package org.kuali.student.lum.program.client.major.proposal;

 import java.util.List;

 import org.kuali.student.common.ui.client.application.Application;

 import org.kuali.student.common.ui.client.configurable.mvc.sections.Section;

 import org.kuali.student.common.ui.client.configurable.mvc.sections.WarnContainer;

 import org.kuali.student.common.ui.client.configurable.mvc.views.VerticalSectionView;

 import org.kuali.student.common.ui.client.mvc.Callback;

 import org.kuali.student.common.ui.client.mvc.DataModel;

 import org.kuali.student.common.ui.client.mvc.ModelRequestCallback;

 import org.kuali.student.common.ui.client.widgets.KSButton;

 import org.kuali.student.common.ui.client.widgets.KSButtonAbstract.ButtonStyle;

 import org.kuali.student.common.ui.client.widgets.field.layout.element.MessageKeyInfo;

 import org.kuali.student.common.validation.dto.ValidationResultInfo;

 import org.kuali.student.common.validation.dto.ValidationResultInfo.ErrorLevel;

 import org.kuali.student.core.workflow.ui.client.widgets.WorkflowEnhancedNavController;

 import org.kuali.student.core.workflow.ui.client.widgets.WorkflowUtilities;

 import org.kuali.student.lum.common.client.configuration.AbstractControllerConfiguration;

 import org.kuali.student.lum.common.client.configuration.Configuration;

 import org.kuali.student.lum.common.client.configuration.ConfigurationManager;

 import org.kuali.student.lum.common.client.widgets.AppLocations;

 import org.kuali.student.lum.program.client.ProgramConstants;

 import org.kuali.student.lum.program.client.ProgramSections;

 import org.kuali.student.lum.program.client.major.view.CatalogInformationViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.LearningObjectivesViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.MajorKeyProgramInfoViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.ManagingBodiesViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.ProgramRequirementsViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.ProposalChangeImpactViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.ProposalInformationViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.SpecializationsViewConfiguration;

 import org.kuali.student.lum.program.client.major.view.SupportingDocsViewConfiguration;

 import org.kuali.student.lum.program.client.properties.ProgramProperties;

 import com.google.gwt.event.dom.client.ClickEvent;

 import com.google.gwt.event.dom.client.ClickHandler;

 import com.google.gwt.user.client.ui.Widget;

 /**

  * This configuration is used to define what widgets should appear on the screen

  * for the major proposal controller.  

  * <p>

  * Note that this is pretty much a copy of the major discipline controller, 

  * but this controller has a couple extra tabs .

  * 

  * @author cmann

  */

 public class MajorProposalSummaryConfiguration extends AbstractControllerConfiguration {

         boolean showEditLinks = false;

         public MajorProposalSummaryConfiguration(boolean showEditLinks) {

             super();

         this.showEditLinks = showEditLinks;

     }

     /**

      * This is an inherited method called by the framework to layout components on the screen.

      */

     @Override

     protected void buildLayout() {

         if (controller instanceof WorkflowEnhancedNavController

                 && ((WorkflowEnhancedNavController) controller).getWfUtilities() != null) {

                 final WarnContainer infoContainerHeader; // Header widget (with warnings if necessary)

                 //WarnContainers initialized with buttons common to all states (error or otherwise)

                 infoContainerHeader = generateWorkflowWidgetContainer(((WorkflowEnhancedNavController) controller)

                             .getWfUtilities().getWorkflowActionsWidget());

                 rootSection = new VerticalSectionView(ProgramSections.SUMMARY, ProgramProperties.get().proposal_menu_sections_summary(), ProgramConstants.PROGRAM_MODEL_ID, true){

                                 @Override

                                 public void beforeShow(final Callback<Boolean> onReadyCallback) {

                                         super.beforeShow(new Callback<Boolean>() {

                                                 @Override

                                                 public void exec(final Boolean result) {

                                 if (result) {

                                     // Make sure workflow actions and status updated before showing.

                                     ((WorkflowEnhancedNavController) controller).getWfUtilities().refresh();

                                     ((WorkflowEnhancedNavController) controller).getWfUtilities().requestAndSetupModel(new Callback<Boolean>(){

                                                                         public void exec(Boolean modelReadyResult) {

                                                     // Show validation error if they exist

                                                     ((WorkflowEnhancedNavController) controller).getWfUtilities().doValidationCheck(new Callback<List<ValidationResultInfo>>() {

                                                 @Override

                                                 public void exec(List<ValidationResultInfo> validationResult) { //Don't place a breakpoint here:  It will stall debugging for some unknown reason!

                                                     ErrorLevel isValid = rootSection.processValidationResults(

                                                             validationResult, true);

                                                     if (isValid == ErrorLevel.OK) {

                                                         infoContainerHeader.showWarningLayout(false);

                                                         ((WorkflowEnhancedNavController) controller)

                                                                         .getWfUtilities()

                                                                         .enableWorkflowActionsWidgets(true);

                                                     } else { //KSLAB-1985

                                                     ((WorkflowEnhancedNavController) controller).getWfUtilities()

                                                     .enableWorkflowActionsWidgets(false);

                                                     }

                                                         onReadyCallback.exec(result);

                                                 }

                                             });

                                                                         }

                                                                 });

                                 }else{

                                         onReadyCallback.exec(result);

                                 }

                                                 }

                                         });

                                 }

                 };

                 rootSection.addWidget(infoContainerHeader); // Header widget (with warnings if necessary)

         }

         ConfigurationManager configurationManager = new ConfigurationManager(configurer);

