from datetime import datetime

from django.contrib import messages
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.contenttypes.models import ContentType
from django.core.paginator import EmptyPage
from django.db.models import Count, Q
from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseForbidden
from django.shortcuts import get_object_or_404, redirect, render
from django.urls import reverse
from django.utils import timezone
from django.utils.decorators import method_decorator
from django.utils.http import content_disposition_header
from django.utils.module_loading import import_string
from django.utils.translation import gettext_lazy as _
from django.views.decorators.cache import never_cache
from django.views.generic import View

from core.choices import ManagedFileRootPathChoices
from core.models import Job
from core.object_actions import BulkSync
from dcim.models import Device, DeviceRole, Platform
from extras.choices import LogLevelChoices
from extras.dashboard.forms import DashboardWidgetAddForm, DashboardWidgetForm
from extras.dashboard.utils import get_widget_class
from extras.utils import SharedObjectViewMixin
from netbox.object_actions import *
from netbox.ui import layout
from netbox.ui.panels import (
    CommentsPanel,
    ContextTablePanel,
    JSONPanel,
    TemplatePanel,
    TextCodePanel,
)
from netbox.views import generic
from netbox.views.generic.mixins import TableMixin
from utilities.forms import ConfirmationForm, get_field_value
from utilities.htmx import htmx_maybe_redirect_current_page, htmx_partial
from utilities.paginator import EnhancedPaginator, get_paginate_count
from utilities.query import count_related
from utilities.querydict import normalize_querydict
from utilities.request import copy_safe_request
from utilities.rqworker import any_workers_for_queue
from utilities.templatetags.builtins.filters import render_markdown
from utilities.views import ContentTypePermissionRequiredMixin, get_action_url, register_model_view
from virtualization.models import VirtualMachine

from . import filtersets, forms, tables
from .constants import LOG_LEVEL_RANK
from .models import *
from .tables import ReportResultsTable, ScriptJobTable, ScriptResultsTable
from .ui import panels

#
# Custom fields
#


@register_model_view(CustomField, 'list', path='', detail=False)
class CustomFieldListView(generic.ObjectListView):
    queryset = CustomField.objects.select_related('choice_set')
    filterset = filtersets.CustomFieldFilterSet
    filterset_form = forms.CustomFieldFilterForm
    table = tables.CustomFieldTable


@register_model_view(CustomField)
class CustomFieldView(generic.ObjectView):
    queryset = CustomField.objects.select_related('choice_set')
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.CustomFieldPanel(),
            panels.CustomFieldBehaviorPanel(),
            CommentsPanel(),
        ],
        right_panels=[
            panels.CustomFieldObjectTypesPanel(),
            panels.CustomFieldValidationPanel(),
            panels.CustomFieldRelatedObjectsPanel(),
        ],
    )

    def get_extra_context(self, request, instance):
        related_models = ()

        for object_type in instance.object_types.all():
            related_models += (
                object_type.model_class().objects.restrict(request.user, 'view').exclude(
                    Q(**{f'custom_field_data__{instance.name}': ''}) |
                    Q(**{f'custom_field_data__{instance.name}': None})
                ),
            )

        return {
            'related_models': related_models
        }


@register_model_view(CustomField, 'add', detail=False)
@register_model_view(CustomField, 'edit')
class CustomFieldEditView(generic.ObjectEditView):
    queryset = CustomField.objects.select_related('choice_set')
    form = forms.CustomFieldForm


@register_model_view(CustomField, 'delete')
class CustomFieldDeleteView(generic.ObjectDeleteView):
    queryset = CustomField.objects.select_related('choice_set')


@register_model_view(CustomField, 'bulk_import', path='import', detail=False)
class CustomFieldBulkImportView(generic.BulkImportView):
    queryset = CustomField.objects.select_related('choice_set')
    model_form = forms.CustomFieldImportForm


@register_model_view(CustomField, 'bulk_edit', path='edit', detail=False)
class CustomFieldBulkEditView(generic.BulkEditView):
    queryset = CustomField.objects.select_related('choice_set')
    filterset = filtersets.CustomFieldFilterSet
    table = tables.CustomFieldTable
    form = forms.CustomFieldBulkEditForm


@register_model_view(CustomField, 'bulk_rename', path='rename', detail=False)
class CustomFieldBulkRenameView(generic.BulkRenameView):
    queryset = CustomField.objects.all()
    filterset = filtersets.CustomFieldFilterSet


@register_model_view(CustomField, 'bulk_delete', path='delete', detail=False)
class CustomFieldBulkDeleteView(generic.BulkDeleteView):
    queryset = CustomField.objects.select_related('choice_set')
    filterset = filtersets.CustomFieldFilterSet
    table = tables.CustomFieldTable


#
# Custom field choices
#

@register_model_view(CustomFieldChoiceSet, 'list', path='', detail=False)
class CustomFieldChoiceSetListView(generic.ObjectListView):
    queryset = CustomFieldChoiceSet.objects.all()
    filterset = filtersets.CustomFieldChoiceSetFilterSet
    filterset_form = forms.CustomFieldChoiceSetFilterForm
    table = tables.CustomFieldChoiceSetTable


@register_model_view(CustomFieldChoiceSet)
class CustomFieldChoiceSetView(generic.ObjectView):
    queryset = CustomFieldChoiceSet.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.CustomFieldChoiceSetPanel(),
        ],
        right_panels=[
            panels.CustomFieldChoiceSetChoicesPanel(),
        ],
    )

    def get_extra_context(self, request, instance):

        # Paginate choices list
        per_page = get_paginate_count(request)
        try:
            page_number = request.GET.get('page', 1)
        except ValueError:
            page_number = 1
        choice_rows = [
            {
                'value': value,
                'label': label,
                'color': instance.get_choice_color(value),
            }
            for value, label in instance.choices
        ]
        paginator = EnhancedPaginator(choice_rows, per_page)
        try:
            choices = paginator.page(page_number)
        except EmptyPage:
            choices = paginator.page(paginator.num_pages)

        return {
            'paginator': paginator,
            'choices': choices,
        }


@register_model_view(CustomFieldChoiceSet, 'add', detail=False)
@register_model_view(CustomFieldChoiceSet, 'edit')
class CustomFieldChoiceSetEditView(generic.ObjectEditView):
    queryset = CustomFieldChoiceSet.objects.all()
    form = forms.CustomFieldChoiceSetForm


@register_model_view(CustomFieldChoiceSet, 'delete')
class CustomFieldChoiceSetDeleteView(generic.ObjectDeleteView):
    queryset = CustomFieldChoiceSet.objects.all()


@register_model_view(CustomFieldChoiceSet, 'bulk_import', path='import', detail=False)
class CustomFieldChoiceSetBulkImportView(generic.BulkImportView):
    queryset = CustomFieldChoiceSet.objects.all()
    model_form = forms.CustomFieldChoiceSetImportForm


@register_model_view(CustomFieldChoiceSet, 'bulk_edit', path='edit', detail=False)
class CustomFieldChoiceSetBulkEditView(generic.BulkEditView):
    queryset = CustomFieldChoiceSet.objects.all()
    filterset = filtersets.CustomFieldChoiceSetFilterSet
    table = tables.CustomFieldChoiceSetTable
    form = forms.CustomFieldChoiceSetBulkEditForm


@register_model_view(CustomFieldChoiceSet, 'bulk_rename', path='rename', detail=False)
class CustomFieldChoiceSetBulkRenameView(generic.BulkRenameView):
    queryset = CustomFieldChoiceSet.objects.all()
    filterset = filtersets.CustomFieldChoiceSetFilterSet


@register_model_view(CustomFieldChoiceSet, 'bulk_delete', path='delete', detail=False)
class CustomFieldChoiceSetBulkDeleteView(generic.BulkDeleteView):
    queryset = CustomFieldChoiceSet.objects.all()
    filterset = filtersets.CustomFieldChoiceSetFilterSet
    table = tables.CustomFieldChoiceSetTable


