<?php

namespace Ulmus\Repository;

use Ulmus\{Repository, Query, Ulmus, Common};

class MssqlRepository extends Repository {
/*
    protected function finalizeQuery() : void
    {
        if ( null !== $offset = $this->queryBuilder->getFragment(Query\Offset::class) ) {
            if ( null === $limit = $this->queryBuilder->getFragment(Query\Limit::class) ) {
                throw new \Exception("Your offset query fragment is missing a LIMIT value.");
            }

            # an order by is mandatory for mssql offset/limit
            if ( null === $order = $this->queryBuilder->getFragment(Query\OrderBy::class) ) {
                $this->orderBy("(SELECT 0)");
            } 

            $mssqlOffset = new \Ulmus\Query\MsSQL\Offset();

            $mssqlOffset->set($offset->offset, $limit->limit);

            $this->queryBuilder->removeFragment($offset);
            $this->queryBuilder->removeFragment($limit);

            $this->queryBuilder->push($mssqlOffset);
        }
        elseif ( null !== $limit = $this->queryBuilder->getFragment(Query\Limit::class) ) {

            if ( null !== $select = $this->queryBuilder->getFragment(Query\Select::class) ) {
                $select->top = $limit->limit;
            }
            elseif ( null !== $delete = $this->queryBuilder->getFragment(Query\Delete::class) ) {
                $delete->top = $limit->limit;
            }

            $this->queryBuilder->removeFragment($limit);
        }
    }
*/

    protected function finalizeQuery() : void
    {
        if ( null !== $offset = $this->queryBuilder->getFragment(Query\Offset::class) ) {
            # an order by is mandatory for mssql offset/limit
            if ( null === $order = $this->queryBuilder->getFragment(Query\OrderBy::class) ) {
                $this->orderBy("(SELECT 0)");
            }

            if ( empty ($offset->offset ) ) {
                if ( null !== $select = $this->queryBuilder->getFragment(Query\Select::class) ) {
                    $select->top = $offset->limit;
                }
                elseif ( null !== $delete = $this->queryBuilder->getFragment(Query\Delete::class) ) {
                    $delete->top = $offset->limit;
                }
                $this->queryBuilder->removeFragment($offset);
            }
            elseif ( empty($offset->limit) ) {
                throw new \Exception("Your offset query fragment is missing a LIMIT value.");
            }
        }

        if ( null !== $limit = $this->queryBuilder->getFragment(Query\Limit::class) ) {
            $this->queryBuilder->removeFragment($limit);
        }
    }

    protected function serverRequestCountRepository() : Repository
    {
        return new static($this->entityClass, $this->alias, $this->adapter);
    }
}