Service Status

#!/usr/bin/env /usr/local/bin/node
const https = require('https');

// <xbar.title>Service Status</xbar.title>
// <xbar.version>v1.0</xbar.version>
// <xbar.author>Vitaly Emelyanov</xbar.author>
// <xbar.author.github>VitalyEmelyanov</xbar.author.github>
// <xbar.desc>Simple plugin to monitor your services/websites availability</xbar.desc>
// <xbar.image>https://hsto.org/webt/dd/yv/qn/ddyvqnycz-hytbdolo5ti48pii4.png</xbar.image>
// <xbar.dependencies>nodejs</xbar.dependencies>

// Customize as you wish!
const services = [
  {name: 'Example', url: 'https://example.com'},
];

// Emoji statuses
const successStatus = '🟢|size=10';
const warningStatus = '🟠|size=10';
const errorStatus = '🔴|size=10';

// Text statuses - replace emoji if you want
// const successStatus = '●|color=green';
// const warningStatus = '●|color=orange';
// const errorStatus = '●|color=red';

function main() {
  Promise.all(services.map(checkStatus))
      .then(serviceStatuses => {
        const allSuccess = serviceStatuses.every(s => s.status === 'success');
        const allError = serviceStatuses.every(s => s.status === 'error');

        let globalStatusIcon;

        if (allSuccess) globalStatusIcon = successStatus;
        else if (allError) globalStatusIcon = errorStatus;
        else globalStatusIcon = warningStatus;

        console.log(`${globalStatusIcon}`);
        console.log('---');

        serviceStatuses.forEach(s => {
          const color = s.status === 'success' ? 'green' : 'red';
          console.log(`${s.service.name} |color=${color}`);
          if (s.status === 'success') {
            console.log(`${s.res.statusCode} ${s.res.statusMessage} |size=10`);
          } else {
            console.log(`${s.error} |size=10`);
          }
          console.log('---');
        });

        if (!serviceStatuses.length) console.log('There are no configured services to check!\n---');
      });
}
main();

function checkStatus(service) {
  return new Promise(resolve => {
    const req = https.get(service.url, res => {
      if (res.statusCode === 200) {
        return resolve({status: 'success', res, service})
      }
      return resolve({status: 'error', error: `${res.statusCode} ${res.statusMessage}`, service})
    });
    req.on('error', error => resolve({status: 'error', error, service}));
    req.end();

    setTimeout(() => {
      resolve({status: 'error', error: 'Request timeout', service});
      req.abort();
    }, 3000)
  });
}