/**
 * Send a post request
 */
function send(url, params) {

	// Obtain an XMLHttpRequest instance
  	var req = newXMLHttpRequest();

  	// Set the handler function to receive callback notifications
  	// from the request object
  	var handlerFunction = getReadyStateHandler(req, updateBaskets);
  	req.onreadystatechange = handlerFunction;
  
  	// Open an HTTP POST connection to the shopping cart servlet.
  	// Third parameter specifies request is asynchronous.
  	req.open("POST", url, true);

  	// Specify that the body of the request contains form data
  	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

  	// Send form encoded data stating that I want to add the 
  	// specified item to the cart.
  	var parameters = getParams(params);
  	//log(parameters);
  	req.send(parameters);
}

function getBasketIdFromRequest() {
	var uri = document.location.search;
	if (uri != null && uri != "") {
		uri = uri.substring(1, uri.length);
	} else {
		return null;
	}
	var reqparams = uri.split("&");
	for (var j = 0; j < reqparams.length; j++) {
		if (reqparams[j].search("basketid") > -1) {
			return reqparams[j];
		}
	}
}

function getParams(params) {
	var basketid = document.getElementById("basket-id").value;
	if (basketid != "") {
		var parameters = "basketid="+basketid+"&"+params;
		return parameters;
	}
	return params;
}

function log(parameters) {
	var table = document.getElementById("log");
	table.innerHTML = "";
	var tr = document.createElement("tr");
	table.appendChild(tr);
	var td = document.createElement("td");
	tr.appendChild(td);
	td.innerHTML = parameters;
}

/*
 * Returns a new XMLHttpRequest object, or false if this browser
 * doesn't support it
 */
function newXMLHttpRequest() {

  var xmlreq = false;

  if (window.XMLHttpRequest) {

    // Create XMLHttpRequest object in non-Microsoft browsers
    xmlreq = new XMLHttpRequest();

  } else if (window.ActiveXObject) {

    // Create XMLHttpRequest via MS ActiveX
    try {
      // Try to create XMLHttpRequest in later versions
      // of Internet Explorer

      xmlreq = new ActiveXObject("Msxml2.XMLHTTP");

    } catch (e1) {

      // Failed to create required ActiveXObject

      try {
        // Try version supported by older versions
        // of Internet Explorer

        xmlreq = new ActiveXObject("Microsoft.XMLHTTP");

      } catch (e2) {

        // Unable to create an XMLHttpRequest with ActiveX
      }
    }
  }

  return xmlreq;
}



/**
 * Returns a function that waits for the specified XMLHttpRequest
 * to complete, then passes its XML response
 * to the given handler function.
 * req - The XMLHttpRequest whose state is changing
 * responseXmlHandler - Function to pass the XML response to
 */
function getReadyStateHandler(req, responseXmlHandler) {

  // Return an anonymous function that listens to the 
  // XMLHttpRequest instance
  return function () {

    // If the request's status is "complete"
    if (req.readyState == 4) {
      
      // Check that a successful server response was received
      if (req.status == 200 || req.status == 0) {

        // Pass the XML payload of the response to the 
        // handler function
        responseXmlHandler(req.responseXML);

      } else {

        // An HTTP problem has occurred
        alert("Järjestelmässä tapahtui virhe. Yritä myöhemmin uudelleen. Virhekoodi: " + req.status);
      }
    }
  }
}

function updateBaskets(basketXML) {
	updateBasket(basketXML, "basket-table", false);
	if (document.getElementById("main-basket") != null) {
		updateBasket(basketXML, "main-basket", true);
	}
}

function onloadAction() {
	var basketid = document.getElementById("basket-id").value;
	if (basketid != null && basketid != "") {
		send('/ajax', "handler=basket&action=get");
	}
}


function roundCents(sum) {
	return Math.round(100*sum)/100;
}

/**
 * Update the basket with content from XML
 */
function updateBasket(basketXML, currentTable, modifyView) {
	if (basketXML.getElementsByTagName("success").length > 0) {
		var basketid = document.getElementById("basket-id").value;
		send('/ajax', "handler=basket&action=remove");
		document.location = "/jump?basketID="+basketid;
		return;
	}
	var basket = basketXML.getElementsByTagName("basket")[0];
	var basketid = basket.getAttribute("id");
	var complete = basket.getAttribute("complete");
	document.getElementById("basket-id").value = basketid;
	var div = document.getElementById(currentTable);
	div.innerHTML = "";
	var html = "";
	html += "<form><table width=\"230\" id=\"basket_product\" class=\"extra_basket\">\n";

