<?php
/**
 * Created by Pensare Software.
 * User: Theo Weijmer
 * Date: 10/01/2018
 * Time: 19:03
 */

class FileUpload extends MY_Controller {

    private $storagename;

    public function __construct()
    {
        parent::__construct();

        if ( AUTHENTICATED == FALSE ) die( 'NO ACCESS' );

        $models = [];
        $libraries = [];

        $this->load->model( $models );
        $this->load->library( $libraries );
    }

    public function upload( $foreignID )
    {
        $config['upload_path'] = MYROOTPATH . 'documents/temp';
        $config['allowed_types'] = '*';
        $config['remove_spaces'] = FALSE;

        $this->load->library( 'upload', $config );

        if ( ! $this->upload->do_upload( 'userfile' ) )
        {
            $error = ['error' => $this->upload->display_errors()];

            $this->json( $error );
        }
        else
        {
            $data = ['upload_data' => $this->upload->data()];

            $this->setStoragename();

            $this->persistDocument( $data['upload_data'], $foreignID );

            $this->renameDocument( $data['upload_data']['full_path'] );
        }
    }

    private function setStoragename()
    {
        $this->load->helper( 'string' );
        $this->storagename = sha1( random_string( 'alnum', 16 ) );
    }

    private function persistDocument( $data, $foreignID )
    {
        $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( $original )
    {
        rename( $original, MYROOTPATH . 'documents/' . $this->storagename );
    }
}