/*******************************************************************************
 *
 * Copyright (c) 2010-2011 Sonatype, Inc.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *
 *
 *
 *
 *******************************************************************************/ 

package org.hudsonci.utils.common;

/**
 * Utility supplying different ways to format a version number.
 *
 * @author Jamie Whitehouse
 * @since 2.1.0
 */
class VersionFormatter {

    /**
     * @return a formatted version number containing the raw information
     */
    public static String asRawVersion(String version, String timestamp, String sequence) {
        StringBuilder buff = new StringBuilder();

        if (version == null) {
            version = VersionSupport.UNKNOWN;
        }
        buff.append(version);

        if (timestamp != null) {
            buff.append(",").append(timestamp);
        }

        if (sequence != null) {
            buff.append("#").append(sequence);
        }

        return buff.toString();
    }

    /**
     * Generates an appropriate format based on the project being a release or
     * development version. Example: 0.2.1,201009291818#1
     *
     * @return a formatted version number in the simplest and most significant
     * form
     */
    public static String asCanonicalVersion(String version, String timestamp, String sequence) {
        String derivedVersion = version;
        if (derivedVersion == null) {
            derivedVersion = VersionSupport.UNKNOWN;
        }

        String snapshot = "-SNAPSHOT";
        if (derivedVersion.contains(snapshot)) {
            derivedVersion = asRawVersion(version.replace(snapshot, ""), timestamp, sequence);
        }

        return derivedVersion;
    }
}