	var total = 0;
	var addedPriceTotal = 0;
	
	var basketProducts = basket.getElementsByTagName("basketproduct");

	var gotSubscription = false;
	var gotDataSubscription = false;
	var gotDataHandset = false;
	var gotHandset = false;
	var gotAddService = false;
	var gotAccessory = false;
	
	for (var j = 0; j < basketProducts.length; j++) {
		var bp = basketProducts[j];
		var type = bp.getAttribute("type");
		var id = bp.getAttribute("productid");

		if (type == "gsmsubscription") {
			gotSubscription = true;
 			if (id == 641 || id == 642 || id == 731 || id == 732 || id == 790 || (id >= 932 && id <=936)) {
				gotDataSubscription = true;
			}
                }
		else if (type == "handsetmodel") {
			gotHandset = true;
			if (id == 24 || id == 90 || id == 111 || id == 150) {
				gotDataHandset = true;
			}
		}
		else if (type == "bundle") {
			gotHandset = true;
			gotDataHandset = true;
		}
		else if (type == "addservice")
			gotAddService = true;
		else if (type == "accessory")
			gotAccessory = true;
	}	
	
	for (var j = 0; j < basketProducts.length; j++) {
		var bp = basketProducts[j];
		var productid = bp.getAttribute("productid");
		var name = bp.getAttribute("name");
		var type = bp.getAttribute("type");
		var pricelistid = bp.getAttribute("pricelistid");
		var period = bp.getAttribute("period");
		
		var priceElems = bp.getElementsByTagName("priceoption");
		var selectedPrice;
		var params = bp.getElementsByTagName("parameter");
		for (var t=0; t < params.length; t++) {
		    if (params[t].getAttribute("name") == "price_option") {
		        selectedPrice = params[t].getAttribute("value");  
		    }
		}

		var priceOptions = false;
		if (priceElems.length > 1) { priceOptions = true; }

		var addedPrice = null;
		if (bp.getAttribute("addedprice") != null) {
			addedPrice = parseFloat(bp.getAttribute("addedprice"));
		}
		var price = null;
		if (bp.getAttribute("price") != null) {
			price = parseFloat(bp.getAttribute("price"));
		}
 		var count = null;
 		if (bp.getAttribute("count") != null) {
 			count = parseInt(bp.getAttribute("count"));
 		}
 		var accessoryTotal = null;
		var accessoryTotalString = "";
 		if (count != null) {
 			accessoryTotal = addedPrice * count;
 			addedPriceTotal += accessoryTotal;
			accessoryTotalString = accessoryTotalString + 
						roundCents(accessoryTotal);
	                accessoryTotalString = addPadding(accessoryTotalString);
 		}	

		html += "<tr>\n<td colspan=2 align=\"left\" class=\"td1\"><b>" + name + "</b><br>\n";


		var pricingmodel = bp.getAttribute("pricingmodel");

		if (price > 0 && (addedPrice == null || addedPrice == 0) && type != "accessory") {
//			if (! (gotHandset || gotDataHandset || gotAddService)) {
			if (!gotSubscription && period != 0) {
				price = "0.00";
			}
			// 6.4. PRINT PERIOD FOR DEBUGGING			
			// html += "PERIOD: " + period + "<br>";
                        
                        if (period == null || period == 0) {
			  html += price + " &euro;</span>";
			} else {
			  html += price + " &euro;/kk</span>";
			  total += price;
			}
			// total += price;

		} else  if (count == 1){
				html += accessoryTotalString + " &euro;";
 				html += "</span>";
		} else { 
 				html += ""+count+ " kpl / " + addedPrice + " &euro; = " + accessoryTotalString + " &euro;";
 				html += "</span>";
		}

		if (priceOptions) {
	            html += "<br>Valitse laitteen maksutapa:<br><select class=\"korilista\" onChange=\"send('/ajax', 'handler=basket&action=setPrice&type="+ type +
		            "&productid="+ productid +
		            "&pricingmodel=' + this.options[this.selectedIndex].value);\">";
		    for (var k=0; k < priceElems.length; k++) {
		        var opt = priceElems[k];
			var name = "Kertamaksu "+ opt.getAttribute("added_price") + " &euro;";
		        var selected = "";
		        if (opt.getAttribute("id") == selectedPrice) {
		            selected = "selected";
		        } 
  
