package org.kuali.student.lum.lu.ui.main.client.controllers;

 import java.util.Map;

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

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

 import org.kuali.student.common.ui.client.configurable.mvc.LayoutController;

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

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

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

 import org.kuali.student.common.ui.client.util.WindowTitleUtils;

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

 import org.kuali.student.common.ui.shared.IdAttributes.IdType;

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

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

 import org.kuali.student.lum.lu.ui.browseprogram.client.controllers.BrowseProgramController;

 import org.kuali.student.lum.lu.ui.course.client.controllers.CourseAdminController;

 import org.kuali.student.lum.lu.ui.course.client.controllers.CourseAdminWithoutVersionController;

 import org.kuali.student.lum.lu.ui.course.client.controllers.CourseProposalController;

 import org.kuali.student.lum.lu.ui.course.client.controllers.ViewCourseParentController;

 import org.kuali.student.lum.lu.ui.course.client.views.CategoryManagementView;

 import org.kuali.student.lum.lu.ui.course.client.views.CurriculumHomeView;

 import org.kuali.student.lum.lu.ui.dependency.client.controllers.DependencyAnalysisController;

 import org.kuali.student.lum.lu.ui.tools.client.configuration.CatalogBrowserController;

 import org.kuali.student.lum.lu.ui.tools.client.configuration.CluSetsManagementController;

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

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

 import org.kuali.student.lum.program.client.core.CoreManager;

 import org.kuali.student.lum.program.client.credential.CredentialManager;

 import org.kuali.student.lum.program.client.major.MajorManager;

 import com.google.gwt.core.client.RunAsyncCallback;

 import com.google.gwt.user.client.Window;

 /**

  * Curriculum home controller which controls the main LayoutController views of the lum application.  The

  * default view of this controller is the Curriculum Home Landing page.  The following views are views within

  * this controller's scope:<br>

  *                 COURSE_PROPOSAL<br>

         VIEW_COURSE<br>

         PROGRAM_VIEW<br>

         PROGRAM_EDIT<br>

         PROGRAM_CREATE<br>

         PROGRAM_VERSIONS<br>

         CLU_SETS<br>

         VARIATION_VIEW<br>

         VARIATION_EDIT<br>

         COURSE_CATALOG<br>

         LO_CATEGORIES<br>

         BACC_PROGRAM_VIEW<br>

         BACC_PROGRAM_EDIT<br>

         BACC_PROGRAM_VERSIONS<br>

         CORE_PROGRAM_VIEW<br>

         CORE_PROGRAM_EDIT<br>

         CORE_PROGRAM_VERSIONS<br>

  * These views can be accessed through links and searches provided by the CurriculumHomeView (the default view).

  * 

  * @author Kuali Student Team

  * @see CurriculumHomeView

  */

 public class CurriculumHomeController extends LayoutController {

     private CurriculumHomeView home;

     private final SpanPanel panel = new SpanPanel();

     private CourseProposalController courseProposalController;

     private CourseAdminController courseAdminController;

     private CourseAdminWithoutVersionController courseAdminWithoutVersionController;

     private LayoutController viewCourseController;

     private LayoutController manageCluSetsController;

     private LayoutController browseCatalogController;

     private LayoutController dependencyAnalysisController;

     private LayoutController browseProgramController;

     private MajorManager majorManager = new MajorManager();

     private CredentialManager credentialManager = new CredentialManager();

     private CoreManager coreManager = new CoreManager();

     private abstract class RunAsyncGetView implements RunAsyncCallback {

         public void onFailure(Throwable reason) {

             Window.alert("Download failed.  Please try again.");

         }

     }

     public CurriculumHomeController(Controller controller, String name, Enum<?> viewType) {

         super();

         super.setController(controller);

         super.setName(name);

         super.setViewEnum(viewType);

         this.setDefaultView(LUMViews.DEFAULT);

         this.initWidget(panel);

         setupDefaultView();

