users_newer_than': 10,
            'can_delete_users_with_less_posts_than': 10,
        })

        response = self.client.post(self.link, json.dumps({
            'with_content': False
        }), content_type="application/json")
        self.assertEqual(response.status_code, 200)

        User = get_user_model()
        with self.assertRaises(User.DoesNotExist):
            User.objects.get(pk=self.other_user.pk)

        self.assertEqual(Thread.objects.count(), self.threads + 1)
        self.assertEqual(Post.objects.count(), self.posts + 2)