from django.contrib.admin.utils import quote
from django.contrib.auth.models import Permission
from django.contrib.contenttypes.models import ContentType
from django.urls import include, path, reverse
from django.utils.html import format_html
from django.utils.translation import gettext_lazy as _

from wagtail.admin.menu import MenuItem
from wagtail.core import hooks
from wagtail.snippets import urls
from wagtail.snippets.models import get_snippet_models
from wagtail.snippets.permissions import (
    get_permission_name, user_can_edit_snippet_type, user_can_edit_snippets)
from wagtail.snippets.widgets import SnippetListingButton


@hooks.register('register_admin_urls')
def register_admin_urls():
    return [
        path('snippets/', include(urls, namespace='wagtailsnippets')),
    ]


class SnippetsMenuItem(MenuItem):
    def is_shown(self, request):
        return user_can_edit_snippets(request.user)


@hooks.register('register_admin_menu_item')
def register_snippets_menu_item():
    return SnippetsMenuItem(
        _('Snippets'),
        reverse('wagtailsnippets:index'),
        icon_name='snippet',
        order=500
    )


@hooks.register('insert_editor_js')
def editor_js():
    return format_html(
        """
            <script>window.chooserUrls.snippetChooser = '{0}';</script>
        """,
        reverse('wagtailsnippets:choose_generic')
    )


@hooks.register('register_permissions')
def register_permissions():
    content_types = ContentType.objects.get_for_models(*get_snippet_models()).values()
    return Permission.objects.filter(content_type__in=content_types)


@hooks.register('register_snippet_listing_buttons')
def register_snippet_listing_buttons(snippet, user, next_url=None):
    model = type(snippet)

    if user_can_edit_snippet_type(user, model):
        yield SnippetListingButton(
            _('Edit'),
            reverse('wagtailsnippets:edit', args=[model._meta.app_label, model._meta.model_name, quote(snippet.pk)]),
            attrs={'aria-label': _("Edit '%(title)s'") % {'title': str(snippet)}},
            priority=10
        )

    if user.has_perm(get_permission_name('delete', model)):
        yield SnippetListingButton(
            _('Delete'),
            reverse('wagtailsnippets:delete', args=[model._meta.app_label, model._meta.model_name, quote(snippet.pk)]),
            attrs={'aria-label': _("Delete '%(title)s'") % {'title': str(snippet)}},
            priority=20
        )
