/*
Some of these override earlier varien/product.js methods, therefore
varien/product.js must have been included prior to this file.
*/


//Helper function which works out which productId all passed attributes match.
//Assumes array(productIds), array(array(productIds))
Product.Config.prototype.getProductByAttributes = function(productIds, attributes){
    for (var i=0;i<productIds.length;i++) {
        var foundMatchingProduct = true;
        for (var a=0;a<attributes.length;a++) {
            if (attributes[a].indexOf(productIds[i]) == -1) {
                foundMatchingProduct = false;
                break;
            }
        }
        if (foundMatchingProduct) {
            return productIds[i];
        }
    }
    return false;
}

//Determines which simple product the currently selected configurable attributes
//map to
Product.Config.prototype.getMatchingSimpleProduct = function(){

    var childProducts =  this.config.childProducts;
    var childProductIds = [];
    for (var x in childProducts) {
        childProductIds.push(x);
    }

    var attributeProducts = [];
    for(var s=this.settings.length-1;s>=0;s--){
        var selected = this.settings[s].options[this.settings[s].selectedIndex];
        if (!selected.config){
            return false;
        }
        attributeProducts.push(selected.config.products);
    }
    return this.getProductByAttributes(childProductIds, attributeProducts);
}


Product.Config.prototype.getLowestPossiblePrice = function() {
    var childProducts =  this.config.childProducts;
    var minPrice = Infinity;
    var minPriceString = "";
    //Be careful here to return the exact input price value,
    //not some (possibly badly) converted version
    for (var x in childProducts) {
        var thisPrice = Number(childProducts[x]);
        if (thisPrice < minPrice) {
            minPrice = thisPrice;
            minPriceString = childProducts[x];
        }
    }
    return minPriceString;
}


Product.Config.prototype.updateFormProductId = function(productId){
    if (!productId) {
        return false;
    }
    var currentAction = $('product_addtocart_form').action;
    newcurrentAction = currentAction.sub(/product\/\d+\//, 'product/' + productId + '/');
    $('product_addtocart_form').action = newcurrentAction;
    $('product_addtocart_form').product.value = productId;
}


Product.Config.prototype.addParentProductIdToCartForm = function(parentProductId) {
    if (typeof $('product_addtocart_form').cpid != 'undefined') {
        return; //don't create it if we have one..
    }
    var el = document.createElement("input");
    el.type = "hidden";
    el.name = "cpid";
    el.value = parentProductId.toString();
    $('product_addtocart_form').appendChild(el);
}


Product.Config.prototype.showTierPricesBlock = function(productId) {
    config = this.config;
    $$('ul.product-pricing').each(function(label) {
        label.remove();
    });

    if (productId && config.childProductTierPriceHtml[productId]) {
        $$('div.product-options-bottom').each(function(label) {
            label.innerHTML = this.config.childProductTierPriceHtml[productId] + label.innerHTML;
        });
    }
}

Product.Config.prototype.updateSku = function(productId) {
    if (this.config.skuIndex[productId]) {
        $$('.product-ids').each(function(item) {
            item.innerHTML = this.config.skuIndex[productId];
        })
    }
}

Product.Config.prototype.reloadPrice = function() {
    var childProductId = this.getMatchingSimpleProduct();
    if (childProductId){
    	optionsPrice.productPrice = this.config.childProducts[childProductId];
    	optionsPrice.productOldPrice = this.config.childProductsBase[childProductId];
    	optionsPrice.adjustVisibilities();
        optionsPrice.reload();
        optionsPrice.reloadPriceLabels(true);
        this.updateFormProductId(childProductId);
        this.addParentProductIdToCartForm(this.config.productId);
        this.showTierPricesBlock(childProductId);
        this.updateSku(childProductId);
        this.showCustomOptionsBlock(childProductId, this.config.productId);
    } else {
//        optionsPrice.productPrice = this.getLowestPossiblePrice();
    	optionsPrice.productPrice = this.config.basePrice;
    	optionsPrice.productOldPrice = this.config.oldPrice;
    	optionsPrice.adjustVisibilities();
        optionsPrice.reload();
        optionsPrice.reloadPriceLabels(false);
        this.showTierPricesBlock(false);
        this.updateSku(this.config.productId);
        this.showCustomOptionsBlock(false, false);
    }
}


Product.Config.prototype.showCustomOptionsBlock = function(productId, parentId) {
    var coUrl = this.config.ajaxBaseUrl + "co/?id=" + productId + '&pid=' + parentId;
    var prodForm = $('product_addtocart_form');
    
    Effect.Fade('SCPcustomOptionsDiv', { duration: 0.5, from: 1, to: 0.5 });
    if(productId) {
        //Uncomment the line below if you want an ajax loader to appear while any custom 
        //options are being loaded.
        $$('.scp-please-wait').each(function(el) {el.show()});
        
        //prodForm.getElements().each(function(el) {el.disable()});
        new Ajax.Updater('SCPcustomOptionsDiv', coUrl, {
          method: 'get',
          evalScripts: true,
          onComplete: function() {
              $$('.scp-please-wait').each(function(el) {el.hide()});
              Effect.Fade('SCPcustomOptionsDiv', { duration: 0.5, from: 0.5, to: 1 });
              //prodForm.getElements().each(function(el) {el.enable()});
          }
        });
    } else {
        $('SCPcustomOptionsDiv').innerHTML = '<div style="clear: both;">&nbsp;</div>';
        window.opConfig = new Product.Options([]);
    }
};




Product.OptionsPrice.prototype.reloadPriceLabels = function(productPriceIsKnown) {
	// changed this so the label will actually remain in the layout to prevent jumping,
	// but will instead be made invisible.
	var priceSpanId = 'configurable-price-from-' + this.productId;
	var duplicatePriceSpanId = priceSpanId + this.duplicateIdSuffix;

	if ($(priceSpanId)) {
		if (productPriceIsKnown) {
			$(duplicatePriceSpanId).setStyle({'visibility': 'hidden'});
		} else {
			$(duplicatePriceSpanId).setStyle({'visibility': 'visible'});
		}
	}
	
	if ($(duplicatePriceSpanId)) {
		if (productPriceIsKnown) {
			$(duplicatePriceSpanId).setStyle({'visibility': 'hidden'});
		} else {
			$(duplicatePriceSpanId).setStyle({'visibility': 'visible'});
		}
	}
	
//    var priceLabel = '';
//    if (!productPriceIsKnown) {
//        priceLabel = spConfig.config.priceFromLabel;
//    }
//
//    var priceSpanId = 'configurable-price-from-' + this.productId;
//    var duplicatePriceSpanId = priceSpanId + this.duplicateIdSuffix;
//
//    $(priceSpanId).select('span.configurable-price-from-label').each(function(label) {
//        label.innerHTML = priceLabel;
//    });
//
//    if ($(duplicatePriceSpanId) && $(duplicatePriceSpanId).select('span.configurable-price-from-label')) {
//        $(duplicatePriceSpanId).select('span.configurable-price-from-label').each(function(label) {
//            label.innerHTML = priceLabel;
//        });
//    }
};

Product.OptionsPrice.prototype.adjustVisibilities = function() {
	if (this.productPrice == this.productOldPrice) {
		$$('.old-price').invoke('setStyle', {'visibility': 'hidden'});
	} else {
		$$('.old-price').invoke('setStyle', {'visibility': 'visible'});
	}
};