/*
 * Czerwony Konik - shop
 *
 * Copyright (c) 2008 Czerwony Konik
 *
 */

// common

	function replaceAll( str, from, to ) {
	    var idx = str.indexOf( from );
	    while ( idx > -1 ) {
	        str = str.replace( from, to );
	        idx = str.indexOf( from );
	    }
	    return str;
	}

	function getParameter(name) {
		var url = window.location.href;
		var paramsStart = url.indexOf("?");

		if (paramsStart != -1)
		{
			var paramString = url.substr(paramsStart + 1);
			var tokenStart = paramString.indexOf(name);

			if (tokenStart != -1)
			{
				paramToEnd = paramString.substr(tokenStart + name.length + 1);
				var delimiterPos = paramToEnd.indexOf("&");

				if(delimiterPos == -1)
				{
					paramToEnd = replaceAll(paramToEnd, "%20", " ");
					return paramToEnd;
				}
				else 
				{
					paramToEnd = paramToEnd.substr(0, delimiterPos)
					paramToEnd = replaceAll(paramToEnd, "%20", " ");
					return paramToEnd;
				}
			}
		}
	}
	
// shop

 var ALL_BOOKS_COUNT = 5;

 function calcPrice(book_no) {
 	var value = $("#book" + book_no + "_count").val() * $("#book" + book_no + "_price").text();
	$("#book" + book_no + "_total").text(getPriceValue(value));
 }

 function calcTotalPrice() {
 	var total = 0;
 	for (i = 1; i <= ALL_BOOKS_COUNT; i++) {
		calcPrice(i);
		
		total += 1 * $("#book" + i + "_total").text();
		
	}
	if ($("#_order_type_transfer").attr("checked")) {
		$("#delivery_price").text($("#transferPrice").text());
	} else {
		$("#delivery_price").text($("#ondeliveryPrice").text());
	}
	if (getPriceValue(total) > 0) {
		total += 1 * $("#delivery_price").text();
	}
	$("#books_total").text(getPriceValue(total));
	refreshSendOrder();	
 
 
 }
 
 function getPriceValue(value) {
 	if (isNaN(value)) {
		return 0;
	} else {
		return value;
	} 
 }
 
 function refreshSendOrder() {
 	if (!isValid() || ($("#books_total").text() == 0)) {
		$("#send_order").attr("disabled", "disabled");		
	} else {
		$("#send_order").removeAttr("disabled");
	}
 }
 
 function isValid() {
 	return ($(".reqAware[value='']").length == 0);
 }
 
 function validateField(field) {
 	if (field.val() == "") {
		field.addClass("req");
	} else {
		field.removeClass("req");
	}
	refreshValidationMessage();
 }
 
 function refreshValidationMessage() {
	if ($(".reqAware").hasClass("req")) {
		$("#validation").show();
	} else {
		$("#validation").hide();	
	}
	refreshSendOrder();
 }

 function install() {
 	for (i = 1; i <= ALL_BOOKS_COUNT; i++) {
		$("#book" + i + "_count").change(function() {
			calcTotalPrice();
		});
	}
	$("#_order_type_transfer").add("#_order_type_ondelivery").change(function() {
		calcTotalPrice();
	});
	calcTotalPrice();
 	$(".reqAware").blur(function() {
		validateField($(this));
	});
	// show error
	var error = getParameter('error');
	if (typeof error != 'undefined') {
		$("#errorInfo").text(error).show();
	} else {
		$("#errorInfo").hide();
	}
	
 }
 

$(document).ready(function() {
	install();
});