import { ref, onMounted, onUnmounted, watch } from 'vue';
import { getConversationSync, getMessageSync, getChatKey, setUnread, deleteConversation } from '@/api/common'
import { Base64 } from 'js-base64'

import { userStore } from '@/store/user'
import { useIMStore } from '@/store/im'


// 配置悟空IM
import {
  MessageText,
  Channel,
  WKSDK,
  ChannelTypePerson,
  MessageContent,
} from "wukongimjssdk"

// 默认招呼语
export const defaultText = '您好，关注到您发布该职位信息，请问有机会与您进一步沟通吗？'

// 企业默认招呼语
// export const defaultTextEnt = '您好，我们正在寻找充满激情、勇于挑战的您，快来和我聊一聊吧~'


const { ObjectContent } = initRegister(101)
const { ObjectContent: ObjectContent2 } = initRegister(102)
const { ObjectContent: ObjectContent3 } = initRegister(103)
const { ObjectContent: ObjectContent4 } = initRegister(104)
const { ObjectContent: ObjectContent5 } = initRegister(105) // 发送简历


const contentType = {
  101: ObjectContent,
  102: ObjectContent2,
  103: ObjectContent3,
  104: ObjectContent4,
  105: ObjectContent5, // 发送简历
}

// 注册消息体
function initRegister (type) {
  class ObjectContent extends MessageContent {
    constructor(text) {
      super();
      this.content = text
    }
    get conversationDigest() {
        // 这里需要实现具体的逻辑
        return this.content
    }
    get contentType() {
        // 这里需要实现具体的逻辑
        return type; // 示例实现
    }
    decodeJSON(content) {
        this.content = content.text;
    }
    encodeJSON() {
        return {
          content: this.content
        };
    }
  }
  // 注册101类型为面试
  WKSDK.shared().register(type, () => new ObjectContent(''))
  return {
    ObjectContent
  }
}


const HISTORY_QUERY = {
  limit: 20,
  startMessageSeq: 0,
  endMessageSeq: 0,
  pullMode: 1
}

const ConnectStatus = {
  Disconnect: 0, // 断开连接
  Connected: 1, // 连接成功
  Connecting: 2, // 连接中
  ConnectFail: 3, // 连接错误
  ConnectKick: 4, // 连接被踢，服务器要求客户端断开（一般是账号在其他地方登录，被踢）
}
// api 接入
export function useDataSource () {
  // 最近会话数据源
  WKSDK.shared().config.provider.syncConversationsCallback  = async () => {
    const query = {
      msg_count: 1
    }

    const resultConversations = []
    const resp = await getConversationSync(query)
    const { data:conversationList } = resp
    if (conversationList) {
      conversationList.forEach(conversation => {
        conversation.channel = new Channel(conversation.channel_id, conversation.channel_type)
        conversation.unread = +(conversation.unread || 0)
        resultConversations.push(conversation)
      })
    }
    return resultConversations
  }
    // 同步频道消息数据源
  WKSDK.shared().config.provider.syncMessagesCallback = async function(channel) {
    // 后端提供的获取频道消息列表的接口数据 然后构建成 Message对象数组返回
    let resultMessages  = new Array()
    const {
      startMessageSeq: start_message_seq,
      endMessageSeq: end_message_seq,
      limit,
      pullMode: pull_mode
    } = HISTORY_QUERY
    const query = {
      channel_id: channel.channelID,
      channel_type: channel.channelType,
      start_message_seq,
      end_message_seq,
      limit,
      pull_mode,
    }

    const { data } = await getMessageSync(query)
    const resp = data
    const messageList = resp && resp["messages"]
    if (messageList) {
      messageList.forEach((msg) => {
        // const message = Convert.toMessage(msg);
        // msg.channel = new Channel(msg.channel_id, msg.channel_type)
        msg.payload = JSON.parse(Base64.decode(msg.payload))
        if (contentType[msg.payload.type]) {
          msg.payload.content = JSON.parse(msg.payload.content ?? '{}')
        }
        resultMessages.push(msg)
      })
    }
    // console.log(resultMessages)
    const more = resp.more === 1
    return {
      more,
      resultMessages
    }
  }
}

