aurora/lib/dolphin/pad/pad.cpp

#include "../../input.hpp"
#include "../../internal.hpp"
#include <dolphin/pad.h>
#include <dolphin/si.h>
#include <SDL3/SDL_mouse.h>

#include <array>
#include <sys/stat.h>

namespace {
constexpr int32_t k_mappingsFileVersion = 3;

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsStandard{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsXBox360{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsXBoxOne{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsPS3{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsPS4{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsPS5{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsGamecube{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_MISC3, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_MISC4, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsNSOGamecube{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsProCon{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsJoyConRight{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsJoyConLeft{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADButtonMapping, PAD_BUTTON_COUNT> g_defaultButtonsJoyPair{{
    {SDL_GAMEPAD_BUTTON_SOUTH, PAD_BUTTON_A},
    {SDL_GAMEPAD_BUTTON_EAST, PAD_BUTTON_B},
    {SDL_GAMEPAD_BUTTON_WEST, PAD_BUTTON_X},
    {SDL_GAMEPAD_BUTTON_NORTH, PAD_BUTTON_Y},
    {SDL_GAMEPAD_BUTTON_START, PAD_BUTTON_START},
    {SDL_GAMEPAD_BUTTON_BACK, PAD_TRIGGER_Z},
    {SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, PAD_TRIGGER_L},
    {SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, PAD_TRIGGER_R},
    {SDL_GAMEPAD_BUTTON_DPAD_UP, PAD_BUTTON_UP},
    {SDL_GAMEPAD_BUTTON_DPAD_DOWN, PAD_BUTTON_DOWN},
    {SDL_GAMEPAD_BUTTON_DPAD_LEFT, PAD_BUTTON_LEFT},
    {SDL_GAMEPAD_BUTTON_DPAD_RIGHT, PAD_BUTTON_RIGHT},
}};

std::array<PADKeyButtonBinding, PAD_BUTTON_COUNT> g_defaultKeys{{
    {PAD_KEY_INVALID, PAD_BUTTON_A},
    {PAD_KEY_INVALID, PAD_BUTTON_B},
    {PAD_KEY_INVALID, PAD_BUTTON_X},
    {PAD_KEY_INVALID, PAD_BUTTON_Y},
    {PAD_KEY_INVALID, PAD_BUTTON_START},
    {PAD_KEY_INVALID, PAD_TRIGGER_Z},
    {PAD_KEY_INVALID, PAD_TRIGGER_L},
    {PAD_KEY_INVALID, PAD_TRIGGER_R},
    {PAD_KEY_INVALID, PAD_BUTTON_UP},
    {PAD_KEY_INVALID, PAD_BUTTON_DOWN},
    {PAD_KEY_INVALID, PAD_BUTTON_LEFT},
    {PAD_KEY_INVALID, PAD_BUTTON_RIGHT},
}};

std::array<PADKeyAxisBinding, PAD_AXIS_COUNT> g_defaultKeyAxis{{
    {PAD_KEY_INVALID, PAD_AXIS_LEFT_X_POS, 0},
    {PAD_KEY_INVALID, PAD_AXIS_LEFT_X_NEG, 0},
    {PAD_KEY_INVALID, PAD_AXIS_LEFT_Y_POS, 0},
    {PAD_KEY_INVALID, PAD_AXIS_LEFT_Y_NEG, 0},
    {PAD_KEY_INVALID, PAD_AXIS_RIGHT_X_POS, 0},
    {PAD_KEY_INVALID, PAD_AXIS_RIGHT_X_NEG, 0},
    {PAD_KEY_INVALID, PAD_AXIS_RIGHT_Y_POS, 0},
    {PAD_KEY_INVALID, PAD_AXIS_RIGHT_Y_NEG, 0},
    {PAD_KEY_INVALID, PAD_AXIS_TRIGGER_L, 0},
    {PAD_KEY_INVALID, PAD_AXIS_TRIGGER_R, 0},
}};

std::array<PADAxisMapping, PAD_AXIS_COUNT> g_defaultAxes{{
    {{SDL_GAMEPAD_AXIS_LEFTX, AXIS_SIGN_POSITIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_LEFT_X_POS},
    {{SDL_GAMEPAD_AXIS_LEFTX, AXIS_SIGN_NEGATIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_LEFT_X_NEG},
    // SDL's gamepad y-axis is inverted from GC's
    {{SDL_GAMEPAD_AXIS_LEFTY, AXIS_SIGN_NEGATIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_LEFT_Y_POS},
    {{SDL_GAMEPAD_AXIS_LEFTY, AXIS_SIGN_POSITIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_LEFT_Y_NEG},
    {{SDL_GAMEPAD_AXIS_RIGHTX, AXIS_SIGN_POSITIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_RIGHT_X_POS},
    {{SDL_GAMEPAD_AXIS_RIGHTX, AXIS_SIGN_NEGATIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_RIGHT_X_NEG},
    // see above
    {{SDL_GAMEPAD_AXIS_RIGHTY, AXIS_SIGN_NEGATIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_RIGHT_Y_POS},
    {{SDL_GAMEPAD_AXIS_RIGHTY, AXIS_SIGN_POSITIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_RIGHT_Y_NEG},
    {{SDL_GAMEPAD_AXIS_LEFT_TRIGGER, AXIS_SIGN_POSITIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_TRIGGER_L},
    {{SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, AXIS_SIGN_POSITIVE}, SDL_GAMEPAD_BUTTON_INVALID, PAD_AXIS_TRIGGER_R},
}};

template <typename T, size_t N>
constexpr const std::array<T, N>& toStdArray(const T (&array)[N]) {
  static_assert(sizeof(array) == sizeof(std::array<T, N>));
  return reinterpret_cast<const std::array<T, N>&>(array);
}

struct PADKeyboardState {
  std::array<PADKeyButtonBinding, PAD_BUTTON_COUNT> m_buttonMapping{};
  std::array<PADKeyAxisBinding, PAD_AXIS_COUNT> m_axisMapping{};
  bool m_mappingsSet = false;
};

std::array<PADKeyboardState, PAD_MAX_CONTROLLERS> g_keyboardBindings;

struct PADCLampRegion {
  uint8_t minTrigger;
  uint8_t maxTrigger;
  int8_t minStick;
  int8_t maxStick;
  int8_t xyStick;
  int8_t minSubstick;
  int8_t maxSubstick;
  int8_t xySubstick;
  int8_t radStick;
  int8_t radSubstick;
};

constexpr PADCLampRegion ClampRegion{
    // Triggers
    30,
    180,

    // Left stick
    15,
    72,
    40,

    // Right stick
    15,
    59,
    31,

    // Stick radii
    56,
    44,
};

bool g_initialized;
bool g_keyboardBindingsLoaded = false;
bool g_blockPAD = false;
bool g_suppressHeldOnRead = false;
std::array<PADButton, PAD_CHANMAX> g_suppressedButtons{};
std::array<bool, PAD_CHANMAX> g_suppressLeftTrigger{};
std::array<bool, PAD_CHANMAX> g_suppressRightTrigger{};

bool is_mouse_scancode(s32 scancode) { return scancode < PAD_KEY_INVALID; }
bool is_mouse_button_pressed(s32 scancode) {
  const int32_t buttonNum = -(scancode + 1);
  if (buttonNum < 1 || buttonNum > 5) {
    return false;
  }
  float x, y;
  const auto buttons = SDL_GetMouseState(&x, &y);
  return (buttons & (1u << (buttonNum - 1))) != 0u;
}
} // namespace

void PADSetSpec(u32 spec) {}

static void load_keyboard_bindings();
static void save_keyboard_bindings();

