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/*
 * Copyright 2021 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.properties.search;

import lombok.EqualsAndHashCode;
import lombok.Value;
import org.jspecify.annotations.Nullable;
import org.openrewrite.ExecutionContext;
import org.openrewrite.Option;
import org.openrewrite.Recipe;
import org.openrewrite.TreeVisitor;
import org.openrewrite.internal.NameCaseConvention;
import org.openrewrite.internal.StringUtils;
import org.openrewrite.marker.SearchResult;
import org.openrewrite.properties.PropertiesVisitor;
import org.openrewrite.properties.tree.Properties;

import java.util.HashSet;
import java.util.Set;

import static org.openrewrite.Tree.randomId;

@Value
@EqualsAndHashCode(callSuper = false)
public class FindProperties extends Recipe {
    @Override
    public String getDisplayName() {
        return "Find property";
    }

    @Override
    public String getDescription() {
        return "Finds occurrences of a property key.";
    }

    @Option(displayName = "Property key",
            description = "The property key to look for.",
            example = "management.metrics.binders.files.enabled")
    String propertyKey;

    @Option(displayName = "Use relaxed binding",
            description = "Whether to match the `propertyKey` using [relaxed binding](https://docs.spring.io/spring-boot/docs/2.5.6/reference/html/features.html#features.external-config.typesafe-configuration-properties.relaxed-binding) " +
                    "rules. Default is `true`. Set to `false`  to use exact matching.",
            required = false)
    @Nullable
    Boolean relaxedBinding;

    /**
     * Find a set of matching {@link Properties}.
     *
     * @param p              The set of properties to search over.
     * @param propertyKey    The name of property key to look for.
     * @param relaxedBinding Whether to match the propertyKey using relaxed binding rules. Default is true. Explicitly set to "false" to use exact matching.
     * @return The set of found properties matching the propertyKey.
     */
    public static Set find(Properties p, String propertyKey, @Nullable Boolean relaxedBinding) {
        PropertiesVisitor> findVisitor = new PropertiesVisitor>() {
            @Override
            public Properties visitEntry(Properties.Entry entry, Set ps) {
                if (!Boolean.FALSE.equals(relaxedBinding) ? NameCaseConvention.matchesGlobRelaxedBinding(entry.getKey(), propertyKey) :
                        StringUtils.matchesGlob(entry.getKey(), propertyKey)) {
                    ps.add(entry);
                }
                return super.visitEntry(entry, ps);
            }
        };

        Set ps = new HashSet<>();
        findVisitor.visit(p, ps);
        return ps;
    }

    @Override
    public TreeVisitor getVisitor() {
        return new PropertiesVisitor() {
            @Override
            public Properties visitEntry(Properties.Entry entry, ExecutionContext ctx) {
                if (!Boolean.FALSE.equals(relaxedBinding) ? NameCaseConvention.matchesGlobRelaxedBinding(entry.getKey(), propertyKey) :
                        StringUtils.matchesGlob(entry.getKey(), propertyKey)) {
                    entry = entry.withValue(entry.getValue().withMarkers(entry.getValue().getMarkers()
                            .computeByType(new SearchResult(randomId(), null), (s1, s2) -> s1 == null ? s2 : s1)));
                }
                return super.visitEntry(entry, ctx);
            }
        };
    }
}