/* keymap.c — the single source of truth for keyboard keys. VMCTL_KEYS maps
 * Linux evdev codes to QEMU QKeyCode names (sorted by evdev for bsearch);
 * vmctl_evdev_to_qcode is the sole lookup, consumed by the QMP driver. */

#include "keymap.h"

#include <linux/input-event-codes.h>
#include <stdlib.h>

const vmctl_keymap VMCTL_KEYS[] = {
    { KEY_ESC,        "esc"           },
    { KEY_1,          "1"             },
    { KEY_2,          "2"             },
    { KEY_3,          "3"             },
    { KEY_4,          "4"             },
    { KEY_5,          "5"             },
    { KEY_6,          "6"             },
    { KEY_7,          "7"             },
    { KEY_8,          "8"             },
    { KEY_9,          "9"             },
    { KEY_0,          "0"             },
    { KEY_MINUS,      "minus"         },
    { KEY_EQUAL,      "equal"         },
    { KEY_BACKSPACE,  "backspace"     },
    { KEY_TAB,        "tab"           },
    { KEY_Q,          "q"             },
    { KEY_W,          "w"             },
    { KEY_E,          "e"             },
    { KEY_R,          "r"             },
    { KEY_T,          "t"             },
    { KEY_Y,          "y"             },
    { KEY_U,          "u"             },
    { KEY_I,          "i"             },
    { KEY_O,          "o"             },
    { KEY_P,          "p"             },
    { KEY_LEFTBRACE,  "bracket_left"  },
    { KEY_RIGHTBRACE, "bracket_right" },
    { KEY_ENTER,      "ret"           },
    { KEY_LEFTCTRL,   "ctrl"          },
    { KEY_A,          "a"             },
    { KEY_S,          "s"             },
    { KEY_D,          "d"             },
    { KEY_F,          "f"             },
    { KEY_G,          "g"             },
    { KEY_H,          "h"             },
    { KEY_J,          "j"             },
    { KEY_K,          "k"             },
    { KEY_L,          "l"             },
    { KEY_SEMICOLON,  "semicolon"     },
    { KEY_APOSTROPHE, "apostrophe"    },
    { KEY_GRAVE,      "grave_accent"  },
    { KEY_LEFTSHIFT,  "shift"         },
    { KEY_BACKSLASH,  "backslash"     },
    { KEY_Z,          "z"             },
    { KEY_X,          "x"             },
    { KEY_C,          "c"             },
    { KEY_V,          "v"             },
    { KEY_B,          "b"             },
    { KEY_N,          "n"             },
    { KEY_M,          "m"             },
    { KEY_COMMA,      "comma"         },
    { KEY_DOT,        "dot"           },
    { KEY_SLASH,      "slash"         },
    { KEY_RIGHTSHIFT, "shift_r"       },
    { KEY_LEFTALT,    "alt"           },
    { KEY_SPACE,      "spc"           },
    { KEY_CAPSLOCK,   "caps_lock"     },
    { KEY_F1,         "f1"            },
    { KEY_F2,         "f2"            },
    { KEY_F3,         "f3"            },
    { KEY_F4,         "f4"            },
    { KEY_F5,         "f5"            },
    { KEY_F6,         "f6"            },
    { KEY_F7,         "f7"            },
    { KEY_F8,         "f8"            },
    { KEY_F9,         "f9"            },
    { KEY_F10,        "f10"           },
    { KEY_NUMLOCK,    "num_lock"      },
    { KEY_SCROLLLOCK, "scroll_lock"   },
    { KEY_102ND,      "less"          },
    { KEY_F11,        "f11"           },
    { KEY_F12,        "f12"           },
    { KEY_RIGHTCTRL,  "ctrl_r"        },
    { KEY_SYSRQ,      "print"         },
    { KEY_RIGHTALT,   "alt_r"         },
    { KEY_HOME,       "home"          },
    { KEY_UP,         "up"            },
    { KEY_PAGEUP,     "pgup"          },
    { KEY_LEFT,       "left"          },
    { KEY_RIGHT,      "right"         },
    { KEY_END,        "end"           },
    { KEY_DOWN,       "down"          },
    { KEY_PAGEDOWN,   "pgdn"          },
    { KEY_INSERT,     "insert"        },
    { KEY_DELETE,     "delete"        },
    { KEY_POWER,      "power"         },
    { KEY_PAUSE,      "pause"         },
    { KEY_LEFTMETA,   "meta_l"        },
    { KEY_RIGHTMETA,  "meta_r"        },
    { KEY_SLEEP,      "sleep"         },
    { KEY_WAKEUP,     "wake"          },
};

const int VMCTL_KEYS_LEN = (int)(sizeof VMCTL_KEYS / sizeof VMCTL_KEYS[0]);

static int key_cmp(const void* a, const void* b) {
    return ((const vmctl_keymap*)a)->evdev - ((const vmctl_keymap*)b)->evdev;
}

const char* vmctl_evdev_to_qcode(int evdev) {
    vmctl_keymap k = { .evdev = evdev, .qcode = NULL };
    const vmctl_keymap* e = bsearch(&k, VMCTL_KEYS, (size_t)VMCTL_KEYS_LEN,
                                 sizeof VMCTL_KEYS[0], key_cmp);
    return e ? e->qcode : NULL;
}