BOOL PADInit() {
  if (g_initialized) {
    return true;
  }
  g_initialized = true;

  std::for_each(g_keyboardBindings.begin(), g_keyboardBindings.end(), [](auto& state) {
    state.m_buttonMapping = g_defaultKeys;
    state.m_axisMapping = g_defaultKeyAxis;
  });

  return true;
}

BOOL PADRecalibrate(u32 mask) { return true; }

BOOL PADReset(u32 mask) { return true; }

void PADSetAnalogMode(u32 mode) {}

aurora::input::GameController* __PADGetControllerForIndex(uint32_t idx) {
  if (idx >= aurora::input::g_GameControllers.size()) {
    return nullptr;
  }

  uint32_t tmp = 0;
  auto iter = aurora::input::g_GameControllers.begin();
  while (tmp < idx) {
    ++iter;
    ++tmp;
  }
  if (iter == aurora::input::g_GameControllers.end()) {
    return nullptr;
  }

  return &iter->second;
}

uint32_t PADCount() { return aurora::input::g_GameControllers.size(); }

const char* PADGetNameForControllerIndex(uint32_t idx) {
  const auto* ctrl = __PADGetControllerForIndex(idx);
  if (ctrl == nullptr) {
    return nullptr;
  }

  return SDL_GetGamepadName(ctrl->m_controller);
}

void PADSetPortForIndex(uint32_t idx, int32_t port) {
  auto* ctrl = __PADGetControllerForIndex(idx);
  if (ctrl == nullptr) {
    return;
  }

  const int32_t oldPort = SDL_GetGamepadPlayerIndex(ctrl->m_controller);
  auto* dest = aurora::input::get_controller_for_player(port);
  if (dest != nullptr && dest != ctrl) {
    SDL_SetGamepadPlayerIndex(dest->m_controller, -1);
  }
  if (oldPort >= 0 && oldPort != port) {
    aurora::input::persist_controller_for_player(oldPort, nullptr);
  }
  SDL_SetGamepadPlayerIndex(ctrl->m_controller, port);
  aurora::input::persist_controller_for_player(port, ctrl);
}

int32_t PADGetIndexForPort(uint32_t port) {
  auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return -1;
  }
  int32_t index = 0;
  for (auto iter = aurora::input::g_GameControllers.begin(); iter != aurora::input::g_GameControllers.end();
       ++iter, ++index) {
    if (&iter->second == ctrl) {
      break;
    }
  }

  return index;
}

void PADClearPort(uint32_t port) {
  aurora::input::persist_controller_for_player(port, nullptr);
  auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return;
  }
  SDL_SetGamepadPlayerIndex(ctrl->m_controller, -1);
}

void __PADSetDefaultMapping(aurora::input::GameController* controller) {
  switch (SDL_GetGamepadType(controller->m_controller)) {
  case SDL_GAMEPAD_TYPE_XBOX360:
    controller->m_buttonMapping = g_defaultButtonsXBox360;
  case SDL_GAMEPAD_TYPE_XBOXONE:
    controller->m_buttonMapping = g_defaultButtonsXBoxOne;
    break;
  case SDL_GAMEPAD_TYPE_STANDARD:
    controller->m_buttonMapping = g_defaultButtonsStandard;
    break;
  case SDL_GAMEPAD_TYPE_PS3:
    controller->m_buttonMapping = g_defaultButtonsPS3;
    break;
  case SDL_GAMEPAD_TYPE_PS4:
    controller->m_buttonMapping = g_defaultButtonsPS4;
    break;
  case SDL_GAMEPAD_TYPE_PS5:
    controller->m_buttonMapping = g_defaultButtonsPS5;
    break;
  case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO:
    if (controller->m_pid == 0x2073) {
      controller->m_buttonMapping = g_defaultButtonsNSOGamecube;
    } else {
      controller->m_buttonMapping = g_defaultButtonsProCon;
    }
    break;
  case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_RIGHT:
    controller->m_buttonMapping = g_defaultButtonsJoyConRight;
    break;
  case SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_JOYCON_LEFT:
    controller->m_buttonMapping = g_defaultButtonsJoyConLeft;
    break;
  case SDL_GAMEPAD_TYPE_GAMECUBE:
    controller->m_buttonMapping = g_defaultButtonsGamecube;
    break;
  default:
    controller->m_buttonMapping = g_defaultButtonsStandard;
    break;
  }
}

void __PADLoadMapping(aurora::input::GameController* controller) {
  int32_t playerIndex = SDL_GetGamepadPlayerIndex(controller->m_controller);
  if (playerIndex == -1) {
    return;
  }

  std::string basePath{aurora::g_config.configPath};
  if (!controller->m_mappingLoaded) {
    __PADSetDefaultMapping(controller);
    controller->m_axisMapping = g_defaultAxes;
  }

  controller->m_mappingLoaded = true;

  auto path = fmt::format("{}/{}_{:04X}_{:04X}.controller", basePath, PADGetName(playerIndex), controller->m_vid,
                          controller->m_pid);
  SDL_IOStream* file = SDL_IOFromFile(path.c_str(), "rb");
  if (file == nullptr) {
    return;
  }

  uint32_t magic = 0;
  SDL_ReadU32LE(file, &magic);
  if (magic != SBIG('CTRL')) {
    aurora::input::Log.warn("Invalid controller mapping magic!");
    return;
  }

  uint32_t version = 0;
  SDL_ReadU32LE(file, &version);
  if (version != k_mappingsFileVersion) {
    aurora::input::Log.warn("Invalid controller mapping version! (Expected {0}, found {1})", k_mappingsFileVersion,
                            version);
    return;
  }

  bool isGameCube = false;
  SDL_ReadIO(file, &isGameCube, sizeof(bool));
  SDL_SeekIO(file, (SDL_TellIO(file) + 31) & ~31, SDL_IO_SEEK_SET);
  uint32_t dataStart = SDL_TellIO(file);
  if (isGameCube) {
    uint32_t dzSecLen = sizeof(PADDeadZones);
    uint32_t btnSecLen = sizeof(PADButtonMapping) * PAD_BUTTON_COUNT;
    uint32_t axisSecLen = sizeof(PADAxisMapping) * PAD_AXIS_COUNT;
    SDL_SeekIO(file, dataStart + ((dzSecLen + btnSecLen + axisSecLen) * playerIndex), SDL_IO_SEEK_SET);
  }