#
# Custom links
#

@register_model_view(CustomLink, 'list', path='', detail=False)
class CustomLinkListView(generic.ObjectListView):
    queryset = CustomLink.objects.all()
    filterset = filtersets.CustomLinkFilterSet
    filterset_form = forms.CustomLinkFilterForm
    table = tables.CustomLinkTable


@register_model_view(CustomLink)
class CustomLinkView(generic.ObjectView):
    queryset = CustomLink.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.CustomLinkPanel(),
            panels.ObjectTypesPanel(title=_('Assigned Models')),
        ],
        right_panels=[
            TextCodePanel('link_text', title=_('Link Text')),
            TextCodePanel('link_url', title=_('Link URL')),
        ],
    )


@register_model_view(CustomLink, 'add', detail=False)
@register_model_view(CustomLink, 'edit')
class CustomLinkEditView(generic.ObjectEditView):
    queryset = CustomLink.objects.all()
    form = forms.CustomLinkForm


@register_model_view(CustomLink, 'delete')
class CustomLinkDeleteView(generic.ObjectDeleteView):
    queryset = CustomLink.objects.all()


@register_model_view(CustomLink, 'bulk_import', path='import', detail=False)
class CustomLinkBulkImportView(generic.BulkImportView):
    queryset = CustomLink.objects.all()
    model_form = forms.CustomLinkImportForm


@register_model_view(CustomLink, 'bulk_edit', path='edit', detail=False)
class CustomLinkBulkEditView(generic.BulkEditView):
    queryset = CustomLink.objects.all()
    filterset = filtersets.CustomLinkFilterSet
    table = tables.CustomLinkTable
    form = forms.CustomLinkBulkEditForm


@register_model_view(CustomLink, 'bulk_rename', path='rename', detail=False)
class CustomLinkBulkRenameView(generic.BulkRenameView):
    queryset = CustomLink.objects.all()
    filterset = filtersets.CustomLinkFilterSet


@register_model_view(CustomLink, 'bulk_delete', path='delete', detail=False)
class CustomLinkBulkDeleteView(generic.BulkDeleteView):
    queryset = CustomLink.objects.all()
    filterset = filtersets.CustomLinkFilterSet
    table = tables.CustomLinkTable


#
# Export templates
#

@register_model_view(ExportTemplate, 'list', path='', detail=False)
class ExportTemplateListView(generic.ObjectListView):
    queryset = ExportTemplate.objects.all()
    filterset = filtersets.ExportTemplateFilterSet
    filterset_form = forms.ExportTemplateFilterForm
    table = tables.ExportTemplateTable
    actions = (AddObject, BulkImport, BulkSync, BulkExport, BulkEdit, BulkRename, BulkDelete)


@register_model_view(ExportTemplate)
@method_decorator(never_cache, name='dispatch')
class ExportTemplateView(generic.ObjectView):
    queryset = ExportTemplate.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.ExportTemplatePanel(),
            TemplatePanel('core/inc/datafile_panel.html'),
        ],
        right_panels=[
            panels.ObjectTypesPanel(title=_('Assigned Models')),
            JSONPanel('environment_params', title=_('Environment Parameters')),
        ],
        bottom_panels=[
            TextCodePanel('template_code', title=_('Template'), show_sync_warning=True),
        ],
    )


@register_model_view(ExportTemplate, 'add', detail=False)
@register_model_view(ExportTemplate, 'edit')
class ExportTemplateEditView(generic.ObjectEditView):
    queryset = ExportTemplate.objects.all()
    form = forms.ExportTemplateForm


@register_model_view(ExportTemplate, 'delete')
class ExportTemplateDeleteView(generic.ObjectDeleteView):
    queryset = ExportTemplate.objects.all()


@register_model_view(ExportTemplate, 'bulk_import', path='import', detail=False)
class ExportTemplateBulkImportView(generic.BulkImportView):
    queryset = ExportTemplate.objects.all()
    model_form = forms.ExportTemplateImportForm


@register_model_view(ExportTemplate, 'bulk_edit', path='edit', detail=False)
class ExportTemplateBulkEditView(generic.BulkEditView):
    queryset = ExportTemplate.objects.all()
    filterset = filtersets.ExportTemplateFilterSet
    table = tables.ExportTemplateTable
    form = forms.ExportTemplateBulkEditForm


@register_model_view(ExportTemplate, 'bulk_rename', path='rename', detail=False)
class ExportTemplateBulkRenameView(generic.BulkRenameView):
    queryset = ExportTemplate.objects.all()
    filterset = filtersets.ExportTemplateFilterSet


@register_model_view(ExportTemplate, 'bulk_delete', path='delete', detail=False)
class ExportTemplateBulkDeleteView(generic.BulkDeleteView):
    queryset = ExportTemplate.objects.all()
    filterset = filtersets.ExportTemplateFilterSet
    table = tables.ExportTemplateTable


@register_model_view(ExportTemplate, 'bulk_sync', path='sync', detail=False)
class ExportTemplateBulkSyncDataView(generic.BulkSyncDataView):
    queryset = ExportTemplate.objects.all()


#
# Saved filters
#

@register_model_view(SavedFilter, 'list', path='', detail=False)
class SavedFilterListView(SharedObjectViewMixin, generic.ObjectListView):
    queryset = SavedFilter.objects.all()
    filterset = filtersets.SavedFilterFilterSet
    filterset_form = forms.SavedFilterFilterForm
    table = tables.SavedFilterTable


@register_model_view(SavedFilter)
class SavedFilterView(SharedObjectViewMixin, generic.ObjectView):
    queryset = SavedFilter.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.SavedFilterPanel(),
            panels.SavedFilterObjectTypesPanel(),
        ],
        right_panels=[
            JSONPanel('parameters', title=_('Parameters')),
        ],
    )


@register_model_view(SavedFilter, 'add', detail=False)
@register_model_view(SavedFilter, 'edit')
class SavedFilterEditView(SharedObjectViewMixin, generic.ObjectEditView):
    queryset = SavedFilter.objects.all()
    form = forms.SavedFilterForm

    def alter_object(self, obj, request, url_args, url_kwargs):
        if not obj.pk:
            obj.user = request.user
        return obj


@register_model_view(SavedFilter, 'delete')
class SavedFilterDeleteView(SharedObjectViewMixin, generic.ObjectDeleteView):
    queryset = SavedFilter.objects.all()


@register_model_view(SavedFilter, 'bulk_import', path='import', detail=False)
class SavedFilterBulkImportView(SharedObjectViewMixin, generic.BulkImportView):
    queryset = SavedFilter.objects.all()
    model_form = forms.SavedFilterImportForm


@register_model_view(SavedFilter, 'bulk_edit', path='edit', detail=False)
class SavedFilterBulkEditView(SharedObjectViewMixin, generic.BulkEditView):
    queryset = SavedFilter.objects.all()
    filterset = filtersets.SavedFilterFilterSet
    table = tables.SavedFilterTable
    form = forms.SavedFilterBulkEditForm


@register_model_view(SavedFilter, 'bulk_rename', path='rename', detail=False)
class SavedFilterBulkRenameView(generic.BulkRenameView):
    queryset = SavedFilter.objects.all()
    filterset = filtersets.SavedFilterFilterSet


@register_model_view(SavedFilter, 'bulk_delete', path='delete', detail=False)
class SavedFilterBulkDeleteView(SharedObjectViewMixin, generic.BulkDeleteView):
    queryset = SavedFilter.objects.all()
    filterset = filtersets.SavedFilterFilterSet
    table = tables.SavedFilterTable


#
# Table configs
#

@register_model_view(TableConfig, 'list', path='', detail=False)
class TableConfigListView(SharedObjectViewMixin, generic.ObjectListView):
    queryset = TableConfig.objects.all()
    filterset = filtersets.TableConfigFilterSet
    filterset_form = forms.TableConfigFilterForm
    table = tables.TableConfigTable
    actions = (BulkExport, BulkEdit, BulkRename, BulkDelete)


