''' test for app action functionality '''
from unittest.mock import patch

import dateutil
from django.core.exceptions import PermissionDenied
from django.contrib.auth.models import Group, Permission
from django.contrib.contenttypes.models import ContentType
from django.http.response import Http404
from django.test import TestCase
from django.test.client import RequestFactory
from django.utils import timezone

from bookwyrm import forms, models, view_actions as actions
from bookwyrm.settings import DOMAIN


#pylint: disable=too-many-public-methods
class ViewActions(TestCase):
    ''' a lot here: all handlers for receiving activitypub requests '''
    def setUp(self):
        ''' we need basic things, like users '''
        self.local_user = models.User.objects.create_user(
            'mouse', 'mouse@mouse.com', 'mouseword',
            local=True, localname='mouse')
        self.local_user.remote_id = 'https://example.com/user/mouse'
        self.local_user.save()
        self.group = Group.objects.create(name='editor')
        self.group.permissions.add(
            Permission.objects.create(
                name='edit_book',
                codename='edit_book',
                content_type=ContentType.objects.get_for_model(models.User)).id
        )
        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',
            )
        self.status = models.Status.objects.create(
            user=self.local_user,
            content='Test status',
            remote_id='https://example.com/status/1',
        )
        self.work = models.Work.objects.create(title='Test Work')
        self.book = models.Edition.objects.create(
            title='Test Book', parent_work=self.work)
        self.settings = models.SiteSettings.objects.create(id=1)
        self.factory = RequestFactory()


    def test_register(self):
        ''' create a user '''
        self.assertEqual(models.User.objects.count(), 2)
        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria-user.user_nutria',
                'password': 'mouseword',
                'email': 'aa@bb.cccc'
            })
        with patch('bookwyrm.view_actions.login'):
            response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 3)
        self.assertEqual(response.status_code, 302)
        nutria = models.User.objects.last()
        self.assertEqual(nutria.username, 'nutria-user.user_nutria@%s' % DOMAIN)
        self.assertEqual(nutria.localname, 'nutria-user.user_nutria')
        self.assertEqual(nutria.local, True)

    def test_register_trailing_space(self):
        ''' django handles this so weirdly '''
        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria ',
                'password': 'mouseword',
                'email': 'aa@bb.ccc'
            })
        with patch('bookwyrm.view_actions.login'):
            response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 3)
        self.assertEqual(response.status_code, 302)
        nutria = models.User.objects.last()
        self.assertEqual(nutria.username, 'nutria@%s' % DOMAIN)
        self.assertEqual(nutria.localname, 'nutria')
        self.assertEqual(nutria.local, True)

    def test_register_invalid_email(self):
        ''' gotta have an email '''
        self.assertEqual(models.User.objects.count(), 2)
        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria',
                'password': 'mouseword',
                'email': 'aa'
            })
        response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 2)
        self.assertEqual(response.template_name, 'login.html')

    def test_register_invalid_username(self):
        ''' gotta have an email '''
        self.assertEqual(models.User.objects.count(), 2)
        request = self.factory.post(
            'register/',
            {
                'localname': 'nut@ria',
                'password': 'mouseword',
                'email': 'aa@bb.ccc'
            })
        response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 2)
        self.assertEqual(response.template_name, 'login.html')

        request = self.factory.post(
            'register/',
            {
                'localname': 'nutr ia',
                'password': 'mouseword',
                'email': 'aa@bb.ccc'
            })
        response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 2)
        self.assertEqual(response.template_name, 'login.html')

        request = self.factory.post(
            'register/',
            {
                'localname': 'nut@ria',
                'password': 'mouseword',
                'email': 'aa@bb.ccc'
            })
        response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 2)
        self.assertEqual(response.template_name, 'login.html')


    def test_register_closed_instance(self):
        ''' you can't just register '''
        self.settings.allow_registration = False
        self.settings.save()
        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria ',
                'password': 'mouseword',
                'email': 'aa@bb.ccc'
            })
        with self.assertRaises(PermissionDenied):
            actions.register(request)

    def test_register_invite(self):
        ''' you can't just register '''
        self.settings.allow_registration = False
        self.settings.save()
        models.SiteInvite.objects.create(
            code='testcode', user=self.local_user, use_limit=1)
        self.assertEqual(models.SiteInvite.objects.get().times_used, 0)

