<?php
namespace Incoviba\Service;

use InvalidArgumentException;
use Psr\Http\Message\UploadedFileInterface;
use Incoviba\Common\Ideal;
use Incoviba\Exception\ServiceAction;
use Incoviba\Service\FileUpload\FileUploadInterface;

class FileUpload extends Ideal\Service implements FileUploadInterface
{
    protected array $uploads = [];
    public function register(FileUploadInterface $fileUpload, string $filetype = 'default'): self
    {
        $this->uploads [$filetype]= $fileUpload;
        return $this;
    }
    /**
     * @param UploadedFileInterface $uploadedFile
     * @return array
     * @throws ServiceAction\Read
     */
    public function getData(UploadedFileInterface $uploadedFile): array
    {
        try {
            $type = $this->getFileType($uploadedFile);
        } catch (InvalidArgumentException $exception) {
            throw new ServiceAction\Read(__CLASS__, $exception);
        }

        $uploader = $this->getUploader($type);
        return $uploader->getData($uploadedFile);
    }

    /**
     * @param UploadedFileInterface $uploadedFile
     * @return string|null
     */
    protected function getFileType(UploadedFileInterface $uploadedFile): ?string
    {
        $fileType = $uploadedFile->getClientMediaType();
        $typesMap = [
            'text/csv' => 'csv',
            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'xlsx',
            'application/vnd.ms-excel' => 'xls',
        ];
        if (!array_key_exists($fileType, $typesMap)) {
            throw new InvalidArgumentException("File type {$fileType} not supported.");
        }
        return $typesMap[$fileType];
    }
    protected function getUploader(string $type): FileUploadInterface
    {
        if (!array_key_exists($type, $this->uploads)) {
            return $this->uploads['default'];
        }
        return $this->uploads[$type];
    }
}