""" test for app action functionality """
import json
from unittest.mock import patch

from django.contrib.auth.models import AnonymousUser
from django.core.exceptions import PermissionDenied
from django.test import TestCase
from django.test.client import RequestFactory

from bookwyrm import models, views

# pylint: disable=unused-argument
class ListActionViews(TestCase):
    """tag views"""

    def setUp(self):
        """we need basic test data and mocks"""
        self.factory = RequestFactory()
        with patch("bookwyrm.suggested_users.rerank_suggestions_task.delay"), patch(
            "bookwyrm.activitystreams.populate_stream_task.delay"
        ):
            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.rat = models.User.objects.create_user(
                "rat@local.com",
                "rat@rat.com",
                "ratword",
                local=True,
                localname="rat",
                remote_id="https://example.com/users/rat",
            )

        work = models.Work.objects.create(title="Work")
        self.book = models.Edition.objects.create(
            title="Example Edition",
            remote_id="https://example.com/book/1",
            parent_work=work,
        )
        work_two = models.Work.objects.create(title="Labori")
        self.book_two = models.Edition.objects.create(
            title="Example Edition 2",
            remote_id="https://example.com/book/2",
            parent_work=work_two,
        )
        work_three = models.Work.objects.create(title="Trabajar")
        self.book_three = models.Edition.objects.create(
            title="Example Edition 3",
            remote_id="https://example.com/book/3",
            parent_work=work_three,
        )
        work_four = models.Work.objects.create(title="Travailler")
        self.book_four = models.Edition.objects.create(
            title="Example Edition 4",
            remote_id="https://example.com/book/4",
            parent_work=work_four,
        )

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            self.list = models.List.objects.create(
                name="Test List", user=self.local_user
            )
        self.anonymous_user = AnonymousUser
        self.anonymous_user.is_authenticated = False
        models.SiteSettings.objects.create()

    def test_delete_list(self):
        """delete an entire list"""
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book,
                approved=True,
                order=1,
            )
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book_two,
                approved=False,
                order=2,
            )
        request = self.factory.post("")
        request.user = self.local_user
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay") as mock:
            views.delete_list(request, self.list.id)
        activity = json.loads(mock.call_args[0][1])
        self.assertEqual(activity["type"], "Delete")
        self.assertEqual(activity["actor"], self.local_user.remote_id)
        self.assertEqual(activity["object"]["id"], self.list.remote_id)
        self.assertEqual(activity["object"]["type"], "BookList")

        self.assertEqual(mock.call_count, 1)
        self.assertFalse(models.List.objects.exists())
        self.assertFalse(models.ListItem.objects.exists())

    def test_delete_list_permission_denied(self):
        """delete an entire list"""
        request = self.factory.post("")
        request.user = self.rat
        with self.assertRaises(PermissionDenied):
            views.delete_list(request, self.list.id)

    def test_curate_approve(self):
        """approve a pending item"""
        view = views.Curate.as_view()
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            pending = models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book,
                approved=False,
                order=1,
            )

        request = self.factory.post(
            "",
            {
                "item": pending.id,
                "approved": "true",
            },
        )
        request.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay") as mock:
            view(request, self.list.id)

        self.assertEqual(mock.call_count, 2)
        activity = json.loads(mock.call_args[0][1])
        self.assertEqual(activity["type"], "Add")
        self.assertEqual(activity["actor"], self.local_user.remote_id)
        self.assertEqual(activity["target"], self.list.remote_id)

        pending.refresh_from_db()
        self.assertEqual(self.list.books.count(), 1)
        self.assertEqual(self.list.listitem_set.first(), pending)
        self.assertTrue(pending.approved)

    def test_curate_reject(self):
        """approve a pending item"""
        view = views.Curate.as_view()
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            pending = models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book,
                approved=False,
                order=1,
            )

        request = self.factory.post(
            "",
            {
                "item": pending.id,
                "approved": "false",
            },
        )
        request.user = self.local_user

        view(request, self.list.id)

        self.assertFalse(self.list.books.exists())
        self.assertFalse(models.ListItem.objects.exists())

    def test_add_book(self):
        """put a book on a list"""
        request = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay") as mock:
            views.list.add_book(request)
            self.assertEqual(mock.call_count, 1)
            activity = json.loads(mock.call_args[0][1])
            self.assertEqual(activity["type"], "Add")
            self.assertEqual(activity["actor"], self.local_user.remote_id)
            self.assertEqual(activity["target"], self.list.remote_id)

        item = self.list.listitem_set.get()
        self.assertEqual(item.book, self.book)
        self.assertEqual(item.user, self.local_user)
        self.assertTrue(item.approved)

    def test_add_two_books(self):
        """
        Putting two books on the list. The first should have an order value of
        1 and the second should have an order value of 2.
        """
        request_one = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request_one.user = self.local_user

        request_two = self.factory.post(
            "",
            {
                "book": self.book_two.id,
                "list": self.list.id,
            },
        )
        request_two.user = self.local_user
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            views.list.add_book(request_one)
            views.list.add_book(request_two)

