/**
    * Copyright 2005-2011 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 org.kuali.rice.krad.uif.widget;
  
  import org.apache.commons.lang.ClassUtils;
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.util.type.KualiDecimal;
  import org.kuali.rice.core.api.util.type.KualiInteger;
  import org.kuali.rice.core.api.util.type.KualiPercent;
  import org.kuali.rice.krad.uif.UifConstants;
  import org.kuali.rice.krad.uif.container.CollectionGroup;
  import org.kuali.rice.krad.uif.control.Control;
  import org.kuali.rice.krad.uif.field.DataField;
  import org.kuali.rice.krad.uif.field.InputField;
  import org.kuali.rice.krad.uif.view.View;
  import org.kuali.rice.krad.uif.control.CheckboxControl;
  import org.kuali.rice.krad.uif.control.CheckboxGroupControl;
  import org.kuali.rice.krad.uif.control.RadioGroupControl;
  import org.kuali.rice.krad.uif.control.SelectControl;
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.field.FieldGroup;
  import org.kuali.rice.krad.uif.layout.LayoutManager;
  import org.kuali.rice.krad.uif.layout.TableLayoutManager;
  import org.kuali.rice.krad.uif.util.ObjectPropertyUtils;
  import org.kuali.rice.krad.web.form.UifFormBase;
  
  import java.sql.Timestamp;
  import java.util.Set;
  
  /**
   * Decorates a HTML Table client side with various tools
   *
   * <p>
   * Decorations implemented depend on widget implementation. Examples are
   * sorting, paging and skinning.
   * </p>
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class RichTable extends WidgetBase {
      private static final long serialVersionUID = 4671589690877390070L;
  
      private String emptyTableMessage;
      private boolean disableTableSort;
      /** since columns are visible by default, this set holds propertyNames for the ones meant to be hidden*/
      private Set<String> hiddenColumns;
      /**holds the propertyNames for columns that are to be sorted*/
      private Set<String> sortableColumns;
  
  
      private boolean showSearchAndExportOptions = true;
  
      public RichTable() {
          super();
      }
  
      /**
       * The following initialization is performed:
       *
       * <ul>
       * <li>Initializes component options for empty table message</li>
       * </ul>
       */
      @Override
      public void performFinalize(View view, Object model, Component component) {
          super.performFinalize(view, model, component);
  
          UifFormBase formBase = (UifFormBase) model;
  
          if (isRender()) {
              if (StringUtils.isNotBlank(getEmptyTableMessage())) {
                  getComponentOptions().put(UifConstants.TableToolsKeys.LANGUAGE,
                          "{\"" + UifConstants.TableToolsKeys.EMPTY_TABLE + "\" : \"" + getEmptyTableMessage() + "\"}");
              }
  
              if (!isShowSearchAndExportOptions()) {
                  Object domOption = getComponentOptions().get(UifConstants.TableToolsKeys.SDOM);
                  if (domOption instanceof String) {
                      String sDomOption = (String) domOption;
                      if (StringUtils.isNotBlank(sDomOption)) {
                          sDomOption = StringUtils.remove(sDomOption, "T"); //Removes Export option
                          sDomOption = StringUtils.remove(sDomOption, "f"); //Removes search option
                          getComponentOptions().put(UifConstants.TableToolsKeys.SDOM, sDomOption);
                      }
                  }
  
             }
 
             // for add events, disable initial sorting
             if (UifConstants.ActionEvents.ADD_LINE.equals(formBase.getActionEvent())) {
                 getComponentOptions().put(UifConstants.TableToolsKeys.AASORTING, "[]");
             }
 
             if (component instanceof CollectionGroup) {
                 buildTableOptions((CollectionGroup) component);
             }
 
             if (isDisableTableSort()) {
                 getComponentOptions().put(UifConstants.TableToolsKeys.TABLE_SORT, "false");
             }
         }
     }
 
     /**
      * Builds column options for sorting
      *
      * @param collectionGroup
      */
     protected void buildTableOptions(CollectionGroup collectionGroup) {
         LayoutManager layoutManager = collectionGroup.getLayoutManager();
 
         // if sub collection exists, don't allow the table sortable
         if (!collectionGroup.getSubCollections().isEmpty()) {
             setDisableTableSort(true);
         }
 
        if (!isDisableTableSort()) {
             // if rendering add line, skip that row from col sorting
             if (collectionGroup.isRenderAddLine()
                     && !collectionGroup.isReadOnly()
                     && !((layoutManager instanceof TableLayoutManager) && ((TableLayoutManager) layoutManager)
                     .isSeparateAddLine())) {
                 getComponentOptions().put(UifConstants.TableToolsKeys.SORT_SKIP_ROWS,
                         "[" + UifConstants.TableToolsValues.ADD_ROW_DEFAULT_INDEX + "]");
             }
 
