(function () {
  var loaded = false;
  var tried = {};

  function toAbsolute(url) {
    try {
      return new URL(url, window.location.href).toString();
    } catch (e) {
      return url;
    }
  }

  function loadNext(candidates, index) {
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      return;
    }

    var src = toAbsolute(candidates[index]);
    if (tried[src]) {
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      return;
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    tried[src] = true;

    var script = document.createElement('script');
    script.src = src;
    script.async = false;
    script.onload = function () {
      loaded = true;
    };
    script.onerror = function () {
      script.remove();
      loadNext(candidates, index + 1);
    };
    document.head.appendChild(script);
  }

  var rootPath = (window.shaarli && window.shaarli.rootPath) || '';
  var basePath = (window.shaarli && window.shaarli.basePath) || '';
  var assetPath = (window.shaarli && window.shaarli.assetPath) || '';

  var candidates = [];

  if (assetPath) {
    candidates.push(assetPath.replace(/\/tpl\/shaarli-pro\/?$/, '/tpl/default') + '/js/metadata.min.js');
  }

  if (basePath) {
    candidates.push(basePath + '/tpl/default/js/metadata.min.js');
    candidates.push(basePath + '/js/metadata.min.js');
  }

  if (rootPath) {
    candidates.push(rootPath + '/tpl/default/js/metadata.min.js');
    candidates.push(rootPath + '/js/metadata.min.js');
  }

  candidates.push('/js/metadata.min.js');
  candidates.push('/tpl/default/js/metadata.min.js');

  loadNext(candidates, 0);
})();