#include <SDL.h>
#include "../Keyboard.h"

Keyboard keyboard;

// TODO map unknown key codes
uint8_t mapSdlKeycode(SDL_Keycode keyCode) {
    switch (keyCode) {
        case SDLK_UNKNOWN:
            return KeyUnknown;
        case SDLK_RETURN:
            return KeyUnknown;
        case SDLK_ESCAPE:
            return KeyEscape;
        case SDLK_BACKSPACE:
            return KeyBackspace;            
        case SDLK_TAB:
            return KeyTab;
        case SDLK_SPACE:
            return KeySpace;
        case SDLK_EXCLAIM:
            return KeyUnknown;
        case SDLK_QUOTEDBL:
            return KeyUnknown;
        case SDLK_HASH:
            return KeyUnknown;
        case SDLK_PERCENT:
            return KeyUnknown;
        case SDLK_DOLLAR:
            return KeyUnknown;
        case SDLK_AMPERSAND:
            return KeyUnknown;
        case SDLK_QUOTE:
            return KeyUnknown;
        case SDLK_LEFTPAREN:
            return KeyUnknown;
        case SDLK_RIGHTPAREN:
            return KeyUnknown;
        case SDLK_ASTERISK:
            return KeyUnknown;
        case SDLK_PLUS:
            return KeyUnknown;
        case SDLK_COMMA:
            return KeyUnknown;
        case SDLK_MINUS:
            return KeyUnknown;
        case SDLK_PERIOD:
            return KeyUnknown;
        case SDLK_SLASH:
            return KeyUnknown;
        case SDLK_0:
            return KeyUnknown;
        case SDLK_1:
            return KeyUnknown;
        case SDLK_2:
            return KeyUnknown;
        case SDLK_3:
            return KeyUnknown;
        case SDLK_4:
            return KeyUnknown;
        case SDLK_5:
            return KeyUnknown;
        case SDLK_6:
            return KeyUnknown;
        case SDLK_7:
            return KeyUnknown;
        case SDLK_8:
            return KeyUnknown;
        case SDLK_9:
            return KeyUnknown;
        case SDLK_COLON:
            return KeyUnknown;
        case SDLK_SEMICOLON:
            return KeyUnknown;
        case SDLK_LESS:
            return KeyUnknown;
        case SDLK_EQUALS:
            return KeyUnknown;
        case SDLK_GREATER:
            return KeyUnknown;
        case SDLK_QUESTION:
            return KeyUnknown;
        case SDLK_AT:
            return KeyUnknown;
        case SDLK_LEFTBRACKET:
            return KeyUnknown;
        case SDLK_BACKSLASH:
            return KeyUnknown;
        case SDLK_RIGHTBRACKET:
            return KeyUnknown;
        case SDLK_CARET:
            return KeyUnknown;
        case SDLK_UNDERSCORE:
            return KeyUnknown;
        case SDLK_BACKQUOTE:
            return KeyUnknown;
        case SDLK_a:
            return KeyUnknown;
        case SDLK_b:
            return KeyUnknown;
        case SDLK_c:
            return KeyUnknown;
        case SDLK_d:
            return KeyUnknown;
        case SDLK_e:
            return KeyUnknown;
        case SDLK_f:
            return KeyUnknown;
        case SDLK_g:
            return KeyUnknown;
        case SDLK_h:
            return KeyUnknown;
        case SDLK_i:
            return KeyUnknown;
        case SDLK_j:
            return KeyUnknown;
        case SDLK_k:
            return KeyUnknown;
        case SDLK_l:
            return KeyUnknown;
        case SDLK_m:
            return KeyUnknown;
        case SDLK_n:
            return KeyUnknown;
        case SDLK_o:
            return KeyO;
        case SDLK_p:
            return KeyP;
        case SDLK_q:
            return KeyQ;
        case SDLK_r:
            return KeyR;
        case SDLK_s:
            return KeyS;
        case SDLK_t:
            return KeyT;
        case SDLK_u:
            return KeyU;
        case SDLK_v:
            return KeyV;
        case SDLK_w:
            return KeyW;
        case SDLK_x:
            return KeyX;
        case SDLK_y:
            return KeyY;
        case SDLK_z:
            return KeyZ;
        case SDLK_CAPSLOCK:
            return KeyCapsLock;
        case SDLK_F1:
            return KeyF1;
        case SDLK_F2:
            return KeyF2;
        case SDLK_F3:
            return KeyF3;
        case SDLK_F4:
            return KeyF4;
        case SDLK_F5:
            return KeyF5;
        case SDLK_F6:
            return KeyF6;
        case SDLK_F7:
            return KeyF7;
        case SDLK_F8:
            return KeyF8;
        case SDLK_F9:
            return KeyF9;
        case SDLK_F10:
            return KeyF10;
        case SDLK_F11:
            return KeyF11;
        case SDLK_F12:
            return KeyF12;
        case SDLK_PRINTSCREEN:
            return KeyPrint;
        case SDLK_SCROLLLOCK:
