/**

  * Copyright 2010 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.osedu.org/licenses/ECL-2.0

  *

  * 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.student.common.search.dto;

 import java.io.Serializable;

 import java.text.SimpleDateFormat;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.Comparator;

 import java.util.Date;

 import java.util.List;

 import javax.xml.bind.annotation.XmlAccessType;

 import javax.xml.bind.annotation.XmlAccessorType;

 @XmlAccessorType(XmlAccessType.FIELD)

 public class SearchResult implements Serializable {

         private static final long serialVersionUID = 1L;

         private Integer startAt;

         private Integer totalResults;

         private List<SearchResultRow> rows;

         private String sortColumn;

         private SortDirection sortDirection;

         public Integer getStartAt() {

                 return startAt;

         }

         public void setStartAt(Integer startAt) {

                 this.startAt = startAt;

         }

         public Integer getTotalResults() {

                 return totalResults;

         }

         public void setTotalResults(Integer totalResults) {

                 this.totalResults = totalResults;

         }

         public List<SearchResultRow> getRows() {

                 if (rows == null) {

                         rows = new ArrayList<SearchResultRow>(0);

                 }

                 return rows;

         }

         public void setRows(List<SearchResultRow> rows) {

                 this.rows = rows;

         }

         public String getSortColumn() {

                 return sortColumn;

         }

         public void setSortColumn(String sortColumn) {

                 this.sortColumn = sortColumn;

         }

         public SortDirection getSortDirection() {

                 return sortDirection;

         }

         public void setSortDirection(SortDirection sortDirection) {

                 this.sortDirection = sortDirection;

         }

     public void sortRows() {

         if (sortColumn != null) {

             Collections.sort(getRows(), new SearchResultRowComparator(sortColumn, sortDirection));

         }

     }

         /**

      * Compares two SearchResultRow rows with a given sort direction and column

      *

      */

     private static class SearchResultRowComparator implements Comparator<SearchResultRow> {

         private String sortColumn;

         private SortDirection sortDirection;

         public SearchResultRowComparator(String sortColumn, SortDirection sortDirection) {

             super();

             this.sortColumn = sortColumn;

             this.sortDirection = sortDirection;

         }

         @Override

         public int compare(SearchResultRow r1, SearchResultRow r2) {

             int compareResult = 0;

             //Pares out the cell values to compare

             String v1 = null;

             String v2 = null;

             for (SearchResultCell c : r1.getCells()) {

                 if (sortColumn.equals(c.getKey())) {

                     v1 = c.getValue();

                     break;

                 }

             }

             for (SearchResultCell c : r2.getCells()) {

                 if (sortColumn.equals(c.getKey())) {

                     v2 = c.getValue();

                     break;

                 }

             }

             //Compare the values wiuth the right type (SHould be done more efficiently

             try {

                 Integer v1Integer = Integer.parseInt(v1);

                 Integer v2Integer = Integer.parseInt(v2);

                 compareResult = v1Integer.compareTo(v2Integer);

             } catch (Exception e1) {

                 if (v1 != null && v2 != null && ("true".equals(v1.toLowerCase()) || "false".equals(v1.toLowerCase())) &&

                         ("true".equals(v2.toLowerCase()) || "false".equals(v2.toLowerCase()))) {

                     Boolean v1Boolean = Boolean.parseBoolean(v1);

                     Boolean v2Boolean = Boolean.parseBoolean(v2);

                     compareResult = v1Boolean.compareTo(v2Boolean);

                 } else {

                     try {

                         SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");

                         Date v1Date = df.parse(v1);

                         Date v2Date = df.parse(v2);

                         compareResult = v1Date.compareTo(v2Date);

                     } catch (Exception e) {

                         if (v1 != null && v2 != null) {

                             compareResult = v1.compareTo(v2);

                         } else if (v2 == null) {

                             compareResult = 0;

                         } else {

                             compareResult = -1;

                         }

                     }

                 }

             }

             //Sort reverse if order is descending

             if (SortDirection.DESC.equals(sortDirection)) {

                 return -1 * compareResult;

             }

             return compareResult;

         }

     }

 }