YUI.add('plugin-dt-accordion', function(Y){

Y.Node.prototype.wrapInner = function(html) {
    var n = Y.Node.create(html);
    this.setData('preWrappedContent', this.getContent())
    n.prepend(this.getData('preWrappedContent'));
    this.setContent(n);
    return this;
};

var CLASS_OPEN = 'dta-toggle-open',
    CLASS_CLOSE = 'dta-toggle-closed';


Y.namespace('Plugin').DTAccordion = Y.Base.create('dt-accordion', Y.Plugin.Base, [], {

    _host : null,

    _delegate : null,

    _anim : null,

    initializer : function() {
        Y.log('initializer', 'info', 'Y.Plugin.DTAccordion');
        this._host = this.get('host');


        this.renderUI();
        this.bindUI();

    },


    destructor : function() {
        this.unrenderUI();
        this.unbindUI();
    },

    renderUI : function() {
        this._host.all('dt').each(function(dt){
            dt.wrapInner('<a />').one('a').append('<span />');
            dt.addClass(CLASS_CLOSE);
        });
        this._host.all('dd').addClass(CLASS_CLOSE).plug(Y.Plugin.NodeFX, {from: {}, to:{}, on:{}, duration: .3, easing: Y.Easing.easeOut});
    },

    bindUI : function() {

        this._delegate = this._host.delegate('click', function(e){
            var dt = e.currentTarget,
                dd = dt.next('dd');

            if (dd.fx.get('running')) {
                dd.fx.pause();
            }

            dd.fx.set('from.height', dd.get('offsetHeight'));

            if (dt.hasClass(CLASS_CLOSE)) {
                dt.replaceClass(CLASS_CLOSE, CLASS_OPEN);
                dd.fx.set('to.height', dd.get('scrollHeight'));
                dd.fx.set('on.complete', function(){
                    dd.replaceClass(CLASS_CLOSE,CLASS_OPEN);
                });
            } else {
                dt.replaceClass(CLASS_OPEN,CLASS_CLOSE);
                dd.fx.set('to.height', 0);
                dd.fx.set('on.complete', function(){
                    dd.replaceClass(CLASS_OPEN, CLASS_CLOSE);
                });
            }

            dd.fx.run();


        }, 'dt');

    },

    unrenderUI : function() {
        this._host.all('.' + CLASS_OPEN + ', .' + CLASS_CLOSE).removeClass(CLASS_OPEN).removeClass(CLASS_CLOSE);
        this._host.all('dt').each(function(dt){
            dt.setContent(dt.getData('preWrappedContent'));
        });
    },

    unbindUI : function() {
        this._delegate.detach();
    }




}, {
    NS : 'dta',
    ATTRS : {
    }
});

}, '1.0', {requires: ['base-build','plugin','node','event', 'anim']});