<?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:----MzQ0NTI1NzgxODY4NTc4NCA3OTY2MTQ2NDc5NzU4ODggODMxNDUxNjEwODkzNzAxOA==