/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache 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.apache.org/licenses/LICENSE-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.apache.myfaces.tobago.model;
  
  import org.apache.myfaces.tobago.event.SortActionEvent;
  import org.apache.myfaces.tobago.internal.util.StringUtils;
  
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  
  public class SheetState implements Serializable, ScrollPositionState {
  
    private static final long serialVersionUID = 2L;
  
    private int first;
    private String sortedColumnId;
    private boolean ascending;
    private boolean toBeSorted;
    private List<Integer> columnWidths;
    private List<Integer> selectedRows;
    private ScrollPosition scrollPosition;
    private ExpandedState expandedState;
    private SelectedState selectedState;
  
    public SheetState() {
      reset();
    }
  
    public void reset() {
      first = -1;
      sortedColumnId = null;
      ascending = true;
      toBeSorted = false;
      columnWidths = new ArrayList<>();
      resetSelected();
      if (expandedState != null) {
        expandedState.reset();
      }
      if (selectedState != null) {
        selectedState.clear();
      }
      if (scrollPosition != null) {
        scrollPosition.clear();
      } else {
        scrollPosition = new ScrollPosition();
      }
    }
  
    public void resetSelected() {
      selectedRows = new ArrayList<>();
    }
  
    public List<Integer> getSelectedRows() {
      return selectedRows;
    }
  
    public void setSelectedRows(final List<Integer> selectedRows) {
      assert selectedRows != null;
      this.selectedRows = selectedRows;
    }
  
    public String getSortedColumnId() {
      return sortedColumnId;
    }
  
    public void setSortedColumnId(final String sortedColumnId) {
      if (StringUtils.notEquals(this.sortedColumnId, sortedColumnId)) {
        this.sortedColumnId = sortedColumnId;
        toBeSorted = true;
      }
    }
  
    public boolean isAscending() {
      return ascending;
    }
  
    public void setAscending(final boolean ascending) {
      if (this.ascending != ascending) {
        this.ascending = ascending;
        toBeSorted = true;
      }
   }
 
   public List<Integer> getColumnWidths() {
     return columnWidths;
   }
 
   public void setColumnWidths(final List<Integer> columnWidths) {
     this.columnWidths = columnWidths;
   }
 
   public boolean isDefinedColumnWidths() {
     for (final Integer columnWidth : columnWidths) {
       if (columnWidth < 0) {
         return false;
       }
     }
     return columnWidths.size() > 0;
   }
 
   public int getFirst() {
     return first;
   }
 
   public void setFirst(final int first) {
     this.first = first;
   }
 
   /**
    * @deprecated since 4.2.0, please use {@link #updateSortState(String id)}
    */
   @Deprecated
   public void updateSortState(final SortActionEvent sortEvent) {
     updateSortState(sortEvent.getColumn().getId());
   }
 
   public void updateSortState(final String columnId) {
     if (columnId.equals(sortedColumnId)) {
       setAscending(!isAscending());
     } else {
       setAscending(true);
       setSortedColumnId(columnId);
     }
   }
 
   public void resetSortState() {
     setAscending(true);
     setSortedColumnId(null);
   }
 
   @Override
   public ScrollPosition getScrollPosition() {
     return scrollPosition;
   }
 
   public void setScrollPosition(final ScrollPosition scrollPosition) {
     this.scrollPosition = scrollPosition;
   }
 
   public ExpandedState getExpandedState() {
     if (expandedState == null) {
       expandedState = new ExpandedState(2);
     }
     return expandedState;
   }
 
   public void setExpandedState(final ExpandedState expandedState) {
     this.expandedState = expandedState;
   }
 
   public SelectedState getSelectedState() {
     if (selectedState == null) {
       selectedState = new SelectedState();
     }
     return selectedState;
   }
 
   public void setSelectedState(final SelectedState selectedState) {
     this.selectedState = selectedState;
   }
 
   public boolean isToBeSorted() {
     return toBeSorted;
   }
 
   public void setToBeSorted(final boolean toBeSorted) {
     this.toBeSorted = toBeSorted;
   }
 }