const { Wechaty } = require('wechaty')

const bot = new Wechaty()
bot.on('scan',    (qrcode, status) => console.log(['https://api.qrserver.com/v1/create-qr-code/?data=',encodeURIComponent(qrcode),'&size=220x220&margin=20',].join('')))
bot.on('login',   user => console.log(`User ${user} logined`))
bot.on('message', message => console.log(`Message: ${message}`))
bot.start()

注意，new Wechaty() 是可以传参数的

使用网页版本的场景

这里name 是用来存储登录信息的，和Wechaty.instance({name: 'XX'}) 的作用是一样的。查看详情.

const bot = new Wechaty({ name: 'your-bot-name' })

使用iPad 版本的场景

当不使用web 版本的时候，需要定义你需要用什么样的方式接入，通过定义puppet名字的方式确定接入方式，这里是wechaty-puppet-padchat
puppetOptions 在这里是用来传递token的，按照下面代码示例传入即可。

const WECHATY_PUPPET_PADCHAT_TOKEN = 'your-token-here'

const puppet = 'wechaty-puppet-padchat' // 使用ipad 的方式接入。

const puppetOptions = {
  token: WECHATY_PUPPET_PADCHAT_TOKEN,
}

const bot = new Wechaty({
  name: 'your-bot-name'
  puppet,
  puppetOptions,
})

上述的puppet 和 token 也可以不写进代码里面，通过环境变量来传递，如在命令行中运行：

WECHATY_PUPPET_PADCHAT_TOKEN=你的token WECHATY_PUPPET=padchat node bot.js

wechaty.on(event, listener) ⇒ `Wechaty`

当机器人收到消息，会触发一个事件，一些简单的事件介绍如下：

scan: 当机器人需要扫码登录的时候，会触发这个事件，当手机扫码登录后，机器人就可以登录进去了。
login: 当机器人登陆成功后，会触发这个事件。
logout: 当机器人退出登陆的时候，会触发到这个事件。
message: 当有新消息的时候会触发这个事件。

初次之外，wechaty还有一些群相关的事件，了解更多：WechatyEventName

你可以在这些时间的方法中自定义你希望的所有逻辑。

Kind: instance method of Wechaty

Returns: Wechaty - - this for chaining, see advanced chaining usage

Example (Event:scan)

// Scan Event will emit when the bot needs to show you a QR Code for scanning

bot.on('scan', (url, code) => {  console.log(`[${code}] Scan ${url} to login.` )})

Example (Event:login )

// Login Event will emit when bot login full successful.

bot.on('login', (user) => {  console.log(`user ${user} login`)})

Example (Event:logout )

// Logout Event will emit when bot detected log out.

bot.on('logout', (user) => {  console.log(`user ${user} logout`)})

Example (Event:message )

// Message Event will emit when there's a new message.

wechaty.on('message', (message) => {  console.log(`message ${message} received`)})

Example (Event:friendship )

// Friendship Event will emit when got a new friend request, or friendship is confirmed.

bot.on('friendship', (friendship) => {  
  if(friendship.type() === Friendship.Type.Receive){

    // 1. receive new friendship request from new contact    
    const contact = friendship.contact()    
    let result = await friendship.accept()      
    if(result){
      console.log(`Request from ${contact.name()} is accept succesfully!`)      
    } else {        
      console.log(`Request from ${contact.name()} failed to accept!`)      
    }      
  } else if (friendship.type() === Friendship.Type.Confirm) { 

    // 2. confirm friendship      
    console.log(`new friendship confirmed with ${contact.name()}`)   
    } 
})

Example (Event:room-join )

// room-join Event will emit when someone join the room.

bot.on('room-join', (room, inviteeList, inviter) => {  
  const nameList = inviteeList.map(c => c.name()).join(',')  
  console.log(`Room ${room.topic()} got new member ${nameList}, invited by ${inviter}`)
})

Example (Event:room-leave )

// room-leave Event will emit when someone leave the room.

bot.on('room-leave', (room, leaverList) => {  
  const nameList = leaverList.map(c => c.name()).join(',')  
  console.log(`Room ${room.topic()} lost member ${nameList}`)
})

Example (Event:room-topic )

// room-topic Event will emit when someone change the room's topic.

bot.on('room-topic', (room, topic, oldTopic, changer) => {  
  console.log(`Room ${room.topic()} topic changed from ${oldTopic} to ${topic} by ${changer.name()}`)
})

Example (Event:room-invite, RoomInvitation has been encapsulated as a RoomInvitation Class. )

// room-invite Event will emit when there's an room invitation.

bot.on('room-invite', async roomInvitation => {  
  try {    
    console.log(`received room-invite event.`)    
    await roomInvitation.accept()  
  } catch (e) {    
    console.error(e)  
  }
}

Example (Event:error )

// error Event will emit when there's an error occurred.

bot.on('error', (error) => {  console.error(error)})