/*

  * Created on 07-Jan-2006

  */

 package org.paneris.rimauresq;

 import java.io.File;

 import java.text.DateFormat;

 import java.util.Date;

 import java.util.Enumeration;

 import java.util.Hashtable;

 import java.util.Vector;

 import org.melati.Melati;

 import org.melati.servlet.Form;

 import org.melati.PoemContext;

 import org.melati.poem.AccessPoemException;

 import org.melati.poem.AccessToken;

 import org.melati.poem.ExecutingSQLPoemException;

 import org.melati.poem.Initialiser;

 import org.melati.poem.Persistent;

 import org.melati.poem.PoemTask;

 import org.melati.poem.PoemThread;

 import org.melati.poem.Table;

 import org.melati.poem.ValidationPoemException;

 import org.melati.servlet.PathInfoException;

 import org.melati.template.ServletTemplateContext;

 import org.melati.util.Email;

 import org.melati.util.MelatiStringWriter;

 import org.paneris.rimauresq.model.RimauresqDatabase;

 import org.paneris.rimauresq.model.User;

 /**

  * A simple trolley, a cut down version of MelatiShopping,

  * with underlying data structures compliant with MelatiShopping,

  * such that upgrade should be feasible.

  *

  * @author timp

  */

 public class Trolley extends RimauresqServlet {

   /** Stop Eclipse wingeing. */

   private static final long serialVersionUID = 1L;

   /**

    * A container class to hold an item's data.

    * @author timp

    */

   public class Item {

     protected Integer productId;

     protected Integer quantity;

     /**

      * Constructor.

      */

     Item(Integer productId, Integer quantity) {

       super();

       setProductId(productId);

       setQuantity(quantity);

     }

     /**

      * @return Returns the quantity.

      */

     public Integer getQuantity() {

       return quantity;

     }

     /**

      * @param quantity

      *          The quantity to set.

      */

     protected void setQuantity(Integer quantity) {

       this.quantity = quantity;

     }

     /**

      * @return Returns the productId.

      */

     public Integer getProductId() {

       return productId;

     }

     /**

      * @param productId The productId to set.

      */

     protected void setProductId(Integer productId) {

       this.productId = productId;

     }

   }

   User u;

   /**

    * Constructor.

    */

   public Trolley() {

     super();

   }

   /*

    * (non-Javadoc)

    *

    * @see org.paneris.rimauresq.RimauresqServlet#reallyDoTemplateRequest(org.melati.Melati,

    *      org.melati.template.ServletTemplateContext)

    */

   protected String doRimauresqTemplateRequest(Melati melati,

       ServletTemplateContext templateContext) throws Exception {

     templateContext.put("object", ((RimauresqDatabase)melati.getDatabase()).getThanksPage());

     Vector orderedItems = new Vector();

     Hashtable items = new Hashtable();

     final Table t = melati.getTable();

     final ServletTemplateContext tc = templateContext;

     try {

       PoemThread.withAccessToken(AccessToken.root, new PoemTask() {

         public void run() {

           u = (User)create(t, tc);

         }

       });

     } catch (ExecutingSQLPoemException e) {

       templateContext.put("error",

         "Problem creating user:" + e);

       return "thanks";

   }

     for (Enumeration e = melati.getRequest().getParameterNames(); e

         .hasMoreElements();) {

       String name = (String)e.nextElement();

       if (name.startsWith("quantity")) {

         String id = name.substring("quantity".length());

         Integer idInt = new Integer(id);

         Integer quantity = new Integer(1);

         String quantityString = Form.getFormNulled(

                 melati.getServletTemplateContext(), name);

         if (quantityString != null) {

           quantity = new Integer(quantityString);

           Item it = new Item(idInt, quantity);

           orderedItems.add(it);

           items.put(idInt, quantity);

         }

       }

     }

     templateContext.put("user", u);

     if (items.size() > 0) {

       templateContext.put("itemsOrdered", Boolean.TRUE);

     } else {

       if (!u.getNews().booleanValue()) {

         templateContext.put("illogical", Boolean.TRUE);

         return "thanks";

       }

     }

     templateContext.put("items", items);

     templateContext.put("orderedItems", orderedItems);

     templateContext.put("comment",

                         Form.getFormNulled(

             melati.getServletTemplateContext(), "comment"));

     String smtpServer = getSetting(melati,"SMTPServer");

     String websiteFromName = getSetting(melati,"WebsiteFromName");

     String websiteFromEmail = getSetting(melati,"WebsiteFromEmail");

     String from = mailAddress(websiteFromName, websiteFromEmail);

     String salesAdminName = getSetting(melati,"SalesAdminName");

     String salesAdminEmail = getSetting(melati,"SalesAdminEmail");

     String newsAdminName = getSetting(melati,"NewsAdminName");

     String newsAdminEmail = getSetting(melati,"NewsAdminEmail");

     String to = null;

     String subject = null;

     if (orderedItems.size() > 0) {

       to = mailAddress(salesAdminName, salesAdminEmail);

       subject = "Rimauresq Website order";

     }

     if (u.getNews().booleanValue()) {

       if (to != null) {

         to += ", ";

         subject += " and ";

       } else {

         to = "";

         subject = "";

       }

       to += mailAddress(newsAdminName, newsAdminEmail);

       to += ", ";

       to += mailAddress("Tim Pizey", "timp@paneris.org");

       subject += "News subscription";

     }

     String replyTo = "";

     try {

       Date now = new Date();

       DateFormat df =  DateFormat.getDateInstance();

       templateContext.put("now",  df.format(now));

       templateContext.put("servlet",this);

       templateContext.put("servlet",this);

       templateContext.put("from",from);

       templateContext.put("to",to);

       templateContext.put("replyTo",replyTo);

       templateContext.put("subject",subject);

       String templateName = "org/paneris/rimauresq/view/Email.wm";

       MelatiStringWriter sw = templateEngine.getStringWriter();

       templateEngine.expandTemplate(sw,

                                     templateName,

                                     templateContext);

       String message = sw.toString();

       templateName = "org/paneris/rimauresq/view/HtmlEmail.wm";

       sw = templateEngine.getStringWriter();

       templateEngine.expandTemplate(sw,

                                     templateName,

                                     templateContext);

       String htmlMessage = sw.toString();

       File[] empty = {};

       Email.sendAsHtmlWithAttachments(smtpServer, from,

               to, replyTo,

               subject,

               message,

               htmlMessage,

               empty, empty);

     } catch (Exception e) {

       e.printStackTrace(System.err);

       templateContext.put("error",

           "Unexpected error: " + e);

     }

     return "thanks";

   }

   /**

    * @return a fancy email address

    */

   private String mailAddress(String name, String email) {

     return name + " <" + email + ">";

   }

   /**

    * Creates a row for a table using field data in a template context.

    */

   protected Persistent create(Table table,

       final ServletTemplateContext context) {

     Persistent result = table.create(new Initialiser() {

       public void init(Persistent object) throws AccessPoemException,

           ValidationPoemException {

         Form.extractFields(context, object);

       }

     });

     result.postEdit(true);

     return result;

   }

   /**

    * Hardcode the table.

    * 

    * @see org.melati.servlet.ConfigServlet#melatiContext(org.melati.Melati)

    */

   protected PoemContext poemContext(Melati melati) throws PathInfoException {

     PoemContext it = super.poemContext(melati);

     it.setTable("user");

     return it;

   }

 }