        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria',
                'password': 'mouseword',
                'email': 'aa@bb.ccc',
                'invite_code': 'testcode'
            })
        with patch('bookwyrm.view_actions.login'):
            response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 3)
        self.assertEqual(response.status_code, 302)
        self.assertEqual(models.SiteInvite.objects.get().times_used, 1)

        # invite already used to max capacity
        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria2',
                'password': 'mouseword',
                'email': 'aa@bb.ccc',
                'invite_code': 'testcode'
            })
        with self.assertRaises(PermissionDenied):
            response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 3)

        # bad invite code
        request = self.factory.post(
            'register/',
            {
                'localname': 'nutria3',
                'password': 'mouseword',
                'email': 'aa@bb.ccc',
                'invite_code': 'dkfkdjgdfkjgkdfj'
            })
        with self.assertRaises(Http404):
            response = actions.register(request)
        self.assertEqual(models.User.objects.count(), 3)


    def test_password_reset_request(self):
        ''' send 'em an email '''
        request = self.factory.post('', {'email': 'aa@bb.ccc'})
        resp = actions.password_reset_request(request)
        self.assertEqual(resp.status_code, 302)

        request = self.factory.post(
            '', {'email': 'mouse@mouse.com'})
        with patch('bookwyrm.emailing.send_email.delay'):
            resp = actions.password_reset_request(request)
        self.assertEqual(resp.template_name, 'password_reset_request.html')

        self.assertEqual(
            models.PasswordReset.objects.get().user, self.local_user)

    def test_password_reset(self):
        ''' reset from code '''
        code = models.PasswordReset.objects.create(user=self.local_user)
        request = self.factory.post('', {
            'reset-code':  code.code,
            'password': 'hi',
            'confirm-password': 'hi'
        })
        with patch('bookwyrm.view_actions.login'):
            resp = actions.password_reset(request)
        self.assertEqual(resp.status_code, 302)
        self.assertFalse(models.PasswordReset.objects.exists())

    def test_password_reset_wrong_code(self):
        ''' reset from code '''
        models.PasswordReset.objects.create(user=self.local_user)
        request = self.factory.post('', {
            'reset-code': 'jhgdkfjgdf',
            'password': 'hi',
            'confirm-password': 'hi'
        })
        resp = actions.password_reset(request)
        self.assertEqual(resp.template_name, 'password_reset.html')
        self.assertTrue(models.PasswordReset.objects.exists())

    def test_password_reset_mismatch(self):
        ''' reset from code '''
        code = models.PasswordReset.objects.create(user=self.local_user)
        request = self.factory.post('', {
            'reset-code': code.code,
            'password': 'hi',
            'confirm-password': 'hihi'
        })
        resp = actions.password_reset(request)
        self.assertEqual(resp.template_name, 'password_reset.html')
        self.assertTrue(models.PasswordReset.objects.exists())


    def test_password_change(self):
        ''' change password '''
        password_hash = self.local_user.password
        request = self.factory.post('', {
            'password': 'hi',
            'confirm-password': 'hi'
        })
        request.user = self.local_user
        with patch('bookwyrm.view_actions.login'):
            actions.password_change(request)
        self.assertNotEqual(self.local_user.password, password_hash)

    def test_password_change_mismatch(self):
        ''' change password '''
        password_hash = self.local_user.password
        request = self.factory.post('', {
            'password': 'hi',
            'confirm-password': 'hihi'
        })
        request.user = self.local_user
        actions.password_change(request)
        self.assertEqual(self.local_user.password, password_hash)


    def test_edit_user(self):
        ''' use a form to update a user '''
        form = forms.EditUserForm(instance=self.local_user)
        form.data['name'] = 'New Name'
        request = self.factory.post('', form.data)
        request.user = self.local_user

