<?php

namespace rednaoeasycalculationforms\ajax;

use Exception;
use rednaoeasycalculationforms\core\Managers\FileManager\FileManager;
use rednaoeasycalculationforms\Utilities\Sanitizer;

class EntryUtilsAjax extends AjaxBase
{

    function GetDefaultNonce()
    {
        return 'Submission';
    }

    protected function RegisterHooks()
    {
        $this->RegisterPublic('getpublicfileupload', 'GetFileUpload', false);
        $this->RegisterPublic('getpublicsignature', 'GetSignature', false);

    }

    public function GetSignature() {
        $ref = $this->GetOptional('ref', '');
        $view = $this->GetOptional('View', 'download');

        $fileParts = \explode('__', $ref);
        if(count($fileParts) != 2)
            $this->SendErrorMessage('Invalid reference');

        $fileManager = new FileManager($this->Loader);

        $fileData = null;
        try{
            $fileData = $fileManager->GetFileData($fileParts[0], $fileParts[1]);
        }catch (Exception $e)
        {

        }

        if($fileData == null)
            $this->SendErrorMessage('Invalid reference');

        if(!\file_exists($fileData->Path))
        {
            $this->SendErrorMessage('File does not exists');
        }

        $file = array(
            'Mime' => $fileData->Mime,
            'FileName' => $fileData->Name,
        );

        $file['Content'] = \base64_encode(\file_get_contents($fileData->Path));
        $this->SendSuccessMessage($file);
        exit;
    }

    public function GetFileUpload() {
        if(!isset($_GET['ref']))
            $this->SendErrorMessage('Invalid operation');

        $ref = Sanitizer::SanitizeWithRegex($_GET['ref'], '/[a-z0-9]+__[a-z0-9]+/i');

        $fileParts = \explode('__', $ref);
        if(count($fileParts) != 2)
            $this->SendErrorMessage('Invalid reference');

        $fileManager = new FileManager($this->Loader);

        $fileData = null;
        try{
            $fileData = $fileManager->GetFileData($fileParts[0], $fileParts[1]);
        }catch (Exception $e)
        {

        }

        if($fileData == null)
            $this->SendErrorMessage('Invalid reference');

        if(!\file_exists($fileData->Path))
        {
            $this->SendErrorMessage('File does not exists');
        }

        header('Expires: 0');
        header('Cache-Control: must-revalidate');
        header('Pragma: public');
        header('Content-type: ' . $fileData->Mime);
        header('Content-disposition: inline; filename=' . $fileData->Name);

        //Define file size
        header('Content-Length: ' . filesize($fileData->Path));
        readfile($fileData->Path);
        exit;

    }
}