Update stats admin endpoint

test/web/admin_api/admin_api_controller_test.exs

@@ -3612,6 +3612,26 @@ defmodule Pleroma.Web.AdminAPI.AdminAPIControllerTest do
       assert %{"direct" => 0, "private" => 0, "public" => 1, "unlisted" => 2} =
                response["status_visibility"]
     end
+
+    test "by instance", %{conn: conn} do
+      admin = insert(:user, is_admin: true)
+      user1 = insert(:user)
+      instance2 = "instance2.tld"
+      user2 = insert(:user, %{ap_id: "https://#{instance2}/@actor"})
+
+      CommonAPI.post(user1, %{"visibility" => "public", "status" => "hey"})
+      CommonAPI.post(user2, %{"visibility" => "unlisted", "status" => "hey"})
+      CommonAPI.post(user2, %{"visibility" => "private", "status" => "hey"})
+
+      response =
+        conn
+        |> assign(:user, admin)
+        |> get("/api/pleroma/admin/stats", instance: instance2)
+        |> json_response(200)
+
+      assert %{"direct" => 0, "private" => 1, "public" => 0, "unlisted" => 1} =
+               response["status_visibility"]
+    end
   end
 
   describe "POST /api/pleroma/admin/oauth_app" do