// checking if IE: this variable will be understood by IE: isIE = !false
isIE = /*@cc_on!@*/false;

Control.Slider.prototype.setDisabled = function()
{
    this.disabled = true;

    if (!isIE)
    {
        this.track.parentNode.className = this.track.parentNode.className + ' disabled';
    }
};

function ajaxnav_hide_products()
{
    var items = $('narrow-by-list').select('a', 'input');
    n = items.length;
    for (i=0; i<n; ++i){
        items[i].addClassName('ajaxnav-disabled');
    }

    if (typeof(ajaxnav_slider) != 'undefined')
        ajaxnav_slider.setDisabled();

    var divs = $$('div.ajaxnav-progress');
    for (var i=0; i<divs.length; ++i)
        divs[i].show();
}

function ajaxnav_show_products(transport)
{
    var resp = {} ;
    if (transport && transport.responseText){
        try {
            resp = eval('(' + transport.responseText + ')');
        }
        catch (e) {
            resp = {};
        }
    }

    if (resp.products){
        var el = $('ajaxnav-container');
        var ajaxUrl = $('ajaxnav-ajax').value;

        el.update(resp.products.gsub(ajaxUrl, $('ajaxnav-url').value));
        ajaxnav_toolbar_init(); // reinit listeners

        $('ajaxnav-navigation').update(resp.layer.gsub(ajaxUrl, $('ajaxnav-url').value));

        $('ajaxnav-ajax').value = ajaxUrl;
    }

    var items = $('narrow-by-list').select('a','input');
    n = items.length;
    for (i=0; i<n; ++i){
        items[i].removeClassName('ajaxnav-disabled');
    }
    if (typeof(ajaxnav_slider) != 'undefined')
        ajaxnav_slider.setEnabled();
}

function ajaxnav_add_params(k, v, isSingleVal)
{
    var el = $('ajaxnav-params');
    var params = el.value.parseQuery();

    var strVal = params[k];
    if (typeof strVal == 'undefined' || !strVal.length){
        params[k] = v;
    }
    else if('clear' == v ){
        params[k] = 'clear';
    }
    else {
        if (k == 'price')
            var values = strVal.split(',');
        else
            var values = strVal.split('-');

//        var values = strVal.split('-');
        if (-1 == values.indexOf(v)){
            if (isSingleVal)
                values = [v];
            else
                values.push(v);
        }
        else {
            values = values.without(v);
        }

        params[k] = values.join('-');
    }

   el.value = Object.toQueryString(params).gsub('%2B', '+');
}



function ajaxnav_make_request()
{
    ajaxnav_hide_products();

// tmp
    var params = $('ajaxnav-params').value.parseQuery();
    if (!params['dir']) {
        $('ajaxnav-params').value += '&dir=' + 'desc';
    }
// tmp

    new Ajax.Request($('ajaxnav-ajax').value + '?' + $('ajaxnav-params').value,
        {method: 'get', onSuccess: ajaxnav_show_products}
    );

    return false;
}


function ajaxnav_update_links(evt, className, isSingleVal)
{
    var link = Event.findElement(evt, 'A'),
        sel = className + '-selected';

    if (link.hasClassName(sel))
        link.removeClassName(sel);
    else
        link.addClassName(sel);

    //only one  price-range can be selected
    if (isSingleVal){
        var items = $('narrow-by-list').getElementsByClassName(className);
        var i, n = items.length;
        for (i=0; i<n; ++i){
            if (items[i].hasClassName(sel) && items[i].id != link.id)
                items[i].removeClassName(sel);
        }
    }

    ajaxnav_add_params(link.id.split('-')[0], link.id.split('-')[1], isSingleVal);

    ajaxnav_make_request();

    Event.stop(evt);
}


function ajaxnav_attribute_listener(evt)
{
    ajaxnav_add_params('p', 'clear', 1);
    ajaxnav_update_links(evt, 'ajaxnav-attribute', 0);
}

function ajaxnav_icon_listener(evt)
{
    ajaxnav_add_params('p', 'clear', 1);
    ajaxnav_update_links(evt, 'ajaxnav-icon', 0);
}

function ajaxnav_price_listener(evt)
{
    ajaxnav_add_params('p', 'clear', 1);
    ajaxnav_update_links(evt, 'ajaxnav-price', 1);
}

function ajaxnav_clear_listener(evt)
{
    var link = Event.findElement(evt, 'A'),
        varName = link.id.split('-')[0];

    ajaxnav_add_params('p', 'clear', 1);
    ajaxnav_add_params(varName, 'clear', 1);

    if ('price' == varName){
        var from =  $('ajaxnav-price-from'),
            to   = $('ajaxnav-price-to');

        if (Object.isElement(from)){
            from.value = from.name;
            to.value   = to.name;
        }
    }

    ajaxnav_make_request();

