/**
    * Copyright 2005-2012 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.datadictionary.parse.BeanTag;
  import org.kuali.rice.krad.datadictionary.parse.BeanTagAttribute;
  import org.kuali.rice.krad.uif.UifConstants;
  import org.kuali.rice.krad.uif.component.Component;
  import org.kuali.rice.krad.uif.container.CollectionGroup;
  import org.kuali.rice.krad.uif.control.CheckboxControl;
  import org.kuali.rice.krad.uif.control.CheckboxGroupControl;
  import org.kuali.rice.krad.uif.control.Control;
  import org.kuali.rice.krad.uif.control.RadioGroupControl;
  import org.kuali.rice.krad.uif.control.SelectControl;
  import org.kuali.rice.krad.uif.field.DataField;
  import org.kuali.rice.krad.uif.field.FieldGroup;
  import org.kuali.rice.krad.uif.field.InputField;
  import org.kuali.rice.krad.uif.field.MessageField;
  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.uif.view.View;
  import org.kuali.rice.krad.web.form.UifFormBase;
  
  import java.sql.Timestamp;
  import java.util.List;
  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)
   */
  @BeanTag(name="richTable")
  public class RichTable extends WidgetBase {
      private static final long serialVersionUID = 4671589690877390070L;
  
      private String emptyTableMessage;
      private boolean disableTableSort;
  
      private boolean forceAoColumnDefsOverride;
  
      private Set<String> hiddenColumns;
      private Set<String> sortableColumns;
  
      private String ajaxSource;
  
      private boolean showSearchAndExportOptions = true;
  
      private String groupingOptionsJSString;
  
      public RichTable() {
          super();
          groupingOptionsJSString = "null";
      }
  
      /**
       * 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()) && !getTemplateOptions().containsKey(
                      UifConstants.TableToolsKeys.LANGUAGE)) {
                  getTemplateOptions().put(UifConstants.TableToolsKeys.LANGUAGE,
                          "{\"" + UifConstants.TableToolsKeys.EMPTY_TABLE + "\" : \"" + getEmptyTableMessage() + "\"}");
              }
  
             if (!isShowSearchAndExportOptions()) {
                 Object domOption = getTemplateOptions().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
                         getTemplateOptions().put(UifConstants.TableToolsKeys.SDOM, sDomOption);
                     }
                 }
             }
 
             // for add events, disable initial sorting
             if (UifConstants.ActionEvents.ADD_LINE.equals(formBase.getActionEvent()) || UifConstants.ActionEvents
                     .ADD_BLANK_LINE.equals(formBase.getActionEvent())) {
                 getTemplateOptions().put(UifConstants.TableToolsKeys.AASORTING, "[]");
             }
 
             if ((component instanceof CollectionGroup)) {
                 buildTableOptions((CollectionGroup) component);
                 setTotalOptions((CollectionGroup) component);
             }
 
             if (isDisableTableSort()) {
                 getTemplateOptions().put(UifConstants.TableToolsKeys.TABLE_SORT, "false");
             }
 
             if (StringUtils.isNotBlank(ajaxSource)) {
                 getTemplateOptions().put(UifConstants.TableToolsKeys.SAJAX_SOURCE, ajaxSource);
             }
         }
     }
 
     /**
      * Builds the footer callback template option for column totals
      *
      * @param collectionGroup - the collection group
      */
     private void setTotalOptions(CollectionGroup collectionGroup) {
         LayoutManager layoutManager = collectionGroup.getLayoutManager();
 
         if (layoutManager instanceof TableLayoutManager) {
 
             List<String> totalColumns = ((TableLayoutManager) layoutManager).getColumnsToCalculate();
 
             if (totalColumns.size() > 0) {
                 String array = "[";
                 for (String i : totalColumns) {
                     array = array + i + ",";
                 }
                 array = StringUtils.removeEnd(array, ",");
                 array = array + "]";
                 getTemplateOptions().put(UifConstants.TableToolsKeys.FOOTER_CALLBACK,
                         "function (nRow, aaData, iStart, iEnd, aiDisplay) {initializeTotalsFooter (nRow, aaData, iStart, iEnd, aiDisplay, "
                                 + array
                                 + " )}");
             }
         }
     }
 
