''' sending out activities '''
import json
import pathlib
from unittest.mock import patch

from django.test import TestCase
import responses

from bookwyrm import models, outgoing
from bookwyrm.settings import DOMAIN


class Outgoing(TestCase):
    ''' sends out activities '''
    def setUp(self):
        ''' we'll need some data '''
        with patch('bookwyrm.models.user.set_remote_server'):
            self.remote_user = models.User.objects.create_user(
                'rat', 'rat@rat.com', 'ratword',
                local=False,
                remote_id='https://example.com/users/rat',
                inbox='https://example.com/users/rat/inbox',
                outbox='https://example.com/users/rat/outbox',
            )
        self.local_user = models.User.objects.create_user(
            'mouse', 'mouse@mouse.com', 'mouseword', local=True,
            remote_id='https://example.com/users/mouse',
        )

        datafile = pathlib.Path(__file__).parent.joinpath(
            'data/ap_user.json'
        )
        self.userdata = json.loads(datafile.read_bytes())
        del self.userdata['icon']

        self.book = models.Edition.objects.create(
            title='Example Edition',
            remote_id='https://example.com/book/1',
        )
        self.shelf = models.Shelf.objects.create(
            name='Test Shelf',
            identifier='test-shelf',
            user=self.local_user
        )


    def test_handle_follow(self):
        ''' send a follow request '''
        self.assertEqual(models.UserFollowRequest.objects.count(), 0)

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_follow(self.local_user, self.remote_user)

        rel = models.UserFollowRequest.objects.get()

        self.assertEqual(rel.user_subject, self.local_user)
        self.assertEqual(rel.user_object, self.remote_user)
        self.assertEqual(rel.status, 'follow_request')


    def test_handle_unfollow(self):
        ''' send an unfollow '''
        self.remote_user.followers.add(self.local_user)
        self.assertEqual(self.remote_user.followers.count(), 1)
        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_unfollow(self.local_user, self.remote_user)

        self.assertEqual(self.remote_user.followers.count(), 0)


    def test_handle_accept(self):
        ''' accept a follow request '''
        rel = models.UserFollowRequest.objects.create(
            user_subject=self.local_user,
            user_object=self.remote_user
        )
        rel_id = rel.id

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_accept(rel)
        # request should be deleted
        self.assertEqual(
            models.UserFollowRequest.objects.filter(id=rel_id).count(), 0
        )
        # follow relationship should exist
        self.assertEqual(self.remote_user.followers.first(), self.local_user)


    def test_handle_reject(self):
        ''' reject a follow request '''
        rel = models.UserFollowRequest.objects.create(
            user_subject=self.local_user,
            user_object=self.remote_user
        )
        rel_id = rel.id

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_reject(rel)
        # request should be deleted
        self.assertEqual(
            models.UserFollowRequest.objects.filter(id=rel_id).count(), 0
        )
        # follow relationship should not exist
        self.assertEqual(
            models.UserFollows.objects.filter(id=rel_id).count(), 0
        )

    def test_existing_user(self):
        ''' simple database lookup by username '''
        user = models.User.objects.create_user(
            'mouse', 'mouse@mouse.mouse', 'mouseword', local=True)

        result = outgoing.handle_remote_webfinger('@mouse@%s' % DOMAIN)
        self.assertEqual(result, user)

        result = outgoing.handle_remote_webfinger('mouse@%s' % DOMAIN)
        self.assertEqual(result, user)


    @responses.activate
    def test_load_user(self):
        ''' find a remote user using webfinger '''
        username = 'mouse@example.com'
        wellknown = {
            "subject": "acct:mouse@example.com",
            "links": [{
                "rel": "self",
                "type": "application/activity+json",
                "href": "https://example.com/user/mouse"
            }]
        }
        responses.add(
            responses.GET,
            'https://example.com/.well-known/webfinger?resource=acct:%s' \
                    % username,
            json=wellknown,
            status=200)
        responses.add(
            responses.GET,
            'https://example.com/user/mouse',
            json=self.userdata,
            status=200)
        with patch('bookwyrm.models.user.set_remote_server.delay'):
            result = outgoing.handle_remote_webfinger('@mouse@example.com')
            self.assertIsInstance(result, models.User)
            self.assertEqual(result.username, 'mouse@example.com')


    def test_handle_shelve(self):
        ''' shelve a book '''
        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_shelve(self.local_user, self.book, self.shelf)
        # make sure the book is on the shelf
        self.assertEqual(self.shelf.books.get(), self.book)


    def test_handle_shelve_to_read(self):
        ''' special behavior for the to-read shelf '''
        shelf = models.Shelf.objects.get(identifier='to-read')

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_shelve(self.local_user, self.book, shelf)
        # make sure the book is on the shelf
        self.assertEqual(shelf.books.get(), self.book)


    def test_handle_shelve_reading(self):
        ''' special behavior for the reading shelf '''
        shelf = models.Shelf.objects.get(identifier='reading')

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_shelve(self.local_user, self.book, shelf)
        # make sure the book is on the shelf
        self.assertEqual(shelf.books.get(), self.book)


    def test_handle_shelve_read(self):
        ''' special behavior for the read shelf '''
        shelf = models.Shelf.objects.get(identifier='read')

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_shelve(self.local_user, self.book, shelf)
        # make sure the book is on the shelf
        self.assertEqual(shelf.books.get(), self.book)


    def test_handle_unshelve(self):
        ''' remove a book from a shelf '''
        self.shelf.books.add(self.book)
        self.shelf.save()
        self.assertEqual(self.shelf.books.count(), 1)
        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            outgoing.handle_unshelve(self.local_user, self.book, self.shelf)
        self.assertEqual(self.shelf.books.count(), 0)