import org.apache.maven.model.v4.MavenMerger;

/**
 * The domain-specific model merger for the Maven POM, overriding generic code from parent class when necessary with
 * more adapted algorithms.
 *
 */
public class MavenModelMerger extends MavenMerger {

    /**
     * The hint key for the child path adjustment used during inheritance for URL calculations.
     */
    public static final String CHILD_PATH_ADJUSTMENT = "child-path-adjustment";

import org.apache.maven.model.building.ModelProblem.Version;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblemCollectorRequest;
import org.apache.maven.model.merge.MavenModelMerger;

/**
 * Handles injection of plugin executions induced by the lifecycle bindings for a packaging.
 *
 */
@Named
@Singleton
public class DefaultLifecycleBindingsInjector implements LifecycleBindingsInjector {

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;

class MavenModelMergerTest {
    private MavenModelMerger modelMerger = new MavenModelMerger();

    // modelVersion is neither inherited nor injected
    @Test
    void testMergeModel_ModelVersion() {
        Model parent = Model.newBuilder().modelVersion("4.0.0").build();

            builder.dependencies(normalized.values());
        }

        return builder.build();
    }

    /**
     * DuplicateMerger
     */
    protected static class DuplicateMerger extends MavenModelMerger {

        public Plugin mergePlugin(Plugin target, Plugin source) {
            return super.mergePlugin(target, source, false, Collections.emptyMap());
        }
    }

    @Override

        return merger.mergeManagedBuildPlugins(model);
    }

    /**
     * ManagementModelMerger
     */
    protected static class ManagementModelMerger extends MavenModelMerger {

        public Model mergeManagedBuildPlugins(Model model) {
            Build build = model.getBuild();
            if (build != null) {

        Map<Object, Object> hints = new HashMap<>();
        String childPath = child.getProperties().getOrDefault(CHILD_DIRECTORY_PROPERTY, child.getArtifactId());
        hints.put(CHILD_DIRECTORY, childPath);
        hints.put(MavenModelMerger.CHILD_PATH_ADJUSTMENT, getChildPathAdjustment(child, parent, childPath));
        return merger.merge(child, parent, false, hints);
    }

    /**

        return merger.mergeManagedDependencies(model);
    }

    /**
     * ManagementModelMerger
     */
    protected static class ManagementModelMerger extends MavenModelMerger {

        public Model mergeManagedDependencies(Model model) {
            DependencyManagement dependencyManagement = model.getDependencyManagement();
            if (dependencyManagement != null) {

        }
        return id;
    }

    /**
     *  The domain-specific model merger for lifecycle bindings
     */
    protected static class LifecycleBindingsMerger extends MavenModelMerger {

        private static final String PLUGIN_MANAGEMENT = "plugin-management";

        public Model merge(Model target, Model source) {
            Build targetBuild = target.getBuild();

            }
        }
        return model == orgModel ? KEY : model;
    }

    /**
     * ProfileModelMerger
     */
    protected static class ProfileModelMerger extends MavenModelMerger {

        public void mergeModelBase(ModelBase.Builder builder, ModelBase target, ModelBase source) {
            mergeModelBase(builder, target, source, true, Collections.emptyMap());
        }