Function appendTokenToLastMessage

core/edit/recursiveStream.ts:130–154

(
  messages: ChatMessage[],
  token: string,
)

}

function appendTokenToLastMessage(
  messages: ChatMessage[],
  token: string,
): ChatMessage[] {
  if (messages.length === 0) {
    return messages;
  }

  const lastMessage = messages[messages.length - 1];
  if (typeof lastMessage.content !== "string") {
    return messages;
  }

  if (lastMessage.content.endsWith(token)) {
    return messages;
  }

  const updatedMessages = [...messages];
  updatedMessages[updatedMessages.length - 1] = {
    ...lastMessage,
    content: lastMessage.content + token,
  };

  return updatedMessages;
}