package org.kuali.student.lum.common.client.widgets;

 import java.text.SimpleDateFormat;

 import java.util.ArrayList;

 import java.util.Date;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.kuali.student.common.search.dto.SearchParam;

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

 import org.kuali.student.common.ui.client.reporting.ReportExportWidget;

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

 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.KSLabel;

 import org.kuali.student.common.ui.client.widgets.notification.KSNotification;

 import org.kuali.student.common.ui.client.widgets.notification.KSNotifier;

 import org.kuali.student.common.ui.client.widgets.progress.BlockingTask;

 import org.kuali.student.common.ui.client.widgets.progress.KSBlockingProgressIndicator;

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

 import org.kuali.student.lum.lu.dto.CluSetInfo;

 import org.kuali.student.lum.lu.dto.MembershipQueryInfo;

 import com.google.gwt.dom.client.Style;

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

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

 import com.google.gwt.http.client.URL;

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

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

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

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

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

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

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

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

 public class CluSetDetailsWidget extends Composite implements ReportExportWidget {

     private CluSetInformation cluSetInformation;

     private SimplePanel mainPanel;

     private FlexTable detailsTable = new FlexTable();

     private boolean showClus;

     private Map<String, Boolean> showCluSetFlags = new HashMap<String, Boolean>();

     //private static final SimpleDateFormat DT_FOMRAT = new SimpleDateFormat("MM/dd/yyyy");

     private CluSetRetriever cluSetRetriever;

     // private CluSetManagementRpcServiceAsync cluSetManagementRpcServiceAsync;

     private BlockingTask retrievingTask = new BlockingTask("Retrieving details");

     public CluSetDetailsWidget(CluSetInformation cluSetInformation, CluSetRetriever cluSetRetriever) {

         mainPanel = new SimplePanel();

         this.initWidget(mainPanel);

         this.cluSetRetriever = cluSetRetriever;

         setCluSetInformation(cluSetInformation);

         redraw();

     }

     public CluSetDetailsWidget(String cluSetId, CluSetRetriever cluSetRetriever) {

         mainPanel = new SimplePanel();

         this.initWidget(mainPanel);

         this.cluSetRetriever = cluSetRetriever;

         KSBlockingProgressIndicator.addTask(retrievingTask);

         cluSetRetriever.getCluSetInformation(cluSetId, new Callback<CluSetInformation>() {

             @Override

             public void exec(CluSetInformation result) {

                 if (result != null) {

                     setCluSetInformation(result);

                     redraw();

                 }

                 KSBlockingProgressIndicator.removeTask(retrievingTask);

             }

         });

     }

     private void redraw() {

         List<CluInformation> clus = null;

         List<CluSetInfo> cluSets = null;

         MembershipQueryInfo membershipQueryInfo = null;

         List<CluInformation> clusInRange = null;

         int rowIndex = 0;

         mainPanel.clear();

         detailsTable.clear();

         if (cluSetInformation == null) {

             return;

         } else {

             clus = cluSetInformation.getClus();

             cluSets = cluSetInformation.getCluSets();

             membershipQueryInfo = cluSetInformation.getMembershipQueryInfo();

             clusInRange = cluSetInformation.getClusInRange();

         }

         StringBuilder titleTextSb = new StringBuilder();

         titleTextSb.append("INDIVIDUAL COURSE(S)");

         KSLabel coursesHeader = new KSLabel(titleTextSb.toString());

         // coursesHeader.getElement().getStyle().setProperty("borderBottom", "1px solid #D8D8D8");

         detailsTable.setWidget(rowIndex, 0, coursesHeader);

         detailsTable.getFlexCellFormatter().setColSpan(rowIndex, 0, 2);

         if (cluSets != null && cluSets.size() > 0 || clusInRange != null && clusInRange.size() > 0) {

             coursesHeader.setVisible(true);

         } else {

             coursesHeader.setVisible(false);

         }

         {

             // show/hide clus

             int numClus = (clus == null) ? 0 : clus.size();

             StringBuilder hideClusTextSb = new StringBuilder();

             showClus = true;

             if (showClus) {

                 hideClusTextSb.append("Hide courses(").append(numClus).append(")");

             } else {

                 hideClusTextSb.append("Show courses(").append(numClus).append(")");

