<?php
/*
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information please see
 * <http://phing.info>.
 */

require_once 'phing/tasks/ext/ExtractBaseTask.php';
require_once 'phing/system/io/FileSystem.php';

/**
 * Extracts one or several zip archives using ZipArchive class.
 *
 * @author  Joakim Bodin <joakim.bodin+phing@gmail.com>
 * @author  George Miroshnikov <laggy.luke@gmail.com>
 * @version $Id: UnzipTask.php 905 2010-10-05 16:28:03Z mrook $
 * @package phing.tasks.ext
 */
class UnzipTask extends ExtractBaseTask
{
    /**
     * Extract archive content into $this->todir directory
     * @param PhingFile Zip file to extract
     * @return boolean
     */
    protected function extractArchive(PhingFile $zipfile)
    {
        $this->log("Extracting zip: " . $zipfile->__toString() . ' to ' . $this->todir->__toString(), Project::MSG_INFO);
        
        $zip = new ZipArchive();
        
        $result = $zip->open($zipfile->getAbsolutePath());
        if (!$result) {
            $this->log("Unable to open zipfile " . $zipfile->__toString(), Project::MSG_ERR);
            return false;
        }
        
        $result = $zip->extractTo($this->todir->getAbsolutePath());
        if (!$result) {
            $this->log("Unable to extract zipfile " . $zipfile->__toString(), Project::MSG_ERR);
            return false;
        }
        
        return true;
    }
    
    /**
     * List archive content
     * @param PhingFile Zip file to list content
     * @return array List of files inside $zipfile
     */
    protected function listArchiveContent(PhingFile $zipfile)
    {
        $zip = new ZipArchive();
        $zip->open($zipfile->getAbsolutePath());
        
        $content = array();
        for ($i = 0; $i < $zip->numFiles; $i++) {
            $content[] = $zip->getNameIndex($i);
        }
        return $content;
    }
}