Add pagination to AdminAPI.AnnouncementController.index

lib/pleroma/web/admin_api/controllers/announcement_controller.ex

@@ -16,8 +16,13 @@ defmodule Pleroma.Web.AdminAPI.AnnouncementController do
 
   defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.Admin.AnnouncementOperation
 
-  def index(conn, _params) do
-    announcements = Announcement.list_all()
+  defp default_limit, do: 20
+
+  def index(conn, params) do
+    limit = Map.get(params, :limit, default_limit())
+    offset = Map.get(params, :offset, 0)
+
+    announcements = Announcement.list_paginated(%{limit: limit, offset: offset})
 
     render(conn, "index.json", announcements: announcements)
   end

lib/pleroma/web/api_spec/operations/admin/announcement_operation.ex

@@ -21,8 +21,24 @@ defmodule Pleroma.Web.ApiSpec.Admin.AnnouncementOperation do
       summary: "Retrieve a list of announcements",
       operationId: "AdminAPI.AnnouncementController.index",
       security: [%{"oAuth" => ["admin:read"]}],
+      parameters: [
+        Operation.parameter(
+          :limit,
+          :query,
+          %Schema{type: :integer, minimum: 1},
+          "the maximum number of announcements to return"
+        ),
+        Operation.parameter(
+          :offset,
+          :query,
+          %Schema{type: :integer, minimum: 0},
+          "the offset of the first announcement to return"
+        )
+        | admin_api_params()
+      ],
       responses: %{
         200 => Operation.response("Response", "application/json", list_of_announcements()),
+        400 => Operation.response("Forbidden", "application/json", ApiError),
         403 => Operation.response("Forbidden", "application/json", ApiError)
       }
     }