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/*
 * Copyright 2022 the original author or authors.
 * 
 * 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
 * 

 * https://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 org.openrewrite;

import lombok.EqualsAndHashCode;
import lombok.Value;
import org.jspecify.annotations.Nullable;
import org.openrewrite.marker.SearchResult;
import org.openrewrite.quark.Quark;

import static java.util.Objects.requireNonNull;

@Value
@EqualsAndHashCode(callSuper = false)
public class FindQuarks extends Recipe {
    @Override
    public String getDisplayName() {
        return "Find instances of type `Quark`";
    }

    @Override
    public String getDescription() {
        return "`Quark` source files are pointers to the existence of a file without capturing any of the contents of the file.";
    }

    @Override
    public TreeVisitor getVisitor() {
        return new TreeVisitor() {
            @Override
            public Tree visit(@Nullable Tree tree, ExecutionContext ctx) {
                SourceFile sourceFile = (SourceFile) requireNonNull(tree);
                if (sourceFile instanceof Quark) {
                    return SearchResult.found(sourceFile);
                }
                return sourceFile;
            }
        };
    }
}