package com.oreilly.jent.struts.library.ui;

/**
 * In general, you may use the code in this book in your programs and 
 * documentation. You do not need to contact us for permission unless 
 * you're reproducing a significant portion of the code. For example, 
 * writing a program that uses several chunks of code from this book does 
 * not require permission. Selling or distributing a CD-ROM of examples 
 * from O'Reilly books does require permission. Answering a question by 
 * citing this book and quoting example code does not require permission. 
 * Incorporating a significant amount of example code from this book into 
 * your product's documentation does require permission.
 * 
 * We appreciate, but do not require, attribution. An attribution usually 
 * includes the title, author, publisher, and ISBN. For example: 
 * 
 *   "Java Enterprise in a Nutshell, Third Edition, 
 *    by Jim Farley and William Crawford 
 *    with Prakash Malani, John G. Norman, and Justin Gehtland. 
 *    Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
 *  
 *  If you feel your use of code examples falls outside fair use or the 
 *  permission given above, feel free to contact us at 
 *  permissions@oreilly.com.
 */

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.oreilly.jent.struts.library.model.Book;
import com.oreilly.jent.struts.library.session.UserSession;

public class BookDisplayAction extends LibraryBaseAction {

  public ActionForward execute(ActionMapping mapping, ActionForm form,
      HttpServletRequest request, HttpServletResponse response)
      throws Exception {

    // (1) Java code version of the BookDisplayForm
    BookDisplayActionForm bookDisplayForm = (BookDisplayActionForm) form;
    String trackingID = (String) bookDisplayForm.getTrackingID();
    String checkInOut = (String) bookDisplayForm.getCheckInOut();
    // (2) DynaValidatorForm (our SmartDynaValidatorForm) version of the BookDisplayForm
//    DynaValidatorForm bookDisplayForm = (DynaValidatorForm) form;
//    String trackingID = bookDisplayForm.getString("trackingID");
//    String checkInOut = bookDisplayForm.getString("checkInOut");
    UserSession userSession = getUserSession(request);
    if (trackingID != null) {
      Book book = (Book) getLibrary().getBooks().get(trackingID);
      if (book != null) {
        userSession.setCurrentBook(book);
      }
    }
    if (checkInOut != null) {
      if ("Check Out".equals(checkInOut)) {
        userSession.getCurrentBook().setCheckedOut(true);
      } else if ("Check In".equals(checkInOut)) {
        userSession.getCurrentBook().setCheckedOut(false);
      }
      // NOTE: Submit property must not be "sticky"

      // (1) Java code version of the BookDisplayForm
      bookDisplayForm.setCheckInOut(null);
      // (2) DynaValidatorForm (our SmartDynaValidatorForm) version of the BookDisplayForm
//    bookDisplayForm.set("checkInOut", null);
    }
    return mapping.findForward("viewbooks");
  }
}