<?php

namespace App\Controllers;

use CodeIgniter\HTTP\ResponseInterface;

class FileUpload extends BaseController
{
    private string $storagename = '';

    public function initController(\CodeIgniter\HTTP\RequestInterface $request, \CodeIgniter\HTTP\ResponseInterface $response, \Psr\Log\LoggerInterface $logger)
    {
        parent::initController($request, $response, $logger);

        if (!defined('AUTHENTICATED') || AUTHENTICATED === false) {
            die('NO ACCESS');
        }
    }

    public function upload(int $foreignID): ResponseInterface
    {
        $validationRule = [
            'userfile' => [
                'label' => 'File',
                'rules' => 'uploaded[userfile]'
            ]
        ];

        if (!$this->validate($validationRule)) {
            return $this->json(['error' => $this->validator->getErrors()]);
        }

        $file = $this->request->getFile('userfile');

        if (!$file->isValid()) {
            return $this->json(['error' => $file->getErrorString()]);
        }

        // Move to temp directory first
        $tempPath = ROOTPATH . 'documents/temp';
        $originalName = $file->getName();
        $file->move($tempPath, $originalName);

        $this->setStoragename();

        $uploadData = [
            'file_name' => $originalName,
            'full_path' => $tempPath . '/' . $originalName
        ];

        $this->persistDocument($uploadData, $foreignID);
        $this->renameDocument($uploadData['full_path']);

        return $this->json(['success' => true, 'storagename' => $this->storagename]);
    }

    private function setStoragename(): void
    {
        $this->storagename = sha1(bin2hex(random_bytes(16)));
    }

    private function persistDocument(array $data, int $foreignID): void
    {
        $file = [
            'storagename'  => $this->storagename,
            'originalname' => $data['file_name'],
            'user_id'      => USERID,
            'uploaddate'   => date('Y-m-d H:i:s'),
            'foreign_id'   => $foreignID
        ];

        \Document::create($file);
    }

    private function renameDocument(string $original): void
    {
        rename($original, ROOTPATH . 'documents/' . $this->storagename);
    }
}