     }

     private void setupDefaultView() {

         home = new CurriculumHomeView(this, LUMViews.DEFAULT);

     }

     @Override

     public <V extends Enum<?>> void getView(V viewType, final Callback<View> callback, Map<String, String> tokenMap) {

         //this is done so the views can have delayed loading

         switch ((LUMViews) viewType) {

             case DEFAULT:

                 callback.exec(home);

                 break;

             case COURSE_PROPOSAL:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getCourseProposalController());

 //                    }

 //                });

                 break;

             case COURSE_ADMIN:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getCourseAdminController());

 //                    }

 //                });

                 break;

             case COURSE_ADMIN_NO_VERSION:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getCourseAdminWithoutVersionController());

 //                    }

 //                });

                 break;

             case VIEW_COURSE:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getViewCourseController());

 //                    }

 //                });

                 break;

             case PROGRAM_VIEW:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         if (ProgramRegistry.isCreateNew()) {

                             ProgramRegistry.setCreateNew(false);

                             majorManager = new MajorManager();

                         }

                         callback.exec(majorManager.getProgramViewController());

 //                    }

 //                });

                 break;

             case PROGRAM_EDIT:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                             Application.getApplicationContext().setParentPath("");//Reset the parent path when navigating back

                         if (ProgramRegistry.isCreateNew()) {

                             ProgramRegistry.setCreateNew(false);

                             majorManager = new MajorManager();

                         }

                         callback.exec(majorManager.getProgramEditController());

 //                    }

 //                });

                 break;

             case PROGRAM_SPEC_EDIT:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         if (ProgramRegistry.isCreateNew()) {

                             ProgramRegistry.setCreateNew(false);

                             majorManager = new MajorManager();

                         }

                         callback.exec(majorManager.getProgramSpecEditController());

 //                    }

 //                });

                 break;                

             case PROGRAM_CREATE:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         majorManager = new MajorManager();

                         callback.exec(majorManager.getProgramEditController());

 //                    }

 //                });

                 break;

             case PROGRAM_VERSIONS:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(majorManager.getProgramVersionsController());

 //                    }

 //                });

                 break;

             case CLU_SETS:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getCluSetsController());

 //                    }

 //                });

                 break;

             case COURSE_CATALOG:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getBrowseCatalogController());

 //                    }

 //                });

                 break;

             case VARIATION_VIEW:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                     //Check if key data has been initialized (the program was loaded before the variation)

                     if(majorManager.getProgramModel()!=null && majorManager.getProgramModel().getDefinition()!=null){        

                         callback.exec(majorManager.getVariationViewController());

                     }else{

                             //If it has not yet been initialized, we need to pull some context information and 

                             //navigate to the program view which will initialize program information and then load the variation view.

                             //This is similar to the getFindMajorsWidget() in the CurriculumHomeConfigurer

                             ViewContext viewContext = new ViewContext();

                     viewContext.setId(tokenMap.get("docId"));

                     viewContext.setAttribute(ProgramConstants.VARIATION_ID, tokenMap.get(ProgramConstants.VARIATION_ID));

                     viewContext.setAttribute(ProgramConstants.TYPE, ProgramConstants.VARIATION_TYPE_KEY);

                     viewContext.setIdType(IdType.OBJECT_ID);

                     ProgramRegistry.setCreateNew(true);

                     Application.navigate(AppLocations.Locations.VIEW_PROGRAM.getLocation(), viewContext);

                     }

 //                    }

 //                });

                 break;

             case VARIATION_EDIT:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                     if(majorManager.getProgramModel()!=null && majorManager.getProgramModel().getDefinition()!=null){        

                     callback.exec(majorManager.getVariationEditController());

                     }else{

                             //If the variation edit is refreshed, bring the user to the program screen first

                         Application.getApplicationContext().setParentPath("");//Reset the parent path when navigating back

                     if (ProgramRegistry.isCreateNew()) {

                         ProgramRegistry.setCreateNew(false);