@register_model_view(TableConfig)
class TableConfigView(SharedObjectViewMixin, generic.ObjectView):
    queryset = TableConfig.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.TableConfigPanel(),
        ],
        right_panels=[
            panels.TableConfigColumnsPanel(),
            panels.TableConfigOrderingPanel(),
        ],
    )

    def get_extra_context(self, request, instance):
        table = instance.table_class([])
        return {
            'columns': dict(table.columns.items()),
        }


@register_model_view(TableConfig, 'add', detail=False)
@register_model_view(TableConfig, 'edit')
class TableConfigEditView(SharedObjectViewMixin, generic.ObjectEditView):
    queryset = TableConfig.objects.all()
    form = forms.TableConfigForm
    template_name = 'extras/tableconfig_edit.html'

    def get(self, request, *args, **kwargs):
        # The add view requires the object_type & table parameters from the source table view
        if not kwargs and not (request.GET.get('object_type') and request.GET.get('table')):
            messages.warning(request, _('Table configurations must be created from an object list view.'))
            return redirect('home')

        return super().get(request, *args, **kwargs)

    def alter_object(self, obj, request, url_args, url_kwargs):
        if not obj.pk:
            obj.user = request.user
        return obj


@register_model_view(TableConfig, 'delete')
class TableConfigDeleteView(SharedObjectViewMixin, generic.ObjectDeleteView):
    queryset = TableConfig.objects.all()


@register_model_view(TableConfig, 'bulk_edit', path='edit', detail=False)
class TableConfigBulkEditView(SharedObjectViewMixin, generic.BulkEditView):
    queryset = TableConfig.objects.all()
    filterset = filtersets.TableConfigFilterSet
    table = tables.TableConfigTable
    form = forms.TableConfigBulkEditForm


@register_model_view(TableConfig, 'bulk_rename', path='rename', detail=False)
class TableConfigBulkRenameView(generic.BulkRenameView):
    queryset = TableConfig.objects.all()
    filterset = filtersets.TableConfigFilterSet


@register_model_view(TableConfig, 'bulk_delete', path='delete', detail=False)
class TableConfigBulkDeleteView(SharedObjectViewMixin, generic.BulkDeleteView):
    queryset = TableConfig.objects.all()
    filterset = filtersets.TableConfigFilterSet
    table = tables.TableConfigTable


#
# Bookmarks
#

@register_model_view(Bookmark, 'add', detail=False)
class BookmarkCreateView(generic.ObjectEditView):
    form = forms.BookmarkForm

    def get_queryset(self, request):
        return Bookmark.objects.filter(user=request.user)

    def alter_object(self, obj, request, url_args, url_kwargs):
        obj.user = request.user
        return obj


@register_model_view(Bookmark, 'delete')
class BookmarkDeleteView(generic.ObjectDeleteView):

    def get_queryset(self, request):
        return Bookmark.objects.filter(user=request.user)


@register_model_view(Bookmark, 'bulk_delete', path='delete', detail=False)
class BookmarkBulkDeleteView(generic.BulkDeleteView):
    table = tables.BookmarkTable

    def get_queryset(self, request):
        return Bookmark.objects.filter(user=request.user)


#
# Notification groups
#

@register_model_view(NotificationGroup, 'list', path='', detail=False)
class NotificationGroupListView(generic.ObjectListView):
    queryset = NotificationGroup.objects.all()
    filterset = filtersets.NotificationGroupFilterSet
    filterset_form = forms.NotificationGroupFilterForm
    table = tables.NotificationGroupTable


@register_model_view(NotificationGroup)
class NotificationGroupView(generic.ObjectView):
    queryset = NotificationGroup.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.NotificationGroupPanel(),
        ],
        right_panels=[
            panels.NotificationGroupGroupsPanel(),
            panels.NotificationGroupUsersPanel(),
        ],
    )


@register_model_view(NotificationGroup, 'add', detail=False)
@register_model_view(NotificationGroup, 'edit')
class NotificationGroupEditView(generic.ObjectEditView):
    queryset = NotificationGroup.objects.all()
    form = forms.NotificationGroupForm


@register_model_view(NotificationGroup, 'delete')
class NotificationGroupDeleteView(generic.ObjectDeleteView):
    queryset = NotificationGroup.objects.all()


@register_model_view(NotificationGroup, 'bulk_import', path='import', detail=False)
class NotificationGroupBulkImportView(generic.BulkImportView):
    queryset = NotificationGroup.objects.all()
    model_form = forms.NotificationGroupImportForm


@register_model_view(NotificationGroup, 'bulk_edit', path='edit', detail=False)
class NotificationGroupBulkEditView(generic.BulkEditView):
    queryset = NotificationGroup.objects.all()
    filterset = filtersets.NotificationGroupFilterSet
    table = tables.NotificationGroupTable
    form = forms.NotificationGroupBulkEditForm


@register_model_view(NotificationGroup, 'bulk_rename', path='rename', detail=False)
class NotificationGroupBulkRenameView(generic.BulkRenameView):
    queryset = NotificationGroup.objects.all()
    filterset = filtersets.NotificationGroupFilterSet


@register_model_view(NotificationGroup, 'bulk_delete', path='delete', detail=False)
class NotificationGroupBulkDeleteView(generic.BulkDeleteView):
    queryset = NotificationGroup.objects.all()
    filterset = filtersets.NotificationGroupFilterSet
    table = tables.NotificationGroupTable


#
# Notifications
#

class NotificationsView(LoginRequiredMixin, View):
    """
    HTMX-only user-specific notifications list.
    """
    def get(self, request):
        return render(request, 'htmx/notifications.html', {
            'notifications': request.user.notifications.unread()[:10],
            'total_count': request.user.notifications.count(),
            'unread_count': request.user.notifications.unread().count(),
        })


@register_model_view(Notification, 'read')
class NotificationReadView(LoginRequiredMixin, View):
    """
    Mark the Notification read and redirect the user to its attached object.
    """

    def get(self, request, pk):
        # Mark the Notification as read
        notification = get_object_or_404(request.user.notifications, pk=pk)
        notification.read = timezone.now()
        notification.save()

        # Redirect to the object if it has a URL (deleted objects will not)
        if hasattr(notification.object, 'get_absolute_url'):
            return redirect(notification.object.get_absolute_url())

        return redirect('account:notifications')


@register_model_view(Notification, name='dismiss_all', path='dismiss-all', detail=False)
class NotificationDismissAllView(LoginRequiredMixin, View):
    """
    Convenience view to clear all *unread* notifications for the current user.
    """

    def get(self, request):
        request.user.notifications.unread().delete()
        if htmx_partial(request):
            # If a user is currently on the notification page, redirect there (full repaint)
            redirect_resp = htmx_maybe_redirect_current_page(request, 'account:notifications', preserve_query=True)
            if redirect_resp:
                return redirect_resp

            return render(request, 'htmx/notifications.html', {
                'notifications': request.user.notifications.unread()[:10],
                'total_count': request.user.notifications.count(),
                'unread_count': request.user.notifications.unread().count(),
            })
        return redirect('account:notifications')


@register_model_view(Notification, 'dismiss')
class NotificationDismissView(LoginRequiredMixin, View):
    """
    A convenience view which allows deleting notifications with one click.
    """

    def get(self, request, pk):
        notification = get_object_or_404(request.user.notifications, pk=pk)
        notification.delete()

        if htmx_partial(request):
            # If a user is currently on the notification page, redirect there (full repaint)
            redirect_resp = htmx_maybe_redirect_current_page(request, 'account:notifications', preserve_query=True)
            if redirect_resp:
                return redirect_resp

            return render(request, 'htmx/notifications.html', {
                'notifications': request.user.notifications.unread()[:10],
                'total_count': request.user.notifications.count(),
                'unread_count': request.user.notifications.unread().count(),
            })

        return redirect('account:notifications')


