auto SC3000Interface::information() -> Information {
  Information information;
  information.manufacturer = "Sega";
  information.name         = "SC-3000";
  information.extension    = "sc3000";
  return information;
}

auto SC3000Interface::display() -> Display {
  Display display;
  display.type = Display::Type::CRT;
  display.colors = 1 << 4;
  display.width = 256;
  display.height = 192;
  display.internalWidth = 256;
  display.internalHeight = 192;
  display.aspectCorrection = 1.0;
  return display;
}

auto SC3000Interface::color(uint32 color) -> uint64 {
  switch(color.bits(0,3)) {
  case  0: return 0x0000'0000'0000ull;  //transparent
  case  1: return 0x0000'0000'0000ull;  //black
  case  2: return 0x2121'c8c8'4242ull;  //medium green
  case  3: return 0x5e5e'dcdc'7878ull;  //light green
  case  4: return 0x5454'5555'ededull;  //dark blue
  case  5: return 0x7d7d'7676'fcfcull;  //light blue
  case  6: return 0xd4d4'5252'4d4dull;  //dark red
  case  7: return 0x4242'ebeb'f5f5ull;  //cyan
  case  8: return 0xfcfc'5555'5454ull;  //medium red
  case  9: return 0xffff'7979'7878ull;  //light red
  case 10: return 0xd4d4'c1c1'5454ull;  //dark yellow
  case 11: return 0xe6e6'cece'8080ull;  //light yellow
  case 12: return 0x2121'b0b0'3b3bull;  //dark green
  case 13: return 0xc9c9'5b5b'babaull;  //magenta
  case 14: return 0xcccc'cccc'ccccull;  //gray
  case 15: return 0xffff'ffff'ffffull;  //white
  }
  unreachable;
}

auto SC3000Interface::ports() -> vector<Port> { return {
  {ID::Port::Controller1, "Controller Port 1"},
  {ID::Port::Controller2, "Controller Port 2"},
  {ID::Port::Hardware,    "Hardware"         }};
}

auto SC3000Interface::devices(uint port) -> vector<Device> {
  if(port == ID::Port::Controller1) return {
    {ID::Device::None,    "None"   },
    {ID::Device::Gamepad, "Gamepad"}
  };

  if(port == ID::Port::Controller2) return {
    {ID::Device::None,    "None"   },
    {ID::Device::Gamepad, "Gamepad"}
  };

  if(port == ID::Port::Hardware) return {
    {ID::Device::SC3000Controls, "Controls"}
  };

  return {};
}

auto SC3000Interface::inputs(uint device) -> vector<Input> {
  using Type = Input::Type;

  if(device == ID::Device::None) return {
  };

  if(device == ID::Device::Gamepad) return {
    {Type::Hat,    "Up"   },
    {Type::Hat,    "Down" },
    {Type::Hat,    "Left" },
    {Type::Hat,    "Right"},
    {Type::Button, "1"    },
    {Type::Button, "2"    }
  };

  if(device == ID::Device::SC3000Controls) return {
    {Type::Control, "Pause"}
  };

  return {};
}

auto SC3000Interface::load() -> bool {
  return system.load(this, System::Model::SC3000);
}

auto SC3000Interface::connected(uint port) -> uint {
  if(port == ID::Port::Controller1) return settings.controllerPort1;
  if(port == ID::Port::Controller2) return settings.controllerPort2;
  if(port == ID::Port::Hardware) return ID::Device::SC3000Controls;
  return 0;
}

auto SC3000Interface::connect(uint port, uint device) -> void {
  if(port == ID::Port::Controller1) controllerPort1.connect(settings.controllerPort1 = device);
  if(port == ID::Port::Controller2) controllerPort2.connect(settings.controllerPort2 = device);
}