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

 import java.util.List;

 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.SectionTitle;

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

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

 import org.kuali.student.common.ui.client.widgets.layout.ContentBlockLayout;

 import org.kuali.student.common.ui.client.widgets.layout.LinkContentBlock;

 import org.kuali.student.common.ui.client.widgets.search.KSPicker;

 import org.kuali.student.common.ui.client.widgets.search.SearchPanel;

 import org.kuali.student.common.ui.client.widgets.search.SelectedResults;

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

 import org.kuali.student.core.assembly.data.Metadata;

 import org.kuali.student.core.rice.StudentIdentityConstants;

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

 import org.kuali.student.lum.lu.ui.course.client.widgets.RecentlyViewedBlock;

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

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

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

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

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

 import com.google.gwt.event.logical.shared.ValueChangeEvent;

 import com.google.gwt.event.logical.shared.ValueChangeHandler;

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

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

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

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

 public class CurriculumHomeConfigurer implements CurriculumHomeConstants {

     protected Metadata searchMetadata;

     public Widget configure(Metadata searchMeta) {

         this.searchMetadata = searchMeta;

         ContentBlockLayout layout = new ContentBlockLayout(getMessage(CURRICULUM_MANAGEMENT));

         layout.addContentTitleWidget(getHowToWidget());

         layout.addContentTitleWidget(getActionListLink());

         //Create

         LinkContentBlock create = new LinkContentBlock(

                 getMessage(CREATE),

                 getMessage(CREATE_DESC));

         create.addNavLinkWidget(getMessage(CREATE_COURSE), AppLocations.Locations.COURSE_PROPOSAL.getLocation());

         create.addNavLinkWidget(getMessage(CREATE_PROGRAM), AppLocations.Locations.EDIT_PROGRAM.getLocation());

         //View + Modify

         LinkContentBlock viewModify = new LinkContentBlock(

                 getMessage(VIEW_MODIFY),

                 getMessage(VIEW_MODIFY_DESC));

         SectionTitle courses = SectionTitle.generateH4Title(getMessage("courses"));

         courses.addStyleName("bold");

         viewModify.add(courses);

         viewModify.addNavLinkWidget(getMessage(BROWSE_CATALOG), AppLocations.Locations.BROWSE_CATALOG.getLocation());

         viewModify.add(getFindCoursesWidget());

         viewModify.add(getFindProposalsWidget());

         SectionTitle programs = SectionTitle.generateH4Title(getMessage("programs"));

         programs.addStyleName("bold");

         viewModify.add(programs);

         viewModify.add(getFindMajorsWidget());

         viewModify.add(getFindCoreProgramWidget());

         viewModify.add(getFindCredentialProgramWidget());

         //RecentlyViewed

         RecentlyViewedBlock recent = new RecentlyViewedBlock(

                 getMessage(RECENTLY_VIEWED),

                 getMessage(RV_DESC));

         recent.addStyleName("recentlyViewed-block");

         //Tools

         LinkContentBlock tools = new LinkContentBlock(

                 getMessage(TOOLS),

                 getMessage(TOOLS_DESC));

         tools.addNavLinkWidget(getMessage(COURSE_SETS), AppLocations.Locations.MANAGE_CLU_SETS.getLocation());

         tools.addNavLinkWidget(getMessage(LO_CATEGORIES), AppLocations.Locations.MANAGE_LO_CATEGORIES.getLocation());

         //Coming soon

         Label depAnalysis = new Label(getMessage(DEP_ANALYSIS));

         depAnalysis.setStyleName("contentBlock-navLink-disabled");

         depAnalysis.setTitle("Coming Soon");

         tools.add(depAnalysis);

         Label learningObjectives = new Label(getMessage(LOS));

         learningObjectives.setTitle("Coming Soon");

         learningObjectives.setStyleName("contentBlock-navLink-disabled");

         tools.add(learningObjectives);

         //Add all blocks

         layout.addContentBlock(create);

         layout.addContentBlock(viewModify);

         recent.addBlock(tools);

         layout.addContentBlock(recent);

         return layout;

     }

     private Widget getFindCredentialProgramWidget() {

         Anchor anchor = createNavigationWidget(getMessage(FIND_CREDENTIALS));

         anchor.addClickHandler(new ClickHandler() {

             @Override

             public void onClick(ClickEvent event) {

                 ProgramRegistry.setCreateNew(true);

                 ViewContext baccViewContext = new ViewContext();

                 baccViewContext.setId(ProgramClientConstants.CREDENTIAL_BACCALAUREATE_PROGRAM);

                 Application.navigate(AppLocations.Locations.VIEW_BACC_PROGRAM.getLocation(), baccViewContext);

             }

         });

         return anchor;

     }

     private Widget getFindCoreProgramWidget() {

         Anchor anchor = createNavigationWidget(getMessage(FIND_CORES));

         anchor.addClickHandler(new ClickHandler() {

             @Override

             public void onClick(ClickEvent event) {

                 ProgramRegistry.setCreateNew(true);

                 Application.navigate(AppLocations.Locations.VIEW_CORE_PROGRAM.getLocation());

             }

         });

         return anchor;

