#include QMK_KEYBOARD_H

enum custom_keycodes {
  LOWER = SAFE_RANGE,
  RAISE,
};

enum layer_names {
  _QWERTY,
  _LOWER,
  _RAISE,
  _ADJUST,
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

  /* Qwerty
   * ,----------------------------------------------------------------------------------------------------------------------.
   * | ESC  |   1  |   2  |   3  |   4  |   5  |   =  |                    |   -  |   6  |   7  |   8  |   9  |   0  |Backsp|
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * |  Tab |   Q  |   W  |   E  |   R  |   T  |      |                    |   [  |   Y  |   U  |   I  |   O  |   P  |  ]   |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * | Raise|   A  |   S  |   D  |   F  |   G  |      |                    |      |   H  |   J  |   K  |   L  |   ;  |  "   |
   * |------+------+------+------+------+------+---------------------------+------+------+------+------+------+------+------|
   * | Shift|   Z  |   X  |   C  |   V  |   B  ||||||||  Del |      |      ||||||||   N  |   M  |   ,  |   .  |   /  | Shift|
   * |-------------+------+------+------+------+------+------+------+------+------+------+------+------+------+-------------|
   * |  `   |  \   |  ALt | Ctrl |||||||| Lower| Space|  LGui|||||||| Enter| Space| Raise|||||||| Left | Down |  Up  | Right|
   * ,----------------------------------------------------------------------------------------------------------------------.
   */
  [_QWERTY] = LAYOUT( 
     KC_ESC,   KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_EQL,                        KC_MINS, KC_6,    KC_7,  KC_8,    KC_9,    KC_0,    KC_BSPC,
     KC_TAB,   KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,   XXXXXXX,                        KC_LBRC, KC_Y,    KC_U,  KC_I,    KC_O,    KC_P,    KC_RBRC,
      RAISE,   KC_A,    KC_S,    KC_D,    KC_F,    KC_G,   XXXXXXX,                        XXXXXXX, KC_H,    KC_J,  KC_K,    KC_L,    KC_SCLN, KC_QUOT,
    KC_LSFT,   KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,            KC_DEL,        KC_PSCR,         KC_N,    KC_M,  KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
     KC_GRV,KC_BSLS, KC_LALT, KC_LCTL,            LOWER,    KC_SPC,KC_LGUI,        KC_ENT ,KC_SPC , RAISE,          KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
  ),

  /* Lower
   * ,----------------------------------------------------------------------------------------------------------------------.
   * |      |  F1  |  F2  |  F3  |  F4  |  F5  |      |                    |      |  F6  |  F7  |  F8  |  F9  |  F10 |      |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * |      |      |  Up  |      |      |      |      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * | Raise| Left | Down | Rght |      |      |      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+---------------------------+------+------+------+------+------+------+------|
   * | Shift|      |      |      |      |      ||||||||      |      |      ||||||||      |      |      |      |      | Shift|
   * |-------------+------+------+------+------+------+------+------+------+------+------+------+------+------+-------------|
   * |      |      |      |      |||||||| Lower| Space|      ||||||||      | Space| Raise||||||||      |      |      |      |
   * ,----------------------------------------------------------------------------------------------------------------------.
   */
  [_LOWER] = LAYOUT(
    XXXXXXX,  KC_F1,   KC_F2,   KC_F3,   KC_F4,    KC_F5, XXXXXXX,                        XXXXXXX, KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  XXXXXXX, 
    XXXXXXX, XXXXXXX,   KC_UP, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      RAISE, KC_LEFT, KC_DOWN, KC_RGHT, XXXXXXX, XXXXXXX, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    KC_LSFT, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,           XXXXXXX,     XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_RSFT,
    XXXXXXX, XXXXXXX, XXXXXXX,XXXXXXX,             LOWER,   KC_SPC ,XXXXXXX,     XXXXXXX, KC_SPC ,   RAISE,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX 
  ),

  /* Raise
   * ,----------------------------------------------------------------------------------------------------------------------.
   * |      |      |      |      |      |      |      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * |      |      | PgUp |      |      |      |      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * | Raise| Home | PgDwn| End  |      |      |      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+---------------------------+------+------+------+------+------+------+------|
   * | Shift|      |      |      |      |      ||||||||      |      |      ||||||||      |      |      |      |      | Shift|
   * |-------------+------+------+------+------+------+------+------+------+------+------+------+------+------+-------------|
   * |      |      |      |      |||||||| Lower| Space|      ||||||||      |Space | Raise||||||||      |      |      |      |
   * ,----------------------------------------------------------------------------------------------------------------------.
   */
  [_RAISE] = LAYOUT(
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    XXXXXXX, XXXXXXX, KC_PGUP, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      RAISE, KC_HOME,KC_PGDOWN, KC_END, XXXXXXX, XXXXXXX, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    KC_LSFT, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,           XXXXXXX,     XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_RSFT,
    XXXXXXX, XXXXXXX, XXXXXXX,XXXXXXX,             LOWER,   KC_SPC ,XXXXXXX,     XXXXXXX, KC_SPC ,   RAISE,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX 
  ),

  /* Adjust  (Both Raise and Lower Together)
   * ,----------------------------------------------------------------------------------------------------------------------.
   * | Reset|      |      |      |      |      |      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * |      |      |      |      |rgbtog|bl_tog|      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+------+--------------------+------+------+------+------+------+------+------|
   * | Raise|      |rgbhui|rgbsai|rgbvai|bl_inc|      |                    |      |      |      |      |      |      |      |
   * |------+------+------+------+------+------+---------------------------+------+------+------+------+------+------+------|
   *|EEP_RST|      |rgbhud|rgbdec|rgbvad|bl_dec||||||||      |      |      ||||||||      |      |      |      |      | Shift|
   * |-------------+------+------+------+------+------+------+------+------+------+------+------+------+------+-------------|
   * |      |      |      |      |||||||| Lower| Space|      ||||||||      | Space| Raise||||||||      |      |      |      |
   * ,----------------------------------------------------------------------------------------------------------------------.
   */
  [_ADJUST] = LAYOUT(
      RESET, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_TOG, BL_TOGG, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
      RAISE, XXXXXXX, RGB_HUI, RGB_SAI, RGB_VAI,  BL_INC, XXXXXXX,                        XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
    EEP_RST, XXXXXXX, RGB_HUD, RGB_SAD, RGB_VAD,  BL_DEC,           XXXXXXX,     XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_RSFT,
    XXXXXXX, XXXXXXX, XXXXXXX,XXXXXXX,             LOWER,   KC_SPC ,XXXXXXX,     XXXXXXX,  KC_SPC,   RAISE,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
  )
}; 

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case LOWER:
      if (record->event.pressed) {
        layer_on(_LOWER);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_LOWER);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      }
      return false;
    case RAISE:
      if (record->event.pressed) {
        layer_on(_RAISE);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_RAISE);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      }
      return false;
  }
  return true;
}