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node_helper.js
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node_helper.js
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//
// Module : MMM-AssistantMk2
//
"use strict"
const path = require("path")
const record = require("node-record-lpcm16")
const GoogleAssistant = require("google-assistant")
const exec = require("child_process").exec
const fs = require("fs")
var NodeHelper = require("node_helper")
module.exports = NodeHelper.create({
start: function () {
this.config = {}
this.continueConversation = false
this.currentPayload = null
this.speaker = null
},
play: function(file, command, option, cb=()=>{}) {
const player = require('play-sound')()
this.sendSocketNotification("SPEAKER_ON")
var co = {}
co[command] = option
this.speaker = player.play(file, co, (err)=>{
if (err && !err.killed) {
console.log("Speaker error:", err)
throw err
}
this.sendSocketNotification("SPEAKER_OFF")
cb()
})
},
playChime: function (cb) {
var com = this.config.play.playProgram
var option = this.config.play.playOption
var file = path.resolve(__dirname, "resources", this.config.startChime)
this.play(file, com, option, ()=>{cb()})
},
playResponse: function (file, cb) {
var com = this.config.play.playProgram
var option = this.config.play.playOption
if (this.config.responseVoice) {
this.play(file, com, option, ()=>{
fs.unlink(file, (err) => {
if (err) {
console.log("[AMK2] Clearing response file error:", err)
}
})
cb()
})
} else {
cb()
}
},
clearTmp: function() {
var dir = path.resolve(__dirname, "tmp")
var cmd = "cd " + dir + "; rm *.mp3"
exec(cmd, (e,so,se)=>{
console.log("[AMK2] Temporal storage directory is clearing.")
//if (e) console.log(e)
})
},
initializeAfterLoading: function (config) {
this.config = config
if (!this.config.verbose) {
console.log = function() {}
}
this.gactionCLI()
this.clearTmp()
},
gactionCLI: function() {
if (this.config.useGactionCLI) {
var cdPath = path.resolve(__dirname, "gaction")
var cmd = "cd " + cdPath + "; ./gactions test --action_package actions.json --project " + this.config.projectId
exec(cmd, (e, so, se)=>{
console.log("[AMK2] GAction action package updates:", so, se)
if (e) console.log(e)
})
}
},
socketNotificationReceived: function (notification, payload) {
switch(notification) {
case "INIT":
this.initializeAfterLoading(payload)
this.sendSocketNotification("INITIALIZED")
break
case "START":
this.prepareActivate(payload)
break
case "SHELLEXEC":
var command = payload.command
command += (payload.options) ? (" " + payload.options) : ""
exec (command, (e,so,se)=> {
console.log("[AMK2] ShellExec command:", command)
if (e) console.log(e)
})
break
case this.config.notifications.ASSISTANT_DEACTIVATED:
if (this.speaker) {
this.speaker.kill()
}
break
}
},
prepareActivate: function(pObj) {
var payload = pObj.profile
var textQuery = pObj.textQuery
var sender = pObj.sender
var id = pObj.id
if (this.continueConversation) {
payload = this.currentPayload
}
var cb = ()=>{
if (textQuery) {
this.sendSocketNotification("TRANSCRIPTION", {done:true, transcription:textQuery})
}
this.activate(payload, textQuery, sender)
};
if (pObj.sayMode == true && this.config.noChimeOnSay) {
cb()
} else {
this.playChime(cb)
}
},
activate: function(payload, textQuery=null, sender=null) {
var transcriptionHook = this.config.transcriptionHook
var cfgInstance = {
auth:{
keyFilePath : path.resolve(__dirname, this.config.auth.keyFilePath),
savedTokensPath : path.resolve(__dirname, "profiles/" + payload.profileFile),
},
conversation : {
audio : {
encodingIn: "LINEAR16",
sampleRateIn: 16000,
encodingOut: this.config.play.encodingOut,
sampleRateOut: this.config.play.sampleRateOut,
},
lang : payload.lang,
deviceModelId : this.config.deviceModelId,
deviceId : this.config.deviceInstanceId,
deviceLocation : this.config.deviceLocation,
screen : {
isOn: this.config.responseScreen
},
},
}
if (textQuery) {
cfgInstance.conversation.textQuery = textQuery
}
this.currentPayload = payload
var startConversation = (conversation) => {
console.log("[AMK2] Conversation starts.")