@register_model_view(Notification, 'delete')
class NotificationDeleteView(generic.ObjectDeleteView):

    def get_queryset(self, request):
        return Notification.objects.filter(user=request.user)


@register_model_view(Notification, 'bulk_delete', path='delete', detail=False)
class NotificationBulkDeleteView(generic.BulkDeleteView):
    table = tables.NotificationTable

    def get_queryset(self, request):
        return Notification.objects.filter(user=request.user)


#
# Subscriptions
#

@register_model_view(Subscription, 'add', detail=False)
class SubscriptionCreateView(generic.ObjectEditView):
    form = forms.SubscriptionForm

    def get_queryset(self, request):
        return Subscription.objects.filter(user=request.user)

    def alter_object(self, obj, request, url_args, url_kwargs):
        obj.user = request.user
        return obj


@register_model_view(Subscription, 'delete')
class SubscriptionDeleteView(generic.ObjectDeleteView):

    def get_queryset(self, request):
        return Subscription.objects.filter(user=request.user)


@register_model_view(Subscription, 'bulk_delete', path='delete', detail=False)
class SubscriptionBulkDeleteView(generic.BulkDeleteView):
    table = tables.SubscriptionTable

    def get_queryset(self, request):
        return Subscription.objects.filter(user=request.user)


#
# Webhooks
#

@register_model_view(Webhook, 'list', path='', detail=False)
class WebhookListView(generic.ObjectListView):
    queryset = Webhook.objects.all()
    filterset = filtersets.WebhookFilterSet
    filterset_form = forms.WebhookFilterForm
    table = tables.WebhookTable


@register_model_view(Webhook)
class WebhookView(generic.ObjectView):
    queryset = Webhook.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.WebhookPanel(),
            panels.WebhookHTTPPanel(),
            panels.WebhookSSLPanel(),
        ],
        right_panels=[
            TextCodePanel('additional_headers', title=_('Additional Headers')),
            TextCodePanel('body_template', title=_('Body Template')),
            panels.CustomFieldsPanel(),
            panels.TagsPanel(),
        ],
    )


@register_model_view(Webhook, 'add', detail=False)
@register_model_view(Webhook, 'edit')
class WebhookEditView(generic.ObjectEditView):
    queryset = Webhook.objects.all()
    form = forms.WebhookForm


@register_model_view(Webhook, 'delete')
class WebhookDeleteView(generic.ObjectDeleteView):
    queryset = Webhook.objects.all()


@register_model_view(Webhook, 'bulk_import', path='import', detail=False)
class WebhookBulkImportView(generic.BulkImportView):
    queryset = Webhook.objects.all()
    model_form = forms.WebhookImportForm


@register_model_view(Webhook, 'bulk_edit', path='edit', detail=False)
class WebhookBulkEditView(generic.BulkEditView):
    queryset = Webhook.objects.all()
    filterset = filtersets.WebhookFilterSet
    table = tables.WebhookTable
    form = forms.WebhookBulkEditForm


@register_model_view(Webhook, 'bulk_rename', path='rename', detail=False)
class WebhookBulkRenameView(generic.BulkRenameView):
    queryset = Webhook.objects.all()
    filterset = filtersets.WebhookFilterSet


@register_model_view(Webhook, 'bulk_delete', path='delete', detail=False)
class WebhookBulkDeleteView(generic.BulkDeleteView):
    queryset = Webhook.objects.all()
    filterset = filtersets.WebhookFilterSet
    table = tables.WebhookTable


#
# Event Rules
#

@register_model_view(EventRule, 'list', path='', detail=False)
class EventRuleListView(generic.ObjectListView):
    queryset = EventRule.objects.all()
    filterset = filtersets.EventRuleFilterSet
    filterset_form = forms.EventRuleFilterForm
    table = tables.EventRuleTable


@register_model_view(EventRule)
class EventRuleView(generic.ObjectView):
    queryset = EventRule.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.EventRulePanel(),
            panels.ObjectTypesPanel(),
            panels.EventRuleEventTypesPanel(),
        ],
        right_panels=[
            JSONPanel('conditions', title=_('Conditions')),
            panels.EventRuleActionPanel(),
            panels.CustomFieldsPanel(),
            panels.TagsPanel(),
        ],
    )


@register_model_view(EventRule, 'add', detail=False)
@register_model_view(EventRule, 'edit')
class EventRuleEditView(generic.ObjectEditView):
    queryset = EventRule.objects.all()
    form = forms.EventRuleForm


@register_model_view(EventRule, 'delete')
class EventRuleDeleteView(generic.ObjectDeleteView):
    queryset = EventRule.objects.all()


@register_model_view(EventRule, 'bulk_import', path='import', detail=False)
class EventRuleBulkImportView(generic.BulkImportView):
    queryset = EventRule.objects.all()
    model_form = forms.EventRuleImportForm


@register_model_view(EventRule, 'bulk_edit', path='edit', detail=False)
class EventRuleBulkEditView(generic.BulkEditView):
    queryset = EventRule.objects.all()
    filterset = filtersets.EventRuleFilterSet
    table = tables.EventRuleTable
    form = forms.EventRuleBulkEditForm


@register_model_view(EventRule, 'bulk_rename', path='rename', detail=False)
class EventRuleBulkRenameView(generic.BulkRenameView):
    queryset = EventRule.objects.all()
    filterset = filtersets.EventRuleFilterSet


@register_model_view(EventRule, 'bulk_delete', path='delete', detail=False)
class EventRuleBulkDeleteView(generic.BulkDeleteView):
    queryset = EventRule.objects.all()
    filterset = filtersets.EventRuleFilterSet
    table = tables.EventRuleTable


#
# Tags
#

@register_model_view(Tag, 'list', path='', detail=False)
class TagListView(generic.ObjectListView):
    queryset = Tag.objects.annotate(
        items=count_related(TaggedItem, 'tag')
    )
    filterset = filtersets.TagFilterSet
    filterset_form = forms.TagFilterForm
    table = tables.TagTable


@register_model_view(Tag)
class TagView(generic.ObjectView):
    queryset = Tag.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.TagPanel(),
        ],
        right_panels=[
            panels.TagObjectTypesPanel(),
            panels.TagItemTypesPanel(),
        ],
        bottom_panels=[
            ContextTablePanel('taggeditem_table', title=_('Tagged Objects')),
        ],
    )

    def get_extra_context(self, request, instance):
        tagged_items = TaggedItem.objects.filter(tag=instance)
        taggeditem_table = tables.TaggedItemTable(
            data=tagged_items,
            orderable=False
        )
        taggeditem_table.configure(request)

        object_types = [
            {
                'content_type': ContentType.objects.get(pk=ti['content_type']),
                'item_count': ti['item_count']
            } for ti in tagged_items.values('content_type').annotate(item_count=Count('pk'))
        ]

        return {
            'taggeditem_table': taggeditem_table,
            'tagged_item_count': tagged_items.count(),
            'object_types': object_types,
        }


@register_model_view(Tag, 'add', detail=False)
@register_model_view(Tag, 'edit')
class TagEditView(generic.ObjectEditView):
    queryset = Tag.objects.all()
    form = forms.TagForm


@register_model_view(Tag, 'delete')
class TagDeleteView(generic.ObjectDeleteView):
    queryset = Tag.objects.all()


@register_model_view(Tag, 'bulk_import', path='import', detail=False)
class TagBulkImportView(generic.BulkImportView):
    queryset = Tag.objects.all()
    model_form = forms.TagImportForm


@register_model_view(Tag, 'bulk_edit', path='edit', detail=False)
class TagBulkEditView(generic.BulkEditView):
    queryset = Tag.objects.annotate(
        items=count_related(TaggedItem, 'tag')
    )
    table = tables.TagTable
    form = forms.TagBulkEditForm