             StringBuffer tableToolsColumnOptions = new StringBuffer("[");
 
             if (layoutManager instanceof TableLayoutManager && ((TableLayoutManager) layoutManager)
                     .isRenderSequenceField()) {
                 tableToolsColumnOptions.append(" null ,");
             }
 
             // skip select field if enabled
             if (collectionGroup.isRenderSelectField()) {
                 String colOptions = constructTableColumnOptions(false, null, null);
                 tableToolsColumnOptions.append(colOptions + " , ");
             }
 
             //if data dictionary defines aoColumns, copy here and skip default sorting/visibility behaviour
             if (!StringUtils.isEmpty(getComponentOptions().get(UifConstants.TableToolsKeys.AO_COLUMNS))) {
                 //get the contents of the JS array string
                 String jsArray = getComponentOptions().get(UifConstants.TableToolsKeys.AO_COLUMNS);
                 int startBrace = StringUtils.indexOf(jsArray,"[");
                 int endBrace = StringUtils.lastIndexOf(jsArray, "]");
                 tableToolsColumnOptions.append(StringUtils.substring(jsArray, startBrace + 1, endBrace) + " , ");
             } else {
                     //use layout manager sortableColumns and hiddenColumns if set
                     Set<String> currentSortableColumns =  getSortableColumns();
                     Set<String> currentHiddenColumns =  getHiddenColumns();
                     if (layoutManager instanceof TableLayoutManager) {
                         TableLayoutManager tableLayoutMgr = (TableLayoutManager) layoutManager;
                         if (tableLayoutMgr.getSortableColumns() != null && !tableLayoutMgr.getSortableColumns().isEmpty()) {
                             currentSortableColumns = tableLayoutMgr.getSortableColumns();
                         }
                         if (tableLayoutMgr.getHiddenColumns() != null && !tableLayoutMgr.getHiddenColumns().isEmpty()) {
                             currentHiddenColumns = tableLayoutMgr.getHiddenColumns();
                         }
                     }
                 // TODO: does this handle multiple rows correctly?
                 for (Component component : collectionGroup.getItems()) {
                     // For FieldGroup, get the first field from that group
                     if (component instanceof FieldGroup) {
                         component = ((FieldGroup) component).getItems().get(0);
                     }
 
                     if (component instanceof DataField) {
                         DataField field = (DataField) component;
                         //if a field is marked as invisible in hiddenColumns, append options and skip sorting
                         if (currentHiddenColumns != null && currentHiddenColumns.contains(field.getPropertyName())) {
                             tableToolsColumnOptions.append("{" + UifConstants.TableToolsKeys.VISIBLE + ": " + UifConstants.TableToolsValues.FALSE + "}, ");
                         //if sortableColumns is present and a field is marked as sortable or unspecified
                         } else if (currentSortableColumns != null && !currentSortableColumns.isEmpty()) {
                             if (currentSortableColumns.contains(field.getPropertyName())) {
                                 tableToolsColumnOptions.append(getDataFieldColumnOptions(collectionGroup, field) + ", ");
                             } else {
                                 tableToolsColumnOptions.append("{'" + UifConstants.TableToolsKeys.SORTABLE + "': " + UifConstants.TableToolsValues.FALSE + "}, ");
                             }
                         } else {//sortable columns not defined
                             String colOptions = getDataFieldColumnOptions(collectionGroup, field);
                             tableToolsColumnOptions.append(colOptions + " , ");
                         }
                     } else {
                         String colOptions = constructTableColumnOptions(false, null, null);
                         tableToolsColumnOptions.append(colOptions + " , ");
                     }
                 }
             }
 
             if (collectionGroup.isRenderLineActions() && !collectionGroup.isReadOnly()) {
                 String colOptions = constructTableColumnOptions(false, null, null);
                 tableToolsColumnOptions.append(colOptions);
             } else {
                 tableToolsColumnOptions = new StringBuffer(StringUtils.removeEnd(tableToolsColumnOptions.toString(),
                         ", "));
             }
 
             tableToolsColumnOptions.append("]");
 
             getComponentOptions().put(UifConstants.TableToolsKeys.AO_COLUMNS, tableToolsColumnOptions.toString());
        }
     }
 