  SDL_ReadIO(file, &controller->m_deadZones, sizeof(PADDeadZones));
  SDL_ReadIO(file, &controller->m_buttonMapping, sizeof(PADButtonMapping) * PAD_BUTTON_COUNT);
  SDL_ReadIO(file, &controller->m_axisMapping, sizeof(PADAxisMapping) * PAD_AXIS_COUNT);
  if (!isGameCube) {
    SDL_ReadIO(file, &controller->m_rumbleIntensityLow, sizeof(u16));
    SDL_ReadIO(file, &controller->m_rumbleIntensityHigh, sizeof(u16));
  }
  SDL_CloseIO(file);

  bool axisCorrupt = false;
  for (uint32_t i = 0; i < PAD_AXIS_COUNT; ++i) {
    if (controller->m_axisMapping[i].padAxis != static_cast<PADAxis>(i)) {
      axisCorrupt = true;
      break;
    }
  }
  if (axisCorrupt) {
    aurora::input::Log.warn("__PADLoadMapping port={}: corrupt axis data in file, resetting axes to defaults",
                            playerIndex);
    controller->m_axisMapping = g_defaultAxes;
  }

  bool buttonCorrupt = false;
  for (uint32_t i = 0; i < PAD_BUTTON_COUNT; ++i) {
    if (controller->m_buttonMapping[i].padButton == 0) {
      buttonCorrupt = true;
      break;
    }
  }
  if (buttonCorrupt) {
    aurora::input::Log.warn("__PADLoadMapping port={}: corrupt button data in file, resetting buttons to defaults",
                            playerIndex);
    __PADSetDefaultMapping(controller);
  }
}

static void EnsureMappingLoaded(aurora::input::GameController* controller) {
  if (!controller->m_mappingLoaded) {
    __PADLoadMapping(controller);
  }
}

static Sint16 _get_axis_value(aurora::input::GameController* controller, PADAxis axis) {
  auto iter = std::find_if(controller->m_axisMapping.cbegin(), controller->m_axisMapping.cend(),
                           [axis](const auto& pair) { return pair.padAxis == axis; });
  if (iter == controller->m_axisMapping.end()) {
    return 0;
  }

  if (iter->nativeAxis.nativeAxis != -1) {
    auto nativeAxis = iter->nativeAxis;
    // clamp value to avoid overflow when casting to Sint16 if -32768 is negated
    return static_cast<Sint16>(
        std::min(SDL_GetGamepadAxis(controller->m_controller, static_cast<SDL_GamepadAxis>(nativeAxis.nativeAxis)) *
                     nativeAxis.sign,
                 SDL_JOYSTICK_AXIS_MAX));
  } else {
    assert(iter->nativeButton != -1);
    if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(iter->nativeButton))) {
      return SDL_JOYSTICK_AXIS_MAX;
    } else {
      return 0;
    }
  }
}

static void neutralize_status(PADStatus& status) {
  status.button = 0;
  status.stickX = 0;
  status.stickY = 0;
  status.substickX = 0;
  status.substickY = 0;
  status.triggerLeft = 0;
  status.triggerRight = 0;
  status.analogA = 0;
  status.analogB = 0;
}

static void apply_unblock_suppression(PADStatus& status, u32 port, bool captureHeldInput) {
  if (captureHeldInput) {
    g_suppressedButtons[port] |= status.button;
    g_suppressLeftTrigger[port] = g_suppressLeftTrigger[port] || status.triggerLeft > ClampRegion.minTrigger;
    g_suppressRightTrigger[port] = g_suppressRightTrigger[port] || status.triggerRight > ClampRegion.minTrigger;
  }

  g_suppressedButtons[port] &= status.button;
  status.button &= ~g_suppressedButtons[port];

  if (g_suppressLeftTrigger[port]) {
    if (status.triggerLeft <= ClampRegion.minTrigger) {
      g_suppressLeftTrigger[port] = false;
    } else {
      status.triggerLeft = 0;
    }
  }

  if (g_suppressRightTrigger[port]) {
    if (status.triggerRight <= ClampRegion.minTrigger) {
      g_suppressRightTrigger[port] = false;
    } else {
      status.triggerRight = 0;
    }
  }
}

uint32_t PADRead(PADStatus* status) {
  if (!g_keyboardBindingsLoaded) {
    g_keyboardBindingsLoaded = true;
    load_keyboard_bindings();
  }

  int numKeys = 0;
  const bool* kbState = SDL_GetKeyboardState(&numKeys);
  const bool captureHeldInput = g_suppressHeldOnRead && !g_blockPAD;
  g_suppressHeldOnRead = false;

  uint32_t rumbleSupport = 0;
  for (uint32_t i = 0; i < PAD_CHANMAX; ++i) {
    memset(&status[i], 0, sizeof(PADStatus));
    auto controller = aurora::input::get_controller_for_player(i);
    if (controller == nullptr && !g_keyboardBindings[i].m_mappingsSet) {
      status[i].err = PAD_ERR_NO_CONTROLLER;
      g_suppressedButtons[i] = 0;
      g_suppressLeftTrigger[i] = false;
      g_suppressRightTrigger[i] = false;
      continue;
    }

    status[i].err = PAD_ERR_NONE;
    if (g_keyboardBindings[i].m_mappingsSet) {
      std::for_each(g_keyboardBindings[i].m_buttonMapping.begin(), g_keyboardBindings[i].m_buttonMapping.end(),
                    [&kbState, &i, &status](const PADKeyButtonBinding& mapping) {
                      if (mapping.scancode > PAD_KEY_INVALID && kbState[mapping.scancode]) {
                        status[i].button |= mapping.padButton;
                      } else if (is_mouse_scancode(mapping.scancode) && is_mouse_button_pressed(mapping.scancode)) {
                        status[i].button |= mapping.padButton;
                      }
                    });

      int lx = 0, ly = 0, rx = 0, ry = 0, tl = 0, tr = 0;
      for (const auto& binding : g_keyboardBindings[i].m_axisMapping) {
        bool pressed = false;
        if (binding.scancode > PAD_KEY_INVALID) {
          pressed = binding.scancode < numKeys && kbState[binding.scancode];
        } else if (is_mouse_scancode(binding.scancode)) {
          pressed = is_mouse_button_pressed(binding.scancode);
        }
        if (!pressed) {
          continue;
        }
        switch (binding.padAxis) {
        case PAD_AXIS_LEFT_X_POS:
          lx += 127;
          break;
        case PAD_AXIS_LEFT_X_NEG:
          lx -= 127;
          break;
        case PAD_AXIS_LEFT_Y_POS:
          ly += 127;
          break;
        case PAD_AXIS_LEFT_Y_NEG:
          ly -= 127;
          break;
        case PAD_AXIS_RIGHT_X_POS:
          rx += 127;
          break;
        case PAD_AXIS_RIGHT_X_NEG:
          rx -= 127;
          break;
        case PAD_AXIS_RIGHT_Y_POS:
          ry += 127;
          break;
        case PAD_AXIS_RIGHT_Y_NEG:
          ry -= 127;
          break;
        case PAD_AXIS_TRIGGER_L:
          tl += 255;
          break;
        case PAD_AXIS_TRIGGER_R:
          tr += 255;
          break;
        default:
          break;
        }
      }
      status[i].stickX = static_cast<s8>(std::clamp((int)status[i].stickX + lx, -127, 127));
      status[i].stickY = static_cast<s8>(std::clamp((int)status[i].stickY + ly, -127, 127));
      status[i].substickX = static_cast<s8>(std::clamp((int)status[i].substickX + rx, -127, 127));
      status[i].substickY = static_cast<s8>(std::clamp((int)status[i].substickY + ry, -127, 127));
      status[i].triggerLeft = static_cast<u8>(std::min((int)status[i].triggerLeft + tl, 255));
      status[i].triggerRight = static_cast<u8>(std::min((int)status[i].triggerRight + tr, 255));
    }