async function getKey () {
  const useUserStore = userStore()
  if (!useUserStore.accountInfo?.userId) {
    return {}
  }
  const keyQuery = {
    userId: useUserStore.accountInfo?.userId
  }

  const { data } = await getChatKey(keyQuery)
  return {
    ...data
  }
}

export const useIM = () => {
  useDataSource()
  const key = ref(0)
  const IM = useIMStore()
  
  onMounted( async () => {
    await resetConfig()
    // 连接状态监听
    WKSDK.shared().connectManager.addConnectStatusListener(connectStatusListener)
    // 常规消息监听
    WKSDK.shared().chatManager.addMessageListener(messageListen)
    // 连接
    WKSDK.shared().connectManager.connect()
  })
  onUnmounted(() => {
    WKSDK.shared().connectManager.removeConnectStatusListener(connectStatusListener)
    // 常规消息监听移除
    WKSDK.shared().chatManager.removeMessageListener(messageListen)
    // 连接状态监听移除
    WKSDK.shared().connectManager.disconnect()
  })
  
  async function messageListen (message) {
    // console.log('收到消息', message)
    IM.setFromChannel(message.channel.channelID)
    setUnreadCount()
  }

  async function connectStatusListener (status) {
    // console.log('连接状态', status === ConnectStatus.Connected)
    // 连接成功 获取点击数
    const connected = status === ConnectStatus.Connected
    IM.setConnected(connected)
    if (connected) {
      // 必须同步最近会话才能获取未读总数
      await syncConversation()
      setUnreadCount()
    }
  }

  function setUnreadCount () {
    const count = WKSDK.shared().conversationManager.getAllUnreadCount()
    key.value++
    IM.setNewMsg(key.value)
    IM.setUnreadCount(count)
    console.log('未读消息总数', count)
  }

  async function resetConfig () {
    try {
      const { uid, wssUrl, token } = await getKey()
      if (!wssUrl) {
        return
      }
      IM.setUid(uid)
      // 单机模式可以直接设置地址
      WKSDK.shared().config.addr = 'wss://' + wssUrl// 默认端口为5200 + wsUrl 
      // 认证信息
      WKSDK.shared().config.uid = uid // 用户uid（需要在悟空通讯端注册过）
      WKSDK.shared().config.token = token // 用户token （需要在悟空通讯端注册过）
    } catch (error) {
      console.log(error)
    }
  }
  return {
    resetConfig
  }
}

export function initConnect (callback = () => {}, mounted = () => {}) {
  useDataSource()
  const IM = useIMStore()
  const conversationList = ref([])
  const messageItems = ref([])

  watch(
    () => IM.newMsg,
    async () => {
      // 未读消息变化
      updateConversation()
      // 拉取最新消息 查看是否是自己的数据
    },
    {
      deep: true,
      immediate: true
    }
  )
  onMounted(async () => {
    // 消息发送状态监听
    WKSDK.shared().chatManager.addMessageStatusListener(statusListen)
    // 常规消息监听
    // WKSDK.shared().chatManager.addMessageListener(messageListen)

    mounted()
  })
  onUnmounted(() => {
    // 消息发送状态监听移除
    WKSDK.shared().chatManager.removeMessageStatusListener(statusListen)
    // 常规消息监听移除
    // WKSDK.shared().chatManager.removeMessageListener(messageListen)
  })

  // 消息发送状态监听
  function statusListen (packet) {
    console.log('发送状态', packet)
    if (packet.reasonCode === 1) {
      // 发送成功
      console.log('发送成功')
      // 添加一组成功数据
      callback(true)
    } else {
      // 发送失败
      console.log('发送失败')
      // 添加一组失败数据
      callback(false)
    }
  }

  async function updateConversation () {
    const res = await syncConversation()
    conversationList.value = res
  }

  function updateUnreadCount () {
    const count = WKSDK.shared().conversationManager.getAllUnreadCount()
    IM.setUnreadCount(count)
  } 

  async function deleteConversations (channel, enterpriseId) {
    const query = {
      channel_id: channel.channelID,
      channel_type: channel.channelType,
      enterpriseId
    }
    await deleteConversation(query)
  }

  async function resetUnread (channel, enterpriseId) {
    const query = {
      channel_id: channel.channelID,
      channel_type: channel.channelType,
      enterpriseId,
      unread: 0
    }
    const res = await setUnread(query)
    return res
  }

  return {
    resetUnread,
    deleteConversations,
    updateConversation,
    updateUnreadCount,
    conversationList,
    messageItems,
    // channel
  }
}

