''' test for app action functionality '''
from unittest.mock import patch
from django.test import TestCase
from django.test.client import RequestFactory

from bookwyrm import models, views
from bookwyrm.settings import USER_AGENT

class ViewsHelpers(TestCase):
    ''' viewing and creating statuses '''
    def setUp(self):
        ''' we need basic test data and mocks '''
        self.factory = RequestFactory()
        self.local_user = models.User.objects.create_user(
            'mouse@local.com', 'mouse@mouse.com', 'mouseword',
            local=True, localname='mouse',
            remote_id='https://example.com/users/mouse',
        )
        self.work = models.Work.objects.create(title='Test Work')
        self.book = models.Edition.objects.create(
            title='Test Book',
            remote_id='https://example.com/book/1',
            parent_work=self.work
        )
        with patch('bookwyrm.models.user.set_remote_server.delay'):
            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',
            )

    def test_get_edition(self):
        ''' given an edition or a work, returns an edition '''
        self.assertEqual(
            views.helpers.get_edition(self.book.id), self.book)
        self.assertEqual(
            views.helpers.get_edition(self.work.id), self.book)

    def test_get_user_from_username(self):
        ''' works for either localname or username '''
        self.assertEqual(
            views.helpers.get_user_from_username('mouse'), self.local_user)
        self.assertEqual(
            views.helpers.get_user_from_username(
                'mouse@local.com'), self.local_user)
        with self.assertRaises(models.User.DoesNotExist):
            views.helpers.get_user_from_username('mojfse@example.com')


    def test_is_api_request(self):
        ''' should it return html or json '''
        request = self.factory.get('/path')
        request.headers = {'Accept': 'application/json'}
        self.assertTrue(views.helpers.is_api_request(request))

        request = self.factory.get('/path.json')
        request.headers = {'Accept': 'Praise'}
        self.assertTrue(views.helpers.is_api_request(request))

        request = self.factory.get('/path')
        request.headers = {'Accept': 'Praise'}
        self.assertFalse(views.helpers.is_api_request(request))


    def test_get_activity_feed(self):
        ''' loads statuses '''
        rat = models.User.objects.create_user(
            'rat', 'rat@rat.rat', 'password', local=True)

        public_status = models.Comment.objects.create(
            content='public status', book=self.book, user=self.local_user)
        direct_status = models.Status.objects.create(
            content='direct', user=self.local_user, privacy='direct')

        rat_public = models.Status.objects.create(
            content='blah blah', user=rat)
        rat_unlisted = models.Status.objects.create(
            content='blah blah', user=rat, privacy='unlisted')
        remote_status = models.Status.objects.create(
            content='blah blah', user=self.remote_user)
        followers_status = models.Status.objects.create(
            content='blah', user=rat, privacy='followers')
        rat_mention = models.Status.objects.create(
            content='blah blah blah', user=rat, privacy='followers')
        rat_mention.mention_users.set([self.local_user])

        statuses = views.helpers.get_activity_feed(
            self.local_user,
            ['public', 'unlisted', 'followers'],
            following_only=True,
            queryset=models.Comment.objects
        )
        self.assertEqual(len(statuses), 1)
        self.assertEqual(statuses[0], public_status)

        statuses = views.helpers.get_activity_feed(
            self.local_user,
            ['public', 'followers'],
            local_only=True
        )
        self.assertEqual(len(statuses), 2)
        self.assertEqual(statuses[1], public_status)
        self.assertEqual(statuses[0], rat_public)

        statuses = views.helpers.get_activity_feed(self.local_user, 'direct')
        self.assertEqual(len(statuses), 1)
        self.assertEqual(statuses[0], direct_status)

        statuses = views.helpers.get_activity_feed(
            self.local_user,
            ['public', 'followers'],
        )
        self.assertEqual(len(statuses), 3)
        self.assertEqual(statuses[2], public_status)
        self.assertEqual(statuses[1], rat_public)
        self.assertEqual(statuses[0], remote_status)

        statuses = views.helpers.get_activity_feed(
            self.local_user,
            ['public', 'unlisted', 'followers'],
            following_only=True
        )
        self.assertEqual(len(statuses), 2)
        self.assertEqual(statuses[1], public_status)
        self.assertEqual(statuses[0], rat_mention)

        rat.followers.add(self.local_user)
        statuses = views.helpers.get_activity_feed(
            self.local_user,
            ['public', 'unlisted', 'followers'],
            following_only=True
        )
        self.assertEqual(len(statuses), 5)
        self.assertEqual(statuses[4], public_status)
        self.assertEqual(statuses[3], rat_public)
        self.assertEqual(statuses[2], rat_unlisted)
        self.assertEqual(statuses[1], followers_status)
        self.assertEqual(statuses[0], rat_mention)


    def test_is_bookwyrm_request(self):
        ''' checks if a request came from a bookwyrm instance '''
        request = self.factory.get('', {'q': 'Test Book'})
        self.assertFalse(views.helpers.is_bookworm_request(request))

        request = self.factory.get(
            '', {'q': 'Test Book'},
            HTTP_USER_AGENT=\
                "http.rb/4.4.1 (Mastodon/3.3.0; +https://mastodon.social/)"
        )
        self.assertFalse(views.helpers.is_bookworm_request(request))

        request = self.factory.get(
            '', {'q': 'Test Book'}, HTTP_USER_AGENT=USER_AGENT)
        self.assertTrue(views.helpers.is_bookworm_request(request))