@register_model_view(Tag, 'bulk_rename', path='rename', detail=False)
class TagBulkRenameView(generic.BulkRenameView):
    queryset = Tag.objects.all()


@register_model_view(Tag, 'bulk_delete', path='delete', detail=False)
class TagBulkDeleteView(generic.BulkDeleteView):
    queryset = Tag.objects.annotate(
        items=count_related(TaggedItem, 'tag')
    )
    table = tables.TagTable


#
# Config context profiles
#

@register_model_view(ConfigContextProfile, 'list', path='', detail=False)
class ConfigContextProfileListView(generic.ObjectListView):
    queryset = ConfigContextProfile.objects.all()
    filterset = filtersets.ConfigContextProfileFilterSet
    filterset_form = forms.ConfigContextProfileFilterForm
    table = tables.ConfigContextProfileTable
    actions = (AddObject, BulkSync, BulkEdit, BulkRename, BulkDelete)


@register_model_view(ConfigContextProfile)
@method_decorator(never_cache, name='dispatch')
class ConfigContextProfileView(generic.ObjectView):
    queryset = ConfigContextProfile.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.ConfigContextProfilePanel(),
            TemplatePanel('core/inc/datafile_panel.html'),
            panels.CustomFieldsPanel(),
            panels.TagsPanel(),
            CommentsPanel(),
        ],
        right_panels=[
            JSONPanel('schema', title=_('JSON Schema')),
        ],
    )


@register_model_view(ConfigContextProfile, 'add', detail=False)
@register_model_view(ConfigContextProfile, 'edit')
class ConfigContextProfileEditView(generic.ObjectEditView):
    queryset = ConfigContextProfile.objects.all()
    form = forms.ConfigContextProfileForm


@register_model_view(ConfigContextProfile, 'delete')
class ConfigContextProfileDeleteView(generic.ObjectDeleteView):
    queryset = ConfigContextProfile.objects.all()


@register_model_view(ConfigContextProfile, 'bulk_import', path='import', detail=False)
class ConfigContextProfileBulkImportView(generic.BulkImportView):
    queryset = ConfigContextProfile.objects.all()
    model_form = forms.ConfigContextProfileImportForm


@register_model_view(ConfigContextProfile, 'bulk_edit', path='edit', detail=False)
class ConfigContextProfileBulkEditView(generic.BulkEditView):
    queryset = ConfigContextProfile.objects.all()
    filterset = filtersets.ConfigContextProfileFilterSet
    table = tables.ConfigContextProfileTable
    form = forms.ConfigContextProfileBulkEditForm


@register_model_view(ConfigContextProfile, 'bulk_rename', path='rename', detail=False)
class ConfigContextProfileBulkRenameView(generic.BulkRenameView):
    queryset = ConfigContextProfile.objects.all()
    filterset = filtersets.ConfigContextProfileFilterSet


@register_model_view(ConfigContextProfile, 'bulk_delete', path='delete', detail=False)
class ConfigContextProfileBulkDeleteView(generic.BulkDeleteView):
    queryset = ConfigContextProfile.objects.all()
    filterset = filtersets.ConfigContextProfileFilterSet
    table = tables.ConfigContextProfileTable


@register_model_view(ConfigContextProfile, 'bulk_sync', path='sync', detail=False)
class ConfigContextProfileBulkSyncDataView(generic.BulkSyncDataView):
    queryset = ConfigContextProfile.objects.all()


#
# Config contexts
#

@register_model_view(ConfigContext, 'list', path='', detail=False)
class ConfigContextListView(generic.ObjectListView):
    queryset = ConfigContext.objects.all()
    filterset = filtersets.ConfigContextFilterSet
    filterset_form = forms.ConfigContextFilterForm
    table = tables.ConfigContextTable
    actions = (AddObject, BulkSync, BulkEdit, BulkRename, BulkDelete)


@register_model_view(ConfigContext)
@method_decorator(never_cache, name='dispatch')
class ConfigContextView(generic.ObjectView):
    queryset = ConfigContext.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.ConfigContextPanel(),
            TemplatePanel('core/inc/datafile_panel.html'),
            panels.ConfigContextAssignmentPanel(),
        ],
        right_panels=[
            TemplatePanel('extras/panels/configcontext_data.html'),
        ],
    )

    def get_extra_context(self, request, instance):
        # Gather assigned objects for parsing in the template
        assigned_objects = (
            ('Regions', instance.regions.all),
            ('Site Groups', instance.site_groups.all),
            ('Sites', instance.sites.all),
            ('Locations', instance.locations.all),
            ('Device Types', instance.device_types.all),
            ('Roles', instance.roles.all),
            ('Platforms', instance.platforms.all),
            ('Cluster Types', instance.cluster_types.all),
            ('Cluster Groups', instance.cluster_groups.all),
            ('Clusters', instance.clusters.all),
            ('Tenant Groups', instance.tenant_groups.all),
            ('Tenants', instance.tenants.all),
            ('Tags', instance.tags.all),
        )

        # Determine user's preferred output format
        if request.GET.get('format') in ['json', 'yaml']:
            format = request.GET.get('format')
            if request.user.is_authenticated:
                request.user.config.set('data_format', format, commit=True)
        elif request.user.is_authenticated:
            format = request.user.config.get('data_format', 'json')
        else:
            format = 'json'

        return {
            'assigned_objects': assigned_objects,
            'format': format,
        }


@register_model_view(ConfigContext, 'add', detail=False)
@register_model_view(ConfigContext, 'edit')
class ConfigContextEditView(generic.ObjectEditView):
    queryset = ConfigContext.objects.all()
    form = forms.ConfigContextForm


@register_model_view(ConfigContext, 'delete')
class ConfigContextDeleteView(generic.ObjectDeleteView):
    queryset = ConfigContext.objects.all()


@register_model_view(ConfigContext, 'bulk_edit', path='edit', detail=False)
class ConfigContextBulkEditView(generic.BulkEditView):
    queryset = ConfigContext.objects.all()
    filterset = filtersets.ConfigContextFilterSet
    table = tables.ConfigContextTable
    form = forms.ConfigContextBulkEditForm


@register_model_view(ConfigContext, 'bulk_rename', path='rename', detail=False)
class ConfigContextBulkRenameView(generic.BulkRenameView):
    queryset = ConfigContext.objects.all()
    filterset = filtersets.ConfigContextFilterSet


@register_model_view(ConfigContext, 'bulk_delete', path='delete', detail=False)
class ConfigContextBulkDeleteView(generic.BulkDeleteView):
    queryset = ConfigContext.objects.all()
    filterset = filtersets.ConfigContextFilterSet
    table = tables.ConfigContextTable


@register_model_view(ConfigContext, 'bulk_sync', path='sync', detail=False)
class ConfigContextBulkSyncDataView(generic.BulkSyncDataView):
    queryset = ConfigContext.objects.all()


@method_decorator(never_cache, name='dispatch')
class ObjectConfigContextView(generic.ObjectView):
    base_template = None
    template_name = 'extras/object_configcontext.html'

    def get_extra_context(self, request, instance):
        source_contexts = ConfigContext.objects.restrict(request.user, 'view').get_for_object(instance)

        # Determine user's preferred output format
        if request.GET.get('format') in ['json', 'yaml']:
            format = request.GET.get('format')
            if request.user.is_authenticated:
                request.user.config.set('data_format', format, commit=True)
        elif request.user.is_authenticated:
            format = request.user.config.get('data_format', 'json')
        else:
            format = 'json'

        return {
            'rendered_context': instance.get_config_context(),
            'source_contexts': source_contexts,
            'format': format,
            'base_template': self.base_template,
        }


