/*
    * Tethys: GUI Utilities
    * Copyright 2012-2026. Tony Washer
    *
    * Licensed 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 io.github.tonywasher.joceanus.tethys.javafx.pane;
  
  import java.util.Iterator;
  
  import javafx.scene.Node;
  import javafx.scene.layout.FlowPane;
  
  import io.github.tonywasher.joceanus.tethys.api.base.TethysUIComponent;
  import io.github.tonywasher.joceanus.tethys.core.factory.TethysUICoreFactory;
  import io.github.tonywasher.joceanus.tethys.core.pane.TethysUICoreFlowPaneManager;
  import io.github.tonywasher.joceanus.tethys.javafx.base.TethysUIFXNode;
  
  /**
   * FX Flow Pane Manager.
   */
  public class TethysUIFXFlowPaneManager
          extends TethysUICoreFlowPaneManager {
      /**
       * The Node.
       */
      private final TethysUIFXNode theNode;
  
      /**
       * The FlowPane.
       */
      private final FlowPane theFlowPane;
  
      /**
       * Constructor.
       *
       * @param pFactory the factory
       */
      TethysUIFXFlowPaneManager(final TethysUICoreFactory<?> pFactory) {
          super(pFactory);
          theFlowPane = new FlowPane();
          theNode = new TethysUIFXNode(theFlowPane);
      }
  
      @Override
      public TethysUIFXNode getNode() {
          return theNode;
      }
  
      @Override
      public void setVisible(final boolean pVisible) {
          theNode.setManaged(pVisible);
          theNode.setVisible(pVisible);
      }
  
      @Override
      public void addNode(final TethysUIComponent pNode) {
          super.addNode(pNode);
          theFlowPane.getChildren().add(TethysUIFXNode.getNode(pNode));
      }
  
      @Override
      public void setChildVisible(final TethysUIComponent pChild,
                                  final boolean pVisible) {
          /* Handle nothing to do */
          final Node myChildNode = TethysUIFXNode.getNode(pChild);
          final boolean isVisible = myChildNode.isVisible();
          if (isVisible == pVisible) {
              return;
          }
  
          /* If the node is not visible */
          if (pVisible) {
              /* Count visible prior siblings */
              final int myId = pChild.getId();
              int myIndex = 0;
              final Iterator<TethysUIComponent> myIterator = iterator();
              while (myIterator.hasNext()) {
                  final TethysUIComponent myNode = myIterator.next();
                  final Integer myNodeId = myNode.getId();
  
                  /* If we have found the node */
                  if (myNodeId == myId) {
                      /* Set visible and add into the list */
                      myChildNode.setVisible(true);
                      theFlowPane.getChildren().add(myIndex, myChildNode);
                      break;
                  }
  
                 /* Increment count if node is visible */
                 if (TethysUIFXNode.getNode(myNode).isVisible()) {
                     myIndex++;
                 }
             }
 
             /* else we must hide the node */
         } else {
             /* set invisible and remove from the list */
             myChildNode.setVisible(false);
             theFlowPane.getChildren().remove(myChildNode);
         }
     }
 
     @Override
     public void setPreferredWidth(final Integer pWidth) {
         theFlowPane.setPrefWidth(pWidth);
     }
 
     @Override
     public void setPreferredHeight(final Integer pHeight) {
         theFlowPane.setPrefHeight(pHeight);
     }
 
     @Override
     public void setBorderPadding(final Integer pPadding) {
         super.setBorderPadding(pPadding);
         theNode.createWrapperPane(getBorderTitle(), getBorderPadding());
     }
 
     @Override
     public void setBorderTitle(final String pTitle) {
         super.setBorderTitle(pTitle);
         theNode.createWrapperPane(getBorderTitle(), getBorderPadding());
     }
 }