import json

from django.contrib import admin
from django.contrib.admin.sites import site
from django.contrib.admin.utils import flatten_fieldsets
from django.contrib.auth import get_user_model
from django.contrib.auth.models import Permission
from django.contrib.sites.models import Site
from django.http import Http404, HttpResponseBadRequest, HttpResponseNotFound
from django.test.utils import override_settings
from django.utils.encoding import force_str, smart_str
from djangocms_text_ckeditor.cms_plugins import TextPlugin
from djangocms_text_ckeditor.models import Text

from cms import api
from cms.admin.forms import ChangePageForm
from cms.api import add_plugin, create_page, create_page_content
from cms.constants import TEMPLATE_INHERITANCE_MAGIC
from cms.models import PageContent, PageUrl, StaticPlaceholder, UserSettings
from cms.models.pagemodel import Page
from cms.models.permissionmodels import GlobalPagePermission, PagePermission
from cms.models.placeholdermodel import Placeholder
from cms.test_utils import testcases as base
from cms.test_utils.testcases import (
    URL_CMS_PAGE_DELETE,
    URL_CMS_PAGE_PUBLISHED,
    CMSTestCase,
)
from cms.utils.compat import DJANGO_4_2, DJANGO_5_1
from cms.utils.conf import get_cms_setting
from cms.utils.i18n import get_language_list
from cms.utils.urlutils import admin_reverse


class AdminTestsBase(CMSTestCase):
    @property
    def page_admin_class(self):
        return site._registry[Page]

    @property
    def pagecontent_admin_class(self):
        return site._registry[PageContent]

    def _get_guys(self, admin_only=False, use_global_permissions=True):
        admin_user = self.get_superuser()

        if admin_only:
            return admin_user
        staff_user = self._get_staff_user(use_global_permissions)
        return admin_user, staff_user

    def _get_staff_user(self, use_global_permissions=True):
        USERNAME = "test"

        if get_user_model().USERNAME_FIELD == "email":
            normal_guy = get_user_model().objects.create_user(USERNAME, "test@test.com", "test@test.com")
        else:
            normal_guy = get_user_model().objects.create_user(USERNAME, "test@test.com", USERNAME)

        normal_guy.is_staff = True
        normal_guy.is_active = True
        perms = Permission.objects.filter(
            codename__in=["change_page", "change_title", "add_page", "add_title", "delete_page", "delete_title"]
        )
        normal_guy.save()
        normal_guy.user_permissions.set(perms)
        if use_global_permissions:
            gpp = GlobalPagePermission.objects.create(
                user=normal_guy,
                can_change=True,
                can_delete=True,
                can_publish=True,
                can_change_advanced_settings=False,
                can_change_permissions=False,
                can_move_page=True,
            )
            gpp.sites.set(Site.objects.all())
        return normal_guy


class AdminTestCase(AdminTestsBase):
    def test_extension_not_in_admin(self):
        admin_user, staff = self._get_guys()
        with self.login_user_context(admin_user):
            request = self.get_request(self.get_pages_admin_list_uri("en"))
            response = site.index(request)
            self.assertNotContains(response, "/mytitleextension/")
            self.assertNotContains(response, "/mypageextension/")

    @override_settings(CMS_PERMISSION=False)
    def test_2apphooks_with_same_namespace(self):
        PAGE1 = "Test Page"
        PAGE2 = "Test page 2"
        APPLICATION_URLS = "project.sampleapp.urls"

        admin_user, normal_guy = self._get_guys()

        current_site = Site.objects.get(pk=1)

        # The admin creates the page
        page = create_page(PAGE1, "nav_playground.html", "en", site=current_site, created_by=admin_user)
        page2 = create_page(PAGE2, "nav_playground.html", "en", site=current_site, created_by=admin_user)

        page.application_urls = APPLICATION_URLS
        page.application_namespace = "space1"
        page.save()
        page2.application_urls = APPLICATION_URLS
        page2.save()

        # The admin edits the page (change the page name for ex.)
        page_data = {
            "title": PAGE2,
            "slug": page2.get_slug("en"),
            "template": page2.template,
            "application_urls": "SampleApp",
            "application_namespace": "space1",
        }

        with self.login_user_context(admin_user):
            resp = self.client.post(base.URL_CMS_PAGE_ADVANCED_CHANGE % page.pk, page_data)
            self.assertEqual(resp.status_code, 302)
            self.assertEqual(Page.objects.filter(application_namespace="space1").count(), 1)
            resp = self.client.post(base.URL_CMS_PAGE_ADVANCED_CHANGE % page2.pk, page_data)
            self.assertEqual(resp.status_code, 200)
            page_data["application_namespace"] = "space2"
            resp = self.client.post(base.URL_CMS_PAGE_ADVANCED_CHANGE % page2.pk, page_data)
            self.assertEqual(resp.status_code, 302)

    def test_delete(self):
        admin_user = self.get_superuser()
        create_page("home", "nav_playground.html", "en", created_by=admin_user)
        page = create_page("delete-page", "nav_playground.html", "en", created_by=admin_user)
        create_page("child-page", "nav_playground.html", "en", created_by=admin_user, parent=page)
        body = page.get_placeholders("en").get(slot="body")
        add_plugin(body, "TextPlugin", "en", body="text")
        with self.login_user_context(admin_user):
            data = {"post": "yes"}
            response = self.client.post(URL_CMS_PAGE_DELETE % page.pk, data, follow=True)
            self.assertRedirects(response, self.get_pages_admin_list_uri("en"))

