import { getServe } from './serve.js'
import { getWechatRuntimeConfig } from '../config/env.js'
import { handleWechatCommand } from '../platforms/wechat/commandRouter.js'

/**
 * 默认消息发送
 * @param msg
 * @param bot
 * @param ServiceType 服务类型 'GPT' | 'Kimi'
 * @returns {Promise<void>}
 */
export async function defaultMessage(msg, bot, ServiceType = 'GPT') {
  const { botName, autoReplyPrefix, aliasWhiteList, roomWhiteList, commandPrefix } = getWechatRuntimeConfig()
  const getReply = getServe(ServiceType)
  const contact = msg.talker() // 发消息人
  const receiver = msg.to() // 消息接收人
  const content = msg.text() // 消息内容
  const room = msg.room() // 是否是群消息
  const roomName = (await room?.topic()) || null // 群名称
  const alias = (await contact.alias()) || (await contact.name()) // 发消息人昵称
  const remarkName = await contact.alias() // 备注名称
  const name = await contact.name() // 微信名称
  const isText = msg.type() === bot.Message.Type.Text // 消息类型是否为文本
  const isRoom = roomWhiteList.includes(roomName) && content.includes(`${botName}`) // 是否在群聊白名单内并且艾特了机器人
  const isAlias = aliasWhiteList.includes(remarkName) || aliasWhiteList.includes(name) // 发消息的人是否在联系人白名单内
  const isBotSelf = botName === `@${remarkName}` || botName === `@${name}` // 是否是机器人自己
  const isBotSelfDebug = content.trimStart().startsWith('你是谁') // 是否是机器人自己的调试消息
  const isAuthorizedCommand = (room && isRoom) || (!room && isAlias)
  // TODO 你们可以根据自己的需求修改这里的逻辑
  if ((isBotSelf && !isBotSelfDebug) || !isText) return // 如果是机器人自己发送的消息或者消息类型不是文本则不处理
  try {
    if (content.replace(`${botName}`, '').trimStart().startsWith(commandPrefix)) {
      if (!isAuthorizedCommand) return
      const commandResult = await handleWechatCommand(content, {
        serviceType: ServiceType,
        roomName,
        alias,
        name,
      })
      if (commandResult.handled) {
        if (commandResult.reply) {
          await (room || contact).say(commandResult.reply)
        }
        return
      }
    }

    // 区分群聊和私聊
    // 群聊消息去掉艾特主体后，匹配自动回复前缀
    if (isRoom && room && content.replace(`${botName}`, '').trimStart().startsWith(`${autoReplyPrefix}`)) {
      const question = (await msg.mentionText()) || content.replace(`${botName}`, '').replace(`${autoReplyPrefix}`, '') // 去掉艾特的消息主体
      console.log('🌸🌸🌸 / question: ', question)
      const response = await getReply(question)
      await room.say(response)
    }
    // 私人聊天，白名单内的直接发送
    // 私人聊天直接匹配自动回复前缀
    if (isAlias && !room && content.trimStart().startsWith(`${autoReplyPrefix}`)) {
      const question = content.replace(`${autoReplyPrefix}`, '')
      console.log('🌸🌸🌸 / content: ', question)
      const response = await getReply(question)
      await contact.say(response)
    }
  } catch (e) {
    console.error(e)
  }
}

/**
 * 分片消息发送
 * @param message
 * @param bot
 * @returns {Promise<void>}
 */
export async function shardingMessage(message, bot) {
  const talker = message.talker()
  const isText = message.type() === bot.Message.Type.Text // 消息类型是否为文本
  if (talker.self() || message.type() > 10 || (talker.name() === '微信团队' && isText)) {
    return
  }
  const text = message.text()
  const room = message.room()
  if (!room) {
    console.log(`Chat GPT Enabled User: ${talker.name()}`)
    const response = await getChatGPTReply(text)
    await trySay(talker, response)
    return
  }
  let realText = splitMessage(text)
  // 如果是群聊但不是指定艾特人那么就不进行发送消息
  if (text.indexOf(`${botName}`) === -1) {
    return
  }
  realText = text.replace(`${botName}`, '')
  const topic = await room.topic()
  const response = await getChatGPTReply(realText)
  const result = `${realText}\n ---------------- \n ${response}`
  await trySay(room, result)
}

// 分片长度
const SINGLE_MESSAGE_MAX_SIZE = 500

/**
 * 发送
 * @param talker 发送哪个  room为群聊类 text为单人
 * @param msg
 * @returns {Promise<void>}
 */
async function trySay(talker, msg) {
  const messages = []
  let message = msg
  while (message.length > SINGLE_MESSAGE_MAX_SIZE) {
    messages.push(message.slice(0, SINGLE_MESSAGE_MAX_SIZE))
    message = message.slice(SINGLE_MESSAGE_MAX_SIZE)
  }
  messages.push(message)
  for (const msg of messages) {
    await talker.say(msg)
  }
}

/**
 * 分组消息
 * @param text
 * @returns {Promise<*>}
 */
async function splitMessage(text) {
  let realText = text
  const item = text.split('- - - - - - - - - - - - - - -')
  if (item.length > 1) {
    realText = item[item.length - 1]
  }
  return realText
}