var minimalPercent = 0.25;

var result = {
  success: false
};

if (crowdin.contentType === 'application/vnd.crowdin.text+plural') {
  var obj = JSON.parse(crowdin.source);

  if (obj[crowdin.context.pluralForm] != null) {
    source = obj[crowdin.context.pluralForm]
  } else {
    source = obj.other
  }
} else {
  source = crowdin.source
}

var translation = crowdin.translation,
  wordsPattern = /[:A-Z_a-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]+/g,
  lengthOfSourceWords = 0,
  lengthOfTranslationWords = 0;

massOfWordsSource = source.match(wordsPattern);
massOfWordsTranslation = translation.match(wordsPattern);

if (Array.isArray(massOfWordsSource) && massOfWordsSource.length) {
  for (var i = 0; i < massOfWordsSource.length; i++) {
    lengthOfSourceWords += massOfWordsSource[i].length
  }
} else {
  result.success = true;
  return result
}

if (Array.isArray(massOfWordsTranslation) && massOfWordsTranslation.length) {
  for (var i = 0; i < massOfWordsTranslation.length; i++) {
    lengthOfTranslationWords += massOfWordsTranslation[i].length
  }
} else {
  result.message = 'Words in translation not found.';
  result.fixes = [];
}

if ((lengthOfTranslationWords / lengthOfSourceWords) < minimalPercent) {
  result.message = 'Translation too short. Current percent "' + (lengthOfTranslationWords / lengthOfSourceWords.toFixed(2)) * 100 + '%", when minimal is "' + minimalPercent * 100 + '%".';
  result.fixes = [];
} else {
  result.success = true;
}

return result;