    if (controller) {
      EnsureMappingLoaded(controller);
      std::for_each(
          controller->m_buttonMapping.begin(), controller->m_buttonMapping.end(),
          [&controller, &i, &status](const auto& mapping) {
            if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(mapping.nativeButton))) {
              status[i].button |= mapping.padButton;
            }
          });

      // TODO: Add serializable mappings for these (probably not necessary)?
      static constexpr std::array<std::pair<SDL_GamepadButton, PADExtButton>, PAD_EXT_BUTTON_COUNT> kExtButtonMappings{{
          {SDL_GAMEPAD_BUTTON_BACK, PAD_BUTTON_BACK},
          {SDL_GAMEPAD_BUTTON_GUIDE, PAD_BUTTON_GUIDE},
          {SDL_GAMEPAD_BUTTON_MISC1, PAD_BUTTON_MISC1},
          {SDL_GAMEPAD_BUTTON_MISC2, PAD_BUTTON_MISC2},
          {SDL_GAMEPAD_BUTTON_MISC3, PAD_BUTTON_MISC3},
          {SDL_GAMEPAD_BUTTON_MISC4, PAD_BUTTON_MISC4},
          {SDL_GAMEPAD_BUTTON_MISC5, PAD_BUTTON_MISC5},
          {SDL_GAMEPAD_BUTTON_MISC6, PAD_BUTTON_MISC6},
          {SDL_GAMEPAD_BUTTON_RIGHT_PADDLE1, PAD_BUTTON_RIGHT_PADDLE1},
          {SDL_GAMEPAD_BUTTON_LEFT_PADDLE1, PAD_BUTTON_LEFT_PADDLE1},
          {SDL_GAMEPAD_BUTTON_RIGHT_PADDLE2, PAD_BUTTON_RIGHT_PADDLE2},
          {SDL_GAMEPAD_BUTTON_LEFT_PADDLE2, PAD_BUTTON_LEFT_PADDLE2},
          {SDL_GAMEPAD_BUTTON_RIGHT_STICK, PAD_BUTTON_RIGHT_STICK},
          {SDL_GAMEPAD_BUTTON_LEFT_STICK, PAD_BUTTON_LEFT_STICK},
          {SDL_GAMEPAD_BUTTON_TOUCHPAD, PAD_BUTTON_TOUCHPAD},
      }};

      for (const auto& mapping : kExtButtonMappings) {
        if (SDL_GetGamepadButton(controller->m_controller, mapping.first)) {
          status[i].extButton |= mapping.second;
        }
      }

      Sint16 xlPos = _get_axis_value(controller, PAD_AXIS_LEFT_X_POS);
      Sint16 xlNeg = _get_axis_value(controller, PAD_AXIS_LEFT_X_NEG);
      Sint16 ylPos = _get_axis_value(controller, PAD_AXIS_LEFT_Y_POS);
      Sint16 ylNeg = _get_axis_value(controller, PAD_AXIS_LEFT_Y_NEG);

      Sint16 xl = (xlPos + -xlNeg) / 2;
      // SDL's gamepad y-axis is inverted from GC's
      Sint16 yl = (-ylPos + ylNeg) / 2;
      if (controller->m_deadZones.useDeadzones) {
        if (std::abs(xl) > controller->m_deadZones.stickDeadZone) {
          xl /= 256;
        } else {
          xl = 0;
        }
        if (std::abs(yl) > controller->m_deadZones.stickDeadZone) {
          yl = (-(yl + 1u)) / 256u;
        } else {
          yl = 0;
        }
      } else {
        xl /= 256;
        yl = (-(yl + 1u)) / 256u;
      }

      status[i].stickX = static_cast<int8_t>(xl);
      status[i].stickY = static_cast<int8_t>(yl);

      Sint16 xrPos = _get_axis_value(controller, PAD_AXIS_RIGHT_X_POS);
      Sint16 xrNeg = _get_axis_value(controller, PAD_AXIS_RIGHT_X_NEG);
      Sint16 yrPos = _get_axis_value(controller, PAD_AXIS_RIGHT_Y_POS);
      Sint16 yrNeg = _get_axis_value(controller, PAD_AXIS_RIGHT_Y_NEG);

      Sint16 xr = (xrPos + -xrNeg) / 2;
      // SDL's gamepad y-axis is inverted from GC's
      Sint16 yr = (-yrPos + yrNeg) / 2;
      if (controller->m_deadZones.useDeadzones) {
        if (std::abs(xr) > controller->m_deadZones.substickDeadZone) {
          xr /= 256;
        } else {
          xr = 0;
        }

        if (std::abs(yr) > controller->m_deadZones.substickDeadZone) {
          yr = (-(yr + 1u)) / 256u;
        } else {
          yr = 0;
        }
      } else {
        xr /= 256;
        yr = (-(yr + 1u)) / 256u;
      }

      status[i].substickX = static_cast<int8_t>(xr);
      status[i].substickY = static_cast<int8_t>(yr);

      Sint16 tl = std::max((Sint16)0, _get_axis_value(controller, PAD_AXIS_TRIGGER_L));
      Sint16 tr = std::max((Sint16)0, _get_axis_value(controller, PAD_AXIS_TRIGGER_R));

      if (/*!controller->m_isGameCube && */ controller->m_deadZones.emulateTriggers) {
        if (tl > controller->m_deadZones.leftTriggerActivationZone) {
          status[i].button |= PAD_TRIGGER_L;
        }
        if (tr > controller->m_deadZones.rightTriggerActivationZone) {
          status[i].button |= PAD_TRIGGER_R;
        }
      }
      tl /= 128;
      tr /= 128;

      status[i].triggerLeft = static_cast<int8_t>(tl);
      status[i].triggerRight = static_cast<int8_t>(tr);

      if (controller->m_hasRumble) {
        rumbleSupport |= PAD_CHAN0_BIT >> i;
      }