             }

             KSButton hideClusButton = new KSButton(hideClusTextSb.toString(), ButtonStyle.DEFAULT_ANCHOR);

             detailsTable.setWidget(rowIndex, 1, hideClusButton);

             hideClusButton.addClickHandler(new ClickHandler() {

                 @Override

                 public void onClick(ClickEvent event) {

                     showClus = !showClus;

                     redraw();

                 }

             });

             if (numClus > 10) {

                 hideClusButton.setVisible(true);

             } else {

                 hideClusButton.setVisible(false);

             }

         }

         rowIndex++;

         if (clus != null && showClus) {

             for (CluInformation clu : clus) {

                 addClusDisplayToTable(rowIndex, clu);

                 rowIndex++;

             }

         }

         if (cluSets != null) {

             if (cluSets.size() > 0) {

                 KSLabel spacer = new KSLabel();

                 spacer.getElement().getStyle().setPaddingTop(10, Style.Unit.PX);

                 detailsTable.setWidget(rowIndex, 0, spacer);

                 detailsTable.getFlexCellFormatter().setColSpan(rowIndex, 0, 3);

                 rowIndex++;

             }

             for (final CluSetInfo cluSet : cluSets) {

                 int columnIndex = 0;

                 final String cluSetId = cluSet.getId();

                 HorizontalPanel cluSetNamePanel = new HorizontalPanel();

                 Anchor cluSetNameLabel = new Anchor(cluSet.getName());

                 cluSetNameLabel.addClickHandler(new ClickHandler() {

                     @Override

                     public void onClick(ClickEvent event) {

                         String url = "http://" + Window.Location.getHost() + Window.Location.getPath() + "?view=" + AppLocations.Locations.VIEW_CLU_SET + "&docId=" + cluSetId;

                         String features = "height=600,width=960,dependent=0,directories=1," + "fullscreen=1,location=1,menubar=1,resizable=1,scrollbars=1,status=1,toolbar=1";

                         Window.open(url, HTMLPanel.createUniqueId(), features);

                     }

                 });

                 KSLabel itemType = new KSLabel("Course Set");

                 itemType.getElement().getStyle().setProperty("color", "grey");

                 itemType.getElement().getStyle().setPaddingLeft(5, Style.Unit.PX);

                 cluSetNamePanel.add(cluSetNameLabel);

                 cluSetNamePanel.add(itemType);

                 boolean showCluSet = (showCluSetFlags.get(cluSet.getId()) == null) ? false : showCluSetFlags.get(cluSet.getId()).booleanValue();

                 detailsTable.setWidget(rowIndex, columnIndex, cluSetNamePanel);

                 detailsTable.getFlexCellFormatter().setColSpan(rowIndex, columnIndex, 1);

                 columnIndex++;

                 // show/hide sub cluSet details

                 // increment columnIndex to make the show/hide link to show at the right most column

                 columnIndex++;

                 StringBuilder hideCluSetTextSb = new StringBuilder();

                 if (showCluSet) {

                     hideCluSetTextSb.append("Hide Courses");

                 } else {

                     hideCluSetTextSb.append("Show Courses");

                 }

                 KSButton hideCluSetButton = new KSButton(hideCluSetTextSb.toString(), ButtonStyle.DEFAULT_ANCHOR);

                 detailsTable.setWidget(rowIndex, columnIndex, hideCluSetButton);

                 rowIndex++;

                 hideCluSetButton.addClickHandler(new ClickHandler() {

                     @Override

                     public void onClick(ClickEvent event) {

                         Boolean showCluSetDetails = showCluSetFlags.get(cluSet.getId());

                         showCluSetDetails = (showCluSetDetails == null) ? false : showCluSetDetails;

                         showCluSetFlags.put(cluSet.getId(), !showCluSetDetails);

                         Boolean newShowCluSetDetails = !showCluSetDetails;

                         if (newShowCluSetDetails) {

                             CluSetInformation subCluSetInformation = cluSetInformation.getSubCluSetInformations().get(cluSet.getId());

                             if (subCluSetInformation == null) {

                                 cluSetRetriever.getCluSetInformation(cluSet.getId(), new Callback<CluSetInformation>() {

