/*
 * 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.provider.svn.svnexe.command.checkout;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.apache.maven.scm.ScmFile;
import org.apache.maven.scm.ScmFileStatus;
import org.apache.maven.scm.provider.svn.svnexe.command.AbstractFileCheckingConsumer;

/**
 * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
 * @author Olivier Lamy
 *
 */
public class SvnCheckOutConsumer extends AbstractFileCheckingConsumer {
    private static final String CHECKED_OUT_REVISION_TOKEN = "Checked out revision";

    private final List<ScmFile> files = new ArrayList<>();

    public SvnCheckOutConsumer(File workingDirectory) {
        super(workingDirectory);
    }

    /**
     * {@inheritDoc}
     */
    protected void parseLine(String line) {
        String statusString = line.substring(0, 1);

        String file = line.substring(3).trim();
        // [SCM-368]
        if (file.startsWith(getWorkingDirectory().getAbsolutePath())) {
            file = StringUtils.substring(
                    file, getWorkingDirectory().getAbsolutePath().length() + 1);
        }

        ScmFileStatus status;

        if (line.startsWith(CHECKED_OUT_REVISION_TOKEN)) {
            String revisionString = line.substring(CHECKED_OUT_REVISION_TOKEN.length() + 1, line.length() - 1);

            revision = parseInt(revisionString);

            return;
        } else if (statusString.equals("A")) {
            status = ScmFileStatus.ADDED;
        } else if (statusString.equals("U")) {
            status = ScmFileStatus.UPDATED;
        } else {
            // Do nothing

            return;
        }

        addFile(new ScmFile(file, status));
    }

    // ----------------------------------------------------------------------
    //
    // ----------------------------------------------------------------------

    public List<ScmFile> getCheckedOutFiles() {
        return getFiles();
    }

    protected void addFile(ScmFile file) {
        files.add(file);
    }

    protected List<ScmFile> getFiles() {
        List<ScmFile> onlyFiles = new ArrayList<>();
        for (ScmFile file : files) {
            // second part is for svn 1.7 as the co output is now relative not a full path as for svn 1.7-
            if (!(!file.getStatus().equals(ScmFileStatus.DELETED)
                            && !new File(getWorkingDirectory(), file.getPath()).isFile())
                    || !(!file.getStatus().equals(ScmFileStatus.DELETED)
                            && !new File(getWorkingDirectory().getParent(), file.getPath()).isFile())) {
                onlyFiles.add(file);
            }
        }

        return onlyFiles;
    }
}
