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/*
 * Copyright 2017-2023 original 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 io.micronaut.starter.feature.discovery;

import io.micronaut.core.annotation.NonNull;
import io.micronaut.starter.application.ApplicationType;
import io.micronaut.starter.application.generator.GeneratorContext;
import io.micronaut.starter.build.dependencies.Dependency;
import io.micronaut.starter.build.dependencies.MicronautDependencyUtils;
import io.micronaut.starter.feature.Category;
import io.micronaut.starter.feature.Feature;
import io.micronaut.starter.feature.FeatureContext;
import io.micronaut.starter.feature.httpclient.HttpClientFeature;
import io.micronaut.starter.feature.other.HttpClient;
import jakarta.inject.Inject;
import jakarta.inject.Singleton;

@Singleton
public class DiscoveryClient implements Feature {
    public static final String NAME = "discovery-client";
    private static final String ARTIFACT_ID_MICRONAUT_DISCOVERY_CLIENT = "micronaut-discovery-client";
    private static final Dependency DEPENDENCY_MICRONAUT_DISCOVERY_CLIENT = MicronautDependencyUtils.discovery()
            .artifactId(ARTIFACT_ID_MICRONAUT_DISCOVERY_CLIENT)
            .compile()
            .build();

    private final HttpClient httpClient;

    @Inject
    public DiscoveryClient(HttpClient httpClient) {
        this.httpClient = httpClient;
    }

    /**
     * @deprecated Use {@link DiscoveryClient(HttpClient)} instead.
     */
    @Deprecated
    public DiscoveryClient() {
        this(new HttpClient());
    }

    @NonNull
    @Override
    public String getName() {
        return NAME;
    }

    @Override
    public String getTitle() {
        return "Micronaut Discovery Client";
    }

    @Override
    public String getDescription() {
        return "Adds micronaut-discovery-client dependency which provides an implmentation of the DiscoveryClient API.";
    }

    @Override
    public void processSelectedFeatures(FeatureContext featureContext) {
        if (!featureContext.isPresent(HttpClientFeature.class)) {
            featureContext.addFeature(httpClient);
        }
    }

    public void apply(GeneratorContext generatorContext) {
        generatorContext.addDependency(DEPENDENCY_MICRONAUT_DISCOVERY_CLIENT);
    }

    @Override
    public String getMicronautDocumentation() {
        return "https://micronaut-projects.github.io/micronaut-discovery-client/latest/guide/";
    }

    @Override
    public boolean supports(ApplicationType applicationType) {
        return applicationType != ApplicationType.CLI;
    }

    @Override
    public String getCategory() {
        return Category.SERVICE_DISCOVERY;
    }
}