                                     @Override

                                     public void exec(CluSetInformation result) {

                                         if (result != null) {

                                             cluSetInformation.getSubCluSetInformations().put(cluSet.getId(), result);

                                             redraw();

                                         }

                                     }

                                 });

                             } else {

                                 redraw();

                             }

                         } else {

                             redraw();

                         }

                     }

                 });

                 if (showCluSet) {

                     CluSetInformation subCluSetInformation = cluSetInformation.getSubCluSetInformations().get(cluSet.getId());

                     CluSetDetailsWidget subCluSetWidget = new CluSetDetailsWidget(subCluSetInformation, cluSetRetriever);

                     subCluSetWidget.getElement().getStyle().setPaddingLeft(20, Style.Unit.PX);

                     detailsTable.setWidget(rowIndex, 0, subCluSetWidget);

                     detailsTable.getFlexCellFormatter().setColSpan(rowIndex, 0, 3);

                     rowIndex++;

                 }

             }

         }

         if (membershipQueryInfo != null) {

             List<SearchParam> searchParams = membershipQueryInfo.getQueryParamValueList();

             if (searchParams != null) {

                 HorizontalPanel queryDisplayPanel = new HorizontalPanel();

                 for (SearchParam searchParam : searchParams) {

                     KSLabel paramDescLabel = new KSLabel();

                     KSLabel paramValueLabel = new KSLabel();

                     String paramDesc = translateSearchKey(searchParam.getKey());

                     paramDescLabel.setText(paramDesc);

                     Object value = searchParam.getValue();

                     String displayValue = "";

                     if (value instanceof Date) {

                             SimpleDateFormat DT_FOMRAT = new SimpleDateFormat("MM/dd/yyyy");

                         displayValue = DT_FOMRAT.format((Date) value);

                     } else {

                         displayValue = value.toString();

                     }

                     paramDescLabel.getElement().getStyle().setProperty("color", "grey");

                     paramDescLabel.getElement().getStyle().setPaddingRight(5, Style.Unit.PX);

                     paramValueLabel.setText(displayValue);

                     paramValueLabel.getElement().getStyle().setPaddingRight(10, Style.Unit.PX);

                     queryDisplayPanel.getElement().getStyle().setPaddingTop(10, Style.Unit.PX);

                     queryDisplayPanel.add(paramDescLabel);

                     queryDisplayPanel.add(paramValueLabel);

                 }

                 detailsTable.setWidget(rowIndex, 0, queryDisplayPanel);

                 detailsTable.getFlexCellFormatter().setColSpan(rowIndex, 0, 2);

                 rowIndex++;

             }

             if (clusInRange != null) {

                 for (CluInformation clu : clusInRange) {

                     addClusDisplayToTable(rowIndex, clu);

                     rowIndex++;

                 }

             } else {

                 Window.alert("num clusInRange is null");

             }

         }

         mainPanel.setWidget(detailsTable);

     }

     private void addClusDisplayToTable(int rowIndex, final CluInformation clu) {

         int columnIndex = 0;

         KSButton cluCodeLink = new KSButton(clu.getCode(), ButtonStyle.DEFAULT_ANCHOR);

         cluCodeLink.getElement().getStyle().setPaddingLeft(10, Style.Unit.PX);

         detailsTable.setWidget(rowIndex, columnIndex, cluCodeLink);

         detailsTable.getFlexCellFormatter().setColSpan(rowIndex, columnIndex, 1);

         cluCodeLink.addClickHandler(new ClickHandler() {

             @Override

             public void onClick(ClickEvent event) {

                 String url =  "http://" + Window.Location.getHost() + Window.Location.getPath();

                 if("kuali.lu.type.Variation".equals(clu.getType())){

                     url += "?view=" + AppLocations.Locations.VIEW_VARIATION;

                     url += "&docId=" + URL.encodeQueryString(clu.getParentCluId()) + "&variationId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;

                 }else if("kuali.lu.type.MajorDiscipline".equals(clu.getType())){

                         url += "?view=" + AppLocations.Locations.VIEW_PROGRAM;

                     url += "&docId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;                    

                 }else if("kuali.lu.type.CreditCourse".equals(clu.getType())){

                         url += "?view=" + AppLocations.Locations.VIEW_COURSE;

                     url += "&docId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;

