// getIndefiniteArticle.js

(function () {
  /* global AdventureJS A */

  var p = AdventureJS.Dictionary.prototype;

  p.vowel_exceptions = /^(honest|honor|honour|hour|heir)\b/i;

  p.consonant_exceptions = /^(uni([^nmd]|$)|use|user|usual|euro|one|once)\b/i;

  /**
   * Get an indefinite article for the specified string.
   * @memberOf AdventureJS.Dictionary
   * @method AdventureJS.Dictionary#getIndefiniteArticle
   * @param {String} name
   */
  p.getIndefiniteArticle = function Dictionary_conjugate(name) {
    const text = name.trim();

    if (this.vowel_exceptions.test(text)) {
      return "an";
    }

    if (this.consonant_exceptions.test(text)) {
      return "a";
    }

    return /^[aeiou]/i.test(text) ? "an" : "a";
  };
})();