ChatController: Add last_read_id option to mark_as_read.

test/web/pleroma_api/controllers/chat_controller_test.exs

@@ -65,6 +65,30 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
 
       assert cm_ref.unread == false
     end
+
+    test "it given a `last_read_id` ", %{conn: conn, user: user} do
+      other_user = insert(:user)
+
+      {:ok, create} = CommonAPI.post_chat_message(other_user, user, "sup")
+      {:ok, _create} = CommonAPI.post_chat_message(other_user, user, "sup part 2")
+      {:ok, chat} = Chat.get_or_create(user.id, other_user.ap_id)
+      object = Object.normalize(create, false)
+      cm_ref = MessageReference.for_chat_and_object(chat, object)
+
+      assert cm_ref.unread == true
+
+      result =
+        conn
+        |> put_req_header("content-type", "application/json")
+        |> post("/api/v1/pleroma/chats/#{chat.id}/read", %{"last_read_id" => cm_ref.id})
+        |> json_response_and_validate_schema(200)
+
+      assert result["unread"] == 1
+
+      cm_ref = MessageReference.for_chat_and_object(chat, object)
+
+      assert cm_ref.unread == false
+    end
   end
 
   describe "POST /api/v1/pleroma/chats/:id/messages" do