/**
    * Copyright 2005-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package edu.sampleu.demo.kitchensink;
  
  import org.kuali.rice.krad.uif.view.DialogManager;
  import org.kuali.rice.krad.web.controller.UifControllerBase;
  import org.kuali.rice.krad.web.form.UifFormBase;
  import org.springframework.stereotype.Controller;
  import org.springframework.validation.BindingResult;
  import org.springframework.web.bind.annotation.ModelAttribute;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /**
   * a controller for the configuration test view
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @Controller
  @RequestMapping(value = "/dialog-configuration-test")
  public class DialogTestViewUifController extends UifControllerBase {
  
      @Override
      protected UifFormBase createInitialForm(HttpServletRequest request) {
          return new UifDialogTestForm();
      }
  
      /**
       * Displays page for testing dialogs
       */
      @Override
      @RequestMapping(params = "methodToCall=start")
      public ModelAndView start(@ModelAttribute("KualiForm") UifFormBase form, BindingResult result,
              HttpServletRequest request, HttpServletResponse response) {
          return super.start(form, result, request, response);
      }
  
      /**
       * Exercises the Dialog framework.
       *
       * <p>
       * Asks a series of questions of the user while processing a client request. Demonstrates the ability to go back
       * to the client bring up a Lightbox modal dialog.
       * <br>
       * Displays a few dialogs back to the user. First a yes/no dialog asking the user to pick an author.
       * Depending on which author was chosen, the user is asked to select a book.
       * The user is then given a chance to start the selection process over or continue on.
       * </p>
       *
       * @param form - test form
       * @param result - Spring form binding result
       * @param request - http request
       * @param response - http response
       * @return
       * @throws Exception
       */
      @RequestMapping(params = "methodToCall=save")
      public ModelAndView save(@ModelAttribute("KualiForm") UifDialogTestForm form, BindingResult result,
              HttpServletRequest request, HttpServletResponse response) throws Exception {
          ModelAndView mv;
  
          // dialog names
          String dialog1 = "chooseAuthorDialog";
          String dialog2a = "chooseEastmanBookDialog";
          String dialog2b = "chooseSeussBookDialog";
          String dialog3 = "myRestart";
  
          // local copies of dialog answers
          boolean whichAuthor = false;
          String chosenBook;
          boolean doRestart = false;
  
          // choose which author
          if (!hasDialogBeenAnswered(dialog1, form)){
              // redirect back to client to display lightbox
              return showDialog(dialog1, form, request, response);
          }
          whichAuthor = getBooleanDialogResponse(dialog1, form, request, response);
  
          // continue on here if they answered the the first question
          if (whichAuthor){
              form.setField1("You Selected: P.D. Eastman");
  
             // popup a 2nd consecutive dialog
             if (!hasDialogBeenAnswered(dialog2a,form)){
                 // redirect back to client to display lightbox
                 return showDialog(dialog2a, form, request, response);
             }
             chosenBook = form.getDialogManager().getDialogExplanation(dialog2a);
 
             // return back to the client displaying the choices
             form.setField1("You selected: "+chosenBook+" by P.D. Eastman. Here we go...");
         } else {
             form.setField1("You Selected: Dr. Seuss");
             // in this case, return to client and wait for them to submit again before showing next dialog
             // In the above case, the 1st and 2nd dialog are displayed consecutively before returning to the client.
             // But in this example, we return to the client and wait for them to hit the submit button again
             if (!hasDialogBeenDisplayed(dialog2b, form)){
                 form.getDialogManager().addDialog(dialog2b, form.getMethodToCall());
                 return getUIFModelAndView(form, "DialogView-Page1");
             }
 
             // now display the dialog to choose which book
             if (!hasDialogBeenAnswered(dialog2b, form)){
                 return showDialog(dialog2b, form, request, response);
             }
             chosenBook = form.getDialogManager().getDialogExplanation(dialog2b);
 
             // display which story the user has selected
             form.setField1("You selected: "+chosenBook+"  by Dr. Seuss. Here we go...");
         }
 
         // Wait at the client page for another page submit
         if (!hasDialogBeenDisplayed(dialog3, form)) {
                 form.getDialogManager().addDialog(dialog3, form.getMethodToCall());
                 return getUIFModelAndView(form, "DialogView-Page1");
         };
 
         // Ask them if they want to start over
         if (!hasDialogBeenAnswered(dialog3,form)){
             return showDialog(dialog3, form, request, response);
         }
         doRestart = getBooleanDialogResponse(dialog3, form, request, response);
 
         // clear the dialog manager entries, so when we come back, we'll ask all the questions again
         if (doRestart){
             form.getDialogManager().removeAllDialogs();
             form.setField1("Ok, let's start over.");
             return getUIFModelAndView(form, "DialogView-Page1");
         }
 
         // we're done, go to the next page
         return getUIFModelAndView(form, "DialogView-Page2");
     }
 