      // Update the LED colors when they exist and the controller is read (which should happen once per frame in most
      // games)
      if (controller->m_hasRgbLed && controller->m_isColorDirty) {
        SDL_SetGamepadLED(controller->m_controller, controller->m_ledRed, controller->m_ledGreen,
                          controller->m_ledBlue);
        controller->m_isColorDirty = false;
      }
    }

    if (g_blockPAD) {
      neutralize_status(status[i]);
    } else {
      apply_unblock_suppression(status[i], i, captureHeldInput);
    }
  }
  return rumbleSupport;
}

void PADControlMotor(int32_t chan, uint32_t command) {
  auto controller = aurora::input::get_controller_for_player(chan);
  auto instance = aurora::input::get_instance_for_player(chan);
  if (controller == nullptr) {
    return;
  }

  if (controller->m_isGameCube) {
    if (command == PAD_MOTOR_STOP) {
      aurora::input::controller_rumble(instance, 0, 1, 0);
    } else if (command == PAD_MOTOR_RUMBLE) {
      aurora::input::controller_rumble(instance, 1, 1, 0);
    } else if (command == PAD_MOTOR_STOP_HARD) {
      aurora::input::controller_rumble(instance, 0, 0, 0);
    }
  } else {
    if (command == PAD_MOTOR_STOP) {
      aurora::input::controller_rumble(instance, 0, 0, 1);
    } else if (command == PAD_MOTOR_RUMBLE) {
      aurora::input::controller_rumble(instance, controller->m_rumbleIntensityLow, controller->m_rumbleIntensityHigh,
                                       0);
    } else if (command == PAD_MOTOR_STOP_HARD) {
      aurora::input::controller_rumble(instance, 0, 0, 0);
    }
  }
}

void PADControlAllMotors(const uint32_t* commands) {
  for (uint32_t i = 0; i < PAD_CHANMAX; ++i) {
    PADControlMotor(i, commands[i]);
  }
}

void ClampTrigger(uint8_t* trigger, uint8_t min, uint8_t max) {
  if (*trigger <= min) {
    *trigger = 0;
  } else {
    if (*trigger > max) {
      *trigger = max;
    }
    *trigger -= min;
  }
}

void ClampCircle(int8_t* px, int8_t* py, int8_t radius, int8_t min) {
  int x = *px;
  int y = *py;

  if (-min < x && x < min) {
    x = 0;
  } else if (0 < x) {
    x -= min;
  } else {
    x += min;
  }

  if (-min < y && y < min) {
    y = 0;
  } else if (0 < y) {
    y -= min;
  } else {
    y += min;
  }

  int squared = x * x + y * y;
  if (radius * radius < squared) {
    int32_t length = static_cast<int32_t>(std::sqrt(squared));
    x = (x * radius) / length;
    y = (y * radius) / length;
  }

  *px = static_cast<int8_t>(x);
  *py = static_cast<int8_t>(y);
}

void ClampStick(int8_t* px, int8_t* py, int8_t max, int8_t xy, int8_t min) {
  int32_t x = *px;
  int32_t y = *py;

  int32_t signX = 0;
  if (0 <= x) {
    signX = 1;
  } else {
    signX = -1;
    x = -x;
  }

  int8_t signY = 0;
  if (0 <= y) {
    signY = 1;
  } else {
    signY = -1;
    y = -y;
  }

  if (x <= min) {
    x = 0;
  } else {
    x -= min;
  }
  if (y <= min) {
    y = 0;
  } else {
    y -= min;
  }

  if (x == 0 && y == 0) {
    *px = *py = 0;
    return;
  }

  x = (x * max) / (INT8_MAX - min);
  y = (y * max) / (INT8_MAX - min);

  if (xy * y <= xy * x) {
    int32_t d = xy * x + (max - xy) * y;
    if (xy * max < d) {
      x = (xy * max * x / d);
      y = (xy * max * y / d);
    }
  } else {
    int32_t d = xy * y + (max - xy) * x;
    if (xy * max < d) {
      x = (xy * max * x / d);
      y = (xy * max * y / d);
    }
  }

  *px = (signX * x);
  *py = (signY * y);
}

void PADClamp(PADStatus* status) {
  for (uint32_t i = 0; i < PAD_CHANMAX; ++i) {
    if (status[i].err != PAD_ERR_NONE) {
      continue;
    }

    ClampStick(&status[i].stickX, &status[i].stickY, ClampRegion.maxStick, ClampRegion.xyStick, ClampRegion.minStick);
    ClampStick(&status[i].substickX, &status[i].substickY, ClampRegion.maxSubstick, ClampRegion.xySubstick,
               ClampRegion.minSubstick);
    ClampTrigger(&status[i].triggerLeft, ClampRegion.minTrigger, ClampRegion.maxTrigger);
    ClampTrigger(&status[i].triggerRight, ClampRegion.minTrigger, ClampRegion.maxTrigger);
  }
}

void PADClampCircle(PADStatus* status) {
  for (uint32_t i = 0; i < PAD_CHANMAX; ++i) {
    if (status[i].err != PAD_ERR_NONE) {
      continue;
    }

    ClampCircle(&status[i].stickX, &status[i].stickY, ClampRegion.radStick, ClampRegion.minStick);
    ClampCircle(&status[i].substickX, &status[i].substickY, ClampRegion.radSubstick, ClampRegion.minSubstick);
    ClampTrigger(&status[i].triggerLeft, ClampRegion.minTrigger, ClampRegion.maxTrigger);
    ClampTrigger(&status[i].triggerRight, ClampRegion.minTrigger, ClampRegion.maxTrigger);
  }
}

void PADGetVidPid(uint32_t port, uint32_t* vid, uint32_t* pid) {
  *vid = 0;
  *pid = 0;
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return;
  }

  *vid = controller->m_vid;
  *pid = controller->m_pid;
}

const char* PADGetName(uint32_t port) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return nullptr;
  }

  return SDL_GetGamepadName(controller->m_controller);
}

void PADSetButtonMapping(uint32_t port, PADButtonMapping mapping) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return;
  }

  auto iter = std::find_if(controller->m_buttonMapping.begin(), controller->m_buttonMapping.end(),
                           [mapping](const auto& pair) { return mapping.padButton == pair.padButton; });
  if (iter == controller->m_buttonMapping.end()) {
    return;
  }

  *iter = mapping;
}

void PADSetAllButtonMappings(uint32_t port, PADButtonMapping buttons[PAD_BUTTON_COUNT]) {
  for (uint32_t i = 0; i < PAD_BUTTON_COUNT; ++i) {
    PADSetButtonMapping(port, buttons[i]);
  }
}

PADButtonMapping* PADGetButtonMappings(uint32_t port, uint32_t* buttonCount) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    *buttonCount = 0;
    return nullptr;
  }

  EnsureMappingLoaded(controller);

  *buttonCount = PAD_BUTTON_COUNT;
  return controller->m_buttonMapping.data();
}

void PADSetAxisMapping(u32 port, PADAxisMapping mapping) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return;
  }

  auto iter = std::find_if(controller->m_axisMapping.begin(), controller->m_axisMapping.end(),
                           [mapping](const auto& pair) { return mapping.padAxis == pair.padAxis; });
  if (iter == controller->m_axisMapping.end()) {
    return;
  }

