kpay-install/install.js

Install the latest k-pay lib in your Fitbit app/clockface

#!/usr/bin/env node

const [,, ...args] = process.argv

if(args.length < 4) {
    console.error('Usage : kpay-install [apikey] [appName] [fitbit-developer-id] [fitbit-app-cluster-id] [(optional)libVersion]')
    return
}

const fs       = require('fs')
const unzip    = require('unzip')
const request  = require('request')
const mkdirp   = require('mkdirp');
const readline = require('readline2');

const projectDir = process.env.INIT_CWD || require('path').resolve(".")

const apikey  = args[0]
const appName = args[1]
const fitbitDeveloperId = args[2]
const fitbitAppClusterId = args[3]

var fitbitLibVersion = null;
if (args.length >= 5) {
	fitbitLibVersion = args[4]
}

var requestUrl = `https://api.k-pay.io/api/merchant/downloadlib/?platform=fitbit&key=${apikey}&appname=${encodeURI(appName)}&fitbitDeveloperId=${encodeURI(fitbitDeveloperId)}&fitbitAppClusterId=${encodeURI(fitbitAppClusterId)}`;
if (fitbitLibVersion) {
	requestUrl += `&fitbitLibVersion=${encodeURI(fitbitLibVersion)}`;
}

console.log(`Checking k-pay for ${appName}`)

request(requestUrl, 
function (error, _, body) {
    if (error) {
        console.error("ERROR:" + error);
        return;
    }

    var resp = JSON.parse(body);
    if (resp && resp.success && resp.url) {
        downloadAndInstallLib(resp.url);
    }
    else if (resp && resp.error) {
        console.error("ERROR: " + resp.error);
    }
    else {
        console.error("Unknown error...");
    }
});

function downloadAndInstallLib(url) {
    console.log(`Downloading k-pay lib for ${appName}`)
    request(url)
    .on('response', (response) => {
        if(response.statusCode === 200) {
            console.log(`Installing...`)
            response.pipe(unzip.Parse())
            .on('entry', (entry) => {
                var fileName = entry.path
                if (fileName === 'app/kpay/kpay_config.js' && fs.existsSync(projectDir + '/' + fileName)) {
                    const rl = readline.createInterface({
                        input: process.stdin,
                        output: process.stdout
                    })
                    rl.question('Do you want to overwrite your existing app/kpay/kpay_config.js? (y/N) ', (answer) => {
                        if(answer === 'y') {
                            entry.pipe(fs.createWriteStream(fileName))
                        }
                        else {
                            entry.autodrain()
                        }
                        rl.close()
                    })
                }
                else if (entry.type === 'Directory') {
                    if (fileName.includes('kpay') || !fs.existsSync(projectDir + '/' + fileName)) {
                        mkdirp.sync(projectDir + '/' + fileName)
                    }
                    if (fileName.includes('i18n') || !fs.existsSync(projectDir + '/' + fileName)) {
                      mkdirp.sync(projectDir + '/' + fileName)
                    }
                    entry.autodrain()
                }
                else if (entry.type === 'File') {
                    if (fileName.includes('kpay') || !fs.existsSync(projectDir + '/' + fileName)) {
                        entry.pipe(fs.createWriteStream(fileName))
                    }
                    if (fileName.includes('i18n') || !fs.existsSync(projectDir + '/' + fileName)) {
                      entry.pipe(fs.createWriteStream(fileName))
                    }
                }                 
                else {
                    entry.autodrain()
                }
            })
        }
        else {
            console.error(`ERROR : ${response.body}`)
        }
    })
    .on('error', (err) => console.error(err))
}