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/*
 * @(#)AbstractDrawingEditor.java
 * Copyright © 2023 The authors and contributors of JHotDraw. MIT License.
 */
package org.jhotdraw8.draw;

import javafx.beans.property.DoubleProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ReadOnlyProperty;
import javafx.beans.property.SetProperty;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleSetProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.SetChangeListener;
import org.jspecify.annotations.Nullable;
import org.jhotdraw8.base.event.Listener;
import org.jhotdraw8.draw.css.value.CssColor;
import org.jhotdraw8.draw.handle.HandleType;
import org.jhotdraw8.draw.tool.Tool;
import org.jhotdraw8.draw.tool.ToolEvent;
import org.jhotdraw8.fxbase.beans.NonNullObjectProperty;
import org.jhotdraw8.fxbase.undo.FXUndoManager;

import java.util.HashSet;

public abstract class AbstractDrawingEditor implements DrawingEditor {
    @SuppressWarnings("this-escape")
    private final ObjectProperty helpText = new SimpleObjectProperty<>(this, HELP_TEXT_PROPERTY);
    @SuppressWarnings("this-escape")
    private final NonNullObjectProperty undoManager = new NonNullObjectProperty<>(this, UNDO_MANAGER_PROPERTY, new FXUndoManager());
    private final DoubleProperty handleSize = new SimpleDoubleProperty(
            this, HANDLE_SIZE_PROPERTY, 5.0) {
        @Override
        public void set(double newValue) {
            super.set(newValue);
            recreateHandles();
        }
    };
    private final DoubleProperty tolerance = new SimpleDoubleProperty(
            this, TOLERANCE_PROPERTY, 5.0) {
        @Override
        public void set(double newValue) {
            super.set(newValue);
            recreateHandles();
        }
    };
    private final DoubleProperty handleStrokeWidth = new SimpleDoubleProperty(
            this, HANDLE_STROKE_WDITH_PROPERTY, 1.0) {
        @Override
        public void set(double newValue) {
            super.set(newValue);
            recreateHandles();
        }
    };
    private final NonNullObjectProperty handleColor = new NonNullObjectProperty<>(this, HANDLE_COLOR_PROPERTY,
            CssColor.valueOf("blue")) {
        @Override
        public void set(CssColor newValue) {
            super.set(newValue);
            recreateHandles();
        }
    };
    @SuppressWarnings("this-escape")
    private final NonNullObjectProperty handleType = new NonNullObjectProperty<>(this, HANDLE_TYPE_PROPERTY, HandleType.RESIZE);
    @SuppressWarnings("this-escape")
    private final ObjectProperty leadHandleType = new SimpleObjectProperty<>(this, HANDLE_TYPE_PROPERTY, HandleType.RESIZE);

    @SuppressWarnings("this-escape")
    private final ObjectProperty anchorHandleType = new SimpleObjectProperty<>(this, HANDLE_TYPE_PROPERTY, HandleType.RESIZE);

    @SuppressWarnings("this-escape")
    private final NonNullObjectProperty multiHandleType = new NonNullObjectProperty<>(this, MULTI_HANDLE_TYPE_PROPERTY, HandleType.SELECT);
    @SuppressWarnings("this-escape")
    private final SetProperty drawingViews = new SimpleSetProperty<>(this, DRAWING_VIEWS_PROPERTY, FXCollections.observableSet(new HashSet<>()));
    private final ChangeListener focusListener = (ObservableValue observable, Boolean oldValue, Boolean newValue) -> {
        if (newValue) {
            setActiveDrawingView((DrawingView) ((ReadOnlyProperty) observable).getBean());
        }
    };
    private final @Nullable Listener defaultToolActivator = (event) -> {
        switch (event.getEventType()) {
        case TOOL_DONE:
            if (getDefaultTool() != event.getSource() && getDefaultTool() != null) {
                setActiveTool(getDefaultTool());
            }
            break;
        default:
            break;
        }
    };
    private final ObjectProperty activeDrawingView = new SimpleObjectProperty<>(this, ACTIVE_DRAWING_VIEW_PROPERTY);
    private final ObjectProperty activeTool = new SimpleObjectProperty<>(this, ACTIVE_TOOL_PROPERTY);
    private final ObjectProperty defaultTool = new SimpleObjectProperty<>(this, DEFAULT_TOOL_PROPERTY);

    {
        ChangeListener