     /**
      * 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())) {
                 getTemplateOptions().put(UifConstants.TableToolsKeys.SORT_SKIP_ROWS,
                         "[" + UifConstants.TableToolsValues.ADD_ROW_DEFAULT_INDEX + "]");
             }
 
             StringBuffer tableToolsColumnOptions = new StringBuffer("[");
 
             int columnIndex = 0;
             int actionIndex = -1;
             boolean actionFieldVisible = collectionGroup.isRenderLineActions() && !collectionGroup.isReadOnly();
 
             if (layoutManager instanceof TableLayoutManager) {
                 actionIndex = ((TableLayoutManager) layoutManager).getActionColumnIndex();
             }
 
             if (actionIndex == 1 && actionFieldVisible) {
                 String actionColOptions = constructTableColumnOptions(columnIndex, false, null, null);
                 tableToolsColumnOptions.append(actionColOptions + " , ");
                 columnIndex++;
             }
 
             if (layoutManager instanceof TableLayoutManager && ((TableLayoutManager) layoutManager)
                     .isRenderSequenceField()) {
                 tableToolsColumnOptions.append("{\""
                         + UifConstants.TableToolsKeys.SORT_TYPE
                         + "\" : \""
                         + UifConstants.TableToolsValues.NUMERIC
                         + "\", "
                         + "\""
                         + UifConstants.TableToolsKeys.TARGETS
                         + "\": ["
                         + columnIndex
                         + "]}, ");
                 columnIndex++;
                 if (actionIndex == 2 && actionFieldVisible) {
                     String actionColOptions = constructTableColumnOptions(columnIndex, false, null, null);
                     tableToolsColumnOptions.append(actionColOptions + " , ");
                     columnIndex++;
                 }
             }
 
             // skip select field if enabled
             if (collectionGroup.isIncludeLineSelectionField()) {
                 String colOptions = constructTableColumnOptions(columnIndex, false, null, null);
                 tableToolsColumnOptions.append(colOptions + " , ");
                 columnIndex++;
             }
 
             // if data dictionary defines aoColumns, copy here and skip default sorting/visibility behaviour
             if (!StringUtils.isEmpty(getTemplateOptions().get(UifConstants.TableToolsKeys.AO_COLUMNS))) {
                 // get the contents of the JS array string
                 String jsArray = getTemplateOptions().get(UifConstants.TableToolsKeys.AO_COLUMNS);
                 int startBrace = StringUtils.indexOf(jsArray, "[");
                 int endBrace = StringUtils.lastIndexOf(jsArray, "]");
                 tableToolsColumnOptions.append(StringUtils.substring(jsArray, startBrace + 1, endBrace) + ", ");
 
                 if (actionFieldVisible && (actionIndex == -1 || actionIndex >= columnIndex)) {
                     String actionColOptions = constructTableColumnOptions(actionIndex, false, null, null);
                     tableToolsColumnOptions.append(actionColOptions);
                 } else {
                     tableToolsColumnOptions = new StringBuffer(StringUtils.removeEnd(tableToolsColumnOptions.toString(),
                             ", "));
                 }
 
                 tableToolsColumnOptions.append("]");
                 getTemplateOptions().put(UifConstants.TableToolsKeys.AO_COLUMNS, tableToolsColumnOptions.toString());
             } else if (!StringUtils.isEmpty(getTemplateOptions().get(UifConstants.TableToolsKeys.AO_COLUMN_DEFS))
                     && forceAoColumnDefsOverride) {
                 String jsArray = getTemplateOptions().get(UifConstants.TableToolsKeys.AO_COLUMN_DEFS);
                 int startBrace = StringUtils.indexOf(jsArray, "[");
                 int endBrace = StringUtils.lastIndexOf(jsArray, "]");
                 tableToolsColumnOptions.append(StringUtils.substring(jsArray, startBrace + 1, endBrace) + ", ");
 
                 if (actionFieldVisible && (actionIndex == -1 || actionIndex >= columnIndex)) {
                     String actionColOptions = constructTableColumnOptions(actionIndex, false, null, null);
                     tableToolsColumnOptions.append(actionColOptions);
                 } else {
                     tableToolsColumnOptions = new StringBuffer(StringUtils.removeEnd(tableToolsColumnOptions.toString(),
                             ", "));
                 }
 
                 tableToolsColumnOptions.append("]");
                 getTemplateOptions().put(UifConstants.TableToolsKeys.AO_COLUMN_DEFS,
                         tableToolsColumnOptions.toString());
             } else {
 
