<?php

namespace Ulmus\Migration;

use Ulmus\Adapter\AdapterInterface;
use Ulmus\Adapter\SqlFieldMapper;
use Ulmus\ConnectionAdapter;
use Ulmus\Entity\Mysql\Table;
use Ulmus\Repository;

trait SqlMigrationTrait
{
    protected array $QUERY_REPLACE = [
        'change' => "alter",
    ];

    public function schemaTable(ConnectionAdapter $adapter, $databaseName, string $tableName) : null|object
    {
        return \Ulmus\Entity\InformationSchema\Table::repository(Repository::DEFAULT_ALIAS, $adapter)
            ->select(\Ulmus\Common\Sql::raw('this.*'))
            ->where($this->escapeIdentifier('table_schema', AdapterInterface::IDENTIFIER_FIELD), $databaseName)
            ->or($this->escapeIdentifier('table_catalog', AdapterInterface::IDENTIFIER_FIELD), $databaseName)
            ->loadOneFromField($this->escapeIdentifier('table_name', AdapterInterface::IDENTIFIER_FIELD), $tableName);
    }

    public function mapFieldType(FieldDefinition $field, bool $typeOnly = false) : string
    {
        $mapper = new SqlFieldMapper($field);

        return $typeOnly ? $mapper->type : $mapper->render();
    }

    public function generateAlterColumn(FieldDefinition $definition, array $field) : string|\Stringable
    {
        return implode(" ", array_filter([
            strtoupper($field['action']),
            $this->escapeIdentifier($definition->getSqlName(), AdapterInterface::IDENTIFIER_FIELD),
            $definition->getSqlType(),
            $definition->getSqlParams(),
        ]));
    }

    public function splitAlterQuery() : bool
    {
        return false;
    }

    public function supportAlterColumnAction(string $action)
    {
        return in_array(strtolower($action), [ 'add', 'change' ]);
    }
}