// Copyright 2019 Robin Krahl <robin.krahl@ireas.org>
// SPDX-License-Identifier: GPL-3.0-or-later

use usb_device::bus::{UsbBus, UsbBusAllocator};
use usb_device::device::{UsbDevice, UsbDeviceBuilder, UsbVidPid};

use crate::hid::{HidDevice, Protocol, Subclass};

const VID_CLAY_LOGIC: u16 = 0x20a0;
const PID_NITROKEY_PRO: u16 = 0x4108;

const REPORT_DESCRIPTOR: &[u8] = &[
    0x05, 0x01, 0x09, 0x06, 0xA1, 0x01, 0x05, 0x07, 0x19, 0xE0, 0x29, 0xE7, 0x15, 0x00, 0x25, 0x01,
    0x75, 0x01, 0x95, 0x08, 0x81, 0x02, 0x95, 0x01, 0x75, 0x08, 0x81, 0x03, 0x95, 0x05, 0x75, 0x01,
    0x05, 0x08, 0x19, 0x01, 0x29, 0x05, 0x91, 0x02, 0x95, 0x01, 0x75, 0x03, 0x91, 0x03, 0x95, 0x06,
    0x75, 0x08, 0x15, 0x00, 0x25, 0x65, 0x05, 0x07, 0x19, 0x00, 0x29, 0x65, 0x81, 0x00, 0x09, 0x03,
    0x75, 0x08, 0x95, 0x40, 0xB1, 0x02, 0xC0,
];

pub struct Nitrokey {}

impl Nitrokey {
    pub fn new() -> Self {
        Nitrokey {}
    }
}

impl HidDevice for Nitrokey {
    fn subclass(&self) -> Subclass {
        Subclass::BootInterface
    }

    fn protocol(&self) -> Protocol {
        Protocol::Keyboard
    }

    fn report_descriptor(&self) -> &[u8] {
        REPORT_DESCRIPTOR
    }
}

pub fn create_usb_device<B: UsbBus>(alloc: &UsbBusAllocator<B>) -> UsbDevice<'_, B> {
    UsbDeviceBuilder::new(alloc, UsbVidPid(VID_CLAY_LOGIC, PID_NITROKEY_PRO))
        .manufacturer("Nitrokey/ntw")
        .product("Nitrokey Pro/ntw")
        .serial_number("?")
        .build()
}