     /**
      * construct the column options for a data field
      * @param collectionGroup - the collectionGroup in which the data field is defined
      * @param field - the field to construction options for
      * @return - options as valid for datatable
      */
     private String getDataFieldColumnOptions(CollectionGroup collectionGroup, DataField field) {
         String sortType = null;
         if (!collectionGroup.isReadOnly() && (field instanceof InputField)
                 && ((InputField) field).getControl() != null) {
             Control control = ((InputField) field).getControl();
             if (control instanceof SelectControl) {
                 sortType = UifConstants.TableToolsValues.DOM_SELECT;
             } else if (control instanceof CheckboxControl || control instanceof CheckboxGroupControl) {
                 sortType = UifConstants.TableToolsValues.DOM_CHECK;
             } else if (control instanceof RadioGroupControl) {
                 sortType = UifConstants.TableToolsValues.DOM_RADIO;
             } else {
                 sortType = UifConstants.TableToolsValues.DOM_TEXT;
             }
         } else {
             sortType = UifConstants.TableToolsValues.DOM_TEXT;
         }
 
         Class dataTypeClass = ObjectPropertyUtils.getPropertyType(collectionGroup.getCollectionObjectClass(),
                 field.getPropertyName());
         return constructTableColumnOptions(true, dataTypeClass, sortType);
     }
 
     /**
      * Constructs the sort data type for each datatable columns.
      */
     protected String constructTableColumnOptions(boolean isSortable, Class dataTypeClass, String sortDataType) {
         String colOptions = "null";
 
         String sortType = "";
         if (!isSortable || dataTypeClass == null || sortType == null) {
             colOptions = "\"" + UifConstants.TableToolsKeys.SORTABLE + "\" : false, \"sType\" : \"string\"";
         } else {
             if (ClassUtils.isAssignable(dataTypeClass, KualiPercent.class)) {
                 sortType = UifConstants.TableToolsValues.PERCENT;
             } else if (ClassUtils.isAssignable(dataTypeClass, KualiInteger.class) || ClassUtils.isAssignable(
                     dataTypeClass, KualiDecimal.class)) {
                 sortType = UifConstants.TableToolsValues.CURRENCY;
             } else if (ClassUtils.isAssignable(dataTypeClass, Timestamp.class)) {
                 sortType = "date";
             } else if (ClassUtils.isAssignable(dataTypeClass, java.sql.Date.class) || ClassUtils.isAssignable(
                     dataTypeClass, java.util.Date.class)) {
                 sortType = UifConstants.TableToolsValues.DATE;
             } else if (ClassUtils.isAssignable(dataTypeClass, Number.class)) {
                 sortType = UifConstants.TableToolsValues.NUMERIC;
             }
             else {
                 sortType = UifConstants.TableToolsValues.STRING;
             }
 
             colOptions = "\"" + UifConstants.TableToolsKeys.SORT_DATA_TYPE + "\" : \"" + sortDataType + "\"";
             colOptions += " , \"" + UifConstants.TableToolsKeys.SORT_TYPE + "\" : \"" + sortType + "\"";
         }
 
         colOptions = "{" + colOptions + "}";
 
         return colOptions;
     }
 
     /**
      * Returns the text which is used to display text when the table is empty
      *
      * @return empty table message
      */
     public String getEmptyTableMessage() {
         return emptyTableMessage;
     }
 
     /**
      * Setter for a text to be displayed when the table is empty
      *
      * @param emptyTableMessage
      */
     public void setEmptyTableMessage(String emptyTableMessage) {
         this.emptyTableMessage = emptyTableMessage;
     }
 
     /**
      * Returns true if sorting is disabled
      *
      * @return the disableTableSort
      */
     public boolean isDisableTableSort() {
         return this.disableTableSort;
     }
 
     /**
      * Enables/disables the table sorting
      *
      * @param disableTableSort the disableTableSort to set
      */
     public void setDisableTableSort(boolean disableTableSort) {
         this.disableTableSort = disableTableSort;
     }
 
     /**
      * Returns true if search and export options are enabled
      *
      * @return the showSearchAndExportOptions
      */
     public boolean isShowSearchAndExportOptions() {
         return this.showSearchAndExportOptions;
     }
 
     /**
      * Show/Hide the search and export options in tabletools
      *
      * @param showSearchAndExportOptions the showSearchAndExportOptions to set
      */
     public void setShowSearchAndExportOptions(boolean showSearchAndExportOptions) {
         this.showSearchAndExportOptions = showSearchAndExportOptions;
     }
 
     public Set<String> getHiddenColumns() {
         return hiddenColumns;
     }
 
     public void setHiddenColumns(Set<String> hiddenColumns) {
         this.hiddenColumns = hiddenColumns;
     }
 
     public Set<String> getSortableColumns() {
         return sortableColumns;
     }
 
     public void setSortableColumns(Set<String> sortableColumns) {
         this.sortableColumns = sortableColumns;
     }
 }