            return KeyScrollLock;
        case SDLK_PAUSE:
            return KeyPause;
        case SDLK_INSERT:
            return KeyInsert;
        case SDLK_HOME:
            return KeyHome;
        case SDLK_PAGEUP:
            return KeyPageUp;
        case SDLK_DELETE:
            return KeyDelete;
        case SDLK_END:
            return KeyEnd;
        case SDLK_PAGEDOWN:
            return KeyPageDown;
        case SDLK_RIGHT:
            return KeyRight;
        case SDLK_LEFT:
            return KeyLeft;
        case SDLK_DOWN:
            return KeyDown;
        case SDLK_UP:
            return KeyUp;
        case SDLK_NUMLOCKCLEAR:
            return KeyUnknown;
        case SDLK_KP_DIVIDE:
            return KeyUnknown;
        case SDLK_KP_MULTIPLY:
            return KeyUnknown;
        case SDLK_KP_MINUS:
            return KeyUnknown;
        case SDLK_KP_PLUS:
            return KeyUnknown;
        case SDLK_KP_ENTER:
            return KeyUnknown;
        case SDLK_KP_1:
            return KeyUnknown;
        case SDLK_KP_2:
            return KeyUnknown;
        case SDLK_KP_3:
            return KeyUnknown;
        case SDLK_KP_4:
            return KeyUnknown;
        case SDLK_KP_5:
            return KeyUnknown;
        case SDLK_KP_6:
            return KeyUnknown;
        case SDLK_KP_7:
            return KeyUnknown;
        case SDLK_KP_8:
            return KeyUnknown;
        case SDLK_KP_9:
            return KeyUnknown;
        case SDLK_KP_0:
            return KeyUnknown;
        case SDLK_KP_PERIOD:
            return KeyUnknown;
        case SDLK_APPLICATION:
            return KeyUnknown;
        case SDLK_POWER:
            return KeyUnknown;
        case SDLK_KP_EQUALS:
            return KeyUnknown;
        case SDLK_F13:
            return KeyUnknown;
        case SDLK_F14:
            return KeyUnknown;
        case SDLK_F15:
            return KeyUnknown;
        case SDLK_F16:
            return KeyUnknown;
        case SDLK_F17:
            return KeyUnknown;
        case SDLK_F18:
            return KeyUnknown;
        case SDLK_F19:
            return KeyUnknown;
        case SDLK_F20:
            return KeyUnknown;
        case SDLK_F21:
            return KeyUnknown;
        case SDLK_F22:
            return KeyUnknown;
        case SDLK_F23:
            return KeyUnknown;
        case SDLK_F24:
            return KeyUnknown;
        case SDLK_EXECUTE:
            return KeyUnknown;
        case SDLK_HELP:
            return KeyUnknown;
        case SDLK_MENU:
            return KeyUnknown;
        case SDLK_SELECT:
            return KeyUnknown;
        case SDLK_STOP:
            return KeyUnknown;
        case SDLK_AGAIN:
            return KeyUnknown;
        case SDLK_UNDO:
            return KeyUnknown;
        case SDLK_CUT:
            return KeyUnknown;
        case SDLK_COPY:
            return KeyUnknown;
        case SDLK_PASTE:
            return KeyUnknown;
        case SDLK_FIND:
            return KeyUnknown;
        case SDLK_MUTE:
            return KeyUnknown;
        case SDLK_VOLUMEUP:
            return KeyUnknown;
        case SDLK_VOLUMEDOWN:
            return KeyUnknown;
        case SDLK_KP_COMMA:
            return KeyUnknown;
        case SDLK_KP_EQUALSAS400:
            return KeyUnknown;
        case SDLK_ALTERASE:
            return KeyUnknown;
        case SDLK_SYSREQ:
            return KeyUnknown;
        case SDLK_CANCEL:
            return KeyUnknown;
        case SDLK_CLEAR:
            return KeyUnknown;
        case SDLK_PRIOR:
            return KeyUnknown;
        case SDLK_RETURN2:
            return KeyUnknown;
        case SDLK_SEPARATOR:
            return KeyUnknown;
        case SDLK_OUT:
            return KeyUnknown;
        case SDLK_OPER:
            return KeyUnknown;
        case SDLK_CLEARAGAIN:
            return KeyUnknown;
        case SDLK_CRSEL:
            return KeyUnknown;
        case SDLK_EXSEL:
            return KeyUnknown;
        case SDLK_KP_00:
            return KeyUnknown;
        case SDLK_KP_000:
            return KeyUnknown;
        case SDLK_THOUSANDSSEPARATOR:
            return KeyUnknown;
        case SDLK_DECIMALSEPARATOR:
            return KeyUnknown;
        case SDLK_CURRENCYUNIT:
            return KeyUnknown;
        case SDLK_CURRENCYSUBUNIT:
            return KeyUnknown;
        case SDLK_KP_LEFTPAREN:
            return KeyUnknown;
        case SDLK_KP_RIGHTPAREN:
            return KeyUnknown;
        case SDLK_KP_LEFTBRACE:
            return KeyUnknown;
        case SDLK_KP_RIGHTBRACE:
            return KeyUnknown;
        case SDLK_KP_TAB:
