/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 *
 *   http://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.eclipse.aether.internal.test.util;

import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.graph.DefaultDependencyNode;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.DependencyNode;
import org.eclipse.aether.version.InvalidVersionSpecificationException;
import org.eclipse.aether.version.VersionScheme;

/**
 * A builder to create dependency nodes for unit testing.
 */
public class NodeBuilder {

    private String groupId = "test";

    private String artifactId = "";

    private String version = "0.1";

    private String range;

    private String ext = "jar";

    private final String classifier = "";

    private String scope = "compile";

    private boolean optional = false;

    private String context;

    private final List<Artifact> relocations = new ArrayList<>();

    private final VersionScheme versionScheme = new TestVersionScheme();

    private Map<String, String> properties = new HashMap<>(0);

    public NodeBuilder artifactId(String artifactId) {
        this.artifactId = artifactId;
        return this;
    }

    public NodeBuilder groupId(String groupId) {
        this.groupId = groupId;
        return this;
    }

    public NodeBuilder ext(String ext) {
        this.ext = ext;
        return this;
    }

    public NodeBuilder version(String version) {
        this.version = version;
        this.range = null;
        return this;
    }

    public NodeBuilder range(String range) {
        this.range = range;
        return this;
    }

    public NodeBuilder scope(String scope) {
        this.scope = scope;
        return this;
    }

    public NodeBuilder optional(boolean optional) {
        this.optional = optional;
        return this;
    }

    public NodeBuilder context(String context) {
        this.context = context;
        return this;
    }

    public NodeBuilder reloc(String artifactId) {
        Artifact relocation = new DefaultArtifact(groupId, artifactId, classifier, ext, version);
        relocations.add(relocation);
        return this;
    }

    public NodeBuilder reloc(String groupId, String artifactId, String version) {
        Artifact relocation = new DefaultArtifact(groupId, artifactId, classifier, ext, version);
        relocations.add(relocation);
        return this;
    }

    public NodeBuilder properties(Map<String, String> properties) {
        this.properties = properties != null ? properties : Collections.<String, String>emptyMap();
        return this;
    }

    public DependencyNode build() {
        Dependency dependency = null;
        if (artifactId != null && !artifactId.isEmpty()) {
            Artifact artifact =
                    new DefaultArtifact(groupId, artifactId, classifier, ext, version, properties, (File) null);
            dependency = new Dependency(artifact, scope, optional);
        }
        DefaultDependencyNode node = new DefaultDependencyNode(dependency);
        if (artifactId != null && !artifactId.isEmpty()) {
            try {
                node.setVersion(versionScheme.parseVersion(version));
                node.setVersionConstraint(versionScheme.parseVersionConstraint(range != null ? range : version));
            } catch (InvalidVersionSpecificationException e) {
                throw new IllegalArgumentException("bad version: " + e.getMessage(), e);
            }
        }
        node.setRequestContext(context);
        node.setRelocations(relocations);
        return node;
    }
}
