//version 1.0.1
var catalogs = new Array();
var enableSubCatalogEvent = true;
var COL_SELECT_ID = 0;
var COL_CATALOG = 1;
var COL_VALUE = 2;
var COL_DESCRIPTION = 3;
var COL_PARENT_SELECT_NAME = 4;
var COL_ON_LOAD = 5;
var COL_FILL_WITH_PARENT_NO_SELECTION = 6;
var COL_CRITERIA_ATTRIBUTE = 7;
var COL_NON_SELECTION_TEXT = 8;

function Child(parentSelect, parentCatalog, childSelect, childCatalog, valueField, descField, key, raiseChildLoadEvent, criteriaAttribute, nonSelectionText){
	this.parentSelect = parentSelect;
	this.parentCatalog = parentCatalog;
	this.childSelect = childSelect;
	this.childCatalog = childCatalog;
	this.valueField = valueField;
	this.descField = descField;
	this.key = key;
	this.raiseChildLoadEvent = raiseChildLoadEvent;
	this.criteriaAttribute = criteriaAttribute;
	this.nonSelectionText = nonSelectionText;
	var self = this;

	
	this.fillSubCatalog = function(request) {
		var arrayResp = request.split('~|~');
		var subCatalogText = arrayResp[1];
		var subCatalog = eval('(' + subCatalogText + ')');
		var selectId = arrayResp[0];
		var raiseChildLoadEvent = arrayResp[2];
		var child = document.getElementById(selectId);
		if (child!=null && child.options!=null) {
			clearSubcatalog(child);
			for(var i = 0; i<subCatalog.length;i++) {
				child.options[child.options.length] = new Option(subCatalog[i].desc,subCatalog[i].id,false, false);
			}
		}	
		
		//clear sub catalogs
		catalog = getCatalogBySelectId(selectId);
		clearChildCatalogs(catalog[COL_SELECT_ID]);
		
		
		if(enableSubCatalogEvent){
			//if onLOad is defined
			if(raiseChildLoadEvent!=null && raiseChildLoadEvent=="true"){
				var event = "loaded" + replaceAllCatalog(replaceAllCatalog(replaceAllCatalog(child.id, ".","_"), "[","_"), "]","_") + "();";
				eval(event);
			}
		}
	}

	
}

function clearSubcatalog(subCatalog) {
	if (!hasOptions(subCatalog)) { return; }
	for (var i=(subCatalog.options.length); i>0; i--) { 
		subCatalog.options[i] = null; 
	}
	subCatalog.selectedIndex = 0;
}

function clearSubcatalogValidateNonSelection(subCatalog, nonSelectionText) {
	clearSubcatalog(subCatalog);
	if(nonSelectionText=="")
		subCatalog.options[0] = null;
}

function hasOptions(obj) {
	if (obj!=null && obj.options!=null) { return true; }
	return false;
}

//finds a composite key for a catalog
function clearChildCatalogs(selectName){
	for(var i = 0; i<catalogs.length;i++) {
		if(catalogs[i][COL_PARENT_SELECT_NAME] == selectName) {
			select = document.getElementById(catalogs[i][COL_SELECT_ID]);
			nonSelectionText =catalogs[i][COL_NON_SELECTION_TEXT];
			clearSubcatalogValidateNonSelection(select, nonSelectionText);
			//review children
			clearChildCatalogs(catalogs[i][COL_SELECT_ID])
		}
	}
}

Child.prototype.charge = function() {
	getParameters = "?parentCatalog=" + this.parentCatalog + "&catalog="+this.childCatalog;
	getParameters = getParameters +	"&id="+this.key+"&childSelect="+this.childSelect;
	getParameters = getParameters +	"&valueField="+this.valueField+"&descField="+this.descField;
	getParameters = getParameters +	"&raiseChildLoadEvent="+this.raiseChildLoadEvent;
	getParameters = getParameters +	"&criteriaAttribute="+this.criteriaAttribute;
	//TODO colocar el url relativo
	url = contextPath + '/catalog';
	 Stk.ajaxGet({
         url: url+getParameters,
         //content: {offset: offset, pageSize: pageSize, dataSetName: dataSetName, attributeNames: fieldAttibutes},
         onSuccess: this.fillSubCatalog,
         onError: function(e){ alert('Something went wrong...' + e.responseText) }
     });
} 

