import portal.base


def handle_upload(request, upload_handler):
    files = request.files
    if len(files) > upload_handler.MAX_FILES_PER_UPLOAD:
        return 'Naložite lahko do {} datotek hkrati.'.format(upload_handler.MAX_FILES_PER_UPLOAD), 400
    elif len(files) < 1:
        return 'Priložena ni bila nobena datoteka.', 400

    err = portal.base.check_suffixes(files)
    if err:
        return err, 400

    err = check_form(request.form)
    if err:
        return err, 400

    # Parse request.
    upload_metadata = upload_handler.extract_upload_metadata(corpus_name, request)

    logging.info('Upload from user "{}" with upload id "{}" supplied form data: {}'.format(
        request.user,
        upload_metadata['upload_id'],
        str(upload_metadata['form_data']
    )))

    # Store uploaded files to disk.
    upload_handler.store_datafiles(files, upload_metadata)

    # Store metadata to database.
    upload_handler.store_metadata_solar(upload_metadata)

    # Send confirmation mail along with the contract to the submitted email address.
    upload_handler.send_confirm_mail(upload_metadata)

    return 'Uspešno ste oddali datotek(e). Št. datotek: {}'.format(len(files))


def check_form(form):
    pass