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            actions.edit_profile(request)
        self.assertEqual(self.local_user.name, 'New Name')


    def test_edit_book(self):
        ''' lets a user edit a book '''
        self.local_user.groups.add(self.group)
        form = forms.EditionForm(instance=self.book)
        form.data['title'] = 'New Title'
        form.data['last_edited_by'] = self.local_user.id
        request = self.factory.post('', form.data)
        request.user = self.local_user
        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            actions.edit_book(request, self.book.id)
        self.book.refresh_from_db()
        self.assertEqual(self.book.title, 'New Title')


    def test_switch_edition(self):
        ''' updates user's relationships to a book '''
        work = models.Work.objects.create(title='test work')
        edition1 = models.Edition.objects.create(
            title='first ed', parent_work=work)
        edition2 = models.Edition.objects.create(
            title='second ed', parent_work=work)
        shelf = models.Shelf.objects.create(
            name='Test Shelf', user=self.local_user)
        shelf.books.add(edition1)
        models.ReadThrough.objects.create(
            user=self.local_user, book=edition1)

        self.assertEqual(models.ShelfBook.objects.get().book, edition1)
        self.assertEqual(models.ReadThrough.objects.get().book, edition1)
        request = self.factory.post('', {
            'edition': edition2.id
        })
        request.user = self.local_user
        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            actions.switch_edition(request)

        self.assertEqual(models.ShelfBook.objects.get().book, edition2)
        self.assertEqual(models.ReadThrough.objects.get().book, edition2)


    def test_edit_author(self):
        ''' edit an author '''
        author = models.Author.objects.create(name='Test Author')
        self.local_user.groups.add(self.group)
        form = forms.AuthorForm(instance=author)
        form.data['name'] = 'New Name'
        form.data['last_edited_by'] = self.local_user.id
        request = self.factory.post('', form.data)
        request.user = self.local_user
        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            actions.edit_author(request, author.id)
        author.refresh_from_db()
        self.assertEqual(author.name, 'New Name')
        self.assertEqual(author.last_edited_by, self.local_user)

    def test_edit_author_non_editor(self):
        ''' edit an author with invalid post data'''
        author = models.Author.objects.create(name='Test Author')
        form = forms.AuthorForm(instance=author)
        form.data['name'] = 'New Name'
        form.data['last_edited_by'] = self.local_user.id
        request = self.factory.post('', form.data)
        request.user = self.local_user
        with self.assertRaises(PermissionDenied):
            actions.edit_author(request, author.id)
        author.refresh_from_db()
        self.assertEqual(author.name, 'Test Author')

    def test_edit_author_invalid_form(self):
        ''' edit an author with invalid post data'''
        author = models.Author.objects.create(name='Test Author')
        self.local_user.groups.add(self.group)
        form = forms.AuthorForm(instance=author)
        form.data['name'] = ''
        form.data['last_edited_by'] = self.local_user.id
        request = self.factory.post('', form.data)
        request.user = self.local_user
        resp = actions.edit_author(request, author.id)
        author.refresh_from_db()
        self.assertEqual(author.name, 'Test Author')
        self.assertEqual(resp.template_name, 'edit_author.html')


    def test_edit_shelf_privacy(self):
        ''' set name or privacy on shelf '''
        shelf = self.local_user.shelf_set.get(identifier='to-read')
        self.assertEqual(shelf.privacy, 'public')

        request = self.factory.post(
            '', {
                'privacy': 'unlisted',
                'user': self.local_user.id,
                'name': 'To Read',
            })
        request.user = self.local_user
        actions.edit_shelf(request, shelf.id)
        shelf.refresh_from_db()

        self.assertEqual(shelf.privacy, 'unlisted')


    def test_edit_shelf_name(self):
        ''' change the name of an editable shelf '''
        shelf = models.Shelf.objects.create(
            name='Test Shelf', user=self.local_user)
        self.assertEqual(shelf.privacy, 'public')

        request = self.factory.post(
            '', {
                'privacy': 'public',
                'user': self.local_user.id,
                'name': 'cool name'
            })
        request.user = self.local_user
        actions.edit_shelf(request, shelf.id)
        shelf.refresh_from_db()

