// testVerbSynonyms.js

(function() {
  /*global adventurejs A*/ 
  "use strict";

	var p = adventurejs.Dictionary.prototype;

  /**
   * Takes two verb names and checks to see if they're synonyms. 
   * @memberOf adventurejs.Dictionary
   * @method adventurejs.Dictionary#testVerbSynonyms
   * @kind function
   * @param  {String} word1 An unclassed verb object.
   * @returns {Verb} The constructed verb
   */
   p.testVerbSynonyms = function Dictionary_testVerbSynonyms( word1, word2 ) 
  {
		var prop, testword;

		// this is a private function so input is probably trustworthy
		if( word1 === word2 ) 
    {
			return true;
		}

		// check that both are strings
		if( "string" !== typeof word1 || "string" !== typeof word2 ) 
    {
			// warn because input is bad
			console.warn( 
				"synonyms function takes two strings, but received:", word1, word2 
			);
			return false;
		}

		// check if both verbs are undefined
		if( "undefined" === typeof this.verb_lookup[word1] && "undefined" === typeof this.verb_lookup[word2] ) 
    {
			// warn because input is bad
			console.warn( 
				"Neither " + word1 + " nor " + word2 + " were found in the dictionary."
			);
			return false;
		}

		// check that both aren't unique verbs
		if( "undefined" !== typeof this.verb_lookup[word1] && "undefined" !== typeof this.verb_lookup[word2] ) 
    {
			return false;
		}

		if( "undefined" === typeof this.verb_lookup[word1] ) 
    {
			testword = word1;
			prop = word2;
		} 
    else 
    {
			testword = word2;
			prop = word1;
		}

		//console.log( "prop, testword", prop, testword);
    var synonyms = this.verb_lookup[prop].synonyms;

    // error check
    if( "undefined" === typeof synonyms ) return false;

		for(var i = 0; i < synonyms.length;i++) 
    {
			if(testword===synonyms[i]) 
      {
				// found a match, return prop testword of synonym
				return prop;
			}
		}
		return false;
	}
  
}());