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Filename : dependencies.php
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<?php
/*
 * Copyright (c) 2014 Mathieu Parent <sathieu@debian.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

namespace Pkgtools\Base;

use \Pkgtools\Base\Logger;

/**
* This class represents a list of dependencies
*
* @copyright Copyright (c) 2014 Mathieu Parent <sathieu@debian.org>
* @author Mathieu Parent <sathieu@debian.org>
* @license Expat http://www.jclark.com/xml/copying.txt
*/
class Dependencies extends \ArrayObject {
    /**
     * Get dependencies in Debian format
     */
    function asDeb() {
        $result = Array();
        foreach ($this as $dep) {
            // Try to override
            $overriden = Overrides::override($dep);
            if (is_null($overriden)) {
                $overriden = $dep;
            } else {
                Logger::info('Override: %s -> %s.', $dep, $overriden);
            }
            $debDependency = $overriden->debDependency();
            Logger::debug('Debian name: %s -> %s:%s.', $dep, $overriden->level, $debDependency);
            // Dependendency may have been NULLified
            if (!is_null($debDependency)) {
                $result[$overriden->level][] = $debDependency;
            }
        }
        return $result;
    }

    /**
     * Get dependencies in readable format
     */
    function __toString() {
        $result = '';
        foreach ($this as $dep) {
            $result .= $dep . "\n";
        }
        return $result;
    }
}