// commonlib.js
exports.SendMessage = function(type, speakerNumber, sendText) {

  var request = require('request');
  var options = {
    uri: "http://xxx.xxx.xxx.xxx:xxxx",    // RaspberryPiのserver.js
    headers: {
      "Content-Type" : "application/json",
    },
    json: {
      "type" : type,
      "speakerNumber": speakerNumber,
      "message": sendText
    }
  };
  request.post(options, function(error, response, body){
    console.log(error);
  });
}

// timesignal.js
"use strict";

const GoogleHomeLib = require('../commonlib');    // 作成したcommonlib.jsを呼び出す
const fs = require('fs');

// フォルダ設定
const melodyDir = './melody';
const ampmDir = './ampm';
const timeVoiceDir = './ji';
const desuDir = './desu';
const talkFile = '/xxx/xxx/xxx/signal.mp3';　　　　// RaspberryPiのApacheでのMP3の場所
const sendUrl = 'http://xxx.xxx.xxx.xxx/xxx/signal.mp3';    // RaspberryPiのApacheでのURL

var melodyFiles = fs.readdirSync(melodyDir);
var melody = GetRandomFile(melodyDir, melodyFiles);
var timeVoice = GetVoiceString();
var desuFiles = fs.readdirSync(desuDir);
var desu = GetRandomFile(desuDir, desuFiles);

// コマンドライン作成
var command = 'cat ' + melody + ' ' + timeVoice + ' ' + desu + ' > ' + talkFile;
console.log(command);

// MP3作成
const execSync = require('child_process').execSync;
const result =  execSync(command);

// GoogleHomeへ転送
GoogleHomeLib.SendMessage('sound', 0, sendUrl);

// 時報ファイル取得
function GetVoiceString(){
	var todayNow = new Date();
	var hours = todayNow.getHours();
	// crontabで○時59分に50秒くらいSleepするので次の時刻にする
	var signalTime = hours + 1;
	var ampmFile;

	if (signalTime == 24) {
		// 日付変更
		ampmFile = ampmDir + '/' + 'gozen.mp3';
		signalTime = 0;
	} else if (signalTime >= 12) {
		// 午後
		ampmFile = ampmDir + '/' + 'gogo.mp3';
		signalTime -= 12;
	} else {
		// 午前
		ampmFile = ampmDir + '/' + 'gozen.mp3';
	}
	//
	var hourString = ('00' + signalTime).slice(-2);
	var timeFile = timeVoiceDir + '/' + hourString + '.mp3';
	return ampmFile + ' ' + timeFile;
}

// メロディーファイル取得
function GetRandomFile(Path, fileList){
	var min = 0;
	var max = fileList.length - 1;
	// ランダム選択
	var randomIndex = Math.floor( Math.random() * (max + 1 - min) ) + min ;
	return Path + '/' + fileList[randomIndex];
}

cd /home/pi/Googlehome/timesignal
node ./timesignal.js

59 6-22 * * * sleep 50; /home/pi/Googlehome/timesignal/timesignal.sh >>/tmp/cron.log 2>>/tmp/cronerror.log

const googlehome = require('/google-home-notifier');
const config = require('./config.json');
const http = require('http');
const language = 'ja';

// 受信処理
function googlehome_speak(post_data) {
  const json = JSON.parse(post_data);
  const type = json.type;
  const speakerNumber = json.speakerNumber;
  const message = json.message;
  const speakers = config.speakers;

  if (speakerNumber == 0) {
    // 0:全てのSpeakerで再生
    speakers.forEach(function(speaker, i) {
      SendToSpeaker(speaker, type, message);
    });
  } else {
    // 指定のSpeakerで再生
    SendToSpeaker(speakers[speakerNumber], type, message);
  }
}

// google-home-notifierでコマンド送信
function SendToSpeaker(speaker, type, message) {  
  googlehome.device(speaker.name, language);
  googlehome.ip(speaker.ip);

  switch (type) {
    case "text":
      googlehome.notify(message, function (res) {
        //
      });
      break;
    case "sound":
      googlehome.play(message, function(res) {
        //
      });
      break;
  }
}

// Webサーバー
http.createServer(function (request, response) {
  let post_data = '';

  request.on('data', function (chunk) {
    post_data += chunk;
  });
  request.on('end', function () {
    // 発声/再生
    googlehome_speak(post_data);    
    // 表示ログ
    response.writeHead(200, { 'Content-Type': 'text/plain' });
    response.end();
  });
}).listen(config.server_port);

{
    "server_port": "xxxx",
    "speakers":
    [
        {
            "ip": "xxx.xxx.xxx.xxx",
            "name": "living"       
        },
        {
            "ip": "xxx.xxx.xxx.xxx",
            "name": "xxx"       
        },
        {
            "ip": "xxx.xxx.xxx.xxx",
            "name": "xxx"       
        }      
    ]
}

function doPost(e) {
  // 受信
  var text = e.postData.contents;

  // 転送
  var url = "http://xxx.xxx.xxx.xxx:xxxx";  // 自宅のアドレス（DDNS使うのがお勧め）
  var headers = {
    "Content-Type" : "application/json; charset=UTF-8"
  };
  var options = {
    "method" : "post",
    "headers" : headers,
    "payload" : text
  };
  return UrlFetchApp.fetch(url, options);  
}