    def test_delete_diff_language(self):
        admin_user = self.get_superuser()
        create_page("home", "nav_playground.html", "en", created_by=admin_user)
        page = create_page("delete-page", "nav_playground.html", "en", created_by=admin_user)
        create_page("child-page", "nav_playground.html", "de", created_by=admin_user, parent=page)
        body = page.get_placeholders("en").get(slot="body")
        add_plugin(body, "TextPlugin", "en", body="text")
        with self.login_user_context(admin_user):
            data = {"post": "yes"}
            response = self.client.post(URL_CMS_PAGE_DELETE % page.pk, data, follow=True)
            # follow=True, since page changelist redirects to page content changelist
            self.assertRedirects(response, self.get_pages_admin_list_uri("en"))

    def test_search_fields(self):
        superuser = self.get_superuser()
        from django.contrib.admin import site

        with self.login_user_context(superuser):
            for model, admin_instance in site._registry.items():
                if model._meta.app_label != "cms":
                    continue
                if not admin_instance.search_fields:
                    continue
                url = admin_reverse("cms_%s_changelist" % model._meta.model_name)
                response = self.client.get("%s?q=1" % url, follow=True)  # Page redirects to PageContent
                errmsg = response.content
                self.assertEqual(response.status_code, 200, errmsg)

    def test_pagetree_filtered(self):
        superuser = self.get_superuser()
        create_page("root-page", "nav_playground.html", "en", created_by=superuser)
        with self.login_user_context(superuser):
            url = admin_reverse("cms_pagecontent_changelist")
            response = self.client.get("%s?template__exact=nav_playground.html" % url)
            errmsg = response.content
            self.assertEqual(response.status_code, 200, errmsg)

    def test_create_translation_copies_template(self):
        admin_user = self.get_superuser()
        page = create_page("create-translation", "col_two.html", "de", created_by=admin_user)
        with self.login_user_context(admin_user):
            response = self.client.post(
                self.get_page_add_uri("en", page),
                data={"title": "create-translation-en", "slug": "create-translation-en", "cms_page": page.pk},
            )
            self.assertRedirects(response, self.get_pages_admin_list_uri("en"))
            self.assertEqual(page.get_content_obj("en").template, "col_two.html")

    def test_create_translation_copies_template_on_default_page_language_update(self):
        admin_user = self.get_superuser()
        page = create_page("create-translation", "nav_playground.html", "en", created_by=admin_user)
        with self.login_user_context(admin_user):
            data = {"title": "test page 2", "slug": "page-test-2", "template": "col_two.html"}
            self.client.post(
                self.get_page_change_uri("en", page),
                data=data,
            )
            response = self.client.post(
                self.get_page_add_uri("de", page),
                data={"title": "create-translation-de", "slug": "create-translation-de", "cms_page": page.pk},
            )
            self.assertRedirects(response, self.get_pages_admin_list_uri("de"))
            self.assertEqual(page.get_content_obj("de").template, "col_two.html")

    def test_create_translation_copies_template_with_inheritance(self):
        """
        Test that template inheritance flag is properly copied when creating translations
        """
        admin_user = self.get_superuser()
        page = create_page("inherit-template", "nav_playground.html", "en", created_by=admin_user)

        with self.login_user_context(admin_user):
            data = {"title": "test page", "slug": "test-page", "template": TEMPLATE_INHERITANCE_MAGIC}
            self.client.post(
                self.get_page_change_uri("en", page),
                data=data,
            )

            response = self.client.post(
                self.get_page_add_uri("de", page),
                data={"title": "inherit-de", "slug": "inherit-de", "cms_page": page.pk},
            )
            self.assertRedirects(response, self.get_pages_admin_list_uri("de"))
            self.assertEqual(page.get_content_obj("de").template, TEMPLATE_INHERITANCE_MAGIC)

    def test_create_translation_always_copies_template_from_default_language_regardless_of_amount_of_languages(self):
        admin_user = self.get_superuser()
        # Create a page in default language ("fr")
        page = create_page("create-translation", "nav_playground.html", "fr", created_by=admin_user)
        with self.login_user_context(admin_user):
            data = {
                "title": "create-translation-de",
                "slug": "create-translation-de",
                "cms_page": page.pk,
                "template": "col_two.html",
            }
            response = self.client.post(
                self.get_page_add_uri("de", page),
                data=data,
            )
            data = {"title": "create-translation-en", "slug": "create-translation-en", "cms_page": page.pk}
            response = self.client.post(
                self.get_page_add_uri("en", page),
                data=data,
            )
            self.assertRedirects(response, self.get_pages_admin_list_uri("en"))
            self.assertEqual(page.get_content_obj("en").template, "nav_playground.html")

    def test_delete_translation(self):
        admin_user = self.get_superuser()
        page = create_page("delete-page-translation", "nav_playground.html", "en", created_by=admin_user)
        create_page_content("de", "delete-page-translation-2", page, slug="delete-page-translation-2")
        create_page_content("es-mx", "delete-page-translation-es", page, slug="delete-page-translation-es")
        data = {"post": "yes"}
        with self.login_user_context(admin_user):
            response = self.client.get(self.get_page_delete_translation_uri("de", page))
            self.assertEqual(response.status_code, 200)
            response = self.client.post(self.get_page_delete_translation_uri("de", page), data=data)
            self.assertRedirects(response, self.get_pages_admin_list_uri("de"))
            response = self.client.get(self.get_page_delete_translation_uri("es-mx", page))
            self.assertEqual(response.status_code, 200)
            self.assertContains(
                response, '<p>Are you sure you want to delete the page content "delete-page-translation-es (es-mx)"?'
            )
            response = self.client.post(self.get_page_delete_translation_uri("es-mx", page), data=data)
            self.assertRedirects(response, self.get_pages_admin_list_uri("es-mx"))

        self.assertTrue(PageContent.objects.filter(page=page, language="en").exists())
        self.assertFalse(PageContent.objects.filter(page=page, language="de").exists())
        self.assertFalse(PageContent.objects.filter(page=page, language="es-mx").exists())
        self.assertFalse(PageUrl.objects.filter(page=page, language="de").exists())
        self.assertFalse(PageUrl.objects.filter(page=page, language="es-mx").exists())

