/*
 *  OpenSCAD (www.openscad.org)
 *  Copyright (C) 2009-2011 Clifford Wolf <clifford@clifford.at> and
 *                          Marius Kintel <marius@kintel.net>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  As a special exception, you have permission to link this program
 *  with the CGAL library and distribute executables, as long as you
 *  follow the requirements of the GNU GPL in regard to all of the
 *  software in the executable aside from CGAL.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#pragma once

#include <cstddef>
#include <string>
#include <hidapi.h>

#include "gui/input/InputDriver.h"

class HidApiInputDriver : public InputDriver
{
  Q_OBJECT

  std::string name;
  unsigned int buttons{0};
  hid_device *hid_dev{nullptr};
  const struct device_id *dev {nullptr};

public:
  HidApiInputDriver();
  void run() override;
  bool open() override;
  void close() override;

  const std::string& get_name() const override;
  std::string get_info() const override;

  void hidapi_decode_axis(const unsigned char *buf, unsigned int len);
  void hidapi_decode_button(const unsigned char *buf, unsigned int len);

  size_t getButtonCount() const override {
    return InputDriver::max_buttons;
  }
  size_t getAxisCount() const override {
    return InputDriver::max_axis;
  }

private:
  std::pair<hid_device *, const struct device_id *> enumerate() const;
  void hidapi_input(hid_device *hid_dev);
};

struct device_id {
  int vendor_id;
  int product_id;
  void (HidApiInputDriver::*axis_decoder)(const unsigned char *buf, unsigned int len);
  void (HidApiInputDriver::*button_decoder)(const unsigned char *buf, unsigned int len);
  const char *name;
};
