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/*
 * Copyright © 2015 Stefan Niederhauser ([email protected])
 *
 * 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 guru.nidi.graphviz.engine;

import org.slf4j.LoggerFactory;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.function.Consumer;

import static guru.nidi.graphviz.engine.GraphvizLoader.isOnClasspath;

public interface Rasterizer {
    Rasterizer NONE = new NopRasterizer();
    Rasterizer BATIK = isOnClasspath("org/apache/batik/transcoder/Transcoder.class") ? new BatikRasterizer() : NONE;
    Rasterizer SALAMANDER = isOnClasspath("com/kitfox/svg/SVGDiagram.class") ? new SalamanderRasterizer() : NONE;
    Rasterizer DEFAULT = getDefault();

    static Rasterizer getDefault() {
        final Rasterizer r = BATIK != NONE ? BATIK : SALAMANDER;
        if (r == NONE) {
            LoggerFactory.getLogger(Rasterizer.class).warn("Neither Batik nor Salamander found on classpath");
        }
        return r;
    }

    static Rasterizer builtIn(String format) {
        return new BuiltInRasterizer(format, null, null);
    }

    static Rasterizer builtIn(String format, String renderer) {
        return new BuiltInRasterizer(format, renderer, null);
    }

    static Rasterizer builtIn(String format, String renderer, String formatter) {
        return new BuiltInRasterizer(format, renderer, formatter);
    }

    Format format();

    BufferedImage rasterize(Graphviz graphviz, Consumer graphicsConfigurer, String input);
}