                 // TODO: does this handle multiple rows correctly?
                 for (Component component : collectionGroup.getItems()) {
                     if (actionFieldVisible && columnIndex + 1 == actionIndex) {
                         String actionColOptions = constructTableColumnOptions(columnIndex, false, null, null);
                         tableToolsColumnOptions.append(actionColOptions + " , ");
                         columnIndex++;
                     }
                     // 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 (getHiddenColumns() != null && getHiddenColumns().contains(field.getPropertyName())) {
                             tableToolsColumnOptions.append("{"
                                     + UifConstants.TableToolsKeys.VISIBLE
                                     + ": "
                                     + UifConstants.TableToolsValues.FALSE
                                     + ", \""
                                     + UifConstants.TableToolsKeys.TARGETS
                                     + "\": ["
                                     + columnIndex
                                     + "]"
                                     + "}, ");
                             // if sortableColumns is present and a field is marked as sortable or unspecified
                         } else if (getSortableColumns() != null && !getSortableColumns().isEmpty()) {
                             if (getSortableColumns().contains(field.getPropertyName())) {
                                 tableToolsColumnOptions.append(getDataFieldColumnOptions(columnIndex, collectionGroup,
                                         field) + ", ");
                             } else {
                                 tableToolsColumnOptions.append("{'"
                                         + UifConstants.TableToolsKeys.SORTABLE
                                         + "': "
                                         + UifConstants.TableToolsValues.FALSE
                                         + ", \""
                                         + UifConstants.TableToolsKeys.TARGETS
                                         + "\": ["
                                         + columnIndex
                                         + "]"
                                         + "}, ");
                             }
                         } else {// sortable columns not defined
                             String colOptions = getDataFieldColumnOptions(columnIndex, collectionGroup, field);
                             tableToolsColumnOptions.append(colOptions + " , ");
                         }
                         columnIndex++;
                     } else if (component instanceof MessageField
                             && component.getDataAttributes().get("role") != null
                             && component.getDataAttributes().get("role").equals("grouping")) {
                         //Grouping column is never shown, so skip
                         tableToolsColumnOptions.append("{"
                                 + UifConstants.TableToolsKeys.VISIBLE
                                 + ": "
                                 + UifConstants.TableToolsValues.FALSE
                                 + ", \""
                                 + UifConstants.TableToolsKeys.TARGETS
                                 + "\": ["
                                 + columnIndex
                                 + "]"
                                 + "}, ");
                         columnIndex++;
                     } else {
                         String colOptions = constructTableColumnOptions(columnIndex, false, null, null);
                         tableToolsColumnOptions.append(colOptions + " , ");
                         columnIndex++;
                     }
 
                 }
 
                 if (actionFieldVisible && (actionIndex == -1 || actionIndex >= columnIndex)) {
                     String actionColOptions = constructTableColumnOptions(actionIndex, false, null, null);
                     tableToolsColumnOptions.append(actionColOptions);
                 } else {
                     tableToolsColumnOptions = new StringBuffer(StringUtils.removeEnd(tableToolsColumnOptions.toString(),
                             ", "));
                 }
                 //merge the aoColumnDefs passed in
                 if(!StringUtils.isEmpty(getTemplateOptions().get(UifConstants.TableToolsKeys.AO_COLUMN_DEFS))){
                     String origAoOptions = getTemplateOptions().get(UifConstants.TableToolsKeys.AO_COLUMN_DEFS).trim();
                     origAoOptions = StringUtils.removeStart(origAoOptions, "[");
                     origAoOptions = StringUtils.removeEnd(origAoOptions, "]");
                     tableToolsColumnOptions.append("," + origAoOptions);
                 }
                 tableToolsColumnOptions.append("]");
                 getTemplateOptions().put(UifConstants.TableToolsKeys.AO_COLUMN_DEFS,
                         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
      */
     protected String getDataFieldColumnOptions(int target, 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(target, true, dataTypeClass, sortType);
     }
 
