<?php

namespace ByJG\DbMigration\Database;

use Psr\Http\Message\UriInterface;

class SqliteDatabase extends AbstractDatabase
{
    public static function prepareEnvironment(UriInterface $uri)
    {
    }

    public function createDatabase()
    {
    }

    public function dropDatabase()
    {
        $iterator = $this->getDbDriver()->getIterator("\n            select \n                'drop ' || type || ' ' || name || ';' as command \n            from sqlite_master \n            where name <> 'sqlite_sequence' and name not like 'sqlite_autoindex_%'\n            order by CASE type\n                         WHEN 'index' THEN 0\n                         WHEN 'trigger' THEN 1\n                         WHEN 'view' THEN 2\n                         ELSE 99\n                    END;\n        ");

        foreach ($iterator as $row) {
            $this->getDbDriver()->execute($row->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);
    }

    protected function isTableExists($schema, $table)
    {
        $count = $this->getDbDriver()->getScalar(
            "SELECT count(*) FROM sqlite_master WHERE type='table' AND name=[[table]]",
            [
                "table" => $table
            ]
        );

        return (intval($count) !== 0);
    }

    public function isDatabaseVersioned()
    {
        return $this->isTableExists(null, $this->getMigrationTable());
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----OTc1MDA5MTQ2NjIxMjg1IDQxMTQxNDM4MTcwMDU2OSA0MTgzNjkyNzM2ODk4MDAy