                         majorManager = new MajorManager();

                     }

                     callback.exec(majorManager.getProgramEditController());

                     }

 //                    }

 //                });

                 break;

             case CORE_PROGRAM_VIEW:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         if (ProgramRegistry.isCreateNew()) {

                             ProgramRegistry.setCreateNew(false);

                             coreManager = new CoreManager();

                         }

                         callback.exec(coreManager.getViewController());

 //                    }

 //                });

                 break;

             case CORE_PROGRAM_EDIT:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(coreManager.getEditController());

 //                    }

 //                });

                 break;

             case CORE_PROGRAM_VERSIONS:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(coreManager.getProgramVersionsController());

 //                    }

 //                });

                 break;

             case BACC_PROGRAM_VIEW:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         if (ProgramRegistry.isCreateNew()) {

                             ProgramRegistry.setCreateNew(false);

                             credentialManager = new CredentialManager();

                         }

                         callback.exec(credentialManager.getBaccViewController());

 //                    }

 //                });

                 break;

             case BACC_PROGRAM_EDIT:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(credentialManager.getBaccEditController());

 //                    }

 //                });

                 break;

             case BACC_PROGRAM_VERSIONS:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(credentialManager.getProgramVersionsController());

 //                    }

 //                });

                 break;

             case LO_CATEGORIES:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getCategoryManagementController());

 //                    }

 //                });

                 break;

             case DEPENDENCY_ANALYSIS:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getDependencyAnalysisController());

 //                    }

 //                });

                 break;

             case BROWSE_PROGRAM:

 //                GWT.runAsync(new RunAsyncGetView() {

 //                    @Override

 //                    public void onSuccess() {

                         callback.exec(getBrowseProgramController());

 //                    }

 //                });

                 break;

             default:

                 callback.exec(home);

         }

     }

     private View getCategoryManagementController() {

         return new CategoryManagementView(this, "Learning Objective Categories", LUMViews.LO_CATEGORIES);

     }

     private CourseProposalController getCourseProposalController() {

         courseProposalController = new CourseProposalController();

         return courseProposalController;

     }

     private CourseAdminController getCourseAdminController() {

         courseAdminController = new CourseAdminController();

         return courseAdminController;

     }

     private CourseAdminWithoutVersionController getCourseAdminWithoutVersionController(){

         courseAdminWithoutVersionController = new CourseAdminWithoutVersionController();

         return courseAdminWithoutVersionController;

     }

     private LayoutController getViewCourseController() {

         if (viewCourseController == null) {

             viewCourseController = new ViewCourseParentController();

         }

         return this.viewCourseController;

     }

     private LayoutController getCluSetsController() {

         manageCluSetsController = new CluSetsManagementController();

         return manageCluSetsController;

     }

     private LayoutController getBrowseCatalogController() {

         browseCatalogController = new CatalogBrowserController(this);

         return browseCatalogController;

     }

     private LayoutController getDependencyAnalysisController() {

             dependencyAnalysisController = new DependencyAnalysisController("DependencyAnalaysis");

         return dependencyAnalysisController;

     }

     private LayoutController getBrowseProgramController() {

             browseProgramController = new BrowseProgramController("BrowseProgram");

         return browseProgramController;

     }

     @Override

     protected void hideView(View view) {

         ApplicationController.getApplicationViewContainer().clear();

     }

     @Override

     protected void renderView(View view) {

         ApplicationController.getApplicationViewContainer().add(view.asWidget());

     }

     @Override

     public Enum<?> getViewEnumValue(String enumValue) {

         return LUMViews.valueOf(enumValue);

     }

     @Override

     public void updateModel() {

         // No model needed here

     }

     public <V extends Enum<?>> void showView(V viewType, Callback<Boolean> onReadyCallback) {

         if (viewType == LUMViews.DEFAULT) {

             WindowTitleUtils.setContextTitle(name);

         }

         super.showView(viewType, onReadyCallback);

     }

 }