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/*
 * @(#)SymmetricCssPoint2DStyleableMapAccessor.java
 * Copyright © 2023 The authors and contributors of JHotDraw. MIT License.
 */
package org.jhotdraw8.draw.key;

import org.jhotdraw8.base.converter.Converter;
import org.jhotdraw8.css.value.CssSize;
import org.jhotdraw8.draw.css.converter.SymmetricCssPoint2DCssConverter;
import org.jhotdraw8.draw.css.value.CssPoint2D;
import org.jhotdraw8.fxcollection.typesafekey.Key;
import org.jhotdraw8.fxcollection.typesafekey.NonNullMapAccessor;
import org.jhotdraw8.icollection.immutable.ImmutableMap;
import org.jspecify.annotations.Nullable;

import java.util.Map;

/**
 * SymmetricCssPoint2DStyleableMapAccessor.
 *
 * @author Werner Randelshofer
 */
public class SymmetricCssPoint2DStyleableMapAccessor
        extends AbstractStyleableMapAccessor
        implements NonNullMapAccessor {


    private final Converter converter = new SymmetricCssPoint2DCssConverter();

    private final NonNullMapAccessor xKey;
    private final NonNullMapAccessor yKey;

    /**
     * Creates a new instance with the specified name.
     *
     * @param name the name of the accessor
     * @param xKey the key for the x coordinate of the point
     * @param yKey the key for the y coordinate of the point
     */
    public SymmetricCssPoint2DStyleableMapAccessor(String name,
                                                   NonNullMapAccessor xKey,
                                                   NonNullMapAccessor yKey) {
        super(name, CssPoint2D.class, new NonNullMapAccessor[]{xKey, yKey}, new CssPoint2D(xKey.getDefaultValue(), yKey.getDefaultValue()));

        this.xKey = xKey;
        this.yKey = yKey;
    }

    @Override
    public CssPoint2D get(Map, Object> a) {
        return new CssPoint2D(xKey.get(a), yKey.get(a));
    }


    @Override
    public Converter getCssConverter() {
        return converter;
    }

    @Override
    public void set(Map, Object> a, @Nullable CssPoint2D value) {
        if (value == null) {
            remove(a);
        } else {
            xKey.put(a, value.getX());
            yKey.put(a, value.getY());
        }
    }

    @Override
    public CssPoint2D remove(Map, Object> a) {
        CssPoint2D oldValue = get(a);
        xKey.remove(a);
        yKey.remove(a);
        return oldValue;
    }

    @Override
    public ImmutableMap, Object> put(ImmutableMap, Object> a, @Nullable CssPoint2D value) {
        if (value == null) {
            return remove(a);
        } else {
            a = xKey.put(a, value.getX());
            return yKey.put(a, value.getY());
        }
    }

    @Override
    public ImmutableMap, Object> remove(ImmutableMap, Object> a) {
        a = xKey.remove(a);
        return yKey.remove(a);
    }
}