	                html += "<option "+ selected + " value=\""+ opt.getAttribute("pricingmodel") + "\">"+ name + "</option>";
		    }
		    html += "</select>\n";
		}
		
		if (type == "gsmsubscription") {
            var productElems = bp.getElementsByTagName("fixedterm_product");
            var fixedTermProductOptions = false;
            if (productElems.length > 0) { fixedTermProductOptions = true; }
            if (fixedTermProductOptions) {
                html += "<br />Valitse määräaikaisuuden pituus:	<br />";
                html += "<select class=\"korilista\" id=\"id_new_product\" onChange=\"send('/ajax','handler=basket&action=add&type=gsmsubscription'+ this.options[this.selectedIndex].value);\" >";
                var selected = "";
                for (var k=0; k < productElems.length; k++) {
                    var opt = productElems[k];
                    if (opt.getAttribute("product_id") == selectedPrice) {
                        selected = "selected";
    		        }
                    html += "<option " + selected + " value=\"&productid="+opt.getAttribute("productid")+"&pricelistid=" + opt.getAttribute("pricelistid") + "&basketid=" +  basketid +"\">" + opt.getAttribute("fixed_term") + " kk</option>";
                }
                html += "</select>";
            }
        }
		
		html += "</td>";

		if (modifyView) {
		        if(count != null && count > 1 && type == "accessory") {
                           html += "<td align=\"right\"><input name=\"count-button\" type=\"button\" class=\"button\" value=\" -  \" onClick=\"send('/ajax','handler=basket&action=subtract&type="+type+"&productid="+productid+"&pricelistid="+pricelistid+"')\" /></td>";
			}
			if(count != null && count > 0 && type == "accessory") {
	 	           html += "<td align=\"right\"><input name=\"count-button\" type=\"button\" class=\"button\" value=\" + \" onClick=\"send('/ajax','handler=basket&action=add&type="+type+"&productid="+productid+"&pricelistid="+pricelistid+"')\" /></td>";
                        }
			if (productid != null && productid != 887) {
			  html += "<td align=\"right\"><input name=\"remove-button\" type=\"button\" class=\"button\" value=\"Poista\" onClick=\"send('/ajax', 'handler=basket&action=remove&type="+type+"&productid="+productid+"&pricelistid="+pricelistid+"')\" /></td>";
			}
		}
		html += "</tr>\n"
	} 
	if (modifyView) {
		html += "<tr><td align=right colspan=3><input name=\"clear-button\" type=\"button\" class=\"button\" value=\"Tyhjennä\" onClick=\"send('/ajax', 'handler=basket&action=clear')\"/></td></tr>";
	}
	if (basketProducts.length) {
		var text = getBasketText(basketProducts);
		if (text.length) {
			html += "<tr><td align=left colspan=3>";
			html += text;
			html += "</td></tr>";
		}
	}
	
	html += "</form></table>";

	var totalString = ""+roundCents(total);
	totalString = addPadding(totalString);
	
	var addedPriceTotalString = "" + roundCents(addedPriceTotal);
	addedPriceTotalString = addPadding(addedPriceTotalString);
    if (basketProducts.length) { 	
		html += "<table style=\"float:left;\" width=\"250\" class=\"extra_basket\" id=\"total\">";
		html += "<tr><td>Yhteens&auml;:</td>";
		html += "<td align=right id=\"total_price\">"+ totalString + " &euro;/kk</td>";
		
			//html += "<td align=right id=\"\">sad &euro;/kk</td>";
	
		
	//html += "<td rowspan=\"3\" align=right><img id=\"basket_order\" width=\"121\" height=\"82\" border=\"0\" alt=\"Tilaa\" src=\"/pic_gen/tilaa_btn_plain.png\"/></td>";

		
		html += "</tr>";

	//	html += "<tr><td class=\"td1\"><br>Kertaveloitus:</td>";
	//	html += "<td align=right class=\"td1\"><br><b>"+ addedPriceTotalString + " &euro;</b></td>";
				//	html += "<td align=right id=\"\">sad &euro;/kk</td>";
		html += "</tr>";

		html += "<tr><td valign=\"top\">";

		if (!modifyView) {
			html += "<a href=\"/gsm/basket.php?basketid="+ basketid +"\">Muokkaa</a></td>";
			 document.getElementById("order_info").style.display = "block"; 
		} else {
			html += "&nbsp;";
		}
		if (complete == "true") {

