<?php
/*
 *  $Id$
 *
 * 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, see
 * <http://www.doctrine-project.org>.
 */

namespace Doctrine\ORM\Tools\Console\Command;

use Symfony\Component\Console\Input\InputArgument,
    Symfony\Component\Console\Input\InputOption,
    Symfony\Component\Console,
    Doctrine\ORM\Tools\Console\MetadataFilter,
    Doctrine\ORM\Tools\Export\ClassMetadataExporter,
    Doctrine\ORM\Tools\EntityGenerator,
    Doctrine\ORM\Tools\DisconnectedClassMetadataFactory;

/**
 * Command to convert your mapping information between the various formats.
 *
 * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @link    www.doctrine-project.org
 * @since   2.0
 * @version $Revision$
 * @author  Benjamin Eberlei <kontakt@beberlei.de>
 * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author  Jonathan Wage <jonwage@gmail.com>
 * @author  Roman Borschel <roman@code-factory.org>
 */
class ConvertMappingCommand extends Console\Command\Command
{
    /**
     * @see Console\Command\Command
     */
    protected function configure()
    {
        $this
        ->setName('orm:convert-mapping')
        ->setDescription('Convert mapping information between supported formats.')
        ->setDefinition(array(
            new InputOption(
                'filter', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY,
                'A string pattern used to match entities that should be processed.'
            ),
            new InputArgument(
                'to-type', InputArgument::REQUIRED, 'The mapping type to be converted.'
            ),
            new InputArgument(
                'dest-path', InputArgument::REQUIRED,
                'The path to generate your entities classes.'
            ),
            new InputOption(
                'from-database', null, null, 'Whether or not to convert mapping information from existing database.'
            ),
            new InputOption(
                'extend', null, InputOption::VALUE_OPTIONAL,
                'Defines a base class to be extended by generated entity classes.'
            ),
            new InputOption(
                'num-spaces', null, InputOption::VALUE_OPTIONAL,
                'Defines the number of indentation spaces', 4
            )
        ))
        ->setHelp(<<<EOT
Convert mapping information between supported formats.
EOT
        );
    }

    /**
     * @see Console\Command\Command
     */
    protected function execute(Console\Input\InputInterface $input, Console\Output\OutputInterface $output)
    {
        $em = $this->getHelper('em')->getEntityManager();

        if ($input->getOption('from-database') === true) {
            $em->getConfiguration()->setMetadataDriverImpl(
                new \Doctrine\ORM\Mapping\Driver\DatabaseDriver(
                    $em->getConnection()->getSchemaManager()
                )
            );
        }

        $cmf = new DisconnectedClassMetadataFactory();
        $cmf->setEntityManager($em);
        $metadata = $cmf->getAllMetadata();
        $metadata = MetadataFilter::filter($metadata, $input->getOption('filter'));

        // Process destination directory
        if ( ! is_dir($destPath = $input->getArgument('dest-path'))) {
            mkdir($destPath, 0777, true);
        }
        $destPath = realpath($destPath);

        if ( ! file_exists($destPath)) {
            throw new \InvalidArgumentException(
                sprintf("Mapping destination directory '<info>%s</info>' does not exist.", $destPath)
            );
        } else if ( ! is_writable($destPath)) {
            throw new \InvalidArgumentException(
                sprintf("Mapping destination directory '<info>%s</info>' does not have write permissions.", $destPath)
            );
        }

        $toType = strtolower($input->getArgument('to-type'));

        $cme = new ClassMetadataExporter();
        $exporter = $cme->getExporter($toType, $destPath);

        if ($toType == 'annotation') {
            $entityGenerator = new EntityGenerator();
            $exporter->setEntityGenerator($entityGenerator);

            $entityGenerator->setNumSpaces($input->getOption('num-spaces'));

            if (($extend = $input->getOption('extend')) !== null) {
                $entityGenerator->setClassToExtend($extend);
            }
        }

        if (count($metadata)) {
            foreach ($metadata as $class) {
                $output->write(sprintf('Processing entity "<info>%s</info>"', $class->name) . PHP_EOL);
            }

            $exporter->setMetadata($metadata);
            $exporter->export();

            $output->write(PHP_EOL . sprintf(
                'Exporting "<info>%s</info>" mapping information to "<info>%s</info>"' . PHP_EOL, $toType, $destPath
            ));
        } else {
            $output->write('No Metadata Classes to process.' . PHP_EOL);
        }
    }
}