#
# Config templates
#

@register_model_view(ConfigTemplate, 'list', path='', detail=False)
class ConfigTemplateListView(generic.ObjectListView):
    queryset = ConfigTemplate.objects.annotate(
        device_count=count_related(Device, 'config_template'),
        vm_count=count_related(VirtualMachine, 'config_template'),
        role_count=count_related(DeviceRole, 'config_template'),
        platform_count=count_related(Platform, 'config_template'),
    )
    filterset = filtersets.ConfigTemplateFilterSet
    filterset_form = forms.ConfigTemplateFilterForm
    table = tables.ConfigTemplateTable
    actions = (AddObject, BulkImport, BulkExport, BulkSync, BulkEdit, BulkRename, BulkDelete)


@register_model_view(ConfigTemplate)
@method_decorator(never_cache, name='dispatch')
class ConfigTemplateView(generic.ObjectView):
    queryset = ConfigTemplate.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.ConfigTemplatePanel(),
            panels.TagsPanel(),
        ],
        right_panels=[
            JSONPanel('environment_params', title=_('Environment Parameters')),
        ],
        bottom_panels=[
            TextCodePanel('template_code', title=_('Template'), show_sync_warning=True),
        ],
    )


@register_model_view(ConfigTemplate, 'add', detail=False)
@register_model_view(ConfigTemplate, 'edit')
class ConfigTemplateEditView(generic.ObjectEditView):
    queryset = ConfigTemplate.objects.all()
    form = forms.ConfigTemplateForm


@register_model_view(ConfigTemplate, 'delete')
class ConfigTemplateDeleteView(generic.ObjectDeleteView):
    queryset = ConfigTemplate.objects.all()


@register_model_view(ConfigTemplate, 'bulk_import', path='import', detail=False)
class ConfigTemplateBulkImportView(generic.BulkImportView):
    queryset = ConfigTemplate.objects.all()
    model_form = forms.ConfigTemplateImportForm


@register_model_view(ConfigTemplate, 'bulk_edit', path='edit', detail=False)
class ConfigTemplateBulkEditView(generic.BulkEditView):
    queryset = ConfigTemplate.objects.all()
    filterset = filtersets.ConfigTemplateFilterSet
    table = tables.ConfigTemplateTable
    form = forms.ConfigTemplateBulkEditForm


@register_model_view(ConfigTemplate, 'bulk_rename', path='rename', detail=False)
class ConfigTemplateBulkRenameView(generic.BulkRenameView):
    queryset = ConfigTemplate.objects.all()
    filterset = filtersets.ConfigTemplateFilterSet


@register_model_view(ConfigTemplate, 'bulk_delete', path='delete', detail=False)
class ConfigTemplateBulkDeleteView(generic.BulkDeleteView):
    queryset = ConfigTemplate.objects.all()
    filterset = filtersets.ConfigTemplateFilterSet
    table = tables.ConfigTemplateTable


@register_model_view(ConfigTemplate, 'bulk_sync', path='sync', detail=False)
class ConfigTemplateBulkSyncDataView(generic.BulkSyncDataView):
    queryset = ConfigTemplate.objects.all()


@method_decorator(never_cache, name='dispatch')
class ObjectRenderConfigView(generic.ObjectView):
    base_template = None
    template_name = 'extras/object_render_config.html'

    def get(self, request, **kwargs):
        instance = self.get_object(**kwargs)
        context = self.get_extra_context(request, instance)

        # If a direct export has been requested, return the rendered template content as a
        # downloadable file.
        if request.GET.get('export'):
            content = context['rendered_config'] or context['error_message']
            response = HttpResponse(content, content_type='text')
            filename = f"{instance.name or 'config'}.txt"
            response['Content-Disposition'] = content_disposition_header(as_attachment=True, filename=filename)
            return response

        return render(
            request,
            self.get_template_name(),
            {
                'object': instance,
                'tab': self.tab,
                **context,
            },
        )

    def get_extra_context_data(self, request, instance):
        return {
            f'{instance._meta.model_name}': instance,
        }

    def get_extra_context(self, request, instance):
        # Compile context data
        context_data = instance.get_config_context()
        context_data.update(self.get_extra_context_data(request, instance))

        # Check for an optional config_template_id override in the query params
        config_template = None
        error_message = ''
        if config_template_id := request.GET.get('config_template_id'):
            try:
                config_template = ConfigTemplate.objects.restrict(request.user, 'view').get(pk=config_template_id)
            except (ConfigTemplate.DoesNotExist, ValueError):
                error_message = _("Config template with ID {id} not found.").format(id=config_template_id)
        else:
            config_template = instance.get_config_template()

        # Render the config template
        rendered_config = None
        if config_template:
            try:
                rendered_config = config_template.render(context=context_data)
            except Exception as e:
                error_message = config_template.format_render_error(e)

        return {
            'base_template': self.base_template,
            'config_template': config_template,
            'context_data': context_data,
            'rendered_config': rendered_config,
            'error_message': error_message,
        }


#
# Image attachments
#

@register_model_view(ImageAttachment, 'list', path='', detail=False)
class ImageAttachmentListView(generic.ObjectListView):
    queryset = ImageAttachment.objects.all()
    filterset = filtersets.ImageAttachmentFilterSet
    filterset_form = forms.ImageAttachmentFilterForm
    table = tables.ImageAttachmentTable
    actions = (BulkExport, BulkEdit, BulkRename, BulkDelete)


@register_model_view(ImageAttachment)
class ImageAttachmentView(generic.ObjectView):
    queryset = ImageAttachment.objects.all()
    template_name = 'generic/object.html'
    layout = layout.SimpleLayout(
        left_panels=[
            panels.ImageAttachmentPanel(),
        ],
        right_panels=[
            panels.ImageAttachmentFilePanel(),
        ],
        bottom_panels=[
            panels.ImageAttachmentImagePanel(),
        ],
    )


@register_model_view(ImageAttachment, 'add', detail=False)
@register_model_view(ImageAttachment, 'edit')
class ImageAttachmentEditView(generic.ObjectEditView):
    queryset = ImageAttachment.objects.all()
    form = forms.ImageAttachmentForm

    def alter_object(self, instance, request, args, kwargs):
        if not instance.pk:
            # Assign the parent object based on URL kwargs
            object_type = get_object_or_404(ContentType, pk=request.GET.get('object_type'))
            instance.parent = get_object_or_404(object_type.model_class(), pk=request.GET.get('object_id'))
        return instance

    def get_extra_addanother_params(self, request):
        return {
            'object_type': request.GET.get('object_type'),
            'object_id': request.GET.get('object_id'),
        }


@register_model_view(ImageAttachment, 'delete')
class ImageAttachmentDeleteView(generic.ObjectDeleteView):
    queryset = ImageAttachment.objects.all()


@register_model_view(ImageAttachment, 'bulk_edit', path='edit', detail=False)
class ImageAttachmentBulkEditView(generic.BulkEditView):
    queryset = ImageAttachment.objects.all()
    filterset = filtersets.ImageAttachmentFilterSet
    table = tables.ImageAttachmentTable
    form = forms.ImageAttachmentBulkEditForm


@register_model_view(ImageAttachment, 'bulk_rename', path='rename', detail=False)
class ImageAttachmentBulkRenameView(generic.BulkRenameView):
    queryset = ImageAttachment.objects.all()
    filterset = filtersets.ImageAttachmentFilterSet


@register_model_view(ImageAttachment, 'bulk_delete', path='delete', detail=False)
class ImageAttachmentBulkDeleteView(generic.BulkDeleteView):
    queryset = ImageAttachment.objects.all()
    filterset = filtersets.ImageAttachmentFilterSet
    table = tables.ImageAttachmentTable


#
# Journal entries
#

@register_model_view(JournalEntry, 'list', path='', detail=False)
class JournalEntryListView(generic.ObjectListView):
    queryset = JournalEntry.objects.all()
    filterset = filtersets.JournalEntryFilterSet
    filterset_form = forms.JournalEntryFilterForm
    table = tables.JournalEntryTable
    actions = (BulkImport, BulkEdit, BulkDelete)