if (textQuery) {
console.log("[AMK2] Started with text query:", textQuery)
}
let foundHook = []
let foundAction = null
let foundVideo = null
let foundVideoList = null
let foundOpenSpotify = null
let foundTextResponse = ""
let finalTranscription = ""
let audioError = null
let spoken = null
let screenOutput = null
let audioBuffer = 0
var mp3Key = Date.now()
var mp3FileName = mp3Key + ".mp3"
var mp3FilePath = "tmp/" + mp3FileName
var mp3File = path.resolve(__dirname, mp3FilePath)
var wstream = fs.createWriteStream(mp3File)
// setup the conversation
conversation
.on("audio-data", (data) => {
audioBuffer += data.length;
try {
if (data.length > 0) {
wstream.write(data)
}
} catch (error) {
wstream.end()
audioError = error
console.error("[AMK2] E:", error)
console.log("[AMK2] Some error happens. Try again.")
}
})
// done speaking, close the mic
.on("end-of-utterance", () => {
console.log("[AMK2] end-of-utterance")
record.stop()
this.sendSocketNotification("MIC_OFF")
})
// just to spit out to the console what was said (as we say it)
.on("transcription", (data) => {
console.log("[AMK2] Transcription:", data.transcription, " --- Done:", data.done)
this.sendSocketNotification("TRANSCRIPTION", data)
if (data.done) {
finalTranscription = data.transcription
spoken = true
}
})
// what the assistant said back. But currently, GAS doesn"t return text response with screenOut at same time (maybe.)
.on("response", (text) => {
console.log("[AMK2] Assistant Text Response:", text)
foundTextResponse = text
})
// if we"ve requested a volume level change, get the percentage of the new level
// But I"ll not support this feature.
.on("volume-percent", (percent) => {
console.log("[AMK2] Volume control... Not yet supported")
})
// the device needs to complete an action
.on("device-action", (action) => {
console.log(action, payload)
console.log("[AMK2] Device Action:", action)
if (typeof action["inputs"] !== "undefined") {
var intent = action.inputs[0].payload.commands[0].execution[0]
console.log("[AMK2] Action execution", intent)
foundAction = intent
}
})
.on("screen-data", (screen) => {
var self = this
var file = require("fs")
var filePath = path.resolve(__dirname, "tmp", "temp.html")
screenOutput = "temp.html"
var str = screen.data.toString("utf8")
str = str.replace("html,body{", "html,body{zoom:" + this.config.screenZoom + ";")
/*
// TODO:I'll put some code here for web scrapping for contents reading.
