/* Copyright 2021 Danny Nguyen <danny@keeb.io>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include QMK_KEYBOARD_H

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

enum custom_keycodes {
    QWERTY = SAFE_RANGE,
    LOWER,
    RAISE,
    ADJUST,
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Default Layer
     * ,-----------------------------------------------------------.
     * | Esc|  Q |  W |  E |  R |  T |  Y |  U |  I |  O |  P | BS |
     * |-----------------------------------------------------------|
     * | Tab |  A |  S |  D |  F |  G |  H |  J |  K |  L | Ent    |
     * |-----------------------------------------------------------|
     * | LSft   |  Z |  X |  C |  V |  B |  N |  M |  ,  |  . | /? |
     * |-----------------------------------------------------------|
     * | LCtl | LGui| LAlt|  spc fn0  |  spc fn1    |fn2|RAlt|RCtl |
     * `-----------------------------------------------------------'
     */
    [_QWERTY] = LAYOUT(
        KC_ESC,  KC_Q,   KC_W,   KC_E,   KC_R,   KC_T,   KC_Y,   KC_U,   KC_I,    KC_O,    KC_P,   KC_BSPC,
        KC_TAB,  KC_A,   KC_S,   KC_D,   KC_F,   KC_G,   KC_H,   KC_J,   KC_K,    KC_L,    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_LCTL, KC_LGUI, KC_LALT, LT(_LOWER, KC_SPC), LT(_RAISE, KC_SPC), LT(_ADJUST, KC_LGUI), KC_RALT, KC_RCTL
    ),

    [_LOWER] = LAYOUT(
        KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
        KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE,
        KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),BL_TOGG, BL_UP,  BL_DOWN,
        _______, _______, _______, _______, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
    ),

    [_RAISE] = LAYOUT(
        KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
        KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS,
        KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, _______, _______, KC_DEL,
        _______, KC_TRNS, _______, KC_TRNS, KC_TRNS, _______, _______, UG_TOGG
    ),

    [_ADJUST] = LAYOUT(
        _______, QK_BOOT, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL,
        _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, _______, _______, _______,  _______,
        _______, _______, _______, _______, _______, _______, _______, _______,  _______,  _______,  _______,
        _______, _______, _______, _______, _______, _______, _______, _______
    )
};

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;
    break;
    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;
      break;
    case ADJUST:
      if (record->event.pressed) {
        layer_on(_ADJUST);
      } else {
        layer_off(_ADJUST);
      }
      return false;
      break;
  }
  return true;
}

bool encoder_update_user(uint8_t index, bool clockwise) {
    if (index == 0) {
        if (clockwise) {
            tap_code(KC_VOLU);
        } else {
            tap_code(KC_VOLD);
        }
    }
    return false;
}