        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book)
        self.assertEqual(items[1].book, self.book_two)
        self.assertEqual(items[0].order, 1)
        self.assertEqual(items[1].order, 2)

    def test_add_three_books_and_remove_second(self):
        """
        Put three books on a list and then remove the one in the middle. The
        ordering of the list should adjust to not have a gap.
        """
        request_one = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request_one.user = self.local_user

        request_two = self.factory.post(
            "",
            {
                "book": self.book_two.id,
                "list": self.list.id,
            },
        )
        request_two.user = self.local_user

        request_three = self.factory.post(
            "",
            {
                "book": self.book_three.id,
                "list": self.list.id,
            },
        )
        request_three.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            views.list.add_book(request_one)
            views.list.add_book(request_two)
            views.list.add_book(request_three)

        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book)
        self.assertEqual(items[1].book, self.book_two)
        self.assertEqual(items[2].book, self.book_three)
        self.assertEqual(items[0].order, 1)
        self.assertEqual(items[1].order, 2)
        self.assertEqual(items[2].order, 3)

        remove_request = self.factory.post("", {"item": items[1].id})
        remove_request.user = self.local_user
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            views.list.remove_book(remove_request, self.list.id)
        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book)
        self.assertEqual(items[1].book, self.book_three)
        self.assertEqual(items[0].order, 1)
        self.assertEqual(items[1].order, 2)

    def test_adding_book_with_a_pending_book(self):
        """
        When a list contains any pending books, the pending books should have
        be at the end of the list by order. If a book is added while a book is
        pending, its order should precede the pending books.
        """
        request = self.factory.post(
            "",
            {
                "book": self.book_three.id,
                "list": self.list.id,
            },
        )
        request.user = self.local_user
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book,
                approved=True,
                order=1,
            )
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.rat,
                book=self.book_two,
                approved=False,
                order=2,
            )
            views.list.add_book(request)

        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book)
        self.assertEqual(items[0].order, 1)
        self.assertTrue(items[0].approved)

        self.assertEqual(items[1].book, self.book_three)
        self.assertEqual(items[1].order, 2)
        self.assertTrue(items[1].approved)

        self.assertEqual(items[2].book, self.book_two)
        self.assertEqual(items[2].order, 3)
        self.assertFalse(items[2].approved)

    def test_approving_one_pending_book_from_multiple(self):
        """
        When a list contains any pending books, the pending books should have
        be at the end of the list by order. If a pending book is approved, then
        its order should be at the end of the approved books and before the
        remaining pending books.
        """
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book,
                approved=True,
                order=1,
            )
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book_two,
                approved=True,
                order=2,
            )
            models.ListItem.objects.create(
                book_list=self.list,
                user=self.rat,
                book=self.book_three,
                approved=False,
                order=3,
            )
            to_be_approved = models.ListItem.objects.create(
                book_list=self.list,
                user=self.rat,
                book=self.book_four,
                approved=False,
                order=4,
            )

        view = views.Curate.as_view()
        request = self.factory.post(
            "",
            {
                "item": to_be_approved.id,
                "approved": "true",
            },
        )
        request.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            view(request, self.list.id)

        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book)
        self.assertEqual(items[0].order, 1)
        self.assertTrue(items[0].approved)

        self.assertEqual(items[1].book, self.book_two)
        self.assertEqual(items[1].order, 2)
        self.assertTrue(items[1].approved)

        self.assertEqual(items[2].book, self.book_four)
        self.assertEqual(items[2].order, 3)
        self.assertTrue(items[2].approved)

        self.assertEqual(items[3].book, self.book_three)
        self.assertEqual(items[3].order, 4)
        self.assertFalse(items[3].approved)

    def test_add_three_books_and_move_last_to_first(self):
        """
        Put three books on the list and move the last book to the first
        position.
        """
        request_one = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request_one.user = self.local_user

        request_two = self.factory.post(
            "",
            {
                "book": self.book_two.id,
                "list": self.list.id,
            },
        )
        request_two.user = self.local_user

        request_three = self.factory.post(
            "",
            {
                "book": self.book_three.id,
                "list": self.list.id,
            },
        )
        request_three.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            views.list.add_book(request_one)
            views.list.add_book(request_two)
            views.list.add_book(request_three)

