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package com.vaadin.flow.component.map.configuration.layer;

/*
 * #%L
 * Vaadin Map
 * %%
 * Copyright (C) 2022 - 2022 Vaadin Ltd
 * %%
 * This program is available under Commercial Vaadin Developer License
 * 4.0 (CVDLv4).
 *
 * See the file license.html distributed with this software for more
 * information about licensing.
 *
 * For the full License, see .
 * #L%
 */

import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.fasterxml.jackson.annotation.JsonIdentityReference;
import com.fasterxml.jackson.annotation.ObjectIdGenerators;
import com.vaadin.flow.component.map.configuration.Constants;
import com.vaadin.flow.component.map.configuration.source.ImageSource;

import java.util.Objects;

/**
 * Layer for server-rendered images that are available in arbitrary extents and
 * resolutions.
 */
public class ImageLayer extends Layer {

    private ImageSource source;

    @Override
    public String getType() {
        return Constants.OL_LAYER_IMAGE;
    }

    /**
     * @return source for this layer, null by default
     */
    @JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class, property = "id")
    @JsonIdentityReference(alwaysAsId = true)
    public ImageSource getSource() {
        return source;
    }

    /**
     * Sets the source for this layer. The source must be a subclass of
     * {@link ImageSource}, which means that it provides single, untiled images.
     *
     * @param source
     *            the new source for the layer, not null
     */
    public void setSource(ImageSource source) {
        Objects.requireNonNull(source);
        removeChild(this.source);
        this.source = source;
        addChild(source);
    }
}