/* eslint-disable @typescript-eslint/no-unsafe-return */
/* eslint-disable @typescript-eslint/member-delimiter-style */
/* eslint-disable prefer-arrow/prefer-arrow-functions */

import { relativeDate } from './datetime';
import { parseAction } from './twitter';

function parseCmd(message: string): {
  cmd: string;
  args: string[];
} {
  message = message.trim();
  message = message.replace('\\\\', '\\0x5c');
  message = message.replace('\\\"', '\\0x22');
  message = message.replace('\\\'', '\\0x27');
  const strs = message.match(/'[\s\S]*?'|(?:\S+=)?"[\s\S]*?"|\S+/mg);
  const cmd = strs?.length ? strs[0].length ? strs[0].substring(0, 1) === '/' ? strs[0].substring(1) : '' : '' : '';
  const args = (strs ?? []).slice(1).map(arg => {
    arg = arg.replace(/^(\S+=)?["']+(?!.*=)|["']+$/g, '$1');
    arg = arg.replace('\\0x27', '\\\'');
    arg = arg.replace('\\0x22', '\\\"');
    arg = arg.replace('\\0x5c', '\\\\');
    return arg;
  });
  return {
    cmd,
    args,
  };
}

function sub(chat: IChat, args: string[], reply: (msg: string) => any,
  lock: ILock, lockfile: string
): void {
  if (chat.chatType === ChatType.Temp) {
    return reply('请先添加机器人为好友。');
  }
  const index = lock.subscribers.findIndex(({chatID, chatType}) =>
    chat.chatID === chatID && chat.chatType === chatType
  );
  if (index > -1) return reply('此聊天已订阅 IDOLY PRIDE BWIKI 更新提醒。');
  lock.subscribers.push(chat);
  reply('已为此聊天订阅 IDOLY PRIDE BWIKI 更新提醒。');
}

function unsub(chat: IChat, args: string[], reply: (msg: string) => any,
  lock: ILock, lockfile: string
): void {
  if (chat.chatType === ChatType.Temp) {
    return reply('请先添加机器人为好友。');
  }
  const index = lock.subscribers.findIndex(({chatID, chatType}) =>
    chat.chatID === chatID && chat.chatType === chatType
  );
  if (index === -1) return reply('此聊天未订阅 IDOLY PRIDE BWIKI 更新提醒。');
  lock.subscribers.splice(index, 1);
  reply('已为此聊天退订 IDOLY PRIDE BWIKI 更新提醒。');
}

function status(chat: IChat, _: string[], reply: (msg: string) => any, lock: ILock): void {
  const lastAction = lock.lastActions.sort(
    (a1, a2) => Date.parse(a2.timestamp) - Date.parse(a1.timestamp)
  )[0];
  reply(`IDOLY PRIDE 官方推特追踪情况：
上次更新时间：${relativeDate(lastAction.timestamp || '')}
上次更新内容：${parseAction(lastAction)}
上次检查时间：${relativeDate(lock.updatedAt || '')}`);
}

export { parseCmd, sub, unsub, status };