import urllib.parse

from django.contrib.auth.models import User
from django.test import TestCase
from django.urls import reverse

from bookmarks.models import Bookmark, Tag, UserProfile
from bookmarks.tests.helpers import BookmarkFactoryMixin


class BookmarkIndexViewTestCase(TestCase, BookmarkFactoryMixin):

    def setUp(self) -> None:
        user = self.get_or_create_test_user()
        self.client.force_login(user)

    def assertVisibleBookmarks(self, response, bookmarks: [Bookmark], link_target: str = '_blank'):
        html = response.content.decode()
        self.assertContains(response, 'data-is-bookmark-item', count=len(bookmarks))

        for bookmark in bookmarks:
            self.assertInHTML(
                f'<a href="{bookmark.url}" target="{link_target}" rel="noopener" class="">{bookmark.resolved_title}</a>',
                html
            )

    def assertInvisibleBookmarks(self, response, bookmarks: [Bookmark], link_target: str = '_blank'):
        html = response.content.decode()

        for bookmark in bookmarks:
            self.assertInHTML(
                f'<a href="{bookmark.url}" target="{link_target}" rel="noopener" class="">{bookmark.resolved_title}</a>',
                html,
                count=0
            )

    def assertVisibleTags(self, response, tags: [Tag]):
        self.assertContains(response, 'data-is-tag-item', count=len(tags))

        for tag in tags:
            self.assertContains(response, tag.name)

    def assertInvisibleTags(self, response, tags: [Tag]):
        for tag in tags:
            self.assertNotContains(response, tag.name)

    def test_should_list_unarchived_and_user_owned_bookmarks(self):
        other_user = User.objects.create_user('otheruser', 'otheruser@example.com', 'password123')
        visible_bookmarks = [
            self.setup_bookmark(),
            self.setup_bookmark(),
            self.setup_bookmark()
        ]
        invisible_bookmarks = [
            self.setup_bookmark(is_archived=True),
            self.setup_bookmark(user=other_user),
        ]

        response = self.client.get(reverse('bookmarks:index'))

        self.assertContains(response, '<ul class="bookmark-list">')  # Should render list
        self.assertVisibleBookmarks(response, visible_bookmarks)
        self.assertInvisibleBookmarks(response, invisible_bookmarks)

    def test_should_list_bookmarks_matching_query(self):
        visible_bookmarks = [
            self.setup_bookmark(title='searchvalue'),
            self.setup_bookmark(title='searchvalue'),
            self.setup_bookmark(title='searchvalue')
        ]
        invisible_bookmarks = [
            self.setup_bookmark(),
            self.setup_bookmark(),
            self.setup_bookmark()
        ]

        response = self.client.get(reverse('bookmarks:index') + '?q=searchvalue')

        self.assertContains(response, '<ul class="bookmark-list">')  # Should render list
        self.assertVisibleBookmarks(response, visible_bookmarks)
        self.assertInvisibleBookmarks(response, invisible_bookmarks)

    def test_should_list_tags_for_unarchived_and_user_owned_bookmarks(self):
        other_user = User.objects.create_user('otheruser', 'otheruser@example.com', 'password123')
        visible_tags = [
            self.setup_tag(),
            self.setup_tag(),
            self.setup_tag(),
        ]
        invisible_tags = [
            self.setup_tag(),  # unused tag
            self.setup_tag(),  # used in archived bookmark
            self.setup_tag(user=other_user),  # belongs to other user
        ]

        # Assign tags to some bookmarks with duplicates
        self.setup_bookmark(tags=[visible_tags[0]])
        self.setup_bookmark(tags=[visible_tags[0]])
        self.setup_bookmark(tags=[visible_tags[1]])
        self.setup_bookmark(tags=[visible_tags[1]])
        self.setup_bookmark(tags=[visible_tags[2]])
        self.setup_bookmark(tags=[visible_tags[2]])

        self.setup_bookmark(tags=[invisible_tags[1]], is_archived=True)
        self.setup_bookmark(tags=[invisible_tags[2]], user=other_user)

        response = self.client.get(reverse('bookmarks:index'))

        self.assertVisibleTags(response, visible_tags)
        self.assertInvisibleTags(response, invisible_tags)

    def test_should_list_tags_for_bookmarks_matching_query(self):
        visible_tags = [
            self.setup_tag(),
            self.setup_tag(),
            self.setup_tag(),
        ]
        invisible_tags = [
            self.setup_tag(),
            self.setup_tag(),
            self.setup_tag(),
        ]

        self.setup_bookmark(tags=[visible_tags[0]], title='searchvalue'),
        self.setup_bookmark(tags=[visible_tags[1]], title='searchvalue')
        self.setup_bookmark(tags=[visible_tags[2]], title='searchvalue')
        self.setup_bookmark(tags=[invisible_tags[0]])
        self.setup_bookmark(tags=[invisible_tags[1]])
        self.setup_bookmark(tags=[invisible_tags[2]])

        response = self.client.get(reverse('bookmarks:index') + '?q=searchvalue')

        self.assertVisibleTags(response, visible_tags)
        self.assertInvisibleTags(response, invisible_tags)

    def test_should_open_bookmarks_in_new_page_by_default(self):
        visible_bookmarks = [
            self.setup_bookmark(),
            self.setup_bookmark(),
            self.setup_bookmark()
        ]

        response = self.client.get(reverse('bookmarks:index'))

        self.assertVisibleBookmarks(response, visible_bookmarks, '_blank')

    def test_should_open_bookmarks_in_same_page_if_specified_in_user_profile(self):
        user = self.get_or_create_test_user()
        user.profile.bookmark_link_target = UserProfile.BOOKMARK_LINK_TARGET_SELF
        user.profile.save()

        visible_bookmarks = [
            self.setup_bookmark(),
            self.setup_bookmark(),
            self.setup_bookmark()
        ]

        response = self.client.get(reverse('bookmarks:index'))

        self.assertVisibleBookmarks(response, visible_bookmarks, '_self')

    def test_edit_link_return_url_should_contain_query_params(self):
        bookmark = self.setup_bookmark(title='foo')

        # without query params
        url = reverse('bookmarks:index')
        response = self.client.get(url)
        html = response.content.decode()
        edit_url = reverse('bookmarks:edit', args=[bookmark.id])
        return_url = urllib.parse.quote_plus(url)

        self.assertInHTML(f'''
            <a href="{edit_url}?return_url={return_url}"
               class="btn btn-link btn-sm">Edit</a>        
        ''', html)

        # with query params
        url = reverse('bookmarks:index') + '?q=foo&user=user'
        response = self.client.get(url)
        html = response.content.decode()
        edit_url = reverse('bookmarks:edit', args=[bookmark.id])
        return_url = urllib.parse.quote_plus(url)

        self.assertInHTML(f'''
            <a href="{edit_url}?return_url={return_url}"
               class="btn btn-link btn-sm">Edit</a>        
        ''', html)