/**
 * This work was created by participants in the DataONE project, and is
 * jointly copyrighted by participating institutions in DataONE. For 
 * more information on DataONE, see our web site at http://dataone.org.
 *
 *   Copyright ${year}
 *
 * 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
 *
 *   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.
 * 
 * $Id$
 */

package org.dataone.cn.utility.versiontool;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.jar.Attributes;
import java.util.jar.Manifest;

import org.apache.commons.lang3.StringUtils;

public class ComponentVersionInfo {

    private final DateFormat format = new SimpleDateFormat("MM/dd/yyyy:HH:mm");

    private static final String D1_VERSION = "D1-version";
    private static final String D1_BRANCH = "D1-SCM-Branch";
    private static final String D1_REVISION = "D1-SCM-Revision";
    private static final String D1_BUILD_TIME = "D1-Build-TimeStamp";

    private String name = "";
    private String path = "";
    private String version = "";
    private String branch = "";
    private String revision = "";
    private long buildTime;
    private String buildTimeString = "";
    private boolean dependent = false;

    private List<ComponentVersionInfo> dependencies = new ArrayList<ComponentVersionInfo>();

    public ComponentVersionInfo(String artifactName, String path, String version, String branch,
            String revision, long buildMilliseconds) {
        this.name = artifactName;
        if (path != null) {
            this.path = path;
        }
        if (version != null) {
            this.version = version;
        }
        if (branch != null) {
            this.branch = branch;
        }
        if (revision != null) {
            this.revision = revision;
        }
        this.buildTime = buildMilliseconds;
        this.buildTimeString = format.format(new Date(buildMilliseconds));
    }

    public ComponentVersionInfo(String name, String path, Manifest manifest) {
        this.name = name;
        if (path != null) {
            this.path = path;
        }
        if (manifest != null) {
            Attributes attribs = manifest.getMainAttributes();
            if (attribs.getValue(D1_VERSION) != null) {
                version = attribs.getValue(D1_VERSION);
            }
            if (attribs.getValue(D1_BRANCH) != null) {
                branch = attribs.getValue(D1_BRANCH);
            }
            if (attribs.getValue(D1_REVISION) != null) {
                revision = attribs.getValue(D1_REVISION);
            }
            if (StringUtils.isNotEmpty(attribs.getValue(D1_BUILD_TIME))) {
                buildTime = Long.parseLong(attribs.getValue(D1_BUILD_TIME));
                this.buildTimeString = format.format(buildTime);
            }
        }
    }

    public String getName() {
        return name;
    }

    public String getPath() {
        return path;
    }

    public String getVersion() {
        return version;
    }

    public void setVersion(String version) {
        this.version = version;
    }

    public String getBranch() {
        return branch;
    }

    public String getRevision() {
        return revision;
    }

    public long getBuildTime() {
        return buildTime;
    }

    public String getBuildTimeString() {
        return buildTimeString;
    }

    public boolean isDependent() {
        return dependent;
    }

    public boolean isMainComponent() {
        return !dependent;
    }

    private void setDependent(boolean depVal) {
        dependent = depVal;
    }

    public void addDependency(ComponentVersionInfo cvi) {
        cvi.setDependent(true);
        dependencies.add(cvi);
    }

    public List<ComponentVersionInfo> getDependencies() {
        return dependencies;
    }
}