define(['dojo/_base/declare','dojo/_base/array','dojo/_base/lang',
    'dojo/dom-construct','dijit/registry','dijit/_WidgetBase',
    'dijit/_TemplatedMixin','dijit/_WidgetsInTemplateMixin','dijit/_Container',
    'dojo/text!./templates/MultipleChoiceWidget.html',
    'dijit/form/RadioButton','dijit/form/CheckBox','dijit/form/TextBox','dijit/form/Button'
], function(declare,array,lang,domConstruct,registry,_WidgetBase,_TemplatedMixin,
    _WidgetsInTemplateMixin,_Container, templateString,RadioButton,CheckBox,TextBox,Button){
    return declare([_WidgetBase,_TemplatedMixin,_WidgetsInTemplateMixin,_Container],{
        templateString: templateString,
        multiple: true,
        baseClass: 'rftMultipleChoiceWidget',
        
        allowMultiple: false,
        name: '',
        value: null,
        
        _widgetCache: null,
        constuctor: function() {
            this.inherited(arguments);
            this.value = [];
            this._widgetCache = {};
        },
        _setValueAttr: function(value) {
            this.reset();
            this.value = value;
            array.forEach(this.value,lang.hitch(this,function(val){
                this._addRow(val);
            }));
        },
        _getValueAttr: function() {
            var value = [];
            registry.findWidgets(this.domNode).forEach(function(w){
                if ( w.isInstanceOf(TextBox) ) { value.push(w.get('value')); }
            });
            this.value = value;
            return value;
        },
        reset: function() {
            this._removeWidgetsBelowNode(this.rows);
            domConstruct.empty(this.rows);
        },
        _onAddRow: function() {
            this._addRow();
        },
        _addRow: function(value,tagRow,pos) {
            var row = domConstruct.create('div',{className:'row'});
            if ( this.allowMultiple ) {
                new CheckBox({
                    name:this.name,
                    className:'rowBox',
                    disabled: this.mode === 'edit'
                }).placeAt(row);
            } else {
                new RadioButton({
                    name:this.name,
                    className:'rowBox',
                    disabled: this.mode === 'edit'
                }).placeAt(row);
            }
            new TextBox({
                name:this.name,
                value:value || '',
                className:'rowText'
            }).placeAt(row);
            new Button({
                label:'-',
                className:'rowBtn',
                onClick:lang.hitch(this,'_removeNodeWithWidgets',row)
            }).placeAt(row);
            new Button({
                label:'+',
                className:'rowBtn',
                onClick:lang.hitch(this,'_addRow','',row,'before')
            }).placeAt(row);
            domConstruct.place(row,tagRow || this.rows,pos||'last');
        },
        _removeNodeWithWidgets: function(node) {
            this._removeWidgetsBelowNode(node);
            domConstruct.destroy(node);
        },
        _removeWidgetsBelowNode: function(node) {
            registry.findWidgets(node).forEach(function(w){
                w.destroyRecursive();
            });
        },
        _onRowChange: function(/*row*/) {}
    });
});