function addRelationship(selectId, catalog,  value, description, parentSelectName, raiseChildLoadEvent, fillWithParentNoSelection, criteriaAttribute, nonSelectionText){
	catalogs.push(new Array(selectId, catalog, value, description, parentSelectName, raiseChildLoadEvent, fillWithParentNoSelection, criteriaAttribute, nonSelectionText));
}

function catalogChange(select, selectId){
		clearChildCatalogs(selectId);
		fillSubCatalogs(select, selectId);
}

function fillSubCatalogs(select, selectId){
	var catalog = getCatalogBySelectId(selectId);
	var catalogName = catalog[COL_CATALOG];
	for(var i = 0; i<catalogs.length;i++) {
		if(catalogs[i][COL_PARENT_SELECT_NAME] == selectId) {
			if(select.options.selectedIndex>0 ||  catalogs[i][COL_FILL_WITH_PARENT_NO_SELECTION]=="true"){
			
				completeKey =  getCompleteKey(catalogs[i][COL_PARENT_SELECT_NAME]);
				if(completeKey.length!=""){
					key =completeKey.substr(0,completeKey.length-3);
				}
				//Get catalog name
				var child = new Child(select, catalog[COL_CATALOG], catalogs[i][COL_SELECT_ID], catalogs[i][COL_CATALOG],
						catalogs[i][COL_VALUE], catalogs[i][COL_DESCRIPTION], key, catalog[COL_ON_LOAD], catalogs[i][COL_CRITERIA_ATTRIBUTE],
						catalogs[i][COL_NON_SELECTION_TEXT]);
				child.charge(); 
			}
		}
	}	
}

function fillCatalog(selectId){
	var catalog = getCatalogBySelectId(selectId);
	var catalogName = catalog[COL_CATALOG];
	
	getParameters = "?catalog="+catalogName;
	getParameters = getParameters +	"&id=''&childSelect="+ selectId;
	getParameters = getParameters +	"&valueField="+catalog[COL_VALUE]+"&descField="+catalog[COL_DESCRIPTION];
	getParameters = getParameters +	"&raiseChildLoadEvent=''";

	url = contextPath + '/catalog';
	
	 Stk.ajaxGet({
         url: url+getParameters,
         onSuccess: this.fillSubCatalog,
         onError: function(e){ alert('Something went wrong...' + e.responseText) }
     });
}

 function fillCatalogData(request) {
	var arrayResp = request.responseText.split('~|~');
	var subCatalogText = arrayResp[1];
	var subCatalog = eval('(' + subCatalogText + ')');
	var selectId = arrayResp[0];
	var raiseChildLoadEvent = arrayResp[2];
	var child = document.getElementById(selectId);
	if (child!=null && child.options!=null) {
		clearSubcatalog(child);
		for(var i = 0; i<subCatalog.length;i++) {
			child.options[child.options.length] = new Option(subCatalog[i].desc,subCatalog[i].id,false, false);
		}
	}	
	
	//clear sub catalogs
	catalog = getCatalogBySelectId(selectId);
	clearChildCatalogs(catalog[COL_SELECT_ID]);
}

//finds a composite key for a catalog
function getCompleteKey(parentSelectName){
	var key = "";
	for(var i = 0; i<catalogs.length;i++) {
		if(catalogs[i][COL_SELECT_ID] == parentSelectName) {
			
			select = document.getElementById(catalogs[i][COL_SELECT_ID])
			key = select.value + "~|~" + getCompleteKey(catalogs[i][COL_PARENT_SELECT_NAME]);
		}
	}
	return key;
}

function getCatalogBySelectId(selectId){
	var catalog;
	for(var i = 0; i<catalogs.length;i++) {
		if(catalogs[i][COL_SELECT_ID] == selectId) {
			catalog = catalogs[i];
		}
	}
	return catalog;
}

function error(){
	alert('error');
}

function replaceAllCatalog( text, busca, reemplaza ){
	   while (text.toString().indexOf(busca) != -1)
	       text = text.toString().replace(busca,reemplaza);
	   return text;
}