                 }else if("kuali.lu.type.CoreProgram".equals(clu.getType())){

                         url += "?view=" + AppLocations.Locations.VIEW_CORE_PROGRAM;

                     url += "&docId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;

                 }else if("kuali.lu.type.credential.Baccalaureate".equals(clu.getType())){

                         url += "?view=" + AppLocations.Locations.VIEW_BACC_PROGRAM;

                     url += "&docId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;

                 }else if("kuali.lu.type.credential.Doctoral".equals(clu.getType())){

                         url += "?view=" + AppLocations.Locations.VIEW_BACC_PROGRAM;

                     url += "&docId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;

                 }else if("kuali.lu.type.credential.Masters".equals(clu.getType())){

                         url += "?view=" + AppLocations.Locations.VIEW_BACC_PROGRAM;

                     url += "&docId=" + URL.encodeQueryString(clu.getVerIndependentId());

                     url += "&idType=" + IdType.OBJECT_ID;

                 }else{

                         //show error, don't know how to handle Clu type

                         KSNotifier.add(new KSNotification("This widget does not know how to open learning units of type "+clu.getType(), false, true, 5000));

                         return;

                 }

                 String features = "height=600,width=960,dependent=0,directories=1," + "fullscreen=1,location=1,menubar=1,resizable=1,scrollbars=1,status=1,toolbar=1";

                 Window.open(url, HTMLPanel.createUniqueId().replace("-", "_"), features);

             }

         });

         columnIndex++;

         HTML cluTitleLabel = new HTML("<h5>" + clu.getTitle() + "</h5>");

         detailsTable.setWidget(rowIndex, columnIndex, cluTitleLabel);

         detailsTable.getFlexCellFormatter().setColSpan(rowIndex, columnIndex, 1);

         columnIndex++;

         if (clu.getCredits() != null && !clu.getCredits().trim().isEmpty()) {

             HTML cluCreditsLabel = new HTML("<h5>" + clu.getCredits() + " credits" + "</h5>");

             detailsTable.setWidget(rowIndex, columnIndex, cluCreditsLabel);

             detailsTable.getFlexCellFormatter().setColSpan(rowIndex, columnIndex, 1);

             columnIndex++;

         }

     }

     private String translateSearchKey(String searchKey) {

         String result = "";

         if (searchKey != null && searchKey.equals("lu.queryParam.luOptionalDivision")) {

             result = "Department";

         } else if (searchKey != null && searchKey.equals("lu.queryParam.luOptionalCrsNoRange")) {

             result = "Course Number Range";

         } else if (searchKey != null && searchKey.equals("lo.queryParam.loDescPlain")) {

             result = "Description";

         } else if (searchKey != null && searchKey.equals("lu.queryParam.luOptionalEffectiveDate1")) {

             result = "Effective From";

         } else if (searchKey != null && searchKey.equals("lu.queryParam.luOptionalEffectiveDate2")) {

             result = "Effective To";

         } else if (searchKey != null && searchKey.equals("lu.queryParam.luOptionalEffectiveDate2")) {

         }

         return result;

     }

     public CluSetInformation getCluSetInformation() {

         return cluSetInformation;

     }

     public void setCluSetInformation(CluSetInformation cluSetInformation) {

         this.cluSetInformation = cluSetInformation;

     }

     public String toString() {

         return detailsTable.toString();

     }

     @Override

     public boolean isExportElement() {

         return true;

     }

     @Override

     public List<ExportElement> getExportElementSubset(ExportElement parent) {

         List<CluInformation> items = this.cluSetInformation.getClus();

         ArrayList<ExportElement> subItems = new ArrayList<ExportElement>();

         for (int i = 0; i < items.size(); i++) {

             ExportElement subelement = new ExportElement(parent.getViewName(), parent.getSectionName());

             subelement.setFieldValue("<b>" + items.get(i).getCode() + " " + items.get(i).getTitle() + "</b>");

             subelement.setFieldValue2(items.get(i).getCredits() + " credits");

             subelement.setPrintType(ExportElement.PROPOSAL);

             subItems.add(subelement);

         }

         return subItems;

     }

     @Override

     public String getExportFieldValue() {

         return null;

     }

 }