from evdev import InputDevice

from barcode_server.barcode import BarcodeEvent


def input_device_to_dict(input_device: InputDevice) -> dict:
    """
    Converts an input device to a a dictionary with human readable values
    :param input_device: the device to convert
    :return: dictionary
    """
    return {
        "name": input_device.name,
        "path": input_device.path,
        "vendorId": f"{input_device.info.vendor: 04x}",
        "productId": f"{input_device.info.product: 04x}",
    }


def barcode_event_to_json(server_id: str, event: BarcodeEvent) -> bytes:
    """
    Converts a barcode event to json
    :param server_id: server instance id
    :param event: the event to convert
    :return: json representation
    """
    import orjson

    event = {
        "id": event.id,
        "serverId": server_id,
        "date": event.date.isoformat(),
        "device": input_device_to_dict(event.input_device),
        "barcode": event.barcode
    }

    json = orjson.dumps(event)
    return json