@register_model_view(JournalEntry)
class JournalEntryView(generic.ObjectView):
    queryset = JournalEntry.objects.all()
    layout = layout.SimpleLayout(
        left_panels=[
            panels.JournalEntryPanel(),
            panels.CustomFieldsPanel(),
            panels.TagsPanel(),
        ],
        right_panels=[
            CommentsPanel(),
        ],
    )


@register_model_view(JournalEntry, 'add', detail=False)
@register_model_view(JournalEntry, 'edit')
class JournalEntryEditView(generic.ObjectEditView):
    queryset = JournalEntry.objects.all()
    form = forms.JournalEntryForm

    def alter_object(self, obj, request, args, kwargs):
        if not obj.pk:
            obj.created_by = request.user
        return obj

    def get_return_url(self, request, instance):
        if not instance.assigned_object:
            return reverse('extras:journalentry_list')
        obj = instance.assigned_object
        return get_action_url(obj, action='journal', kwargs={'pk': obj.pk})


@register_model_view(JournalEntry, 'delete')
class JournalEntryDeleteView(generic.ObjectDeleteView):
    queryset = JournalEntry.objects.all()

    def get_return_url(self, request, instance):
        obj = instance.assigned_object
        return get_action_url(obj, action='journal', kwargs={'pk': obj.pk})


@register_model_view(JournalEntry, 'bulk_import', path='import', detail=False)
class JournalEntryBulkImportView(generic.BulkImportView):
    queryset = JournalEntry.objects.all()
    model_form = forms.JournalEntryImportForm


@register_model_view(JournalEntry, 'bulk_edit', path='edit', detail=False)
class JournalEntryBulkEditView(generic.BulkEditView):
    queryset = JournalEntry.objects.all()
    filterset = filtersets.JournalEntryFilterSet
    table = tables.JournalEntryTable
    form = forms.JournalEntryBulkEditForm


@register_model_view(JournalEntry, 'bulk_delete', path='delete', detail=False)
class JournalEntryBulkDeleteView(generic.BulkDeleteView):
    queryset = JournalEntry.objects.all()
    filterset = filtersets.JournalEntryFilterSet
    table = tables.JournalEntryTable


#
# Dashboard & widgets
#

class DashboardResetView(LoginRequiredMixin, View):
    template_name = 'extras/dashboard/reset.html'

    def get(self, request):
        get_object_or_404(Dashboard.objects.all(), user=request.user)
        form = ConfirmationForm()

        return render(request, self.template_name, {
            'form': form,
            'return_url': reverse('home'),
        })

    def post(self, request):
        dashboard = get_object_or_404(Dashboard.objects.all(), user=request.user)
        form = ConfirmationForm(request.POST)

        if form.is_valid():
            dashboard.delete()
            messages.success(request, _("Your dashboard has been reset."))
            return redirect(reverse('home'))

        return render(request, self.template_name, {
            'form': form,
            'return_url': reverse('home'),
        })


class DashboardWidgetAddView(LoginRequiredMixin, View):
    template_name = 'extras/dashboard/widget_add.html'

    def get(self, request):
        if not request.htmx:
            return redirect('home')

        initial = {
            'widget_class': request.GET.get('widget_class') or 'extras.NoteWidget',
        }
        widget_form = DashboardWidgetAddForm(initial=initial)
        widget_name = get_field_value(widget_form, 'widget_class')
        widget_class = get_widget_class(widget_name)
        config_form = widget_class.ConfigForm(initial=widget_class.default_config, prefix='config')

        return render(request, self.template_name, {
            'widget_class': widget_class,
            'widget_form': widget_form,
            'config_form': config_form,
        })

    def post(self, request):
        widget_form = DashboardWidgetAddForm(request.POST)
        config_form = None
        widget_class = None

        if widget_form.is_valid():
            widget_class = get_widget_class(widget_form.cleaned_data['widget_class'])
            config_form = widget_class.ConfigForm(request.POST, prefix='config')

            if config_form.is_valid():
                data = widget_form.cleaned_data
                data.pop('widget_class')
                data['config'] = config_form.cleaned_data
                widget = widget_class(**data)
                request.user.dashboard.add_widget(widget)
                request.user.dashboard.save()
                messages.success(request, _('Added widget: ') + str(widget.id))

                return HttpResponse(headers={
                    'HX-Redirect': reverse('home'),
                })

        return render(request, self.template_name, {
            'widget_class': widget_class,
            'widget_form': widget_form,
            'config_form': config_form,
        })


class DashboardWidgetConfigView(LoginRequiredMixin, View):
    template_name = 'extras/dashboard/widget_config.html'

    def get(self, request, id):
        if not request.htmx:
            return redirect('home')

        widget = request.user.dashboard.get_widget(id)
        widget_form = DashboardWidgetForm(initial=widget.form_data)
        config_form = widget.ConfigForm(initial=widget.form_data.get('config'), prefix='config')

        return render(request, self.template_name, {
            'widget_class': widget.__class__,
            'widget_form': widget_form,
            'config_form': config_form,
            'form_url': reverse('extras:dashboardwidget_config', kwargs={'id': id})
        })

    def post(self, request, id):
        widget = request.user.dashboard.get_widget(id)
        widget_form = DashboardWidgetForm(request.POST)
        config_form = widget.ConfigForm(request.POST, prefix='config')

        if widget_form.is_valid() and config_form.is_valid():
            data = widget_form.cleaned_data
            data['config'] = config_form.cleaned_data
            request.user.dashboard.config[str(id)].update(data)
            request.user.dashboard.save()
            messages.success(request, _('Updated widget: ') + str(widget.id))

            return HttpResponse(headers={
                'HX-Redirect': reverse('home'),
            })

        return render(request, self.template_name, {
            'widget_form': widget_form,
            'config_form': config_form,
            'form_url': reverse('extras:dashboardwidget_config', kwargs={'id': id})
        })


class DashboardWidgetDeleteView(LoginRequiredMixin, View):
    template_name = 'generic/object_delete.html'

    def get(self, request, id):
        if not request.htmx:
            return redirect('home')

        widget = request.user.dashboard.get_widget(id)
        form = ConfirmationForm(initial=request.GET)

        return render(request, 'htmx/delete_form.html', {
            'object_type': widget.__class__.__name__,
            'object': widget,
            'form': form,
            'form_url': reverse('extras:dashboardwidget_delete', kwargs={'id': id})
        })

    def post(self, request, id):
        form = ConfirmationForm(request.POST)

        if form.is_valid():
            request.user.dashboard.delete_widget(id)
            request.user.dashboard.save()
            messages.success(request, _('Deleted widget: ') + str(id))
        else:
            messages.error(request, _('Error deleting widget: ') + str(form.errors[0]))

        return redirect(reverse('home'))


#
# Scripts
#

@register_model_view(ScriptModule, 'edit')
class ScriptModuleCreateView(generic.ObjectEditView):
    queryset = ScriptModule.objects.all()
    form = forms.ScriptFileForm
    default_return_url = 'extras:script_list'

    def alter_object(self, obj, *args, **kwargs):
        obj.file_root = ManagedFileRootPathChoices.SCRIPTS
        return obj


@register_model_view(ScriptModule, 'delete')
class ScriptModuleDeleteView(generic.ObjectDeleteView):
    queryset = ScriptModule.objects.all()
    default_return_url = 'extras:script_list'


class ScriptListView(ContentTypePermissionRequiredMixin, View):

    def get_required_permission(self):
        return 'extras.view_script'

    def get(self, request):
        available_scripts = Script.objects.restrict(request.user)
        module_ids = {s.module_id for s in available_scripts}
        script_modules = ScriptModule.objects.restrict(request.user).filter(pk__in=module_ids).prefetch_related(
            'data_source', 'data_file',
        )

        context = {
            'model': ScriptModule,
            'script_modules': script_modules,
            'available_scripts': available_scripts,
        }