            return KeyUnknown;
        case SDLK_KP_BACKSPACE:
            return KeyUnknown;
        case SDLK_KP_A:
            return KeyUnknown;
        case SDLK_KP_B:
            return KeyUnknown;
        case SDLK_KP_C:
            return KeyUnknown;
        case SDLK_KP_D:
            return KeyUnknown;
        case SDLK_KP_E:
            return KeyUnknown;
        case SDLK_KP_F:
            return KeyUnknown;
        case SDLK_KP_XOR:
            return KeyUnknown;
        case SDLK_KP_POWER:
            return KeyUnknown;
        case SDLK_KP_PERCENT:
            return KeyUnknown;
        case SDLK_KP_LESS:
            return KeyUnknown;
        case SDLK_KP_GREATER:
            return KeyUnknown;
        case SDLK_KP_AMPERSAND:
            return KeyUnknown;
        case SDLK_KP_DBLAMPERSAND:
            return KeyUnknown;
        case SDLK_KP_VERTICALBAR:
            return KeyUnknown;
        case SDLK_KP_DBLVERTICALBAR:
            return KeyUnknown;
        case SDLK_KP_COLON:
            return KeyUnknown;
        case SDLK_KP_HASH:
            return KeyUnknown;
        case SDLK_KP_SPACE:
            return KeyUnknown;
        case SDLK_KP_AT:
            return KeyUnknown;
        case SDLK_KP_EXCLAM:
            return KeyUnknown;
        case SDLK_KP_MEMSTORE:
            return KeyUnknown;
        case SDLK_KP_MEMRECALL:
            return KeyUnknown;
        case SDLK_KP_MEMCLEAR:
            return KeyUnknown;
        case SDLK_KP_MEMADD:
            return KeyUnknown;
        case SDLK_KP_MEMSUBTRACT:
            return KeyUnknown;
        case SDLK_KP_MEMMULTIPLY:
            return KeyUnknown;
        case SDLK_KP_MEMDIVIDE:
            return KeyUnknown;
        case SDLK_KP_PLUSMINUS:
            return KeyUnknown;
        case SDLK_KP_CLEAR:
            return KeyUnknown;
        case SDLK_KP_CLEARENTRY:
            return KeyUnknown;
        case SDLK_KP_BINARY:
            return KeyUnknown;
        case SDLK_KP_OCTAL:
            return KeyUnknown;
        case SDLK_KP_DECIMAL:
            return KeyUnknown;
        case SDLK_KP_HEXADECIMAL:
            return KeyUnknown;
        case SDLK_LCTRL:
            return KeyLeftCtrl;
        case SDLK_LSHIFT:
            return KeyLeftShift;
        case SDLK_LALT:
            return KeyLeftAlt;
        case SDLK_LGUI:
            return KeyUnknown;
        case SDLK_RCTRL:
            return KeyRightControl;
        case SDLK_RSHIFT:
            return KeyRightShift;
        case SDLK_RALT:
            return KeyRightAlt;
        case SDLK_RGUI:
            return KeyUnknown;
        case SDLK_MODE:
            return KeyUnknown;
        case SDLK_AUDIONEXT:
            return KeyUnknown;
        case SDLK_AUDIOPREV:
            return KeyUnknown;
        case SDLK_AUDIOSTOP:
            return KeyUnknown;
        case SDLK_AUDIOPLAY:
            return KeyUnknown;
        case SDLK_AUDIOMUTE:
            return KeyUnknown;
        case SDLK_MEDIASELECT:
            return KeyUnknown;
        case SDLK_WWW:
            return KeyUnknown;
        case SDLK_MAIL:
            return KeyUnknown;
        case SDLK_CALCULATOR:
            return KeyUnknown;
        case SDLK_COMPUTER:
            return KeyUnknown;
        case SDLK_AC_SEARCH:
            return KeyUnknown;
        case SDLK_AC_HOME:
            return KeyUnknown;
        case SDLK_AC_BACK:
            return KeyUnknown;
        case SDLK_AC_FORWARD:
            return KeyUnknown;
        case SDLK_AC_STOP:
            return KeyUnknown;
        case SDLK_AC_REFRESH:
            return KeyUnknown;
        case SDLK_AC_BOOKMARKS:
            return KeyUnknown;
        case SDLK_BRIGHTNESSDOWN:
            return KeyUnknown;
        case SDLK_BRIGHTNESSUP:
            return KeyUnknown;
        case SDLK_DISPLAYSWITCH:
            return KeyUnknown;
        case SDLK_KBDILLUMTOGGLE:
            return KeyUnknown;
        case SDLK_KBDILLUMDOWN:
            return KeyUnknown;
        case SDLK_KBDILLUMUP:
            return KeyUnknown;
        case SDLK_EJECT:
            return KeyUnknown;
        case SDLK_SLEEP:
            return KeyUnknown;
        case SDLK_APP1:
            return KeyUnknown;
        case SDLK_APP2:
            return KeyUnknown;
        case SDLK_AUDIOREWIND:
            return KeyUnknown;
        case SDLK_AUDIOFASTFORWARD:
            return KeyUnknown;
        case SDLK_SOFTLEFT:
            return KeyUnknown;
        case SDLK_SOFTRIGHT:
            return KeyUnknown;
        case SDLK_CALL:
            return KeyUnknown;
        case SDLK_ENDCALL:
            return KeyUnknown;
        default: ;
    }

