/*
	Multiple character styles
	Version: 1.0
	
    Script by Thomas Silkjær
	http://indesigning.net/
*/


var ts_document = app.documents.item(0);

var ts_conditionCombinations = combine(ts_document.conditions.everyItem().name);

app.findChangeGrepOptions.includeFootnotes = false;
app.findChangeGrepOptions.includeHiddenLayers = false;
app.findChangeGrepOptions.includeLockedLayersForFind = false;
app.findChangeGrepOptions.includeLockedStoriesForFind = false;
app.findChangeGrepOptions.includeMasterPages = false;
app.findGrepPreferences = NothingEnum.nothing;

for(a = 0; a < ts_conditionCombinations.length; a++) {
	
	ts_conditionCurrentCombinations = []
	for(b = 0; b < ts_conditionCombinations[a].length; b++) {
		ts_conditionCurrentCombinations.push(ts_document.conditions.itemByName(ts_conditionCombinations[a][b]));
	}
	
	app.findGrepPreferences.appliedConditions = ts_conditionCurrentCombinations;
	var ts_foundText = ts_document.findGrep();
	
	for(b = 0; b < ts_foundText.length; b++) {
		ts_currentText = ts_foundText[b];
		ts_currentTextProperties = ts_currentText.properties
		
		try {
			for(c = 0; c < ts_conditionCombinations[a].length; c++) {
				var ts_currentCharacterStyle = ts_document.characterStyles.itemByName(ts_conditionCombinations[a][c]);
				var ts_currentCharacterStyleProperties = ts_currentCharacterStyle.properties;
			
				for(d in ts_currentCharacterStyleProperties) {
					if(ts_currentCharacterStyleProperties[d] != NothingEnum.NOTHING
						&& ts_currentCharacterStyleProperties[d] != ts_currentTextProperties[d]
						&& ts_currentCharacterStyleProperties[d] != null
						&& ts_currentCharacterStyleProperties[d] != ""
						&& d != 'basedOn'
						&& d != 'name'
						&& d != 'id'
						&& d != 'parent'
						&& d != 'index'
						&& d != 'imported'
						&& d != 'label'
						&& d != 'properties'
						&& d != 'gradientStrokeStart'
						&& d != 'gradientFillStart') {
						ts_currentText[d] = ts_currentCharacterStyleProperties[d];
					}		  
				}
			}
		} catch(err) {}
	}
}

// Thanks to http://snippets.dzone.com/posts/show/3545
function combine(a) {
  var fn = function(n, src, got, all) {
    if (n == 0) {
      if (got.length > 0) {
        all[all.length] = got;
      }
      return;
    }
    for (var j = 0; j < src.length; j++) {
      fn(n - 1, src.slice(j + 1), got.concat([src[j]]), all);
    }
    return;
  }
  var all = [];
  for (var i=0; i < a.length; i++) {
    fn(i, a, [], all);
  }
  all.push(a);
  return all;
}