// joinPhrasalVerbNounPrepPrepNouns.js

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

  var p = adventurejs.Parser.prototype;

  /**
   * <p>
   * Search input for verb phrases in the format of
   * "verb noun preposition preposition noun".
   * We compare the input string against entries in
   * dictionary.verb_noun_prep_prep_nouns,
   * which was populated by Verb definitions.
   * If we find a set of words that match an entry,
   * we save a record for use with future verb logic.
   * </p>
   * <p>
   * For example:<br>
   * <code class="property">"take skateboard from under bed"</code>
   * is identified as
   * <code class="property">"take_from skateboard bed"</code>
   * </p>
   * @memberOf adventurejs.Parser
   * @method adventurejs.Parser#joinPhrasalVerbNounPrepPrepNouns
   * @param {String} input Player input.
   * @returns {String}
   */
  p.joinPhrasalVerbNounPrepPrepNouns =
    function Parser_joinPhrasalVerbNounPrepPrepNouns(input) {
      for (
        var i = 0;
        i < this.dictionary.verb_noun_prep_prep_nouns.length;
        i++
      ) {
        var verb_phrase = this.dictionary.verb_noun_prep_prep_nouns[i][0];
        var verb_id = this.dictionary.verb_noun_prep_prep_nouns[i][1];
        var verb = verb_phrase.split(" ")[0];
        var prep1 = verb_phrase.split(" ")[1];
        var prep2 = verb_phrase.split(" ")[2];

        /**
         * Valid chars are alphanumeric, plus:
         * " " spaces, used as delimeters
         * "_" underscores, used to serialize compound names
         * "," commas, stripped from input but then used with multiple search results
         * "=" used with multiple search results
         * "&" used with multiple search results
         */
        var search =
          verb +
          " ([,_=&A-Za-z0-9]*) " +
          prep1 +
          " " +
          prep2 +
          " ([,_=&A-Za-z0-9]*)";

        var regex = new RegExp(search, "g");
        var replaced = input.replace(regex, verb_id + " $1 $2");
        if (replaced !== input) {
          // save a record of the original input
          this.input_history[0].input_verb = verb_id;
          this.input_history[0].verb_phrase = verb_phrase;
          this.input_history[0].verb_phrase_prepositions = `${prep1} ${prep2}`;
          this.input_history[0].verb_phrasal_pattern =
            "verb_noun_prep_prep_noun";

          // this version replaces the verb with the verb phrase
          input = replaced;

          // this version replaces the verb with the verb id
          // if (verb !== verb_id) {
          //   input = input.replace(verb, verb_id);
          // }
          break;
        }
      }

      this.game.log(
        "L1256",
        "log",
        "high",
        "joinPhrasalVerbNounPrepPrepNouns.js > return: " + input,
        "Parser"
      );
      return input;
    };
})();