/*
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--){
	try {
		var selected = this.settings[s].options[this.settings[s].selectedIndex];
	}
	catch (err) {
		break;
	}
	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;
        });
    }
}


/* To display images on selection */
Product.Config.prototype.showImagesBlock = function(productId) {
    config = this.config;
	//$('product-image-zoom').innerHTML = this.config.childProductImageHtml[productId];
	//alert (this.config.childProductImageHtml[productId]);
	//if (this.config.childProductImageHtml[productId]){
		if ( $('preview') ) {
			$('preview').innerHTML = this.config.childProductImageHtml[productId];
		}
	//}
}
/* To display short description on selection */
Product.Config.prototype.showDescriptionBlock = function(productId) {
    config = this.config;
	if ( $('product-desc') ) {
		$('product-desc').innerHTML = this.config.childProductsDesc[productId];
	}
}

Product.Config.prototype.reloadPrice = function() {
    var childProductId = this.getMatchingSimpleProduct();
    if (childProductId){
        optionsPrice.productPrice = this.config.childProducts[childProductId];
        optionsPrice.reload();
        optionsPrice.reloadPriceLabels(true);
		optionsPrice.reloadSku(true);
        this.updateFormProductId(childProductId);
        this.addParentProductIdToCartForm(this.config.productId);
        this.showTierPricesBlock(childProductId);
		// call image block
		//alert(childProductId);
		this.showImagesBlock(childProductId);
		this.showDescriptionBlock(childProductId);
    } else {
        optionsPrice.productPrice = this.getLowestPossiblePrice();
        optionsPrice.reload();
        optionsPrice.reloadPriceLabels(false);
		optionsPrice.reloadSku(false);
        this.showTierPricesBlock(false);
    }
}


Product.OptionsPrice.prototype.reloadPriceLabels = function(productPriceIsKnown) {
    var priceLabel = '';
    if (!productPriceIsKnown) {
        priceLabel = spConfig.config.priceFromLabel;
    }

    var priceSpanId = 'configurable-price-from-' + this.productId;
    var duplicatePriceSpanId = priceSpanId + this.duplicateIdSuffix;
	var priceId = 'product-price-' + this.productId;
	var priceId = 'item_' + this.productId;
	Element.addClassName($(priceId), 'no-display');
    $(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.reloadSku = function(productIsKnown) {
	var skuDivId = 'product-sku';
	if ($(skuDivId) && $(skuDivId).select('span.out-of-stock')) {
		var productSku = '';
		productSku = spConfig.config.childProductsSku[spConfig.getMatchingSimpleProduct()];
		if (!productIsKnown) {
			productSku = spConfig.config.ProductsSku;
		}

		$(skuDivId).select('span.out-of-stock').each(function(label) {
			label.innerHTML = productSku;
		});
	}
}



/****************** ConfigurableToSimple Module - End *************************/