     }

     protected Widget getFindProposalsWidget() {

         final Widget searchWidget;

         if (searchMetadata != null) {

             Metadata metadata = searchMetadata.getProperties().get("findProposal");

             searchWidget = new KSPicker(metadata.getInitialLookup(), metadata.getAdditionalLookups());

             SearchPanel panel = ((KSPicker) searchWidget).getSearchPanel();

             if (panel != null) {

                 panel.setMutipleSelect(false);

             }

             ((KSPicker) searchWidget).setAdvancedSearchCallback(new Callback<List<SelectedResults>>() {

                 @Override

                 public void exec(List<SelectedResults> result) {

                         if (result != null && result.size() > 0) {

                             SelectedResults value = result.get(0);

                             ViewContext viewContext = new ViewContext();

                             viewContext.setId(value.getResultRow().getId());

                             viewContext.setAttribute(StudentIdentityConstants.DOCUMENT_TYPE_NAME, value.getResultRow().getValue("proposal.resultColumn.proposalType"));

                             viewContext.setIdType(IdType.KS_KEW_OBJECT_ID);

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

                             ((KSPicker) searchWidget).getSearchWindow().hide();

                         }

                 }

             });

         } else {

             searchWidget = new Label(getMessage(FIND_PROPOSALS));

             searchWidget.setStyleName("contentBlock-navLink-disabled");

         }

         searchWidget.setStyleName("contentBlock-navLink");

         return searchWidget;

     }

     protected Widget getFindCoursesWidget() {

         Widget searchWidget;

         if (searchMetadata != null) {

             Metadata metadata = searchMetadata.getProperties().get("findCourse");

             searchWidget = new KSPicker(metadata.getInitialLookup(), metadata.getAdditionalLookups());

             SearchPanel panel = ((KSPicker) searchWidget).getSearchPanel();

             if (panel != null) {

                 panel.setMutipleSelect(false);

             }

             ((KSPicker) searchWidget).addValuesChangeHandler(new ValueChangeHandler<List<String>>() {

                 public void onValueChange(ValueChangeEvent<List<String>> event) {

                     List<String> selection = event.getValue();

                     ViewContext viewContext = new ViewContext();

                     viewContext.setId(selection.get(0));

                     viewContext.setIdType(IdType.OBJECT_ID);

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

                 }

             });

             searchWidget.setStyleName("contentBlock-navLink");

         } else {

             searchWidget = new Label(getMessage(FIND_COURSES));

             searchWidget.setStyleName("contentBlock-navLink-disabled");

         }

         return searchWidget;

     }

     protected Widget getFindMajorsWidget() {

         final Widget searchWidget;

         if (searchMetadata != null) {

             Metadata metadata = searchMetadata.getProperties().get("findMajor");

             searchWidget = new KSPicker(metadata.getInitialLookup(), metadata.getAdditionalLookups());

             SearchPanel panel = ((KSPicker) searchWidget).getSearchPanel();

             if (panel != null) {

                 panel.setMutipleSelect(false);

             }

             ((KSPicker) searchWidget).setAdvancedSearchCallback(new Callback<List<SelectedResults>>() {

                 @Override

                 public void exec(List<SelectedResults> result) {

                     SelectedResults value = result.get(0);

                     ViewContext viewContext = new ViewContext();

                     viewContext.setId(value.getResultRow().getId());

                     String cluType = value.getResultRow().getValue("lu.resultColumn.luOptionalType");

                     if (cluType != null) {

                         viewContext.setAttribute(ProgramConstants.TYPE, cluType);

                     }

                     String variationId = value.getResultRow().getValue("lu.resultColumn.variationId");

                     if (variationId != null && !variationId.trim().isEmpty()) {

                         viewContext.setAttribute(ProgramConstants.VARIATION_ID, variationId);

                     }

                     viewContext.setIdType(IdType.OBJECT_ID);

                     ProgramRegistry.setCreateNew(true);

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

                     ((KSPicker) searchWidget).getSearchWindow().hide();

                 }

             });

         } else {

             searchWidget = new Label(getMessage(FIND_MAJORS));

             searchWidget.setStyleName("contentBlock-navLink-disabled");

         }

         searchWidget.setStyleName("contentBlock-navLink");

         return searchWidget;

     }

     protected Widget getHowToWidget() {

         Anchor widget = new Anchor(getMessage(HOW_TO));

         widget.addClickHandler(new ClickHandler() {

             @Override

             public void onClick(ClickEvent event) {

                 final KSLightBox pop = new KSLightBox();

                 pop.setWidget(new CurriculumHomeHelpTable());

                 pop.setSize(800, 600);

                 pop.show();

             }

         });

         widget.setStyleName("contentBlock-navLink");

         return widget;

     }

     protected Widget getActionListLink() {

         Hyperlink widget = new Hyperlink(getMessage(ACTIONLIST), AppLocations.Locations.HOME.getLocation());

         widget.setStyleName("contentBlock-navLink");

         return widget;

     }

     private String getMessage(String key) {

         return Application.getApplicationContext().getMessage(key);

     }

     private Anchor createNavigationWidget(String title) {

         Anchor anchor = new Anchor(title);

         anchor.addStyleName("contentBlock-navLink");

         return anchor;

     }

 }