  *iter = mapping;
}

void PADSetAllAxisMappings(u32 port, PADAxisMapping axes[PAD_AXIS_COUNT]) {
  for (uint32_t i = 0; i < PAD_AXIS_COUNT; ++i) {
    PADSetAxisMapping(port, axes[i]);
  }
}

PADAxisMapping* PADGetAxisMappings(uint32_t port, uint32_t* axisCount) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    *axisCount = 0;
    return nullptr;
  }

  EnsureMappingLoaded(controller);
  *axisCount = PAD_AXIS_COUNT;
  return controller->m_axisMapping.data();
}

BOOL PADSetKeyButtonBinding(u32 port, PADKeyButtonBinding binding) {
  if (port >= PAD_MAX_CONTROLLERS) {
    return FALSE;
  }

  auto& state = g_keyboardBindings[port];
  for (auto& b : state.m_buttonMapping) {
    if (b.padButton == binding.padButton) {
      b.scancode = binding.scancode;
      return TRUE;
    }
  }

  return FALSE;
}

BOOL PADSetKeyButtonBindings(u32 port, PADKeyButtonBinding bindings[PAD_BUTTON_COUNT]) {
  for (uint32_t i = 0; i < PAD_BUTTON_COUNT; ++i) {
    if (!PADSetKeyButtonBinding(port, bindings[i])) {
      return FALSE;
    }
  }
  return TRUE;
}

PADKeyButtonBinding* PADGetKeyButtonBindings(u32 port, u32* buttonCount) {
  if (port >= PAD_MAX_CONTROLLERS || !g_keyboardBindings[port].m_mappingsSet) {
    return nullptr;
  }
  auto& state = g_keyboardBindings[port];
  return state.m_buttonMapping.data();
}

BOOL PADSetKeyAxisBinding(u32 port, PADKeyAxisBinding binding) {
  if (port >= PAD_MAX_CONTROLLERS) {
    return FALSE;
  }

  auto& state = g_keyboardBindings[port];
  for (auto& b : state.m_axisMapping) {
    if (b.padAxis == binding.padAxis) {
      b.scancode = binding.scancode;
      return TRUE;
    }
  }

  return FALSE;
}
BOOL PADSetKeyAxisBindings(u32 port, PADKeyAxisBinding bindings[PAD_BUTTON_COUNT]) {
  for (uint32_t i = 0; i < PAD_AXIS_COUNT; ++i) {
    if (!PADSetKeyAxisBinding(port, bindings[i])) {
      return FALSE;
    }
  }
  return TRUE;
}

PADKeyAxisBinding* PADGetKeyAxisBindings(u32 port, u32* axisCount) {
  if (port >= PAD_MAX_CONTROLLERS || !g_keyboardBindings[port].m_mappingsSet) {
    return nullptr;
  }
  auto& state = g_keyboardBindings[port];
  return state.m_axisMapping.data();
}

void PADSetKeyboardActive(u32 port, BOOL active) {
  if (port >= PAD_MAX_CONTROLLERS) {
    return;
  }
  g_keyboardBindings[port].m_mappingsSet = active != FALSE;
}

void PADClearKeyBindings(u32 port) {
  if (port >= PAD_MAX_CONTROLLERS) {
    return;
  }
  g_keyboardBindings[port].m_buttonMapping = g_defaultKeys;
  g_keyboardBindings[port].m_axisMapping = g_defaultKeyAxis;
  g_keyboardBindings[port].m_mappingsSet = false;
}

constexpr uint32_t k_keyboardMagic = SBIG('KBND');
constexpr int32_t k_keyboardVersion = 2;

static void load_keyboard_bindings() {
  std::filesystem::path filePath = std::filesystem::path{aurora::g_config.configPath} / "keyboard_bindings.dat";
  SDL_IOStream* file = SDL_IOFromFile(filePath.string().c_str(), "rb");
  if (file == nullptr) {
    return;
  }

  uint32_t magic = 0;
  SDL_ReadU32LE(file, &magic);
  if (magic != k_keyboardMagic) {
    aurora::input::Log.warn("keyboard_bindings.dat: invalid magic");
    SDL_CloseIO(file);
    return;
  }

  uint32_t version = 0;
  SDL_ReadU32LE(file, &version);
  if (version != k_keyboardVersion) {
    aurora::input::Log.warn("keyboard_bindings.dat: version mismatch (expected {}, got {})", k_keyboardVersion,
                            version);
    SDL_CloseIO(file);
    return;
  }

  int64_t dataStart = (SDL_TellIO(file) + 31) & ~31;
  SDL_SeekIO(file, dataStart, SDL_IO_SEEK_SET);

  for (uint32_t port = 0; port < g_keyboardBindings.size(); ++port) {
    auto& state = g_keyboardBindings[port];
    SDL_ReadIO(file, &state.m_mappingsSet, sizeof(bool));
    SDL_ReadIO(file, state.m_buttonMapping.data(), sizeof(PADKeyButtonBinding) * PAD_BUTTON_COUNT);
    SDL_ReadIO(file, state.m_axisMapping.data(), sizeof(PADKeyAxisBinding) * PAD_AXIS_COUNT);

    if (state.m_mappingsSet) {
      const bool anyBound = std::any_of(state.m_buttonMapping.begin(), state.m_buttonMapping.end(),
                                        [](const PADKeyButtonBinding& b) { return b.scancode != PAD_KEY_INVALID; }) ||
                            std::any_of(state.m_axisMapping.begin(), state.m_axisMapping.end(),
                                        [](const PADKeyAxisBinding& b) { return b.scancode != PAD_KEY_INVALID; });
      if (!anyBound) {
        state.m_mappingsSet = false;
      }
    }
  }
  SDL_CloseIO(file);
}

static void save_keyboard_bindings() {
  std::filesystem::path filePath = std::filesystem::path{aurora::g_config.configPath} / "keyboard_bindings.dat";
  SDL_IOStream* file = SDL_IOFromFile(filePath.string().c_str(), "wb");
  if (file == nullptr) {
    aurora::input::Log.warn("save_keyboard_bindings: failed to open {} for writing", filePath.string());
    return;
  }

  SDL_WriteU32LE(file, k_keyboardMagic);
  SDL_WriteS32LE(file, k_keyboardVersion);

  int64_t dataStart = (SDL_TellIO(file) + 31) & ~31;
  SDL_SeekIO(file, dataStart, SDL_IO_SEEK_SET);

  for (const auto& state : g_keyboardBindings) {
    SDL_WriteU8(file, state.m_mappingsSet);
    SDL_WriteIO(file, state.m_buttonMapping.data(), sizeof(PADKeyButtonBinding) * PAD_BUTTON_COUNT);
    SDL_WriteIO(file, state.m_axisMapping.data(), sizeof(PADKeyAxisBinding) * PAD_AXIS_COUNT);
  }
  SDL_CloseIO(file);
}

void __PADWriteDeadZones(SDL_IOStream* file, aurora::input::GameController& controller) {
  SDL_WriteIO(file, &controller.m_deadZones, sizeof(PADDeadZones));
}

void PADSerializeMappings() {
  std::filesystem::path basePath{aurora::g_config.configPath};

  for (auto& controller : aurora::input::g_GameControllers) {
    EnsureMappingLoaded(&controller.second);
    std::filesystem::path filePath =
        basePath / fmt::format("{}_{:04X}_{:04X}.controller", aurora::input::controller_name(controller.second.m_index),
                               controller.second.m_vid, controller.second.m_pid);
    std::string filePathStr = filePath.string();