    def test_change_template(self):
        template = get_cms_setting("TEMPLATES")[0][0]
        admin_user, staff = (self.get_superuser(), self.get_staff_user_with_no_permissions())

        with self.login_user_context(admin_user):
            response = self.client.post(self.get_admin_url(PageContent, "change_template", 1), {"template": template})
            self.assertEqual(response.status_code, 404)

        with self.login_user_context(staff):
            response = self.client.post(self.get_admin_url(PageContent, "change_template", 1), {"template": template})
            self.assertEqual(response.status_code, 403)

        page = create_page("test-page", template, "en")
        endpoint = self.get_page_change_template_uri("en", page)

        with self.login_user_context(staff):
            response = self.client.post(endpoint, {"template": template})
            self.assertEqual(response.status_code, 403)

        with self.login_user_context(admin_user):
            response = self.client.post(endpoint, {"template": "doesntexist"})
            self.assertEqual(response.status_code, 400)
            response = self.client.post(endpoint, {"template": template})
            self.assertEqual(response.status_code, 200)

    def test_changelist_items(self):
        admin_user = self.get_superuser()
        first_level_page = create_page("level1", "nav_playground.html", "en")
        second_level_page_top = create_page(
            "level21", "nav_playground.html", "en", created_by=admin_user, parent=first_level_page
        )
        first_level_page.refresh_from_db()
        second_level_page_bottom = create_page(
            "level22", "nav_playground.html", "en", created_by=admin_user, parent=first_level_page
        )
        third_level_page = create_page(
            "level3", "nav_playground.html", "en", created_by=admin_user, parent=second_level_page_top
        )
        self.assertEqual(Page.objects.all().count(), 4)

        with self.login_user_context(admin_user):
            response = self.client.get(self.get_pages_admin_list_uri("en"))
            cms_page_nodes = response.context_data["tree"]["items"]
            self.assertEqual(cms_page_nodes[0], first_level_page)
            self.assertEqual(cms_page_nodes[1], second_level_page_top)
            self.assertEqual(cms_page_nodes[2], third_level_page)
            self.assertEqual(cms_page_nodes[3], second_level_page_bottom)

    def test_changelist_get_results(self):
        admin_user = self.get_superuser()
        first_level_page = create_page("level1", "nav_playground.html", "en")
        second_level_page_top = create_page(
            "level21", "nav_playground.html", "en", created_by=admin_user, parent=first_level_page
        )
        create_page(
            "level22", "nav_playground.html", "en", created_by=admin_user, parent=self.reload(first_level_page)
        )
        create_page("level3", "nav_playground.html", "en", created_by=admin_user, parent=second_level_page_top)
        create_page(
            "level23", "nav_playground.html", "en", created_by=admin_user, parent=self.reload(first_level_page)
        )
        self.assertEqual(Page.objects.all().count(), 5)
        endpoint = self.get_pages_admin_list_uri()

        with self.login_user_context(admin_user):
            response = self.client.get(endpoint)
            self.assertEqual(response.context_data["tree"]["items"].count(), 5)

        with self.login_user_context(admin_user):
            response = self.client.get(endpoint + "&q=level23")
            self.assertEqual(response.context_data["tree"]["items"].count(), 1)

        with self.login_user_context(admin_user):
            response = self.client.get(endpoint + "&q=level2")
            self.assertEqual(response.context_data["tree"]["items"].count(), 3)

    def test_empty_placeholder_with_nested_plugins(self):
        # It's important that this test clears a placeholder
        # which only has nested plugins.
        # This allows us to catch a strange bug that happened
        # under these conditions with the new related name handling.
        page_en = create_page("EmptyPlaceholderTestPage (EN)", "nav_playground.html", "en")
        ph = page_en.get_placeholders("en").get(slot="body")

        column_wrapper = add_plugin(ph, "MultiColumnPlugin", "en")

        add_plugin(ph, "ColumnPlugin", "en", parent=column_wrapper)
        add_plugin(ph, "ColumnPlugin", "en", parent=column_wrapper)

        # before cleaning the de placeholder
        self.assertEqual(ph.get_plugins("en").count(), 3)

        admin_user, staff = self._get_guys()
        endpoint = self.get_clear_placeholder_url(ph, language="en")

        with self.login_user_context(admin_user):
            response = self.client.post(endpoint, {"test": 0})

        self.assertEqual(response.status_code, 200)

        # After cleaning the de placeholder, en placeholder must still have all the plugins
        self.assertEqual(ph.get_plugins("en").count(), 0)

    def test_empty_placeholder_in_correct_language(self):
        """
        Test that Cleaning a placeholder only affect current language contents
        """
        # create some objects
        page_en = create_page("EmptyPlaceholderTestPage (EN)", "nav_playground.html", "en")
        ph = page_en.get_placeholders("en").get(slot="body")

        # add the text plugin to the en version of the page
        add_plugin(ph, "TextPlugin", "en", body="Hello World EN 1")
        add_plugin(ph, "TextPlugin", "en", body="Hello World EN 2")

        # creating a de title of the page and adding plugins to it
        create_page_content("de", page_en.get_title(), page_en, slug=page_en.get_slug("en"))
        add_plugin(ph, "TextPlugin", "de", body="Hello World DE")
        add_plugin(ph, "TextPlugin", "de", body="Hello World DE 2")
        add_plugin(ph, "TextPlugin", "de", body="Hello World DE 3")

        # before cleaning the de placeholder
        self.assertEqual(ph.get_plugins("en").count(), 2)
        self.assertEqual(ph.get_plugins("de").count(), 3)

        admin_user, staff = self._get_guys()
        endpoint = self.get_clear_placeholder_url(ph, language="de")

        with self.login_user_context(admin_user):
            response = self.client.post(endpoint, {"test": 0})

        self.assertEqual(response.status_code, 200)