     /**
      * not used at this time
      *
      * @param form - test form
      * @param result - Spring form binding result
      * @param request - http request
      * @param response - http response
      * @return
      */
     @RequestMapping(params = "methodToCall=goBack")
     public ModelAndView goBack(@ModelAttribute("KualiForm") UifDialogTestForm form, BindingResult result,
             HttpServletRequest request, HttpServletResponse response) {
 
 //      TODO: Put "Are Your Sure?" dialog here
         form.getDialogManager().removeAllDialogs();
         form.setField1("Ok, let's start over.");
         return getUIFModelAndView(form, "DialogView-Page1");
     }
 
     /**
      * Test method for a controller that invokes a dialog lightbox.
      *
      * @param form - test form
      * @param result - Spring form binding result
      * @param request - http request
      * @param response - http response
      * @return
      * @throws Exception
      */
     @RequestMapping(params = "methodToCall=" + "doRadioDialogExample")
     public ModelAndView doSomething(@ModelAttribute("KualiForm") UifDialogTestForm form, BindingResult result,
             HttpServletRequest request, HttpServletResponse response) throws Exception {
         String dialog1 = "sampleRadioButtonDialog";
         if (!hasDialogBeenAnswered(dialog1, form)){
             // redirect back to client to display lightbox
             return showDialog(dialog1, form, request, response);
         }
         // Get value from chosen radio button
         String choice = form.getDialogManager().getDialogExplanation(dialog1);
         if (choice == null){
             form.setField1("You didn't select one of the radio buttons");
         } else {
             form.setField1("You chose Radio Option "+choice);
         }
 
         // clear dialog history so they can press the button again
         form.getDialogManager().removeDialog(dialog1);
         // reload page1
         return getUIFModelAndView(form, "DialogView-Page1");
     }
 
     /**
      * Test method for a controller that invokes a dialog lightbox.
      *
      * @param form - test form
      * @param result - Spring form binding result
      * @param request - http request
      * @param response - http response
      * @return
      * @throws Exception
      */
     @RequestMapping(params = "methodToCall=" + "doOkCancelExample")
     public ModelAndView doOKCancelExample(@ModelAttribute("KualiForm") UifDialogTestForm form, BindingResult result,
             HttpServletRequest request, HttpServletResponse response) throws Exception {
         String dialog1 = "preDefinedDialogOkCancel";
         if (!hasDialogBeenAnswered(dialog1, form)){
             // redirect back to client to display lightbox
             return showDialog(dialog1, form, request, response);
         }
         // Get user choice
         boolean choice = getBooleanDialogResponse(dialog1, form, request, response);
         StringBuilder sb = new StringBuilder("You selected ");
         sb.append((choice)?"OK":"Cancel");
         form.setField1(sb.toString());
 
         // clear dialog history so they can press the button again
         form.getDialogManager().removeDialog(dialog1);
         // reload page1
         return getUIFModelAndView(form, "DialogView-Page1");
     }
 
     /**
      * Test method for a controller that invokes a dialog lightbox.
      *
      * @param form - test form
      * @param result - Spring form binding result
      * @param request - http request
      * @param response - http response
      * @return
      * @throws Exception
      */
     @RequestMapping(params = "methodToCall=" + "doRegularGroupAsDialog")
     public ModelAndView doRegularGroupAsDialog(@ModelAttribute("KualiForm") UifDialogTestForm form, BindingResult result,
             HttpServletRequest request, HttpServletResponse response) throws Exception {
         String dialog1 = "myRegularGroup";
         if (!hasDialogBeenAnswered(dialog1, form)){
             // redirect back to client to display lightbox
             return showDialog(dialog1, form, request, response);
         }
         // Get value from chosen radio button
         boolean choice = getBooleanDialogResponse(dialog1, form, request, response);
         StringBuilder sb = new StringBuilder("You selected ");
         sb.append((choice)?"Yes":"No");
         form.setField1(sb.toString());
 
         // clear dialog history so they can press the button again
         form.getDialogManager().removeDialog(dialog1);
         // reload page1
         return getUIFModelAndView(form, "DialogView-Page1");
     }
 
 
     /**
      * Test method for a controller that invokes a dialog lightbox.
      *
      * @param form - test form
      * @param result - Spring form binding result
      * @param request - http request
      * @param response - http response
      * @return
      * @throws Exception
      */
     @RequestMapping(params = "methodToCall=" + "doExtendedDialog")
     public ModelAndView doExtendedDialog(@ModelAttribute("KualiForm") UifDialogTestForm form, BindingResult result,
             HttpServletRequest request, HttpServletResponse response) throws Exception {
         String dialog1 = "extendedDialogGroup";
         if (!hasDialogBeenAnswered(dialog1, form)){
             // redirect back to client to display lightbox
             return showDialog(dialog1, form, request, response);
         }
         // Get value from chosen radio button
         boolean choice = getBooleanDialogResponse(dialog1, form, request, response);
         StringBuilder sb = new StringBuilder("You selected ");
         sb.append((choice)?"Yes":"No");
         form.setField1(sb.toString());
 
         // clear dialog history so they can press the button again
         form.getDialogManager().removeDialog(dialog1);
         // reload page1
         return getUIFModelAndView(form, "DialogView-Page1");
     }
 }