    // don't truncate the file if it already exists
    const char* openMode = std::filesystem::exists(filePath) ? "r+b" : "wb";
    SDL_IOStream* file = SDL_IOFromFile(filePathStr.c_str(), openMode);
    if (file == nullptr) {
      return;
    }
    SDL_SeekIO(file, 0, SDL_IO_SEEK_SET);

    // write header
    uint32_t magic = SBIG('CTRL');
    SDL_WriteU32LE(file, magic);
    SDL_WriteU32LE(file, k_mappingsFileVersion);
    SDL_WriteU8(file, controller.second.m_isGameCube);

    // start writing data at next 32-byte aligned offset
    int64_t dataStart = (SDL_TellIO(file) + 31) & ~31;
    SDL_SeekIO(file, dataStart, SDL_IO_SEEK_SET);
    if (controller.second.m_isGameCube) {
      // GameCube adapters expose 4 input devices with the same vid/pid, we store all 4 in the same file
      uint32_t port = aurora::input::player_index(controller.second.m_index);
      uint32_t dzSecLen = sizeof(PADDeadZones);
      uint32_t btnSecLen = sizeof(PADButtonMapping) * PAD_BUTTON_COUNT;
      uint32_t axisSecLen = sizeof(PADAxisMapping) * PAD_AXIS_COUNT;
      // skip to offset in file for this particular port
      SDL_SeekIO(file, dataStart + ((dzSecLen + btnSecLen + axisSecLen) * port), SDL_IO_SEEK_SET);
    }
    __PADWriteDeadZones(file, controller.second);
    SDL_WriteIO(file, controller.second.m_buttonMapping.data(), sizeof(PADButtonMapping) * PAD_BUTTON_COUNT);
    SDL_WriteIO(file, controller.second.m_axisMapping.data(), sizeof(PADAxisMapping) * PAD_AXIS_COUNT);

    if (!controller.second.m_isGameCube) {
      SDL_WriteIO(file, &controller.second.m_rumbleIntensityLow, sizeof(u16));
      SDL_WriteIO(file, &controller.second.m_rumbleIntensityHigh, sizeof(u16));
    }
    SDL_CloseIO(file);
  }

  save_keyboard_bindings();
}

PADDeadZones* PADGetDeadZones(uint32_t port) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return nullptr;
  }
  return &controller->m_deadZones;
}

static constexpr std::array<std::pair<PADButton, std::string_view>, PAD_BUTTON_COUNT> skButtonNames = {{
    {PAD_BUTTON_LEFT, "Left"sv},
    {PAD_BUTTON_RIGHT, "Right"sv},
    {PAD_BUTTON_DOWN, "Down"sv},
    {PAD_BUTTON_UP, "Up"sv},
    {PAD_TRIGGER_Z, "Z"sv},
    {PAD_TRIGGER_R, "R"sv},
    {PAD_TRIGGER_L, "L"sv},
    {PAD_BUTTON_A, "A"sv},
    {PAD_BUTTON_B, "B"sv},
    {PAD_BUTTON_X, "X"sv},
    {PAD_BUTTON_Y, "Y"sv},
    {PAD_BUTTON_START, "Start"sv},
}};

static constexpr std::array<std::pair<PADButton, std::string_view>, PAD_AXIS_COUNT> skAxisNames = {{
    {PAD_AXIS_LEFT_X_POS, "Left X+"sv},
    {PAD_AXIS_LEFT_X_NEG, "Left X-"sv},
    {PAD_AXIS_LEFT_Y_POS, "Left Y+"sv},
    {PAD_AXIS_LEFT_Y_NEG, "Left Y-"sv},
    {PAD_AXIS_RIGHT_X_POS, "Right X+"sv},
    {PAD_AXIS_RIGHT_X_NEG, "Right X-"sv},
    {PAD_AXIS_RIGHT_Y_POS, "Right Y+"sv},
    {PAD_AXIS_RIGHT_Y_NEG, "Right Y-"sv},
    {PAD_AXIS_TRIGGER_L, "Trigger L"sv},
    {PAD_AXIS_TRIGGER_R, "Trigger R"sv},
}};

static constexpr std::array<std::pair<PADButton, std::string_view>, PAD_AXIS_COUNT> skAxisDirLabels = {{
    {PAD_AXIS_LEFT_X_POS, "Right"sv},
    {PAD_AXIS_LEFT_X_NEG, "Left"sv},
    {PAD_AXIS_LEFT_Y_POS, "Up"sv},
    {PAD_AXIS_LEFT_Y_NEG, "Down"sv},
    {PAD_AXIS_RIGHT_X_POS, "Right"sv},
    {PAD_AXIS_RIGHT_X_NEG, "Left"sv},
    {PAD_AXIS_RIGHT_Y_POS, "Up"sv},
    {PAD_AXIS_RIGHT_Y_NEG, "Down"sv},
    {PAD_AXIS_TRIGGER_L, "N/A"sv},
    {PAD_AXIS_TRIGGER_R, "N/A"sv},
}};

const char* PADGetButtonName(PADButton button) {
  auto it = std::find_if(skButtonNames.begin(), skButtonNames.end(),
                         [&button](const auto& pair) { return button == pair.first; });

  if (it != skButtonNames.end()) {
    return it->second.data();
  }

  return nullptr;
}

const char* PADGetNativeButtonName(uint32_t button) {
  return SDL_GetGamepadStringForButton(static_cast<SDL_GamepadButton>(button));
}

const char* PADGetAxisName(PADAxis axis) {
  auto it =
      std::find_if(skAxisNames.begin(), skAxisNames.end(), [&axis](const auto& pair) { return axis == pair.first; });

  if (it != skAxisNames.end()) {
    return it->second.data();
  }

  return nullptr;
}

const char* PADGetAxisDirectionLabel(PADAxis axis) {
  auto it = std::find_if(skAxisDirLabels.begin(), skAxisDirLabels.end(),
                         [&axis](const auto& pair) { return axis == pair.first; });

  if (it != skAxisDirLabels.end()) {
    return it->second.data();
  }

  return nullptr;
}

const char* PADGetNativeAxisName(PADSignedNativeAxis axis) {
  return SDL_GetGamepadStringForAxis(static_cast<SDL_GamepadAxis>(axis.nativeAxis));
}

int32_t PADGetNativeButtonPressed(uint32_t port) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return -1;
  }

  for (uint32_t i = 0; i < SDL_GAMEPAD_BUTTON_COUNT; ++i) {
    if (SDL_GetGamepadButton(controller->m_controller, static_cast<SDL_GamepadButton>(i)) != 0u) {
      return i;
    }
  }
  return -1;
}