        # Use partial template for dashboard widgets
        template_name = 'extras/script_list.html'
        if request.GET.get('embedded'):
            template_name = 'extras/inc/script_list_content.html'
            context['embedded'] = True

        return render(request, template_name, context)


class BaseScriptView(generic.ObjectView):
    queryset = Script.objects.all()

    def get_object(self, **kwargs):
        if pk := kwargs.get('pk', False):
            return get_object_or_404(self.queryset, pk=pk)
        if (module := kwargs.get('module')) and (name := kwargs.get('name', False)):
            return get_object_or_404(self.queryset, module__file_path=f'{module}.py', name=name)
        raise Http404

    def _get_script_class(self, script):
        """
        Return an instance of the Script's Python class
        """
        if script_class := script.python_class:
            return script_class()
        return None


class ScriptView(BaseScriptView):

    def get(self, request, **kwargs):
        script = self.get_object(**kwargs)
        script_class = self._get_script_class(script)
        if not script_class:
            return render(request, 'extras/script.html', {
                'object': script,
                'script': script,
            })

        form = script_class.as_form(initial=normalize_querydict(request.GET))

        return render(request, 'extras/script.html', {
            'object': script,
            'script': script,
            'script_class': script_class,
            'form': form,
            'job_count': script.jobs.count(),
        })

    def post(self, request, **kwargs):
        script = self.get_object(**kwargs)

        if not request.user.has_perm('extras.run_script', obj=script):
            return HttpResponseForbidden()

        script_class = self._get_script_class(script)
        if not script_class:
            return render(request, 'extras/script.html', {
                'object': script,
                'script': script,
            })

        # Populate missing variables with their default values, if defined
        post_data = request.POST.copy()
        for name, var in script_class._get_vars().items():
            if name not in post_data and (initial := var.field_attrs.get('initial')) is not None:
                post_data[name] = initial

        form = script_class.as_form(post_data, request.FILES)

        # Allow execution only if RQ worker process is running
        if not any_workers_for_queue('default'):
            messages.error(request, _("Unable to run script: RQ worker process not running."))
        elif form.is_valid():
            ScriptJob = import_string("extras.jobs.ScriptJob")
            job = ScriptJob.enqueue(
                instance=script,
                user=request.user,
                schedule_at=form.cleaned_data.pop('_schedule_at'),
                interval=form.cleaned_data.pop('_interval'),
                notifications=form.cleaned_data.pop('_notifications'),
                data=form.cleaned_data,
                request=copy_safe_request(request),
                job_timeout=script.python_class.job_timeout,
                commit=form.cleaned_data.pop('_commit'),
            )

            return redirect('extras:script_result', job_pk=job.pk)
        else:
            fieldset_fields = {field for _, fields in script_class.get_fieldsets() for field in fields}
            hidden_errors = {
                field: errors for field, errors in form.errors.items()
                if field not in fieldset_fields
            }
            if hidden_errors:
                error_msg = '; '.join(f"{field}: {', '.join(errors)}" for field, errors in hidden_errors.items())
                messages.error(request, error_msg)

        return render(request, 'extras/script.html', {
            'object': script,
            'script': script,
            'script_class': script.python_class(),
            'form': form,
            'job_count': script.jobs.count(),
        })


class ScriptSourceView(BaseScriptView):
    queryset = Script.objects.all()

    def get(self, request, **kwargs):
        script = self.get_object(**kwargs)
        script_class = self._get_script_class(script)

        return render(request, 'extras/script/source.html', {
            'script': script,
            'script_class': script_class,
            'job_count': script.jobs.count(),
            'tab': 'source',
        })


class ScriptJobsView(BaseScriptView):
    queryset = Script.objects.all()

    def get(self, request, **kwargs):
        script = self.get_object(**kwargs)

        jobs_table = ScriptJobTable(data=script.jobs.all(), orderable=False)
        jobs_table.configure(request)

        return render(request, 'extras/script/jobs.html', {
            'script': script,
            'table': jobs_table,
            'job_count': script.jobs.count(),
            'tab': 'jobs',
        })


class ScriptResultView(TableMixin, generic.ObjectView):
    queryset = Job.objects.all()

    def get_required_permission(self):
        return 'extras.view_script'

    def get_queryset(self, request):
        return Job.objects.restrict(request.user, 'view')

    def get_table(self, job, request, bulk_actions=True):
        data = []
        tests = None
        table = None
        index = 0

        try:
            log_threshold = LOG_LEVEL_RANK[request.GET.get('log_threshold', LogLevelChoices.LOG_INFO)]
        except KeyError:
            log_threshold = LOG_LEVEL_RANK[LogLevelChoices.LOG_INFO]
        if job.data:
            if 'log' in job.data:
                if 'tests' in job.data:
                    tests = job.data['tests']

                for log in job.data['log']:
                    log_level = LOG_LEVEL_RANK.get(log.get('status'), LogLevelChoices.LOG_INFO)
                    if log_level >= log_threshold:
                        index += 1
                        result = {
                            'index': index,
                            'time': datetime.fromisoformat(log.get('time')),
                            'status': log.get('status'),
                            'message': log.get('message'),
                            'object': log.get('obj'),
                            'url': log.get('url'),
                        }
                        data.append(result)

                table = ScriptResultsTable(data)
                table.configure(request)
            else:
                # for legacy reports
                tests = job.data

        if tests:
            for method, test_data in tests.items():
                if 'log' in test_data:
                    for time, status, obj, url, message in test_data['log']:
                        log_level = LOG_LEVEL_RANK.get(status, LogLevelChoices.LOG_INFO)
                        if log_level >= log_threshold:
                            index += 1
                            result = {
                                'index': index,
                                'method': method,
                                'time': time,
                                'status': status,
                                'object': obj,
                                'url': url,
                                'message': message,
                            }
                            data.append(result)

            table = ReportResultsTable(data)
            table.configure(request)

        return table

    def get(self, request, **kwargs):
        table = None
        job = get_object_or_404(self.queryset, pk=kwargs.get('job_pk'))

        # If a direct export output has been requested, return the job data content as a
        # downloadable file.
        if job.completed and request.GET.get('export') == 'output':
            content = (job.data.get("output") or "").encode()
            response = HttpResponse(content, content_type='text')
            filename = f"{job.object.name or 'script-output'}_{job.completed.strftime('%Y-%m-%d_%H%M%S')}.txt"
            response['Content-Disposition'] = content_disposition_header(as_attachment=True, filename=filename)
            return response

        if job.completed:
            table = self.get_table(job, request, bulk_actions=False)

        log_threshold = request.GET.get('log_threshold', LogLevelChoices.LOG_INFO)
        if log_threshold not in LOG_LEVEL_RANK:
            log_threshold = LogLevelChoices.LOG_INFO

        context = {
            'script': job.object,
            'job': job,
            'table': table,
            'log_levels': dict(LogLevelChoices),
            'log_threshold': log_threshold,
        }

        if job.data and 'log' in job.data:
            # Script
            context['tests'] = job.data.get('tests', {})
        elif job.data:
            # Legacy Report
            context['tests'] = {
                name: data for name, data in job.data.items()
                if name.startswith('test_')
            }

        # If this is an HTMX request, return only the result HTML
        if htmx_partial(request):
            if request.GET.get('log'):
                # If log=True, render only the log table
                return render(request, 'htmx/table.html', context)
            response = render(request, 'extras/htmx/script_result.html', context)
            if job.completed or not job.started:
                response.status_code = 286
            return response

        return render(request, 'extras/script_result.html', context)


#
# Markdown
#

class RenderMarkdownView(LoginRequiredMixin, View):

    def post(self, request):
        form = forms.RenderMarkdownForm(request.POST)
        if not form.is_valid():
            HttpResponseBadRequest()
        rendered = render_markdown(form.cleaned_data['text'])

        return HttpResponse(rendered)