        # After cleaning the de placeholder, en placeholder must still have all the plugins
        self.assertEqual(ph.get_plugins("en").count(), 2)
        self.assertEqual(ph.get_plugins("de").count(), 0)

    def test_template_inheritance_magic_with_three_levels_of_inheritance_inherits_from_parent(self):
        admin_user = self.get_superuser()
        grandparent_page = create_page("grandparent-page", "nav_playground.html", "en", created_by=admin_user)
        parent_page = create_page("parent-page", "col_two.html", "en", created_by=admin_user, parent=grandparent_page)
        child_page = create_page("child-page", "nav_playground.html", "en", created_by=admin_user, parent=parent_page)

        with self.login_user_context(admin_user):
            self.client.post(
                self.get_page_change_template_uri("en", child_page), {"template": TEMPLATE_INHERITANCE_MAGIC}
            )
            child_page_content = PageContent.objects.get(page=child_page, language="en")
            self.assertEqual(child_page_content.get_template(), "col_two.html")

    def test_template_inheritance_magic_with_three_levels_of_inheritance_inherits_from_grandparent(self):
        admin_user = self.get_superuser()
        grandparent_page = create_page("grandparent-page", "nav_playground.html", "en", created_by=admin_user)
        parent_page = create_page(
            "parent-page", TEMPLATE_INHERITANCE_MAGIC, "en", created_by=admin_user, parent=grandparent_page
        )
        child_page = create_page("child-page", "col_two.html", "en", created_by=admin_user, parent=parent_page)

        with self.login_user_context(admin_user):
            self.client.post(
                self.get_page_change_template_uri("en", child_page), {"template": TEMPLATE_INHERITANCE_MAGIC}
            )
            child_page_content = PageContent.objects.get(page=child_page, language="en")
            self.assertEqual(child_page_content.get_template(), "nav_playground.html")

    @override_settings(CMS_TEMPLATES=[])
    def test_placeholder_slot_inheritance_magic_with_two_levels_of_inheritance_without_configured_templates(self):
        admin_user = self.get_superuser()
        parent_page = create_page("grandparent-page", TEMPLATE_INHERITANCE_MAGIC, "en", created_by=admin_user)
        child_page = create_page(
            "parent-page", TEMPLATE_INHERITANCE_MAGIC, "en", created_by=admin_user, parent=parent_page
        )

        child_slots = child_page.get_content_obj("en").get_placeholder_slots()

        self.assertEqual(child_slots, ("content",))


class AdminTests(AdminTestsBase):
    # TODO: needs tests for actual permissions, not only superuser/normaluser

    def setUp(self):
        self.page = create_page("testpage", "nav_playground.html", "en")

    def get_admin(self):
        User = get_user_model()

        fields = dict(email="admin@django-cms.org", is_staff=True, is_superuser=True)

        if User.USERNAME_FIELD != "email":
            fields[User.USERNAME_FIELD] = "admin"

        usr = User(**fields)
        usr.set_password(getattr(usr, User.USERNAME_FIELD))
        usr.save()
        return usr

    def get_permless(self):
        User = get_user_model()

        fields = dict(email="permless@django-cms.org", is_staff=True)

        if User.USERNAME_FIELD != "email":
            fields[User.USERNAME_FIELD] = "permless"

        usr = User(**fields)
        usr.set_password(getattr(usr, User.USERNAME_FIELD))
        usr.save()
        return usr

    def get_page(self):
        return self.page

    def test_admin_index(self):
        endpoint = admin_reverse("index")
        endpoint_page = admin_reverse("cms_page_changelist")
        endpoint_page_content = admin_reverse("cms_pagecontent_changelist")

        admin_user = self.get_admin()
        with self.login_user_context(admin_user):
            response = self.client.get(endpoint)
            self.assertEqual(response.status_code, 200)

        self.assertNotContains(response, endpoint_page)
        self.assertContains(response, endpoint_page_content)

    def test_change_innavigation(self):
        page = self.get_page()
        content = self.get_pagecontent_obj(page, "en")
        permless = self.get_permless()
        admin_user = self.get_admin()
        pagecontent_admin = self.pagecontent_admin_class
        with self.login_user_context(permless):
            request = self.get_request()
            response = pagecontent_admin.change_innavigation(request, content.pk)
            self.assertEqual(response.status_code, 405)
        with self.login_user_context(permless):
            request = self.get_request(post_data={"no": "data"})
            response = pagecontent_admin.change_innavigation(request, content.pk)
            self.assertEqual(response.status_code, 403)
        with self.login_user_context(permless):
            request = self.get_request(post_data={"no": "data"})
            self.assertEqual(response.status_code, 403)
        with self.login_user_context(admin_user):
            request = self.get_request(post_data={"no": "data"})
            self.assertRaises(Http404, pagecontent_admin.change_innavigation, request, content.pk + 100)
        with self.login_user_context(permless):
            request = self.get_request(post_data={"no": "data"})
            response = pagecontent_admin.change_innavigation(request, content.pk)
            self.assertEqual(response.status_code, 403)
        with self.login_user_context(admin_user):
            request = self.get_request(post_data={"no": "data"})
            old = page.get_in_navigation()
            response = pagecontent_admin.change_innavigation(request, content.pk)
            self.assertEqual(response.status_code, 204)
            page = self.reload(page)
            self.assertEqual(old, not page.get_in_navigation())

    def test_remove_plugin_requires_post(self):
        ph = self.page.get_placeholders("en")[0]
        plugin = add_plugin(ph, "TextPlugin", "en", body="test")
        admin_user = self.get_admin()
        with self.login_user_context(admin_user):
            endpoint = self.get_delete_plugin_uri(plugin)
            response = self.client.get(endpoint)
            self.assertEqual(response.status_code, 200)