        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book)
        self.assertEqual(items[1].book, self.book_two)
        self.assertEqual(items[2].book, self.book_three)
        self.assertEqual(items[0].order, 1)
        self.assertEqual(items[1].order, 2)
        self.assertEqual(items[2].order, 3)

        set_position_request = self.factory.post("", {"position": 1})
        set_position_request.user = self.local_user
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            views.list.set_book_position(set_position_request, items[2].id)
        items = self.list.listitem_set.order_by("order").all()
        self.assertEqual(items[0].book, self.book_three)
        self.assertEqual(items[1].book, self.book)
        self.assertEqual(items[2].book, self.book_two)
        self.assertEqual(items[0].order, 1)
        self.assertEqual(items[1].order, 2)
        self.assertEqual(items[2].order, 3)

    def test_add_book_outsider(self):
        """put a book on a list"""
        self.list.curation = "open"
        self.list.save(broadcast=False)
        request = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request.user = self.rat

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay") as mock:
            views.list.add_book(request)
            self.assertEqual(mock.call_count, 1)
            activity = json.loads(mock.call_args[0][1])
            self.assertEqual(activity["type"], "Add")
            self.assertEqual(activity["actor"], self.rat.remote_id)
            self.assertEqual(activity["target"], self.list.remote_id)

        item = self.list.listitem_set.get()
        self.assertEqual(item.book, self.book)
        self.assertEqual(item.user, self.rat)
        self.assertTrue(item.approved)

    def test_add_book_pending(self):
        """put a book on a list awaiting approval"""
        self.list.curation = "curated"
        self.list.save(broadcast=False)
        request = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request.user = self.rat

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay") as mock:
            views.list.add_book(request)

        self.assertEqual(mock.call_count, 1)
        activity = json.loads(mock.call_args[0][1])

        self.assertEqual(activity["type"], "Add")
        self.assertEqual(activity["actor"], self.rat.remote_id)
        self.assertEqual(activity["target"], self.list.remote_id)

        item = self.list.listitem_set.get()
        self.assertEqual(activity["object"]["id"], item.remote_id)

        self.assertEqual(item.book, self.book)
        self.assertEqual(item.user, self.rat)
        self.assertFalse(item.approved)

    def test_add_book_self_curated(self):
        """put a book on a list automatically approved"""
        self.list.curation = "curated"
        self.list.save(broadcast=False)
        request = self.factory.post(
            "",
            {
                "book": self.book.id,
                "list": self.list.id,
            },
        )
        request.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay") as mock:
            views.list.add_book(request)
            self.assertEqual(mock.call_count, 1)
            activity = json.loads(mock.call_args[0][1])
            self.assertEqual(activity["type"], "Add")
            self.assertEqual(activity["actor"], self.local_user.remote_id)
            self.assertEqual(activity["target"], self.list.remote_id)

        item = self.list.listitem_set.get()
        self.assertEqual(item.book, self.book)
        self.assertEqual(item.user, self.local_user)
        self.assertTrue(item.approved)

    def test_remove_book(self):
        """take an item off a list"""

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            item = models.ListItem.objects.create(
                book_list=self.list,
                user=self.local_user,
                book=self.book,
                order=1,
            )
        self.assertTrue(self.list.listitem_set.exists())

        request = self.factory.post(
            "",
            {
                "item": item.id,
            },
        )
        request.user = self.local_user

        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            views.list.remove_book(request, self.list.id)
        self.assertFalse(self.list.listitem_set.exists())

    def test_remove_book_unauthorized(self):
        """take an item off a list"""
        with patch("bookwyrm.models.activitypub_mixin.broadcast_task.delay"):
            item = models.ListItem.objects.create(
                book_list=self.list, user=self.local_user, book=self.book, order=1
            )
        self.assertTrue(self.list.listitem_set.exists())
        request = self.factory.post(
            "",
            {
                "item": item.id,
            },
        )
        request.user = self.rat

        with self.assertRaises(PermissionDenied):
            views.list.remove_book(request, self.list.id)
        self.assertTrue(self.list.listitem_set.exists())