import { toast } from "sonner";

export const chatNoticeToastId = "chat-notice";

export type NoticeTone = "info" | "success" | "error";

export type ChatNoticeAction = Readonly<{
  label: string;
  onClick: () => void;
}>;

const ongoingNotice = /正在|请稍候|请先|联网后/;
const failedNotice = /失败|无法|不可用|未能|未找到|已写满|已被删除/;
const settledNotice = /^已|^回答已恢复/;

export function noticeTone(message: string): NoticeTone {
  if (ongoingNotice.test(message)) return "info";
  if (failedNotice.test(message)) return "error";
  if (settledNotice.test(message)) return "success";
  return "info";
}

let lastNotice = "";

export function showChatNotice(message: string, action?: ChatNoticeAction) {
  if (!message.trim()) {
    if (!lastNotice) return;
    lastNotice = "";
    toast.dismiss(chatNoticeToastId);
    return;
  }
  if (lastNotice === message && !action) return;
  lastNotice = message;
  const tone = noticeTone(message);
  const options = {
    id: chatNoticeToastId,
    ...(action ? { action: { label: action.label, onClick: action.onClick }, duration: Infinity } : {}),
  };
  if (tone === "success") {
    toast.success(message, options);
    return;
  }
  if (tone === "error") {
    toast.error(message, options);
    return;
  }
  toast(message, options);
}