from typing import Any, Dict, Optional

from django.contrib import admin
from django.http.request import HttpRequest
from django.http.response import HttpResponse

from . import settings, stats_views, models


class QueueAdmin(admin.ModelAdmin):
    """Admin View for Django-RQ Queue"""

    def has_add_permission(self, request):
        return False  # Hide the admin "+ Add" link for Queues

    def has_change_permission(self, request: HttpRequest, obj: Optional[Any] = None) -> bool:
        return True

    def has_module_permission(self, request: HttpRequest):
        """
        return True if the given request has any permission in the given
        app label.

        Can be overridden by the user in subclasses. In such case it should
        return True if the given request has permission to view the module on
        the admin index page and access the module's index page. Overriding it
        does not restrict access to the add, change or delete views. Use
        `ModelAdmin.has_(add|change|delete)_permission` for that.
        """
        return request.user.has_module_perms('django_rq')  # type: ignore[union-attr]

    def changelist_view(self, request: HttpRequest, extra_context: Optional[Dict[str, Any]] = None) -> HttpResponse:
        """The 'change list' admin view for this model."""
        # proxy request to stats view
        return stats_views.stats(request)


if settings.SHOW_ADMIN_LINK:
    admin.site.register(models.Queue, QueueAdmin)