<?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.phpdoctrine.org>.

 */

namespace Doctrine\DBAL\Schema;

/**

 * Oracle Schema Manager

 *

 * @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      Benjamin Eberlei <kontakt@beberlei.de>

 * @version     $Revision$

 * @since       2.0

 */

class OracleSchemaManager extends AbstractSchemaManager

{

    protected function _getPortableViewDefinition($view)

    {

        $view = \array_change_key_case($view, CASE_LOWER);

        return new View($view['view_name'], $view['text']);

    }

    protected function _getPortableUserDefinition($user)

    {

        $user = \array_change_key_case($user, CASE_LOWER);

        return array(

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

        );

    }

    protected function _getPortableTableDefinition($table)

    {

        $table = \array_change_key_case($table, CASE_LOWER);

        return $table['table_name'];

    }

    /**

     * @license New BSD License

     * @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaPgsqlReader.html

     * @param  array $tableIndexes

     * @param  string $tableName

     * @return array

     */

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

    {

        $indexBuffer = array();

        foreach ( $tableIndexes as $tableIndex ) {

            $tableIndex = \array_change_key_case($tableIndex, CASE_LOWER);

            $keyName = strtolower($tableIndex['name']);

            if ( strtolower($tableIndex['is_primary']) == "p" ) {

                $keyName = 'primary';

                $buffer['primary'] = true;

                $buffer['non_unique'] = false;

            } else {

                $buffer['primary'] = false;

                $buffer['non_unique'] = ( $tableIndex['is_unique'] == 0 ) ? true : false;

            }

            $buffer['key_name'] = $keyName;

            $buffer['column_name'] = $tableIndex['column_name'];

            $indexBuffer[] = $buffer;

        }

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

    }

    protected function _getPortableTableColumnDefinition($tableColumn)

    {

        $tableColumn = \array_change_key_case($tableColumn, CASE_LOWER);

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

        if(strpos($dbType, "timestamp(") === 0) {

            if (strpos($dbType, "WITH TIME ZONE")) {

                $dbType = "timestamptz";

            } else {

                $dbType = "timestamp";

            }

        }

        $type = array();

        $length = $unsigned = $fixed = null;

        if ( ! empty($tableColumn['data_length'])) {

            $length = $tableColumn['data_length'];

        }

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

            $tableColumn['column_name'] = '';

        }

        if (stripos($tableColumn['data_default'], 'NULL') !== null) {

            $tableColumn['data_default'] = null;

        }

        $precision = null;

        $scale = null;

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

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

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

        switch ($dbType) {

            case 'number':

                if ($tableColumn['data_precision'] == 20 && $tableColumn['data_scale'] == 0) {

                    $precision = 20;

                    $scale = 0;

                    $type = 'bigint';

                } elseif ($tableColumn['data_precision'] == 5 && $tableColumn['data_scale'] == 0) {

                    $type = 'smallint';

                    $precision = 5;

                    $scale = 0;

                } elseif ($tableColumn['data_precision'] == 1 && $tableColumn['data_scale'] == 0) {

                    $precision = 1;

                    $scale = 0;

                    $type = 'boolean';

                } elseif ($tableColumn['data_scale'] > 0) {

                    $precision = $tableColumn['data_precision'];

                    $scale = $tableColumn['data_scale'];

                    $type = 'decimal';

                }

                $length = null;

                break;

            case 'pls_integer':

            case 'binary_integer':

                $length = null;

                break;

            case 'varchar':

            case 'varchar2':

            case 'nvarchar2':

                $length = $tableColumn['char_length'];

                $fixed = false;

                break;

            case 'char':

            case 'nchar':

                $length = $tableColumn['char_length'];

                $fixed = true;

                break;

            case 'date':

            case 'timestamp':

                $length = null;

                break;

            case 'float':

                $precision = $tableColumn['data_precision'];

                $scale = $tableColumn['data_scale'];

                $length = null;

                break;

            case 'clob':

            case 'nclob':

                $length = null;

                break;

            case 'blob':

            case 'raw':

            case 'long raw':

            case 'bfile':

                $length = null;

                break;

            case 'rowid':

            case 'urowid':

            default:

                $length = null;

        }

        $options = array(

            'notnull'    => (bool) ($tableColumn['nullable'] === 'N'),

            'fixed'      => (bool) $fixed,

            'unsigned'   => (bool) $unsigned,

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

            'length'     => $length,

            'precision'  => $precision,

            'scale'      => $scale,

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

            'platformDetails' => array(),

        );

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

    }

    protected function _getPortableTableForeignKeysList($tableForeignKeys)

    {

        $list = array();

        foreach ($tableForeignKeys as $key => $value) {

            $value = \array_change_key_case($value, CASE_LOWER);

            if (!isset($list[$value['constraint_name']])) {

                if ($value['delete_rule'] == "NO ACTION") {

                    $value['delete_rule'] = null;

                }

                $list[$value['constraint_name']] = array(

                    'name' => $value['constraint_name'],

                    'local' => array(),

                    'foreign' => array(),

                    'foreignTable' => $value['references_table'],

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

                );

            }

            $list[$value['constraint_name']]['local'][$value['position']] = $value['local_column'];

            $list[$value['constraint_name']]['foreign'][$value['position']] = $value['foreign_column'];

        }

        $result = array();

        foreach($list AS $constraint) {

            $result[] = new ForeignKeyConstraint(

                array_values($constraint['local']), $constraint['foreignTable'],

                array_values($constraint['foreign']),  $constraint['name'],

                array('onDelete' => $constraint['onDelete'])

            );

        }

        return $result;

    }

    protected function _getPortableSequenceDefinition($sequence)

    {

        $sequence = \array_change_key_case($sequence, CASE_LOWER);

        return new Sequence($sequence['sequence_name'], $sequence['increment_by'], $sequence['min_value']);

    }

    protected function _getPortableFunctionDefinition($function)

    {

        $function = \array_change_key_case($function, CASE_LOWER);

        return $function['name'];

    }

    protected function _getPortableDatabaseDefinition($database)

    {

        $database = \array_change_key_case($database, CASE_LOWER);

        return $database['username'];

    }

    public function createDatabase($database = null)

    {

        if (is_null($database)) {

            $database = $this->_conn->getDatabase();

        }

        $params = $this->_conn->getParams();

        $username   = $database;

        $password   = $params['password'];

        $query  = 'CREATE USER ' . $username . ' IDENTIFIED BY ' . $password;

        $result = $this->_conn->executeUpdate($query);

        $query = 'GRANT CREATE SESSION, CREATE TABLE, UNLIMITED TABLESPACE, CREATE SEQUENCE, CREATE TRIGGER TO ' . $username;

        $result = $this->_conn->executeUpdate($query);

        return true;

    }

    public function dropAutoincrement($table)

    {

        $sql = $this->_platform->getDropAutoincrementSql($table);

        foreach ($sql as $query) {

            $this->_conn->executeUpdate($query);

        }

        return true;

    }

    public function dropTable($name)

    {

        $this->dropAutoincrement($name);

        return parent::dropTable($name);

    }

}