    def test_too_many_plugins_global(self):
        conf = {
            "body": {
                "limits": {
                    "global": 1,
                },
            },
        }
        admin_user = self.get_admin()
        url = admin_reverse("cms_placeholder_add_plugin")
        with self.settings(CMS_PERMISSION=False, CMS_PLACEHOLDER_CONF=conf):
            page = create_page("somepage", "nav_playground.html", "en")
            body = page.get_placeholders("en").get(slot="body")
            add_plugin(body, "TextPlugin", "en", body="text")
            with self.login_user_context(admin_user):
                data = {
                    "plugin_type": "TextPlugin",
                    "placeholder_id": body.pk,
                    "target_language": "en",
                }
                response = self.client.post(url, data)
                self.assertEqual(response.status_code, HttpResponseBadRequest.status_code)

    def test_too_many_plugins_type(self):
        conf = {
            "body": {
                "limits": {
                    "TextPlugin": 1,
                },
            },
        }
        admin_user = self.get_admin()
        url = admin_reverse("cms_placeholder_add_plugin")
        with self.settings(CMS_PERMISSION=False, CMS_PLACEHOLDER_CONF=conf):
            page = create_page("somepage", "nav_playground.html", "en")
            body = page.get_placeholders("en").get(slot="body")
            add_plugin(body, "TextPlugin", "en", body="text")
            with self.login_user_context(admin_user):
                data = {
                    "plugin_type": "TextPlugin",
                    "placeholder_id": body.pk,
                    "target_language": "en",
                    "plugin_parent": "",
                }
                response = self.client.post(url, data)
                self.assertEqual(response.status_code, HttpResponseBadRequest.status_code)

    def test_page_edit_field_endpoint(self):
        endpoint = (
            admin_reverse("cms_page_edit_title_fields", args=(self.page.pk, "en"))
            + "?language=en&edit_fields=page_title"
        )
        with self.login_user_context(self.get_superuser()):
            response = self.client.get(endpoint)
        if DJANGO_4_2:
            self.assertContains(response, '<input type="text" name="page_title" maxlength="255" id="id_page_title">')
        else:
            self.assertContains(
                response,
                '<input type="text" name="page_title" maxlength="255" aria-describedby="id_page_title_helptext" id="id_page_title">',
            )


class NoDBAdminTests(CMSTestCase):
    @property
    def admin_class(self):
        return site._registry[Page]

    def test_lookup_allowed_site__exact(self):
        request = self.get_request()
        if DJANGO_5_1:
            self.assertTrue(self.admin_class.lookup_allowed("site__exact", "1"))
        else:
            self.assertTrue(self.admin_class.lookup_allowed("site__exact", "1", request=request))

    def test_lookup_allowed_published(self):
        request = self.get_request()
        if DJANGO_5_1:
            self.assertTrue(self.admin_class.lookup_allowed("site__exact", "1"))
        else:
            self.assertTrue(self.admin_class.lookup_allowed("site__exact", "1", request=request))


class PluginPermissionTests(AdminTestsBase):
    def setUp(self):
        self._page = create_page("test page", "nav_playground.html", "en")
        self._placeholder = self._page.get_placeholders("en")[0]

    def _get_admin(self):
        User = get_user_model()

        fields = dict(email="admin@django-cms.org", is_staff=True, is_active=True)

        if User.USERNAME_FIELD != "email":
            fields[User.USERNAME_FIELD] = "admin"

        admin_user = User(**fields)

        admin_user.set_password("admin")
        admin_user.save()
        return admin_user

    def _get_page_admin(self):
        return admin.site._registry[Page]

    def _give_permission(self, user, model, permission_type, save=True):
        codename = f"{permission_type}_{model._meta.object_name.lower()}"
        user.user_permissions.add(Permission.objects.get(codename=codename))

    def _give_page_permission_rights(self, user):
        self._give_permission(user, PagePermission, "add")
        self._give_permission(user, PagePermission, "change")
        self._give_permission(user, PagePermission, "delete")

    def _get_change_page_request(self, user, page):
        return type("Request", (object,), {"user": user, "path": self.get_page_change_uri("en", page)})

    def _give_cms_permissions(self, user, save=True):
        for perm_type in ["add", "change", "delete"]:
            for model in [Page, PageContent]:
                self._give_permission(user, model, perm_type, False)
        gpp = GlobalPagePermission.objects.create(
            user=user,
            can_change=True,
            can_delete=True,
            can_publish=True,
            can_change_advanced_settings=False,
            can_change_permissions=False,
            can_move_page=True,
        )
        gpp.sites = Site.objects.all()
        if save:
            user.save()

    def _create_plugin(self):
        plugin = add_plugin(self._placeholder, "TextPlugin", "en")
        return plugin

    def test_plugin_edit_wrong_url(self):
        """User tries to edit a plugin using a random url. 404 response returned"""
        plugin = self._create_plugin()
        _, normal_guy = self._get_guys()

        if get_user_model().USERNAME_FIELD == "email":
            self.client.login(username="test@test.com", password="test@test.com")
        else:
            self.client.login(username="test", password="test")

        self._give_permission(normal_guy, Text, "change")
        endpoint = "{}edit-plugin/{}/".format(
            admin_reverse("cms_placeholder_edit_plugin", args=[plugin.id]), plugin.id
        )
        endpoint += "?cms_path=/en/"
        response = self.client.post(endpoint, dict())

        self.assertEqual(response.status_code, HttpResponseNotFound.status_code)
        self.assertTrue("Page not found" in force_str(response.content))


class AdminFormsTests(AdminTestsBase):
    def test_clean_overwrite_url(self):
        """
        A manual path needs to be stripped from leading and trailing slashes.
        """
        superuser = self.get_superuser()
        cms_page = create_page("test page", "nav_playground.html", "en")
        page_data = {
            "title": "test page",
            "slug": "test-page",
            "overwrite_url": "/overwrite/url/",
            "template": cms_page.get_template("en"),
        }
        endpoint = self.get_page_change_uri("en", cms_page)