    return KeyUnknown;
}

static const char *keyNames[] = {
    "<unknown:00>",
    "KeyEscape", // = 0x01,
    "Key1", // = 0x02,
    "Key2", // = 0x03,
    "Key3", // = 0x04,
    "Key4", // = 0x05,
    "Key5", // = 0x06,
    "Key6", // = 0x07,
    "Key7", // = 0x08,
    "Key8", // = 0x09,
    "Key9", // = 0x0a,
    "Key0", // = 0x0b,
    "KeyMinus", // = 0x0c,
    "KeyEqual", // = 0x0d,
    "KeyBackspace", // = 0x0e,
    "KeyTab", // = 0x0f,
    
    "KeyQ", // = 0x10,
    "KeyW", // = 0x11,
    "KeyE", // = 0x12,
    "KeyR", // = 0x13,
    "KeyT", // = 0x14,
    "KeyY", // = 0x15,
    "KeyU", // = 0x16,
    "KeyI", // = 0x17,
    "KeyO", // = 0x18,
    "KeyP", // = 0x19,
    "KeyBracketLeft", // = 0x1a,
    "KeyBracketRight", // = 0x1b,
    "KeyEnter", // = 0x1c,
    "KeyLeftCtrl", // = 0x1d,
    "KeyA", // = 0x1e,
    "KeyS", // = 0x1f,
    
    "KeyD", // = 0x20,
    "KeyF", // = 0x21,
    "KeyG", // = 0x22,
    "KeyH", // = 0x23,
    "KeyJ", // = 0x24,
    "KeyK", // = 0x25,
    "KeyL", // = 0x26,
    "KeySemicolon", // = 0x27,
    "KeyApostrophe", // = 0x28,
    "KeyBacktick", // = 0x29,
    "KeyLeftShift", // = 0x2a,
    "KeyBackslash", // = 0x2b,
    "KeyZ", // = 0x2c,
    "KeyX", // = 0x2d,
    "KeyC", // = 0x2e,
    "KeyV", // = 0x2f,
    
