/*
 * Copyright 2021 the original author or authors.
 * <p>
 * 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
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 org.openrewrite.java.tree;

import lombok.Value;
import lombok.With;
import org.openrewrite.Cursor;
import org.openrewrite.PrintOutputCapture;
import org.openrewrite.marker.Marker;
import org.openrewrite.marker.Markers;

import java.util.function.UnaryOperator;

@Value
public class TextComment implements Comment {
    @With
    boolean multiline;

    String text;

    public TextComment withText(String text) {
        if(!text.equals(this.text)) {
            return new TextComment(multiline, text, suffix, markers);
        }
        return this;
    }

    String suffix;

    @SuppressWarnings("unchecked")
    public TextComment withSuffix(String suffix) {
        if(!suffix.equals(this.suffix)) {
            return new TextComment(multiline, text, suffix, markers);
        }
        return this;
    }

    @With
    Markers markers;

    private static final UnaryOperator<String> JAVA_MARKER_WRAPPER =
            out -> "/*~~" + out + (out.isEmpty() ? "" : "~~") + ">*/";

    @Override
    public <P> void printComment(Cursor cursor, PrintOutputCapture<P> p) {
        for (Marker marker : markers.getMarkers()) {
            p.append(p.getMarkerPrinter().beforeSyntax(marker, new Cursor(cursor, this), JAVA_MARKER_WRAPPER));
        }
        p.append(multiline ? "/*" + text + "*/" : "//" + text);
        for (Marker marker : markers.getMarkers()) {
            p.append(p.getMarkerPrinter().afterSyntax(marker, new Cursor(cursor, this), JAVA_MARKER_WRAPPER));
        }
    }
}
