Issue with rendering older tool result messages

[namishsaxena]

As you can see after few messages older tool-result messages are not loading, on debugging I found the addToolMessageToChat isn't working properly as it kind of misses the tool-call messages or something. The issue could also be that in database the timestamp for message save is same and the ordering/ sorting doesn't work properly

[namishsaxena]

on further investigation it is happening because the following code in /api/chat/route.ts. In here when new Date() is being assigned, it is causing all assistant/ tool messages getting the same time stamp.

` await saveMessages({
messages: responseMessagesWithoutIncompleteToolCalls.map(
(message) => {
const messageId = generateUUID();

            if (message.role === 'assistant') {
              streamingData.appendMessageAnnotation({
                messageIdFromServer: messageId,
              });
            }

            return {
              id: messageId,
              chatId: id,
              role: message.role,
              content: message.content,
              createdAt: new Date(),
            };
          },
        ),
      });
    } catch (error) {
      console.error('Failed to save chat');
    }
  }`

if anyone is encountering this, you can fix it like. You can extract index in the responseMessagesWithoutIncompleteToolCalls.map
const delay = index * 1000; createdAt: new Date(new Date().getTime() + delay),