    "KeyB", // = 0x30,
    "KeyN", // = 0x31,
    "KeyM", // = 0x32,
    "KeyComma", // = 0x33,
    "KeyPeriod", // = 0x34,
    "KeySlash", // = 0x35,
    "KeyRightShift", // = 0x36,
    "KeyKeypadMultiply", // = 0x37,
    "KeyLeftAlt", // = 0x38,
    "KeySpace", // = 0x39,
    "KeyCapsLock", // = 0x3a,
    "KeyF1", // = 0x3b,
    "KeyF2", // = 0x3c,
    "KeyF3", // = 0x3d,
    "KeyF4", // = 0x3e,
    "KeyF5", // = 0x3f,
    
    "KeyF6", // = 0x40,
    "KeyF7", // = 0x41,
    "KeyF8", // = 0x42,
    "KeyF9", // = 0x43,
    "KeyF10", // = 0x44,
    "KeyNumLock", // = 0x45,
    "KeyScrollLock", // = 0x46,
    "KeyKeypad7", // = 0x47,
    "KeyKeypad8", // = 0x48,
    "KeyKeypad9", // = 0x49,
    "KeyKeypadMinus", // = 0x4a,
    "KeyKeypad4", // = 0x4b,
    "KeyKeypad5", // = 0x4c,
    "KeyKeypad6", // = 0x4d,
    "KeyKeypadPlus", // = 0x4e,
    "KeyKeypad1", // = 0x4f,
    
    "KeyKeypad2", // = 0x50,
    "KeyKeypad3", // = 0x51,
    "KeyKeypad0", // = 0x52,
    "KeyKeypadPeriod", // = 0x53,
    "<unknown:54>",
    "<unknown:55>",
    "<unknown:56>",
    "KeyF11", // = 0x57,
    "KeyF12", // = 0x58,
    "<unknown:59>",
    "<unknown:5a>",
    "<unknown:5b>",
    "<unknown:5c>",
    "<unknown:5d>",
    "<unknown:5e>",
    "<unknown:5f>",

    "<unknown:60>",
    "<unknown:61>",
    "<unknown:62>",
    "<unknown:63>",
    "<unknown:64>",
    "<unknown:65>",
    "<unknown:66>",
    "<unknown:67>",
    "<unknown:68>",
    "<unknown:69>",
    "<unknown:6a>",
    "<unknown:6b>",
    "<unknown:6c>",
    "<unknown:6d>",
    "<unknown:6e>",
    "<unknown:6f>",

    "<unknown:70>",
    "<unknown:71>",
    "<unknown:72>",
    "<unknown:73>",
    "<unknown:74>",
    "<unknown:75>",
    "<unknown:76>",
    "<unknown:77>",
    "<unknown:78>",
    "<unknown:79>",
    "<unknown:7a>",
    "<unknown:7b>",
    "<unknown:7c>",
    "<unknown:7d>",
    "<unknown:7e>",
    "<unknown:7f>",

    "<unknown:80>",
    "<unknown:81>",
    "<unknown:82>",
    "<unknown:83>",
    "<unknown:84>",
    "<unknown:85>",
    "<unknown:86>",
    "<unknown:87>",
    "<unknown:88>",
    "<unknown:89>",
    "<unknown:8a>",
    "<unknown:8b>",
    "<unknown:8c>",
    "<unknown:8d>",
    "<unknown:8e>",
    "<unknown:8f>",

    "KeyMediaPrev", // = 0x90,
    "<unknown:91>",
    "<unknown:92>",
    "<unknown:93>",
    "<unknown:94>",
    "<unknown:95>",
    "<unknown:96>",
    "<unknown:97>",
    "<unknown:98>",
    "KeyMediaNext", // = 0x99,
    "<unknown:9a>",
    "<unknown:9b>",
    "KeyKeypadEnter", // = 0x9c,
    "KeyRightControl", // = 0x9d,
    "<unknown:9e>",
    "<unknown:9f>",

    "KeyMediaMute", // = 0xa0,
    "KeyMediaCalculator", // = 0xa1,
    "KeyMediaPlay", // = 0xa2,
    "<unknown:a3>",
    "KeyMediaStop", // = 0xa4,
    "<unknown:a5>",
    "<unknown:a6>",
    "<unknown:a7>",
    "<unknown:a8>",
    "<unknown:a9>",
    "<unknown:aa>",
    "<unknown:ab>",
    "<unknown:ac>",
    "<unknown:ad>",
    "KeyMediaVolumeDown", // = 0xae,
    "<unknown:af>",

