<?php

namespace rednaoeasycalculationforms\ajax\AjaxSanitizer;

abstract class ArrayAjaxSanitizerBase extends AjaxSanitizerBase
{
    protected $ConvertScalarToArray = false;
    public function SetConvertScalarToArray() {
        $this->ConvertScalarToArray = true;
        return $this;
    }

    protected abstract function SanitizeItem($item);

    public function Sanitize($data)
    {
        if($data == null)
            return null;

        if(!is_array($data))
        {
            if(!$this->ConvertScalarToArray)
                return null;

            $data = [$data];
        }

        $arrayToReturn = [];
        foreach ($data as $currentItem)
        {
            $item = $this->SanitizeItem($currentItem);
            if($item === null)
                return null;

            $arrayToReturn[] = $item;
        }

        return $arrayToReturn;

    }

}