text: #!/usr/bin/env node
  const fs = require('fs');
  const moment = require('moment');
  
  const config = require('./config');
  
  const tweets = require(config.tweetsPath);
  const tweetsIndex = new Set(tweets.map(({ img }) => img));
  
  let lastDate = '';
  const newTweets = fs
  	.readdirSync(`${config.serverDataDir}/img`)
  	.filter(file => /\d+-\d+-\d+\.\d+.jpg$/.test(file))
  	.filter(file => !tweetsIndex.has(file))
  	.map(file => {
  		const m = moment(file, 'YYYY-MM-DD');
  		let issue = 'Morgen-Ausgabe';
  		let sendTime = '10:35';
  		if (m.format('YYYY-MM-DD') === lastDate) {
  			issue = 'Abend-Ausgabe';
  			sendTime = '18:35';
  		}
  		lastDate = m.format('YYYY-MM-DD');
  		const mToday = moment(file, 'YYYY-MM-DD').add(100, 'y');
  		return (tweet = {
  			sendAfter: `${mToday.format('YYYY-MM-DD')} ${sendTime}`,
  			status: `${m.format('DD.MM.YYYY')} http://zefys.staatsbibliothek-berlin.de/kalender/auswahl/date/${m.format(
  				'YYYY-MM-DD'
  			)}/27971740 #1919LIVE`,
  			alt_text: `Berliner Volkszeitung ${m.format('DD.MM.YYYY')} ${issue}`,
  			img: file,
  		});
  	});
  
  const allTweets = [...tweets, ...newTweets];
  allTweets.sort(function(a, b) {
  	return a.sendAfter < b.sendAfter ? -1 : +1;
  });
  
  // console.log("allTweets", allTweets);
  fs.writeFileSync(config.tweetsPath, JSON.stringify(allTweets, null, 2));
  process.stdout.write(`\nwrote file ${config.tweetsPath}\n`);
  