var timer = setInterval(function () {
  bar.tick();
  if (bar.complete) {
    console.log('\ncomplete\n');
    clearInterval(timer);
  }
}, 100);

const interruptTimer = setInterval(function () {
  interruptBar.tick();
  if (interruptBar.complete) {
    clearInterval(interruptTimer);
  } else if (interruptBar.curr === 5 || interruptBar.curr === 8) {
    interruptBar.interrupt('interrupt: current progress is ' + interruptBar.curr + '/' + interruptBar.total);
  }
}, 1000);

var timer = setInterval(function () {
  bar.tick();
  if (bar.complete) {
    clearInterval(timer);
  } else if (bar.curr === 5) {
    bar.interrupt('this message appears above the progress bar\ncurrent progress is ' + bar.curr + '/' + bar.total);
  }
}, 1000);

/**
 * Analyzes all of the HTML in 'repos/*' with hydrolysis.
 *
 * Returns a promise of the hydrolysis.Analyzer with all of the info loaded.
 */
async function analyzeRepos() {
  const dirs = fs.readdirSync('repos/');
  const htmlFiles: string[] = [];

  for (const dir of dirs) {
    for (const fn of fs.readdirSync(path.join('repos', dir))) {
      if (/index\.html|dependencies\.html/.test(fn) || !fn.endsWith('.html')) {
        continue;
      }
      // We want to ignore files with 'demo' in them, unless the element's
      // directory has the word 'demo' in it, in which case that's
      // the whole point of the element.
      if (!/\bdemo\b/.test(dir) && /demo/.test(fn)) {
        continue;
      }
      htmlFiles.push(path.join('repos', dir, fn));
    }
  }

  function filter(repo: string) { return !existsSync(repo); }

  // This code is conceptually simple, it's only complex due to ordering
  // and the progress bar. Basically we call analyzer.metadataTree on each
  // html file in sequence, then finally call analyzer.annotate() and return.
  const analyzer =
      await hydrolysis.Analyzer.analyze('repos/polymer/polymer.html', {filter});

  const progressBar = new ProgressBar(
      `:msg [:bar] :percent`,
      {total: htmlFiles.length + 1, width: progressBarWidth});

  for (const htmlFile of htmlFiles) {
    await analyzer.metadataTree(htmlFile);
    const msg = pad(
        `Analyzing ${htmlFile.slice(6)}`, progressMessageWidth, {strip: true});
    progressBar.tick({msg});
  }


  progressBar.tick(
      {msg: pad('Analyzing with hydrolysis...', progressMessageWidth)});
  analyzer.annotate();
  return analyzer;
}

 output.urls.forEach((mapping:UrlMapping) => {
     this.renderDocument(output.createPageEvent(mapping));
     bar.tick();
 });

 }, state => {
     bar.tick(state.percentage);
 });

 cp.on('exit', () => {
     bar.tick(100);
     clearInterval(cpInterval);
     cloneOnObjectsFetched();
 });

 let cpInterval = setInterval(() => bar.tick(0), 100);

var ProgressBar = require('progress');


/**
 * Usage example from https://github.com/tj/node-progress
 */
var bar = new ProgressBar(':bar', { total: 10 });
var timer = setInterval(function () {
  bar.tick();
  if (bar.complete) {
    console.log('\ncomplete\n');
    clearInterval(timer);
  }
}, 100);


/**
 * Custom token example from https://github.com/tj/node-progress
 */
var bar = new ProgressBar(':current: :token1 :token2', { total: 3 });

bar.tick({
  'token1': "Hello",
  'token2': "World!\n"
});

bar.tick(2, {
  'token1': "Goodbye",
  'token2': "World!"
});