    "KeyMediaVolumeUp", // = 0xb0,
    "<unknown:b1>",
    "KeyMediaWww", // = 0xb2,
    "<unknown:b3>",
    "<unknown:b4>",
    "KeyKeypadDivide", // = 0xb5,
    "<unknown:b6>",
    "<unknown:b7>",
    "KeyRightAlt", // = 0xb8,
    "<unknown:b9>",
    "<unknown:ba>",
    "<unknown:bb>",
    "<unknown:bc>",
    "<unknown:bd>",
    "<unknown:be>",
    "<unknown:bf>",

    "<unknown:c0>",
    "<unknown:c1>",
    "<unknown:c2>",
    "<unknown:c3>",
    "<unknown:c4>",
    "<unknown:c5>",
    "<unknown:c6>",
    "KeyHome", // = 0xc7,
    "KeyUp", // = 0xc8,
    "KeyPageUp", // = 0xc9,
    "<unknown:ca>",
    "KeyLeft", // = 0xcb,
    "<unknown:cc>",
    "KeyRight", // = 0xcd,
    "<unknown:ce>",
    "KeyEnd", // = 0xcf,

    "KeyDown", // = 0xd0,
    "KeyPageDown", // = 0xd1,
    "KeyInsert", // = 0xd2,
    "KeyDelete", // = 0xd3,
    "<unknown:d4>",
    "<unknown:d5>",
    "<unknown:d6>",
    "<unknown:d7>",
    "<unknown:d8>",
    "<unknown:d9>",
    "<unknown:da>",
    "KeyLeftGui", // = 0xdb,
    "KeyRightGui", // = 0xdc,
    "KeyApps", // = 0xdd,
    "KeyAcpiPower", // = 0xde,
    "KeyAcpiSleep", // = 0xdf,

    "<unknown:e0>",
    "<unknown:e1>",
    "<unknown:e2>",
    "KeyAcpiWake", // = 0xe3,
    "<unknown:e4>",
    "KeyMediaWwwSearch", // = 0xe5,
    "KeyMediaWwwFavorites", // = 0xe6,
    "KeyMediaWwwRefresh", // = 0xe7,
    "KeyMediaWwwStop", // = 0xe8,
    "KeyMediaWwwForward", // = 0xe9,
    "KeyMediaWwwBack", // = 0xea,
    "KeyMediaMyComputer", // = 0xeb,
    "KeyMediaEmail", // = 0xec,
    "KeyMediaSelect", // = 0xed,
    "<unknown:ee>",
    "<unknown:ef>",

    "<unknown:f0>",
    "<unknown:f1>",
    "<unknown:f2>",
    "<unknown:f3>",
    "<unknown:f4>",
    "<unknown:f5>",
    "<unknown:f6>",
    "<unknown:f7>",
    "<unknown:f8>",
    "<unknown:f9>",
    "<unknown:fa>",
    "<unknown:fb>",
    "<unknown:fc>",
    "<unknown:fd>",
    "KeyPrint", // = 0xfe,
    "KeyPause", // = 0xff,
};

void keyboardIsr() {
    keyboard.Isr();
}

Keyboard::Keyboard() {
    // TODO
}

Keyboard::~Keyboard() {
    // TODO
}

Keyboard::KeyHandleFunction Keyboard::setKeyUpHandler(KeyHandleFunction handler) {
    auto oldHandler = _keyUpHandler;
    _keyUpHandler = handler;
    return oldHandler;
}

Keyboard::KeyHandleFunction Keyboard::setKeyDownHandler(KeyHandleFunction handler) {
    auto oldHandler = _keyDownHandler;
    _keyDownHandler = handler;
    return oldHandler;
}

Keyboard::KeyHandleFunction Keyboard::setKeyRepeatHandler(KeyHandleFunction handler) {
    auto oldHandler = _keyRepeatHandler;
    _keyRepeatHandler = handler;
    return oldHandler;
}

const char *Keyboard::getKeyName(unsigned char keyCode) {
    return keyNames[keyCode];
}

void Keyboard::Isr() {
    // TODO
}

void Keyboard::keyDown(SDL_Keycode keyCode) {
    auto c = mapSdlKeycode(keyCode);
    if (keyState[c]) {
        if (_keyRepeatHandler) _keyRepeatHandler(c);
    } else {
        keyState[c] = true;
        if (_keyDownHandler) _keyDownHandler(c);
    }
}

void Keyboard::keyUp(SDL_Keycode keyCode) {
    auto c = mapSdlKeycode(keyCode);
    keyState[c] = false;
    if (_keyUpHandler) _keyUpHandler(c);
}