        self.assertEqual(shelf.name, 'cool name')
        self.assertEqual(shelf.identifier, 'testshelf-%d' % shelf.id)


    def test_edit_shelf_name_not_editable(self):
        ''' can't change the name of an non-editable shelf '''
        shelf = self.local_user.shelf_set.get(identifier='to-read')
        self.assertEqual(shelf.privacy, 'public')

        request = self.factory.post(
            '', {
                'privacy': 'public',
                'user': self.local_user.id,
                'name': 'cool name'
            })
        request.user = self.local_user
        actions.edit_shelf(request, shelf.id)

        self.assertEqual(shelf.name, 'To Read')


    def test_edit_readthrough(self):
        ''' adding dates to an ongoing readthrough '''
        start = timezone.make_aware(dateutil.parser.parse('2021-01-03'))
        readthrough = models.ReadThrough.objects.create(
            book=self.book, user=self.local_user, start_date=start)
        request = self.factory.post(
            '', {
                'start_date': '2017-01-01',
                'finish_date': '2018-03-07',
                'book': '',
                'id': readthrough.id,
            })
        request.user = self.local_user

        actions.edit_readthrough(request)
        readthrough.refresh_from_db()
        self.assertEqual(readthrough.start_date.year, 2017)
        self.assertEqual(readthrough.start_date.month, 1)
        self.assertEqual(readthrough.start_date.day, 1)
        self.assertEqual(readthrough.finish_date.year, 2018)
        self.assertEqual(readthrough.finish_date.month, 3)
        self.assertEqual(readthrough.finish_date.day, 7)
        self.assertEqual(readthrough.book, self.book)


    def test_delete_readthrough(self):
        ''' remove a readthrough '''
        readthrough = models.ReadThrough.objects.create(
            book=self.book, user=self.local_user)
        models.ReadThrough.objects.create(
            book=self.book, user=self.local_user)
        request = self.factory.post(
            '', {
                'id': readthrough.id,
            })
        request.user = self.local_user

        actions.delete_readthrough(request)
        self.assertFalse(
            models.ReadThrough.objects.filter(id=readthrough.id).exists())


    def test_create_readthrough(self):
        ''' adding new read dates '''
        request = self.factory.post(
            '', {
                'start_date': '2017-01-01',
                'finish_date': '2018-03-07',
                'book': self.book.id,
                'id': '',
            })
        request.user = self.local_user

        actions.create_readthrough(request)
        readthrough = models.ReadThrough.objects.get()
        self.assertEqual(readthrough.start_date.year, 2017)
        self.assertEqual(readthrough.start_date.month, 1)
        self.assertEqual(readthrough.start_date.day, 1)
        self.assertEqual(readthrough.finish_date.year, 2018)
        self.assertEqual(readthrough.finish_date.month, 3)
        self.assertEqual(readthrough.finish_date.day, 7)
        self.assertEqual(readthrough.book, self.book)
        self.assertEqual(readthrough.user, self.local_user)


    def test_tag(self):
        ''' add a tag to a book '''
        request = self.factory.post(
            '', {
                'name': 'A Tag!?',
                'book': self.book.id,
            })
        request.user = self.local_user

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            actions.tag(request)

        tag = models.Tag.objects.get()
        user_tag = models.UserTag.objects.get()
        self.assertEqual(tag.name, 'A Tag!?')
        self.assertEqual(tag.identifier, 'A+Tag%21%3F')
        self.assertEqual(user_tag.user, self.local_user)
        self.assertEqual(user_tag.book, self.book)


    def test_untag(self):
        ''' remove a tag from a book '''
        tag = models.Tag.objects.create(name='A Tag!?')
        models.UserTag.objects.create(
            user=self.local_user, book=self.book, tag=tag)
        request = self.factory.post(
            '', {
                'user': self.local_user.id,
                'book': self.book.id,
                'name': tag.name,
            })
        request.user = self.local_user

        with patch('bookwyrm.broadcast.broadcast_task.delay'):
            actions.untag(request)

        self.assertTrue(models.Tag.objects.filter(name='A Tag!?').exists())
        self.assertFalse(models.UserTag.objects.exists())