<?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, see

 * <http://www.doctrine-project.org>.

 */

namespace Doctrine\DBAL\Schema;

/**

 * Schema manager for the MySql RDBMS.

 *

 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL

 * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>

 * @author      Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)

 * @author      Roman Borschel <roman@code-factory.org>

 * @author      Benjamin Eberlei <kontakt@beberlei.de>

 * @version     $Revision$

 * @since       2.0

 */

class MySqlSchemaManager extends AbstractSchemaManager

{

    protected function _getPortableViewDefinition($view)

    {

        return new View($view['TABLE_NAME'], $view['VIEW_DEFINITION']);

    }

    protected function _getPortableTableDefinition($table)

    {

        return array_shift($table);

    }

    protected function _getPortableUserDefinition($user)

    {

        return array(

            'user' => $user['User'],

            'password' => $user['Password'],

        );

    }

    protected function _getPortableTableIndexesList($tableIndexes, $tableName=null)

    {

        foreach($tableIndexes AS $k => $v) {

            $v = array_change_key_case($v, CASE_LOWER);

            if($v['key_name'] == 'PRIMARY') {

                $v['primary'] = true;

            } else {

                $v['primary'] = false;

            }

            $tableIndexes[$k] = $v;

        }

        return parent::_getPortableTableIndexesList($tableIndexes, $tableName);

    }

    protected function _getPortableSequenceDefinition($sequence)

    {

        return end($sequence);

    }

    protected function _getPortableDatabaseDefinition($database)

    {

        return $database['Database'];

    }

    /**

     * Gets a portable column definition.

     * 

     * The database type is mapped to a corresponding Doctrine mapping type.

     * 

     * @param $tableColumn

     * @return array

     */

    protected function _getPortableTableColumnDefinition($tableColumn)

    {

        $tableColumn = array_change_key_case($tableColumn, CASE_LOWER);

        $dbType = strtolower($tableColumn['type']);

        $dbType = strtok($dbType, '(), ');

        if (isset($tableColumn['length'])) {

            $length = $tableColumn['length'];

            $decimal = '';

        } else {

            $length = strtok('(), ');

            $decimal = strtok('(), ') ? strtok('(), '):null;

        }

        $type = array();

        $unsigned = $fixed = null;

        if ( ! isset($tableColumn['name'])) {

            $tableColumn['name'] = '';

        }

        $scale = null;

        $precision = null;

        $type = $this->_platform->getDoctrineTypeMapping($dbType);

        $type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);

        $tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);

        switch ($dbType) {

            case 'char':

                $fixed = true;

                break;

            case 'float':

            case 'double':

            case 'real':

            case 'numeric':

            case 'decimal':

                if(preg_match('([A-Za-z]+\(([0-9]+)\,([0-9]+)\))', $tableColumn['type'], $match)) {

                    $precision = $match[1];

                    $scale = $match[2];

                    $length = null;

                }

                break;

            case 'tinyint':

            case 'smallint':

            case 'mediumint':

            case 'int':

            case 'integer':

            case 'bigint':

            case 'tinyblob':

            case 'mediumblob':

            case 'longblob':

            case 'blob':

            case 'binary':

            case 'varbinary':

            case 'year':

                $length = null;

                break;

        }

        $length = ((int) $length == 0) ? null : (int) $length;

        $def =  array(

            'type' => $type,

            'length' => $length,

            'unsigned' => (bool) $unsigned,

            'fixed' => (bool) $fixed

        );

        $options = array(

            'length'        => $length,

            'unsigned'      => (bool)$unsigned,

            'fixed'         => (bool)$fixed,

            'default'       => $tableColumn['default'],

            'notnull'       => (bool) ($tableColumn['null'] != 'YES'),

            'scale'         => null,

            'precision'     => null,

            'autoincrement' => (bool) (strpos($tableColumn['extra'], 'auto_increment') !== false),

            'comment'       => (isset($tableColumn['comment'])) ? $tableColumn['comment'] : null

        );

        if ($scale !== null && $precision !== null) {

            $options['scale'] = $scale;

            $options['precision'] = $precision;

        }

        return new Column($tableColumn['field'], \Doctrine\DBAL\Types\Type::getType($type), $options);

    }

    public function _getPortableTableForeignKeyDefinition($tableForeignKey)

    {

        $tableForeignKey = array_change_key_case($tableForeignKey, CASE_LOWER);

        if (!isset($tableForeignKey['delete_rule']) || $tableForeignKey['delete_rule'] == "RESTRICT") {

            $tableForeignKey['delete_rule'] = null;

        }

        if (!isset($tableForeignKey['update_rule']) || $tableForeignKey['update_rule'] == "RESTRICT") {

            $tableForeignKey['update_rule'] = null;

        }

        return new ForeignKeyConstraint(

            (array)$tableForeignKey['column_name'],

            $tableForeignKey['referenced_table_name'],

            (array)$tableForeignKey['referenced_column_name'],

            $tableForeignKey['constraint_name'],

            array(

                'onUpdate' => $tableForeignKey['update_rule'],

                'onDelete' => $tableForeignKey['delete_rule'],

            )

        );

    }

}