<%@ page import="org.jdom2.Element" %>
<%@ page import="org.yawlfoundation.yawl.resourcing.rsInterface.WorkQueueGatewayClient" %>
<%@ page import="org.jdom2.output.XMLOutputter" %>
<%@ page import="org.jdom2.output.Format" %>
<%@ page import="org.jdom2.input.SAXBuilder" %>
<%@ page import="java.io.StringReader" %>


<%
    String redirectURL = (String) session.getAttribute("redirectURL");
    if (redirectURL == null) {
        redirectURL = request.getParameter("source");
        session.setAttribute("redirectURL", redirectURL);
    }
 
    String submit = request.getParameter("submit");
    
    if ((submit != null) && (submit.equals("Cancel"))) {
        session.removeAttribute("itemXML");
        session.removeAttribute("workitem");
        session.removeAttribute("handle");
        session.removeAttribute("redirectURL");

        response.sendRedirect(response.encodeURL(redirectURL));
        return;
    }
    if ((submit != null) && (submit.equals("Submit"))) {
    	
    	 redirectURL += "?complete=true";
        response.sendRedirect(response.encodeURL(redirectURL));
        
    }
  
    String wqURL = "http://localhost:8080/resourceService/workqueuegateway";
    WorkQueueGatewayClient wqClient = new WorkQueueGatewayClient(wqURL);

    String itemXML = (String) session.getAttribute("itemXML");
    if (itemXML == null) {

        String itemid = request.getParameter("workitem");
        String handle = request.getParameter("handle");

        itemXML = wqClient.getWorkItem(itemid, handle);	// CONTIENE I DATI
        session.setAttribute("itemXML", itemXML);
        session.setAttribute("workitem", itemid);
        session.setAttribute("handle", handle);
    }

    Element wir = new SAXBuilder().build(new StringReader(itemXML)).getRootElement(); //	ESTRAIAMO LA ROOT E ANDIAMO AI DATI
    //wir.detach();	// PROVA, NON PRESENTE NEL CUSTOM EXAMPLE
    Element updatedData = wir.getChild("updateddata");	// INUTILE, DATI DA 0 
    Element data =  wir.getChild("data");
    Element wirData = data.getChildren().get(0);	// DA QUI IN POI TROVIAMO LE VAR 
    String error = null;
    Element dataitem1;
    Element dataitem2;
    if (! wqClient.successful(itemXML)) {        
        error = itemXML;
    }
    else {     
        
        String input1 = request.getParameter("input1");
        String input2 = request.getParameter("input2");

        String varName1 = "username";
        String varName2 = "password";
        if (input1 != null && input2 != null) {
            if (wirData != null) {
				
            	//wir.getChild(varName1).setText(input1);  
            	//wir.getChild(varName2).setText(input2);   
                 dataitem1 = wirData.getChild(varName1);        // get data var
                 dataitem2 = wirData.getChild(varName2);
                
                //if (dataitem1 != null && dataitem2 != null) {
                    dataitem1.setText(input1);                  // update data var's value
                    dataitem2.setText(input2);

                    String itemid = (String) session.getAttribute("workitem");
                    String handle = (String) session.getAttribute("handle");
                    String dataString = new XMLOutputter(Format.getCompactFormat()).outputString(wirData);
                    String result = wqClient.updateWorkItemData(itemid, dataString, handle);
    
                    if (wqClient.successful(result)) {                 
                        session.removeAttribute("itemXML");
                        session.removeAttribute("workitem");
                        session.removeAttribute("handle");
                        session.removeAttribute("redirectURL");                 
                        redirectURL += "?complete=true";
                        response.sendRedirect(response.encodeURL(redirectURL));
                    }
                    else {
                        error = result;
                    }
                //}
                
                //else {
                    error = "This workitem does not contain a variable called '"
                                   + varName1 + "'or ' "+varName2+"' ";
                }
            }
            else {
                error = "This workitem does not contain any data for updating.";
            }
        }
   // }
    
%>


<head>
    <title>LoginForm</title>

</head>

<body>

    <h3 align="center">The CaseID Passed</h3>

    <form method="post" action="" name="LoginForm">

        <b>Username:</b> 
        <INPUT NAME="username" VALUE="username">
        <b>Password:</b> 
        <INPUT NAME="password" VALUE= "password">
            
                    <input type="submit" name="submit" value="Cancel"/>
         
                    <input type="submit" name="submit" value="Submit"/>
          
    </form>
</body>
</html>