/*
    * 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 javafx.geometry.Pos;
  import javafx.scene.Node;
  import javafx.scene.layout.HBox;
  import javafx.scene.layout.Pane;
  import javafx.scene.layout.Priority;
  import javafx.scene.layout.Region;
  import javafx.scene.layout.VBox;
  import io.github.tonywasher.joceanus.tethys.api.base.TethysUIComponent;
  import io.github.tonywasher.joceanus.tethys.core.base.TethysUICoreComponent;
  import io.github.tonywasher.joceanus.tethys.core.factory.TethysUICoreFactory;
  import io.github.tonywasher.joceanus.tethys.core.pane.TethysUICoreBoxPaneManager;
  import io.github.tonywasher.joceanus.tethys.javafx.base.TethysUIFXNode;
  
  import java.util.Iterator;
  
  /**
   * FX Box Pane Manager.
   */
  public class TethysUIFXBoxPaneManager
          extends TethysUICoreBoxPaneManager {
      /**
       * The Node.
       */
      private final TethysUIFXNode theNode;
  
      /**
       * The BoxPane.
       */
      private final Pane theBoxPane;
  
      /**
       * Is the Box horizontal?
       */
      private final boolean isHorizontal;
  
      /**
       * Constructor.
       *
       * @param pFactory    the factory
       * @param pHorizontal horizontal box true/false
       */
      TethysUIFXBoxPaneManager(final TethysUICoreFactory<?> pFactory,
                               final boolean pHorizontal) {
          super(pFactory);
          isHorizontal = pHorizontal;
          if (isHorizontal) {
              final HBox myBox = new HBox(getGap());
              myBox.setAlignment(Pos.CENTER);
              theBoxPane = myBox;
          } else {
              final VBox myBox = new VBox(getGap());
              myBox.setAlignment(Pos.CENTER);
              theBoxPane = myBox;
          }
          theNode = new TethysUIFXNode(theBoxPane);
      }
  
      @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);
          theBoxPane.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);
                     theBoxPane.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);
             theBoxPane.getChildren().remove(myChildNode);
         }
     }
 
     @Override
     public void setGap(final Integer pGap) {
         super.setGap(pGap);
         if (theBoxPane instanceof HBox myBox) {
             myBox.setSpacing(getGap());
         } else if (theBoxPane instanceof VBox myBox) {
             myBox.setSpacing(getGap());
         }
     }
 
     @Override
     public void setPreferredWidth(final Integer pWidth) {
         theBoxPane.setPrefWidth(pWidth);
     }
 
     @Override
     public void setPreferredHeight(final Integer pHeight) {
         theBoxPane.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());
     }
 
     @Override
     public void addSpacer() {
         final TethysUIFXSpacer mySpacer = new TethysUIFXSpacer(true);
         addSpacerNode(mySpacer);
         theBoxPane.getChildren().add(TethysUIFXNode.getNode(mySpacer));
     }
 
     @Override
     public void addStrut() {
         final TethysUIFXSpacer mySpacer = new TethysUIFXSpacer(false);
         addSpacerNode(mySpacer);
         theBoxPane.getChildren().add(TethysUIFXNode.getNode(mySpacer));
     }
 
     /**
      * Spacer node.
      */
     private final class TethysUIFXSpacer
             extends TethysUICoreComponent {
         /**
          * The Node.
          */
         private final TethysUIFXNode theNode;
 
         /**
          * Region.
          */
         private final Region theRegion;
 
         /**
          * Constructor.
          *
          * @param pExpand true/false
          */
         TethysUIFXSpacer(final boolean pExpand) {
             theRegion = new Region();
             theRegion.setPrefWidth(getGap());
             theRegion.setPrefHeight(getGap());
             if (pExpand) {
                 if (isHorizontal) {
                     HBox.setHgrow(theRegion, Priority.ALWAYS);
                     theRegion.setMaxWidth(Double.MAX_VALUE);
                 } else {
                     VBox.setVgrow(theRegion, Priority.ALWAYS);
                     theRegion.setMaxHeight(Double.MAX_VALUE);
                 }
             }
             theNode = new TethysUIFXNode(theRegion);
         }
 
         @Override
         public TethysUIFXNode getNode() {
             return theNode;
         }
 
         @Override
         public void setEnabled(final boolean pEnabled) {
             theRegion.setDisable(!pEnabled);
         }
 
         @Override
         public void setVisible(final boolean pVisible) {
             theRegion.setVisible(pVisible);
         }
 
         @Override
         public void setPreferredWidth(final Integer pWidth) {
             /* NoOp */
         }
 
         @Override
         public void setPreferredHeight(final Integer pHeight) {
             /* NoOp */
         }
 
         @Override
         public Integer getId() {
             return -1;
         }
     }
 }