        with self.login_user_context(superuser):
            response = self.client.post(endpoint, page_data)
            self.assertRedirects(response, self.get_pages_admin_list_uri("en"))
            self.assertSequenceEqual(
                cms_page.urls.values_list("path", "managed"),
                [("overwrite/url", False)],
            )

    def test_missmatching_site_parent_dotsite(self):
        superuser = self.get_superuser()
        new_site = Site.objects.create(id=2, domain="foo.com", name="foo.com")
        parent_page = api.create_page("test", get_cms_setting("TEMPLATES")[0][0], "fr", site=new_site)
        new_page_data = {
            "title": "Title",
            "slug": "slug",
            "parent_page": parent_page.pk,
        }
        with self.login_user_context(superuser):
            # Invalid parent
            endpoint = self.get_page_add_uri("en")
            response = self.client.post(endpoint, new_page_data)
            if DJANGO_5_1:
                expected_error = (
                    '<ul class="errorlist">' "<li>Site doesn&#39;t match the parent&#39;s page site</li></ul>"
                )
            else:
                expected_error = (
                    '<ul class="errorlist" id="id_parent_page_error">'
                    "<li>Site doesn&#x27;t match the parent&#x27;s page site</li></ul>"
                )
            self.assertEqual(response.status_code, 200)
            self.assertContains(response, expected_error, html=True)

    def test_form_errors(self):
        superuser = self.get_superuser()
        site0 = Site.objects.create(id=2, domain="foo.com", name="foo.com")
        page1 = api.create_page("test", get_cms_setting("TEMPLATES")[0][0], "fr", site=site0)

        new_page_data = {
            "title": "Title",
            "slug": "home",
            "parent_page": page1.pk,
        }
        endpoint = self.get_page_add_uri("en")

        with self.login_user_context(superuser):
            # Invalid parent
            response = self.client.post(endpoint, new_page_data)
            if DJANGO_5_1:
                expected_error = (
                    '<ul class="errorlist">' "<li>Site doesn&#39;t match the parent&#39;s page site</li></ul>"
                )
            else:
                expected_error = (
                    '<ul class="errorlist" id="id_parent_page_error">'
                    "<li>Site doesn&#x27;t match the parent&#x27;s page site</li></ul>"
                )

            self.assertEqual(response.status_code, 200)
            self.assertContains(response, expected_error, html=True)

        new_page_data = {
            "title": "Title",
            "slug": "#",
        }

        with self.subTest("Invalid slug"):
            with self.login_user_context(superuser):
                # Invalid slug
                response = self.client.post(endpoint, new_page_data)
                if DJANGO_5_1:
                    expected_error = (
                        '<ul class="errorlist"><li>Enter a valid “slug” consisting of letters, numbers, '
                        "underscores or hyphens.</li></ul>"
                    )
                else:
                    expected_error = (
                        '<ul class="errorlist" id="id_slug_error"><li>Enter a valid “slug” consisting of '
                        "letters, numbers, underscores or hyphens.</li></ul>"
                    )

                self.assertEqual(response.status_code, 200)
                self.assertContains(response, expected_error, html=True)

        page2 = api.create_page("test", get_cms_setting("TEMPLATES")[0][0], "en")
        new_page_data = {
            "title": "Title",
            "slug": "test",
        }

        with self.login_user_context(superuser):
            with self.subTest("Duplicate slug / path"):
                response = self.client.post(endpoint, new_page_data)
                if DJANGO_5_1:
                    expected_error = (
                        '<ul class="errorlist"><li>Page '
                        '<a href="{}" target="_blank">test</a> '
                        "has the same url 'test' as current page.</li></ul>"
                    ).format(self.get_page_change_uri("en", page2))
                else:
                    expected_error = (
                        '<ul class="errorlist" id="id_slug_error"><li>Page '
                        '<a href="{}" target="_blank">test</a> '
                        "has the same url 'test' as current page.</li></ul>"
                    ).format(self.get_page_change_uri("en", page2))

                self.assertEqual(response.status_code, 200)
                self.assertContains(response, expected_error, html=True)

    @override_settings(CMS_PERMISSION=False)
    def test_reverse_id_error_location(self):
        superuser = self.get_superuser()
        create_page("Page 1", "nav_playground.html", "en", reverse_id="p1")
        page2 = create_page("Page 2", "nav_playground.html", "en")
        page2_endpoint = self.get_admin_url(Page, "advanced", page2.pk)

        # Assemble a bunch of data to test the page form
        page2_data = {
            "reverse_id": "p1",
            "template": "col_two.html",
        }

        with self.login_user_context(superuser):
            response = self.client.post(page2_endpoint, page2_data)
            expected_error = '<ul class="errorlist">' "<li>A page with this reverse URL id exists already.</li></ul>"
            self.assertEqual(response.status_code, 200)
            self.assertContains(response, expected_error.format(page2.pk), html=True)

    @override_settings(CMS_PERMISSION=False)
    def test_advanced_settings_endpoint_fails_gracefully(self):
        admin_user = self.get_superuser()
        page = create_page("Page 1", "nav_playground.html", "en")
        page_data = {
            "language": "en",
            "template": "col_two.html",
        }
        path = admin_reverse("cms_page_advanced", args=(page.pk,))

        # It's important to test fields that are validated
        # automatically by Django vs fields that are validated
        # via the clean() method by us.
        # Fields validated by Django will not be in cleaned data
        # if they have an error so if we rely on these in the clean()
        # method then an error will be raised.

