<?php

namespace ByJG\DbMigration\Database;

use ByJG\AnyDataset\Db\Factory;
use ByJG\Util\Uri;
use Psr\Http\Message\UriInterface;

class PgsqlDatabase extends AbstractDatabase
{
    public static function prepareEnvironment(UriInterface $uri)
    {
        $database = preg_replace('~^/~', '', $uri->getPath());
        $dbDriver = static::getDbDriverWithoutDatabase($uri);
        static::createDatabaseIfNotExists($dbDriver, $database);
    }

    protected static function getDbDriverWithoutDatabase(UriInterface $uri)
    {
        $customUri = new Uri($uri->__toString());
        return Factory::getDbRelationalInstance($customUri->withPath('/postgres')->__toString());
    }

    /**
     * @param \ByJG\AnyDataset\Db\DbDriverInterface $dbDriver
     * @param $database
     */
    protected static function createDatabaseIfNotExists($dbDriver, $database)
    {
        $currentDbName = $dbDriver->getScalar(
            "SELECT datname FROM pg_catalog.pg_database WHERE lower(datname) = lower(:dbname)",
            ['dbname' => $database]
        );

        if (empty($currentDbName)) {
            $dbDriver->execute("CREATE DATABASE $database WITH encoding=\"UTF8\";");
        }
    }

    public function createDatabase()
    {
        $database = preg_replace('~^/~', '', $this->getDbDriver()->getUri()->getPath());
        static::createDatabaseIfNotExists($this->getDbDriver(), $database);
    }

    public function dropDatabase()
    {
        $iterator = $this->getDbDriver()->getIterator(
            "select 'drop table if exists \"' || tablename || '\" cascade;' command from pg_tables where schemaname = 'public';"
        );
        foreach ($iterator as $singleRow) {
            $this->getDbDriver()->execute($singleRow->get('command'));
        }
    }

    /**
     * @throws \ByJG\DbMigration\Exception\DatabaseNotVersionedException
     * @throws \ByJG\DbMigration\Exception\OldVersionSchemaException
     */
    public function createVersion()
    {
        $this->getDbDriver()->execute('CREATE TABLE IF NOT EXISTS ' . $this->getMigrationTable() . ' (version int, status varchar(20), PRIMARY KEY (version))');
        $this->checkExistsVersion();
    }

    public function executeSql($sql)
    {
        $statements = preg_split("/;(\r\n|\r|\n)/", $sql);

        foreach ($statements as $sql) {
            $this->executeSqlInternal($sql);
        }
    }

    protected function executeSqlInternal($sql)
    {
        if (empty(trim($sql))) {
            return;
        }
        $this->getDbDriver()->execute($sql);
    }

    public function isDatabaseVersioned()
    {
        return $this->isTableExists('public', $this->getMigrationTable());
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjExNTI4OTAyMTM2MjU0MSA5OTE5OTg1MzE2MDY1OTAgNTIzODE0MTY0NTY5MjU0Ng==