    Event.stop(evt);
}


function ajaxnav_round(num){
    num = parseFloat(num);
    if (isNaN(num))
        num = 0;

    return Math.round(num);
}

function ajaxnav_price_input_listener(evt){
    if (evt.type == 'keypress' && 13 != evt.keyCode)
        return;

    var numFrom = ajaxnav_round($('ajaxnav-price-from').value),
        numTo   = ajaxnav_round($('ajaxnav-price-to').value);

    if ((numFrom<0.01 && numTo<0.01) || numFrom<0 || numTo<0)
        return;

    ajaxnav_add_params('p', 'clear', 1);
    ajaxnav_add_params('price', numFrom + ',' + numTo, true);
    ajaxnav_make_request();
}


function ajaxnav_category_listener(evt){
    ajaxnav_add_params('p', 'clear', 1);
    ajaxnav_update_links(evt, 'ajaxnav-category', 1);
}

function ajaxnav_toolbar_listener(evt){
    ajaxnav_toolbar_make_request(Event.findElement(evt, 'A').href);
    Event.stop(evt);
}

function ajaxnav_toolbar_make_request(href)
{
    var pos = href.indexOf('?');
    if (pos > -1){
        $('ajaxnav-params').value = href.substring(pos+1, href.length);
    }
    ajaxnav_make_request();
}


function ajaxnav_toolbar_init()
{
//    var items = $('ajaxnav-container').select('.pages a', '.view-by a');
    var items = $('ajaxnav-container').select('.pages a', '.view-mode a', '.view-by a', '.sort-by a');
    var i, n = items.length;
    for (i=0; i<n; ++i){
        Event.observe(items[i], 'click', ajaxnav_toolbar_listener);
    }
}

function ajaxnav_clearall_listener(evt)
{
    var params = $('ajaxnav-params').value.parseQuery();
    $('ajaxnav-params').value = 'ajaxnavclear=true';
    if (params['q'])
    {
        $('ajaxnav-params').value += '&q=' + params['q'];
    }
    ajaxnav_make_request();
    Event.stop(evt);
}

function ajaxnav_init()
{
    var items, i, j, n,
        classes = ['category', 'attribute', 'icon', 'price', 'clear', 'clearall'];

    for (j=0; j<classes.length; ++j){
        items = $('narrow-by-list').select('.ajaxnav-' + classes[j]);
        n = items.length;
        for (i=0; i<n; ++i){
            Event.observe(items[i], 'click', eval('ajaxnav_' + classes[j] + '_listener'));
        }
    }

// start new fix code
    items = $('narrow-by-list').select('.ajaxnav-price-input-id');

    n = items.length;

    var btn = $('ajaxnav-price-go');
    if (Object.isElement(btn)){
        Event.observe(btn, 'click', ajaxnav_price_input_listener);
        Event.observe($('ajaxnav-price-from'), 'keypress', ajaxnav_price_input_listener);
        Event.observe($('ajaxnav-price-to'), 'keypress', ajaxnav_price_input_listener);
    }
// finish new fix code
}


function ajaxnav_create_slider(width, from, to, max_price)
{
    var price_slider = $('ajaxnav-price-slider');

    return new Control.Slider(price_slider.select('.handle'), price_slider, {
      range: $R(0, width),
      sliderValue: [from, to],
      restricted: true,

      onChange: function (values){
        var f = ajaxnav_round(max_price*values[0]/width),
            t = ajaxnav_round(max_price*values[1]/width);

        ajaxnav_add_params('price', f + ',' + t, true);

        // we can change values without sliding
        $('ajaxnav-range-from').update(f);
        $('ajaxnav-range-to').update(t);

        ajaxnav_make_request();
      },
      onSlide: function(values) {
          $('ajaxnav-range-from').update(ajaxnav_round(max_price*values[0]/width));
          $('ajaxnav-range-to').update(ajaxnav_round(max_price*values[1]/width));
      }
    });
}

function ajaxnav_calculate(width, from, to, min_price, max_price, value)
{
    var calculated = ajaxnav_round(((max_price-min_price)*value/width) + min_price);

    return calculated;
}