         // Initialize tabs on left of screen

         if (showEditLinks){

                 configureSectionsWithEditLinks(configurationManager);

         } else {

                 configureSectionsWithoutEditLinks(configurationManager);

         }

         // Add the work flow utilities to the screen light box to the screen

         // Instance of check ensures we only do this for majors

         if (controller instanceof MajorProposalController){

             // Grab the work flow utilities widget we initialized in the controller

             final WorkflowUtilities workflowUtilities = ((MajorProposalController) controller).getWfUtilities();

             workflowUtilities.addSubmitCallback(new Callback<Boolean>() {

                 @Override

                 public void exec(Boolean result) {

                     if (result) {

                         ((MajorProposalController) controller).setStatus();

                     }

                 }

             });

             //Add fields to workflow utils screens

             if(workflowUtilities!=null){

                     controller.requestModel(new ModelRequestCallback<DataModel>(){

                                         public void onModelReady(DataModel model) {

                                                 //Only display if this is a modification

                                                 String versionedFromId = model.get("versionInfo/versionedFromId");

                                                 if(versionedFromId!=null && !versionedFromId.isEmpty()){

                                                         //Add the previous start term since we need it as a widget so it can act as a cross field constraint

                                                         workflowUtilities.addApproveDialogField("", "startTerm",  new MessageKeyInfo(ProgramProperties.get().programInformation_startTerm()), MajorProposalSummaryConfiguration.this.configurer.getModelDefinition(), true, true);

                                                     workflowUtilities.addApproveDialogField("proposal", "prevEndTerm", new MessageKeyInfo(ProgramProperties.get().majorDiscipline_prevEndTerm()), MajorProposalSummaryConfiguration.this.configurer.getModelDefinition(),false);

                                                         workflowUtilities.addApproveDialogField("proposal", "prevEndProgramEntryTerm", new MessageKeyInfo(ProgramProperties.get().majorDiscipline_prevEndProgramEntryTerm()), MajorProposalSummaryConfiguration.this.configurer.getModelDefinition(),false);

                                                         workflowUtilities.addApproveDialogField("proposal", "prevEndInstAdmitTerm", new MessageKeyInfo(ProgramProperties.get().majorDiscipline_prevEndInstAdmitTerm()), MajorProposalSummaryConfiguration.this.configurer.getModelDefinition(),false);

                                                         workflowUtilities.updateApproveFields();

                                                         workflowUtilities.progressiveEnableFields();        

                                                 }else{

                                                         //Ignore this field (so blanket approve works if this is a new course proposal and not modifiaction)

                                                         workflowUtilities.addIgnoreDialogField("proposal/prevEndTerm");

                                                         workflowUtilities.addIgnoreDialogField("proposal/prevEndProgramEntryTerm");

                                                         workflowUtilities.addIgnoreDialogField("proposal/prevEndInstAdmitTerm");

                                                 }

                                         }

                                         public void onRequestFail(Throwable cause) {

                                         }

                     });

             }

         }

         // Loop over all configurations in the configuration manager

         for (Configuration configuration : configurationManager.getConfigurations()) {

             if (configuration instanceof AbstractControllerConfiguration) {

                 ((AbstractControllerConfiguration) configuration).setController(controller);

             }

             rootSection.addSection((Section) configuration.getView());

         }    

      }

     protected void configureSectionsWithEditLinks(ConfigurationManager configurationManager){

             configurationManager.registerConfiguration(ProposalInformationViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(ProposalChangeImpactViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(MajorKeyProgramInfoViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(ManagingBodiesViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(SpecializationsViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(CatalogInformationViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(new ProgramRequirementsViewConfiguration(controller, true));

             configurationManager.registerConfiguration(LearningObjectivesViewConfiguration.createSpecial(controller));

             configurationManager.registerConfiguration(SupportingDocsViewConfiguration.createSpecial(controller));

     }

     protected void configureSectionsWithoutEditLinks(ConfigurationManager configurationManager){

             configurationManager.registerConfiguration(ProposalInformationViewConfiguration.create());

             configurationManager.registerConfiguration(ProposalChangeImpactViewConfiguration.create());

             configurationManager.registerConfiguration(MajorKeyProgramInfoViewConfiguration.create());

             configurationManager.registerConfiguration(ManagingBodiesViewConfiguration.create());

             configurationManager.registerConfiguration(SpecializationsViewConfiguration.create());

             configurationManager.registerConfiguration(CatalogInformationViewConfiguration.create());

             configurationManager.registerConfiguration(new ProgramRequirementsViewConfiguration(controller, false));

             configurationManager.registerConfiguration(LearningObjectivesViewConfiguration.create());

             configurationManager.registerConfiguration(SupportingDocsViewConfiguration.create());    

     }    

     // Initializes a WarnContainer with Action options dropdown, and Curriculum Management link 

     private WarnContainer generateWorkflowWidgetContainer(Widget w) {

         WarnContainer warnContainer = new WarnContainer();

         warnContainer.add(w);

         w.addStyleName("ks-button-spacing");

         warnContainer.add(new KSButton("Return to Curriculum Management",

                 ButtonStyle.DEFAULT_ANCHOR, new ClickHandler() {

                     @Override

                     public void onClick(ClickEvent event) { //Don't place a breakpoint here:  It will stall debugging for some unknown reason!

                         Application

                                 .navigate(AppLocations.Locations.CURRICULUM_MANAGEMENT

                                         .getLocation());

                     }

                 }));

         // KSLAB-1985:  Warning logic/display moved to generateProposalSummarySection() where error states are established

         return warnContainer;

     }

 }