				//		html += "<td rowspan=\"3\"  align=right><a href=\"javascript:void(store())\" ><img id=\"basket_order\" width=\"121\" height=\"82\" border=\"0\" alt=\"Tilaa\" src=\"/pic_gen/tilaa_btn_plain.png\"/></a><br>Määräaikainen sopimus 24 kk</td>";
		
		html += "<td rowspan=\"3\"  align=right>Määräaikainen sopimus</td>";
		
		//html += "<a href=\"javascript:void(store())\" ><img id=\"basket_order\" style=\"float:right;\" width=\"121\" height=\"82\" border=\"0\" alt=\"Tilaa\" src=\"/pic_gen/tilaa_btn_plain.png\"/></a>";
				html += "<table width=\"130\" ><tr><td><a href=\"javascript:void(store())\" ><img id=\"basket_order\" style=\"float:right;\" width=\"121\" height=\"82\" border=\"0\" alt=\"Tilaa\" src=\"/pic_gen/tilaa_btn_plain.png\"/></a></td></tr></table>";
		
		}
		html += "</tr>";
		html += "</table>";
		

		
	}
    else {  
		html += "<p style=\"margin-left:25px;\">Et ole valinnut tuotteita"
				+ "Valitse haluamasi "
	         	+ "3G-palvelupaketti, "
		 		+ "laite ja mahdolliset "
		 		+ "lis&auml;palvelut.</p>"; 
	}
	div.innerHTML = html;
}

function addPadding(string) {
	var paddingSize = -1;
	if (string.indexOf(".") == -1) {
		paddingSize = 2;
		string += ".";
	} else {
		paddingSize = 3 - string.substring(string.indexOf("."), string.length).length;
	}
	for (var x = 0; x < paddingSize; x++) {
		string += "0";
	}
	return string;
}

function store() {
	send("/ajax","handler=basket&action=store");
}

function getBasketText(basketProducts) {
	if (! basketProducts.length)
		return "";
		
	var gotSubscription = false;
	var gotDataSubscription = false;
	var gotDataHandset = false;
	var gotHandset = false;
	var gotAddService = false;
	var gotAccessory = false;
	
	for (var j = 0; j < basketProducts.length; j++) {
		var bp = basketProducts[j];
		var type = bp.getAttribute("type");
		var id = bp.getAttribute("productid");

		if (type == "gsmsubscription") {
			gotSubscription = true;
 			if (id == 641 || id == 642 || id == 731 || id == 732 || id == 790 || (id >= 932 && id <=936)) {
				gotDataSubscription = true;
			}
                }
		else if (type == "handsetmodel") {
			gotHandset = true;
			if (id == 24 || id == 90 || id == 111 || id == 150 || id == 161) {
				gotDataHandset = true;
			}
		}
		else if (type == "bundle") {
			gotHandset = true;
			gotDataHandset = true;
		}
		else if (type == "addservice")
			gotAddService = true;
		else if (type == "accessory")
			gotAccessory = true;
	}

	var text = "";
	if (! gotSubscription) {
		if (gotDataHandset) {
			text += "<br><a href=\"3gtilaus.php#mlkp\"><b>Lisää ostoskoriin vielä MobiililaajakaistaPaketti!</b></a><br/>";
		} else {
			text += "<br><a href=\"3gtilaus.php#liittyma\"><b>Lisää ostoskoriin vielä haluamasi liittymäpaketti!</b></a><br/>";
		}
	}
	if (! gotHandset) {
		if (gotDataSubscription) {
			text += "<br><a href=\"3gtilaus.php?orderByDevices=1#liittyma\"><b>Lisää palvelupakettiin vielä päätelaite!</b></a><br />";
 		} else {
			text += "<br><a href=\"3gtilaus.php#liittyma\"><b>Lisää palvelupakettiin vielä haluamasi puhelin.</b></a><br/>";
		}
	}
	if (! gotAddService && gotSubscription) {
		if (gotDataSubscription) {
			text += "<br /><a href=\"3gtilaus.php#saldo\">Voit halutessasi lisätä palvelupakettiin myös saldopalvelun!</a>";
		} else {
			text += "<br/>";
			text += "<a href=\"3gtilaus.php#mlk\">Voit lisätä palvelupakettiisi myös edullisen mobiililaajakaistan!</a>";
	                text += "<br/>";
		}
	}
	return text;
}