//For Image Search
//https://www.google.com/search?tbm=isch
var re = new RegExp("(tbm=isch[^<]*)", "ig")
var isch = re.exec(str)
//console.log("image:", isch)
if (isch) {
this.sendSocketNotification("IMAGE_OUTPUT", isch)
}
*/
var contents = file.writeFile(filePath, str,
(error) => {
if (error) {
console.error("[AMK2] - temporal HTML creation fails. E: " + error);
screenOutput = null
}
}
)
var re = new RegExp("youtube\.com\/watch\\?v\=([0-9a-zA-Z\-\_]+)", "ig")
var youtubeVideo = re.exec(str)
if (youtubeVideo) {
console.log("[AMK2] video found:", youtubeVideo[1])
foundVideo = youtubeVideo[1]
}
var re = new RegExp("youtube\.com\/playlist\\?list\=([a-zA-Z0-9\-\_]+)", "ig")
var youtubeList = re.exec(str)
if (youtubeList) {
console.log("[AMK2] video list found:", youtubeList[1])
foundVideoList = youtubeList[1]
}
var re = new RegExp("\\(.open\\.spotify\\.com ñ (https:\\/\\/open\\.spotify\\.com[^ ]*).\\)", "gm")
var openSpotify = re.exec(str)
if (openSpotify) {
console.error("[AMK2] openSpotify found:", openSpotify[1])
foundOpenSpotify = openSpotify[1]
}
})
// once the conversation is ended, see if we need to follow up
.on("ended", (error, continueConversation) => {
if (continueConversation) {
this.continueConversation = continueConversation
foundHook = []
foundVideo = null
foundVideoList = null
foundOpenSpotify = null
} else {
var tr = (textQuery) ? textQuery : finalTranscription
foundHook = this.findHook(transcriptionHook, tr)
}
if (error) {
console.error("[AMK2] Conversation Ended Error:", error)
console.error("[AMK2] Conversation Error:", error)
this.sendSocketNotification("CONVERSATION_ERROR", error)
return
} else {
error = null
}
setTimeout(()=>{
wstream.end()
var conversationResult = {
"screenOutput": screenOutput,
"foundHook": foundHook,
"foundAction": foundAction,
"foundVideo": foundVideo,
"foundVideoList": foundVideoList,
"foundOpenSpotify": foundOpenSpotify,
"foundTextResponse" : foundTextResponse,
"finalTranscription" : finalTranscription,
"spoken": spoken,
"audioSize" : audioBuffer,
"audioError" : audioError,
"responseFile" : mp3FileName,
"continueConversation": continueConversation,
"error" : error,
"sender": sender,
}
if (conversationResult.foundHook.length > 0) {
console.log("[AMK2] Conversation Completed")
this.sendSocketNotification("CONVERSATION_END", conversationResult)
} else {
if (conversationResult.audioSize <= 0) {
if (!this.config.ignoreNoVoiceError) {
conversationResult.audioError = "NO RESPONSE AUDIO IS RETURNED."
conversationResult.error = conversationResult.audioError
console.log("[AMK2]", conversationResult.audioError)
}
this.sendSocketNotification("CONVERSATION_END", conversationResult)
} else {
this.sendSocketNotification("RESPONSE_START", conversationResult)
this.playResponse(mp3File, ()=>{
console.log("[AMK2] Conversation Completed")
this.sendSocketNotification("RESPONSE_END", conversationResult)
setTimeout(()=>{
this.sendSocketNotification("CONVERSATION_END", conversationResult)
}, 10)
})
}
}
}, 100)
})
// catch any errors
.on("error", (error) => {
wstream.end()
console.error("[AMK2] Conversation Error:", error)
this.sendSocketNotification("CONVERSATION_ERROR", error)
})
if (!textQuery) {
var mic = record.start(this.config.record)
this.sendSocketNotification("MIC_ON")
mic.on("data", (data) => {
try {
conversation.write(data)
} catch (err) {
record.stop()
this.sendSocketNotification("MIC_OFF")
console.error("[AMK2] mic error:", err)
}
})
}
}
var assistant = new GoogleAssistant(cfgInstance.auth)
assistant
.on("ready", () => {
// start a conversation!
console.log("[AMK2] assistant ready")
this.sendSocketNotification("ASSISTANT_READY")
assistant.start(cfgInstance.conversation)
})
.on("started", startConversation)
.on("error", (error) => {
record.stop()
this.sendSocketNotification("MIC_OFF")
console.error("[AMK2] Assistant Error:", error)
this.sendSocketNotification("ASSISTANT_ERROR", error)
})
},
findHook: function(transcriptionHook, transcription) {
var foundHook = []
for (var k in transcriptionHook) {
if (transcriptionHook.hasOwnProperty(k)) {
var v = transcriptionHook[k];
var pattern = new RegExp(v.pattern, "ig")
var found = pattern.exec(transcription)
if (found !== null) {
foundHook.push({"key":k, "match":found})
}
}
}
return foundHook
}
})