     /**
      * Constructs the sort data type for each data table columns in a format that will be used to initialize the data
      * table widget via javascript
      *
      * @param isSortable - whether a column should be marked as sortable
      * @param dataTypeClass - the class type of the column value - used determine the sType option - which identifies
      * the search plugin to use
      * @param sortDataType - Defines a data source type for the sorting which can be used to read realtime information
      * from the table
      * @return a formatted string with data table options for one column
      */
     protected String constructTableColumnOptions(int target, 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 + "\"";
         }
 
         if (!colOptions.equals("null")) {
             colOptions = "{" + colOptions + ", \"" + UifConstants.TableToolsKeys.TARGETS + "\": [" + target + "]}";
         } else {
             colOptions = "{" + colOptions + "}";
         }
 
         return colOptions;
     }
 
     /**
      * Returns the text which is used to display text when the table is empty
      *
      * @return empty table message
      */
     @BeanTagAttribute(name="emptyTableMessage")
     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
      */
     @BeanTagAttribute(name="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
      */
     @BeanTagAttribute(name="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;
     }
 
     /**
      * Holds propertyNames for the ones meant to be hidden since columns are visible by default
      *
      * <p>Duplicate entries are ignored and the order of entries is not significant</p>
      *
      * @return a set with propertyNames of columns to be hidden
      */
     @BeanTagAttribute(name="hiddenColumns",type= BeanTagAttribute.AttributeType.SETVALUE)
     public Set<String> getHiddenColumns() {
         return hiddenColumns;
     }
 
     /**
      * Setter for the hidden columns set
      *
      * @param hiddenColumns - a set containing propertyNames
      */
     public void setHiddenColumns(Set<String> hiddenColumns) {
         this.hiddenColumns = hiddenColumns;
     }
 
     /**
      * Holds the propertyNames for columns that are to be sorted
      *
      * <p>Duplicate entries are ignored and the order of entries is not significant</p>
      *
      * @return a set of propertyNames with for columns that will be sorted
      */
     @BeanTagAttribute(name="sortableColumns",type= BeanTagAttribute.AttributeType.SETVALUE)
     public Set<String> getSortableColumns() {
         return sortableColumns;
     }
 
     /**
      * Setter for sortable columns
      *
      * @param sortableColumns - a set containing propertyNames of columns to be sorted
      */
     public void setSortableColumns(Set<String> sortableColumns) {
         this.sortableColumns = sortableColumns;
     }
 
     /**
      * Specifies a URL for acquiring the table data with ajax
      *
      * <p>
      * When the ajax source URL is specified the rich table plugin will retrieve the data by invoking the URL and
      * building the table rows from the result. This is different from the standard use of the rich table plugin
      * with uses progressive enhancement to decorate a table that has already been rendereed
      * </p>
      *
      * @return String URL for ajax source
      */
     @BeanTagAttribute(name="ajaxSource")
     public String getAjaxSource() {
         return ajaxSource;
     }
 
     /**
      * Setter for the Ajax source URL
      *
      * @param ajaxSource
      */
     public void setAjaxSource(String ajaxSource) {
         this.ajaxSource = ajaxSource;
     }
 
     /**
      * Get groupingOption
      *
      * @return
      */
     public String getGroupingOptionsJSString() {
         return groupingOptionsJSString;
     }
 
     /**
      * Set the groupingOptions js data.  <b>This should not be set through XML configuration.</b>
      *
      * @param groupingOptionsJSString
      */
     public void setGroupingOptionsJSString(String groupingOptionsJSString) {
         this.groupingOptionsJSString = groupingOptionsJSString;
     }
 
     public boolean isForceAoColumnDefsOverride() {
         return forceAoColumnDefsOverride;
     }
 
     public void setForceAoColumnDefsOverride(boolean forceAoColumnDefsOverride) {
         this.forceAoColumnDefsOverride = forceAoColumnDefsOverride;
     }
 }