#include QMK_KEYBOARD_H


// Used for SHIFT_ESC
#define MODS_SHIFT_MASK (MOD_BIT(KC_LSFT)|MOD_BIT(KC_RSFT))

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _BL 0
#define _FL 1
#define _RL 2

enum custom_keycodes {
  SFT_ESC = SAFE_RANGE
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  /* Keymap _BL: (Base Layer) Default Layer
   * ,-----------------------------------------------------------.
   * |Esc~| 1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp |
   * |-----------------------------------------------------------|
   * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|  \  |
   * |-----------------------------------------------------------|
   * |CAPS   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return |
   * |-----------------------------------------------------------|
   * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift     |
   * |-----------------------------------------------------------|
   * |Ctrl|Gui |Alt |      Space            |Alt |Gui |FN  |Ctrl |
   * `-----------------------------------------------------------'
   */
  [_BL] = LAYOUT_60_ansi(
    SFT_ESC, KC_1,    KC_2,    KC_3,   KC_4,    KC_5,    KC_6,    KC_7,     KC_8,    KC_9,   KC_0,    KC_MINS, KC_EQL,  KC_BSPC,
    KC_TAB,  KC_Q,    KC_W,    KC_E,   KC_R,    KC_T,    KC_Y,    KC_U,     KC_I,    KC_O,   KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,
    KC_CAPS, KC_A,    KC_S,    KC_D,   KC_F,    KC_G,    KC_H,    KC_J,     KC_K,    KC_L,   KC_SCLN, KC_QUOT,          KC_ENT,
    KC_LSFT, KC_Z,    KC_X,    KC_C,   KC_V,    KC_B,    KC_N,    KC_M,     KC_COMM, KC_DOT, KC_SLSH,                   KC_RSFT,
    KC_LCTL, KC_LGUI, KC_LALT,                           KC_SPC,                             KC_RALT, MO(_RL), MO(_FL), KC_RCTL
  ),

  /* Keymap _FL: Function Layer
   * ,-----------------------------------------------------------.
   * | ~ | F1|F2 |F3 |F4 |F5 |F6 |F7 |F8 |F9 |F10|F11|F12|  DEL  |
   * |-----------------------------------------------------------|
   * |     |   |Up|  |  |  |Cal|   |Ins|   |PrSc|Sclk|Paus|      |
   * |-----------------------------------------------------------|
   * |      |Left|Down|Rig|  |  |  |  |   |   |Home|PgUp|        |
   * |-----------------------------------------------------------|
   * |        |   |App|  |  |   |Vdn|Vup|Mute|End|PgDn|          |
   * |-----------------------------------------------------------|
   * |    |    |    |                        |    |    |    |    |
   * `-----------------------------------------------------------'
   */
  [_FL] = LAYOUT_60_ansi(
    KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,    KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,
    _______, _______, KC_UP,   _______, _______, _______, KC_CALC, _______,  KC_INS,  _______, KC_PSCR, KC_SCRL, KC_PAUS, _______,
    _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, _______, _______,  _______, _______, KC_HOME, KC_PGUP,          _______,
    _______, _______, KC_APP,  _______, _______, _______, KC_VOLD, KC_VOLU,  KC_MUTE, KC_END,  KC_PGDN,                   _______,
    _______, _______, _______,                            _______,                             _______, _______, _______, _______
  ),

  /* Keymap _RL: Function Layer
   * ,-----------------------------------------------------------.
   * |   |   |   |   |   |   |   |   |   |   |   |   |   |  QK_BOOT|
   * |-----------------------------------------------------------|
   * |     |   |   |   |   |   |   |   |   |   |   |BL-|BL+|BL   |
   * |-----------------------------------------------------------|
   * |      |   |   |   |   |   |   |       |   |   |   |        |
   * |-----------------------------------------------------------|
   * |        | F1|F2 | F3|F4 | F5| F6| F7| F8|   |   |          |
   * |-----------------------------------------------------------|
   * |    |    |    |                        |    |    |    |    |
   * `-----------------------------------------------------------'
   */
  [_RL] = LAYOUT_60_ansi(
    KC_GRV,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, QK_BOOT,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, BL_DOWN, BL_UP,   BL_TOGG,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
    _______, UG_TOGG, UG_NEXT, UG_HUEU, UG_HUED, UG_SATU, UG_SATD, UG_VALU, UG_VALD, _______, _______,                   _______,
    _______, _______, _______,                            _______,                            _______, _______, _______, _______
  ),
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case SFT_ESC:
      if (record->event.pressed) {
        if (get_mods() & MODS_SHIFT_MASK) {
          add_key(KC_GRV);
          send_keyboard_report();
        } else {
          add_key(KC_ESC);
          send_keyboard_report();
        }
      } else {
        if (get_mods() & MODS_SHIFT_MASK) {
          del_key(KC_GRV);
          send_keyboard_report();
        } else {
          del_key(KC_ESC);
          send_keyboard_report();
        }
      }

      return false;

    default:
      return true;
  }
}