        # So test that the form short circuits if there's errors.
        page_data["application_urls"] = "TestApp"

        with self.login_user_context(admin_user):
            response = self.client.post(path, page_data)
            # Assert user is not redirected because there was a form error
            self.assertEqual(response.status_code, 200)

            page = page.reload()
            # Make sure no change was made
            self.assertEqual(page.application_urls, None)

    def test_render_edit_mode(self):
        from django.core.cache import cache

        cache.clear()

        homepage = create_page("Test", "static.html", "en")
        homepage.set_as_homepage()

        for placeholder in homepage.get_placeholders("en"):
            add_plugin(placeholder, TextPlugin, "en", body="<b>Test</b>")

        user = self.get_superuser()
        self.assertEqual(homepage.get_placeholders("en").count(), 2)
        with self.login_user_context(user):
            output = force_str(self.client.get("/en/").content)
            self.assertIn("<b>Test</b>", output)
            self.assertEqual(StaticPlaceholder.objects.count(), 2)
            for placeholder in homepage.get_placeholders("en"):
                add_plugin(placeholder, TextPlugin, "en", body="<b>Test</b>")
            output = force_str(self.client.get("/en/").content)
            self.assertIn("<b>Test</b>", output)

    def test_tree_view_queries(self):
        from django.core.cache import cache

        cache.clear()
        for i in range(10):
            create_page("Test%s" % i, "col_two.html", "en")
        for placeholder in Placeholder.objects.all():
            add_plugin(placeholder, TextPlugin, "en", body="<b>Test</b>")

        user = self.get_superuser()
        with self.login_user_context(user):
            with self.assertNumQueries(8):
                force_str(self.client.get(self.get_pages_admin_list_uri("en")))

    def test_smart_link_pages(self):
        admin, staff_guy = self._get_guys()
        page_url = URL_CMS_PAGE_PUBLISHED  # Not sure how to achieve this with reverse...
        create_page("home", "col_two.html", "en")

        with self.login_user_context(staff_guy):
            multi_title_page = create_page(
                "main_title", "col_two.html", "en", overwrite_url="overwritten_url", menu_title="menu_title"
            )

            title = multi_title_page.get_content_obj()
            title.page_title = "page_title"
            title.save()

            multi_title_page.save()

            # Non ajax call should return a 403 as this page shouldn't be accessed by anything else but ajax queries
            self.assertEqual(403, self.client.get(page_url).status_code)

            self.assertEqual(200, self.client.get(page_url, HTTP_X_REQUESTED_WITH="XMLHttpRequest").status_code)

            # Test that the query param is working as expected.
            self.assertEqual(
                1,
                len(
                    json.loads(
                        self.client.get(
                            page_url, {"q": "main_title"}, HTTP_X_REQUESTED_WITH="XMLHttpRequest"
                        ).content.decode("utf-8")
                    )
                ),
            )

            self.assertEqual(
                1,
                len(
                    json.loads(
                        self.client.get(
                            page_url, {"q": "menu_title"}, HTTP_X_REQUESTED_WITH="XMLHttpRequest"
                        ).content.decode("utf-8")
                    )
                ),
            )

            self.assertEqual(
                1,
                len(
                    json.loads(
                        self.client.get(
                            page_url, {"q": "overwritten_url"}, HTTP_X_REQUESTED_WITH="XMLHttpRequest"
                        ).content.decode("utf-8")
                    )
                ),
            )

            self.assertEqual(
                1,
                len(
                    json.loads(
                        self.client.get(
                            page_url, {"q": "page_title"}, HTTP_X_REQUESTED_WITH="XMLHttpRequest"
                        ).content.decode("utf-8")
                    )
                ),
            )


class PagePropsMovedToPageContentTests(CMSTestCase):
    def test_moved_fields(self):
        non_editables = [
            "id",
            "changed_by",
            "changed_date",
            "created_by",
            "creation_date",
            "page_id",
            "in_navigation",
            "language",
        ]

        change_page_form_fieldsets = flatten_fieldsets(ChangePageForm.fieldsets)
        page_content_fields = [field.attname for field in PageContent._meta.fields]

        # filter the non editables from PageContent fields
        filtered_page_content_fields = list(set(page_content_fields) - set(non_editables))

        for field in filtered_page_content_fields:
            self.assertIn(field, change_page_form_fieldsets)


class AdminPageEditContentSizeTests(AdminTestsBase):
    """
    System user count influences the size of the page edit page,
    but the users are only 2 times present on the page

    The test relates to extra=0
    at PagePermissionInlineAdminForm and ViewRestrictionInlineAdmin
    """

    def test_editpage_contentsize(self):
        """
        Expected a username only 2 times in the content, but a relationship
        between usercount and pagesize
        """
        with self.settings(CMS_PERMISSION=True):
            admin_user = self.get_superuser()
            PAGE_NAME = "TestPage"
            USER_NAME = "test_size_user_0"
            current_site = Site.objects.get(pk=1)
            page = create_page(PAGE_NAME, "nav_playground.html", "en", site=current_site, created_by=admin_user)
            page.save()
            self._page = page
            with self.login_user_context(admin_user):
                url = base.URL_CMS_PAGE_ADVANCED_CHANGE % self._page.pk
                response = self.client.get(url)
                self.assertEqual(response.status_code, 200)
                old_response_size = len(response.content)
                old_user_count = get_user_model().objects.count()
                # create additional user and reload the page
                get_user_model().objects.create_user(
                    username=USER_NAME, email=USER_NAME + "@django-cms.org", password=USER_NAME
                )
                user_count = get_user_model().objects.count()
                more_users_in_db = old_user_count < user_count
                # we have more users
                self.assertTrue(more_users_in_db, "New users got NOT created")
                response = self.client.get(url)
                new_response_size = len(response.content)
                page_size_grown = old_response_size < new_response_size
                # expect that the pagesize gets influenced by the useramount of the system
                self.assertTrue(page_size_grown, "Page size has not grown after user creation")
                # usernames are only 2 times in content
                text = smart_str(response.content, response.charset)
                foundcount = text.count(USER_NAME)
                # 2 forms contain usernames as options
                self.assertEqual(
                    foundcount,
                    2,
                    f"Username {USER_NAME} appeared {foundcount} times in response.content, expected 2 times",
                )


class AdminPageTreeTests(AdminTestsBase):
    def test_move_node(self):
        admin_user, staff = self._get_guys()
        page_admin = self.page_admin_class

        alpha = create_page("Alpha", "nav_playground.html", "en")
        beta = create_page("Beta", TEMPLATE_INHERITANCE_MAGIC, "en")
        gamma = create_page("Gamma", TEMPLATE_INHERITANCE_MAGIC, "en")
        delta = create_page("Delta", TEMPLATE_INHERITANCE_MAGIC, "en")