PADSignedNativeAxis PADGetNativeAxisPulled(uint32_t port) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return {-1, AXIS_SIGN_POSITIVE};
  }

  for (int32_t i = 0; i < SDL_GAMEPAD_AXIS_COUNT; ++i) {
    auto axisVal = SDL_GetGamepadAxis(controller->m_controller, static_cast<SDL_GamepadAxis>(i));
    if (axisVal >= 16384) {
      return {i, AXIS_SIGN_POSITIVE};
    } else if (axisVal <= -16384) {
      // SDL3 triggers rest at -32768, so skip their negative direction.
      if (i == SDL_GAMEPAD_AXIS_LEFT_TRIGGER || i == SDL_GAMEPAD_AXIS_RIGHT_TRIGGER) {
        continue;
      }
      return {i, AXIS_SIGN_NEGATIVE};
    }
  }
  return {-1, AXIS_SIGN_POSITIVE};
}

void PADRestoreDefaultMapping(uint32_t port) {
  auto* controller = aurora::input::get_controller_for_player(port);
  if (controller == nullptr) {
    return;
  }
  __PADSetDefaultMapping(controller);
  controller->m_axisMapping = g_defaultAxes;
}

void PADBlockInput(bool block) {
  if (g_blockPAD && !block) {
    g_suppressHeldOnRead = true;
  }
  g_blockPAD = block;
}

SDL_Gamepad* PADGetSDLGamepadForIndex(u32 index) {
  const auto* ctrl = __PADGetControllerForIndex(index);
  if (ctrl == nullptr) {
    return nullptr;
  }

  return ctrl->m_controller;
}

void PADSetDefaultMapping(const PADDefaultMapping* mapping, const PADControllerType type) {
  if (g_initialized) {
    aurora::input::Log.fatal("PADSetDefaultMapping called after PADInit()!");
  }

  switch (type) {
  case PAD_TYPE_STANDARD:
    g_defaultButtonsStandard = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_XBOX360:
    g_defaultButtonsXBox360 = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_XBOXONE:
    g_defaultButtonsXBoxOne = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_PS3:
    g_defaultButtonsPS3 = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_PS4:
    g_defaultButtonsPS4 = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_PS5:
    g_defaultButtonsPS5 = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_SWITCH_PROCON:
    g_defaultButtonsProCon = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_JOYCON_LEFT:
    g_defaultButtonsJoyConLeft = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_JOYCON_RIGHT:
    g_defaultButtonsJoyConRight = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_JOYCON_PAIR:
    g_defaultButtonsJoyPair = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_GAMECUBE:
    g_defaultButtonsGamecube = toStdArray(mapping->buttons);
    break;
  case PAD_TYPE_NSO_GAMECUBE:
    g_defaultButtonsNSOGamecube = toStdArray(mapping->buttons);
    break;
  default:
    break;
  }
  g_defaultAxes = toStdArray(mapping->axes);
}

BOOL PADSetColor(u32 port, u8 red, u8 green, u8 blue) {
  const auto ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return FALSE;
  }

  ctrl->m_ledRed = red;
  ctrl->m_ledGreen = green;
  ctrl->m_ledBlue = blue;
  ctrl->m_isColorDirty = true;
  return true;
}

BOOL PADGetColor(u32 port, u8* red, u8* green, u8* blue) {
  const auto ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return FALSE;
  }

  *red = ctrl->m_ledRed;
  *green = ctrl->m_ledGreen;
  *blue = ctrl->m_ledBlue;
  return TRUE;
}

BOOL PADSetSensorEnabled(u32 port, PADSensorType sensor, BOOL enabled) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);

  if (ctrl == nullptr) {
    return FALSE;
  }

  return SDL_SetGamepadSensorEnabled(ctrl->m_controller, static_cast<SDL_SensorType>(sensor), enabled ? true : false)
             ? TRUE
             : FALSE;
}

BOOL PADHasSensor(u32 port, PADSensorType sensor) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return FALSE;
  }

  return SDL_GamepadHasSensor(ctrl->m_controller, static_cast<SDL_SensorType>(sensor)) ? TRUE : FALSE;
}

BOOL PADGetSensorData(u32 port, PADSensorType sensor, f32* data, const int nValues) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return FALSE;
  }

  return SDL_GetGamepadSensorData(ctrl->m_controller, static_cast<SDL_SensorType>(sensor), data, nValues);
}

BOOL PADSetRumbleIntensity(u32 port, u16 low, u16 high) {
  auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr || ctrl->m_isGameCube || !ctrl->m_hasRumble) {
    return FALSE;
  }
  ctrl->m_rumbleIntensityLow = low;
  ctrl->m_rumbleIntensityHigh = high;

  return TRUE;
}

BOOL PADGetRumbleIntensity(u32 port, u16* low, u16* high) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr || ctrl->m_isGameCube || !ctrl->m_hasRumble) {
    *low = 0;
    *high = 0;
    return FALSE;
  }

  *low = ctrl->m_rumbleIntensityLow;
  *high = ctrl->m_rumbleIntensityHigh;
  return TRUE;
}

BOOL PADSupportsRumbleIntensity(u32 port) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return FALSE;
  }

  return !ctrl->m_isGameCube && ctrl->m_hasRumble;
}

BOOL PADIsGCAdapter(u32 port) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return FALSE;
  }
  return ctrl->m_isGameCube;
}

PADBatteryState PADGetBatteryState(u32 port, f32* perc) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return PAD_BATTERYSTATE_ERROR;
  }

  int tmp = 0;
  const auto ret = SDL_GetGamepadPowerInfo(ctrl->m_controller, &tmp);
  if (tmp != -1) {
    *perc = static_cast<float>(tmp) / 100.f;
  } else {
    *perc = static_cast<float>(tmp);
  }
  return static_cast<PADBatteryState>(ret);
}

PADControllerType PADGetControllerType(const u32 port) {
  const auto* ctrl = aurora::input::get_controller_for_player(port);
  if (ctrl == nullptr) {
    return PAD_TYPE_UNKNOWN;
  }

  auto type = SDL_GetGamepadType(ctrl->m_controller);
  return static_cast<PADControllerType>(type);
}

PADControllerType PADGetControllerTypeForIndex(const u32 index) {
  const auto* ctrl = __PADGetControllerForIndex(index);
  if (ctrl == nullptr) {
    return PAD_TYPE_UNKNOWN;
  }

  auto type = SDL_GetGamepadType(ctrl->m_controller);
  if (type == SDL_GAMEPAD_TYPE_NINTENDO_SWITCH_PRO && ctrl->m_pid == 0x2073) {
    return PAD_TYPE_NSO_GAMECUBE;
  }
  return static_cast<PADControllerType>(type);
}