// 同步最近会话
async function syncConversation () {
  const res = await WKSDK.shared().conversationManager.sync()
  return res
}

// 发起聊天
export async function initChart (userId, enterpriseId) {
  const channel = ref()
  // const list = ref([])
  const query = {
    userId,
    enterpriseId
  }
  // 创建聊天频道
  const { data } = await getChatKey(query)
  const { uid } = data
  const _channel = new Channel(uid, ChannelTypePerson)
  channel.value = _channel
  const conversation = WKSDK.shared().conversationManager.findConversation(_channel)
  if(!conversation) {
    // 如果最近会话不存在，则创建一个空的会话
    WKSDK.shared().conversationManager.createEmptyConversation(_channel)
  }
  const res = await getMoreMessages(1, _channel)
  return {
    channel,
    ...res
  }
}

// 翻页
export async function getMoreMessages (pageSize, channel) {
  const list = ref([])
  Object.assign(HISTORY_QUERY, {
    startMessageSeq: (pageSize - 1) * HISTORY_QUERY.limit
  })
  const { resultMessages, more } = await WKSDK.shared().chatManager.syncMessages(channel)
  list.value = resultMessages
  return {
    list,
    more
  }
}

/**
 * 
 * @param {*} text 
 * @param {*} _channel 
 * @param { Number } type : 101 面试主体 
 * @returns 
 */
  // 发送职位使用101
export function send (text, _channel, type) {
  let _text
  if (contentType[type]) {
    _text = new contentType[type](text)
    WKSDK.shared().chatManager.send(_text, _channel)
    return
  }
  // if (type === 101) {
  //   _text = new ObjectContent(text)
  //   WKSDK.shared().chatManager.send(_text, _channel)
  //   // console.log(_text)
  //   return
  // }
  // if (type === 102) {
  //   _text = new ObjectContent2(text)
  //   WKSDK.shared().chatManager.send(_text, _channel)
  //   // console.log(_text)
  //   return
  // }
  // // 求职者拒绝面试邀请
  // if (type === 103) {
  //   _text = new ObjectContent3(text)
  //   WKSDK.shared().chatManager.send(_text, _channel)
  //   return
  // }
  // // 求职者接受面试邀请
  // if (type === 104) {
  //   _text = new ObjectContent4(text)
  //   WKSDK.shared().chatManager.send(_text, _channel)
  //   return
  // }
  _text = new MessageText(text)
  // console.log(_text)
  WKSDK.shared().chatManager.send(_text, _channel)
}

// 对话开场白 用户 to 企业
export async function prologue ({userId, enterpriseId, text}) {
  const { channel } = await checkConversation(userId, enterpriseId)
  send(text, channel, 102)
  return channel
}

// 企业 to 用户
export async function talkToUser ({userId, text}) {
  const { channel, isNewTalk } = await checkConversation(userId)
  if (!isNewTalk) send(text, channel)
}

// 检测是否存在频道
export async function checkConversation (userId, enterpriseId) {
  const query = {
    userId,
    enterpriseId
  }
  // 创建聊天频道
  const { data } = await getChatKey(query)
  const { uid } = data
  const _channel = new Channel(uid, ChannelTypePerson)
  console.log('生成channel', _channel)
  const conversation = WKSDK.shared().conversationManager.findConversation(_channel)
  const isNewTalk = ref(false)
  if(!conversation) {
    // 如果最近会话不存在，则创建一个空的会话
    WKSDK.shared().conversationManager.createEmptyConversation(_channel)
    isNewTalk.value = true
  }
  return {
    channel: _channel,
    isNewTalk: isNewTalk.value
  }
}