const fs = require('fs');
const https = require('https');
const crypto = require('crypto');

const authUtils = require('./utils/auth-utils');

const serverConfig = {
 protocol: 'https:',
 hostname: 'translate.rozetta-api.io',
 port: 443
};
const authConfig = {
 accessKey: 'ACCESS_KEY',
 secretKey: 'SECRET_KEY',
 nonce: Date.now().toString()
};
const data = {
 text: 'こんにちは、いい天気ですね。',
 targetLang: 'ja',
 contractId: 'your contractId'
};
const speechFile = 'speech.wav';

const getSpeechResult = (serverConfig, authConfig, data) => {
 const path = '/api/v1/translate/tts';
 const signature = authUtils.generateSignature(
   path,
   authConfig.secretKey,
   authConfig.nonce
 );
 const requestOptions = {
   protocol: serverConfig.protocol,
   host: serverConfig.hostname,
   port: serverConfig.port,
   method: 'POST',
   path,
   headers: {
     accessKey: authConfig.accessKey,
     signature,
     nonce: authConfig.nonce,
     'Content-Type': 'application/json'
   }
 };

 return new Promise((resolve, reject) => {
   const request = https.request(requestOptions, (response) => {
     const writeStream = fs.createWriteStream(speechFile);
     response.pipe(writeStream);
     response.on('close', () => {
       resolve();
     });
   });
   request.on('error', (error) => {
     reject(error);
   });
   request.write(JSON.stringify(data));
   request.end();
 });
};

const main = async () => {
 try {
   await getSpeechResult(serverConfig, authConfig, data);
   console.log('Speech file downloaded to:');
   console.log(speechFile);
 } catch (error) {
   console.error(error);
 }
};

main();