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #   ⊢ Beta
        #   ⊢ Gamma
        #   ⊢ Delta

        # Move Beta to be a child of Alpha
        data = {
            "id": beta.pk,
            "position": 0,
            "target": alpha.pk,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=beta.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 1)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #   ⊢ Gamma
        #   ⊢ Delta

        # Move Gamma to be a child of Beta
        data = {
            "id": gamma.pk,
            "position": 0,
            "target": beta.pk,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=gamma.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 2)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 1)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #           ⊢ Gamma
        #   ⊢ Delta

        # Move Delta to be a child of Beta
        data = {
            "id": delta.pk,
            "position": 0,
            "target": gamma.pk,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=delta.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 3)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 2)
        gamma.refresh_from_db()
        self.assertEqual(gamma.get_descendants().count(), 1)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #           ⊢ Gamma
        #               ⊢ Delta

        # Move Beta to the root as node #1 (positions are 0-indexed)
        data = {
            "id": beta.pk,
            "position": 1,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=beta.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 0)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 2)
        gamma.refresh_from_db()
        self.assertEqual(gamma.get_descendants().count(), 1)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #   ⊢ Beta
        #       ⊢ Gamma
        #           ⊢ Delta

        # Move Beta to be a child of Alpha again
        data = {
            "id": beta.pk,
            "position": 0,
            "target": alpha.pk,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=beta.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 3)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 2)
        gamma.refresh_from_db()
        self.assertEqual(gamma.get_descendants().count(), 1)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #           ⊢ Gamma
        #               ⊢ Delta

        # Move Gamma to the root as node #1 (positions are 0-indexed)
        data = {
            "id": gamma.pk,
            "position": 1,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=gamma.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 1)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 0)
        gamma.refresh_from_db()
        self.assertEqual(gamma.get_descendants().count(), 1)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #   ⊢ Gamma
        #       ⊢ Delta

        # Move Delta to the root as node #1 (positions are 0-indexed)
        data = {
            "id": delta.pk,
            "position": 1,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=delta.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 1)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 0)
        gamma.refresh_from_db()
        self.assertEqual(gamma.get_descendants().count(), 0)

        # Current structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #   ⊢ Delta
        #   ⊢ Gamma

        # Move Gamma to be a child of Delta
        data = {
            "id": gamma.pk,
            "position": 1,
            "target": delta.pk,
        }

        with self.login_user_context(admin_user):
            request = self.get_request(post_data=data)
            response = page_admin.move_page(request, page_id=gamma.pk)
            data = json.loads(response.content.decode("utf8"))

        self.assertEqual(response.status_code, 200)
        self.assertEqual(data["status"], 200)
        alpha.refresh_from_db()
        self.assertEqual(alpha.get_descendants().count(), 1)
        beta.refresh_from_db()
        self.assertEqual(beta.get_descendants().count(), 0)
        gamma.refresh_from_db()
        self.assertEqual(gamma.get_descendants().count(), 0)
        delta.refresh_from_db()
        self.assertEqual(delta.get_descendants().count(), 1)

        # Final structure:
        #   <root>
        #   ⊢ Alpha
        #       ⊢ Beta
        #   ⊢ Delta
        #       ⊢ Gamma

    def test_create_page_language(self):
        """tests if the New Page button creates a page content object in the language specified
        by the language selectors. The creates pages in all languages and checks if the "+" button
        creates a child in the same language"""

        admin_user, staff = self._get_guys()
        pagecontent_admin = self.pagecontent_admin_class

        languages = get_language_list()  # Run through all languages
        url = admin_reverse("cms_pagecontent_changelist")
        add_url = admin_reverse("cms_pagecontent_add")  # "Add page" button
        self.assertIn("/en/", add_url + "?language=en")  # English admin (default in tests)
        with self.login_user_context(admin_user):
            request = self.get_request(url)
            response = pagecontent_admin.changelist_view(request)
            self.assertContains(response, f"{add_url}?language=en")

            for language in languages:  # Now check all language with the languages selector defined
                request = self.get_request(path=f"{url}?language={language}")  # Language of the page tree
                response = pagecontent_admin.changelist_view(request)
                self.assertContains(response, f'href="{add_url}?language={language}"')

            # Create pages in all languages
            page = {}
            for language in languages:
                page[language] = create_page("Alpha", "nav_playground.html", language)

            # Get the page tree and see if the href triggers an add page content for the
            # selected language
            url = admin_reverse("cms_pagecontent_get_tree")
            for language in languages:
                request = self.get_request(path=f"{url}?language={language}")
                response = pagecontent_admin.get_tree(request)
                self.assertContains(response, f'href="{add_url}?parent_page={page[language].id}&language={language}"')


class AdminInputSanitationTests(AdminTestsBase):
    @property
    def settings_admin_class(self):
        return site._registry[UserSettings]

    def test_admin_session_store(self):
        """
        Settings added to admin through session store should be escaped
        """
        admin_user, staff = self._get_guys()

        with self.login_user_context(admin_user):
            request = self.get_request(
                self.settings_admin_class.urls[0],
                post_data={
                    "settings": '<script>alert("hello world")</script>',
                },
            )
            response = self.settings_admin_class.session_store(request)

            self.assertEqual(response.content, b'"&lt;script&gt;alert(&quot;hello world&quot;)&lt;/script&gt;"')
