// Steering Wheel Remote
//
// Douglas Thrift
//
// $Id$

#include <cassert>
#include <iostream>
#include <set>
#include <sstream>
#include <string>

#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <err.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <usbhid.h>

#include <foreach.hpp>
#include <posix.hpp>

inline std::ostream &operator <<(std::ostream &output, uint8_t number)
{
	return output << unsigned(number);
}

std::set<std::string> AirClicks()
{
	std::set<std::string> airclicks;

	_forall (unsigned, number, 0, 10)
	{
		std::ostringstream device_;

		device_ << "/dev/usb" << number;

		const std::string &device(device_.str());

		try
		{
			int usb(Posix::CheckError(::open(device.c_str(), O_RDONLY)));

			_forall (uint8_t, address, 1, USB_MAX_DEVICES)
			{
				usb_device_info info;

				info.udi_addr = address;

				try
				{
					Posix::CheckError(::ioctl(usb, USB_DEVICEINFO, &info));
				}
				catch (const Posix::Error &error)
				{
					if (error.GetCode() != ENXIO)
						::warn("%s: address %u", device.c_str(), address);

					continue;
				}

				std::cout << info.udi_product << std::endl;
			}

			Posix::CheckError(::close(usb));
		}
		catch (const Posix::Error &error)
		{
			switch (error.GetCode())
			{
			case ENOENT:
			case ENXIO:
				continue;
			default:
				::warn("%s", device.c_str());
			}
		}
	}

	return airclicks;
}

int main(int argc, char *argv[])
{
	std::set<std::string> airclicks(AirClicks());

	return 0;
}