/*
 * 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.apache.maven.scm.plugin;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.annotations.Mojo;
import org.apache.maven.plugins.annotations.Parameter;
import org.apache.maven.scm.ScmException;
import org.apache.maven.scm.ScmTagParameters;
import org.apache.maven.scm.command.tag.TagScmResult;
import org.apache.maven.scm.provider.ScmProvider;
import org.apache.maven.scm.repository.ScmRepository;

/**
 * Tag the project.
 *
 * @author <a href="evenisse@apache.org">Emmanuel Venisse</a>
 * @author <a href="saden1@gmil.com">Sharmarke Aden</a>
 */
@Mojo(name = "tag", aggregator = true)
public class TagMojo extends AbstractScmMojo {
    /**
     * The tag name.
     */
    @Parameter(property = "tag", required = true)
    private String tag;

    /**
     * The message applied to the tag creation.
     */
    @Parameter(property = "message")
    private String message;

    /**
     * Set the timestamp format.
     */
    @Parameter(property = "timestampFormat", defaultValue = "yyyyMMddHHmmss")
    private String timestampFormat;

    /**
     * Use timestamp tagging.
     */
    @Parameter(property = "addTimestamp", defaultValue = "false")
    private boolean addTimestamp;

    /**
     * Define the timestamp position (end or begin).
     */
    @Parameter(property = "timestampPosition", defaultValue = "end")
    private String timestampPosition;

    /**
     * Timestamp tag prefix.
     */
    @Parameter(property = "timestampPrefix", defaultValue = "-")
    private String timestampPrefix;

    /**
     * currently only implemented with svn scm. Enable a workaround to prevent issue
     * due to svn client > 1.5.0 (https://issues.apache.org/jira/browse/SCM-406)
     *
     * @since 1.2
     */
    @Parameter(property = "remoteTagging", defaultValue = "true")
    private boolean remoteTagging;

    /**
     * Currently only implemented with Subversion. Enable the "--pin-externals"
     * option in svn copy commands which is new in Subversion 1.9.
     *
     * @since 1.11.0
     *
     * @see https://subversion.apache.org/docs/release-notes/1.9.html
     */
    @Parameter(property = "pinExternals", defaultValue = "false")
    private boolean pinExternals;

    /**
     * Enable the "--sign" in Git
     *
     * @since 1.11.0
     */
    @Parameter(property = "sign", defaultValue = "false")
    private boolean sign;

    /** {@inheritDoc} */
    public void execute() throws MojoExecutionException {
        super.execute();

        try {
            SimpleDateFormat dateFormat = null;
            String tagTimestamp = "";
            String finalTag = tag;

            if (addTimestamp) {
                try {
                    getLog().info("Using timestamp pattern '" + timestampFormat + "'");
                    dateFormat = new SimpleDateFormat(timestampFormat);
                    tagTimestamp = dateFormat.format(new Date());
                    getLog().info("Using timestamp '" + tagTimestamp + "'");
                } catch (IllegalArgumentException e) {
                    String msg = "The timestamp format '" + timestampFormat + "' is invalid.";
                    getLog().error(msg, e);
                    throw new MojoExecutionException(msg, e);
                }

                if ("end".equals(timestampPosition)) {
                    finalTag += timestampPrefix + tagTimestamp;
                } else {
                    finalTag = tagTimestamp + timestampPrefix + finalTag;
                }
            }

            ScmRepository repository = getScmRepository();
            ScmProvider provider = getScmManager().getProviderByRepository(repository);

            finalTag = provider.sanitizeTagName(finalTag);
            getLog().info("Final Tag Name: '" + finalTag + "'");

            ScmTagParameters scmTagParameters = new ScmTagParameters(message);
            scmTagParameters.setRemoteTagging(remoteTagging);
            scmTagParameters.setPinExternals(pinExternals);
            scmTagParameters.setSign(sign);

            TagScmResult result = provider.tag(repository, getFileSet(), finalTag, scmTagParameters);

            checkResult(result);
        } catch (IOException | ScmException e) {
            throw new MojoExecutionException("Cannot run tag command : ", e);
        }
    }
}