#include QMK_KEYBOARD_H

#ifdef PROTOCOL_LUFA
  #include "lufa.h"
  #include "split_util.h"
#endif
#ifdef SSD1306OLED
  #include "ssd1306.h"
#endif

#ifdef RGBLIGHT_ENABLE
//Following line allows macro to read current RGB settings
extern rgblight_config_t rgblight_config;
#endif

extern uint8_t is_master;

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

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


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

/* QWERTY
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * | ESC/`|   1  |   2  |   3  |   4  |   5  |                    |   6  |   7  |   8  |   9  |   0  | ESC  |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * | Tab  |   Q  |   W  |   E  |   R  |   T  |                    |   Y  |   U  |   I  |   O  |   P  |  |   |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |LCTRL |   A  |   S  |   D  |   F  |   G  |-------.    ,-------|   H  |   J  |   K  |   L  |   ;  |  '   |
 * |------+------+------+------+------+------|   [   |    |    ]  |------+------+------+------+------+------|
 * |LShift|   Z  |   X  |   C  |   V  |   B  |-------|    |-------|   N  |   M  |   ,  |   .  |   /  |RShift|
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   | LGui | LAlt |LOWER | /Space  /       \Enter \  |RAISE |   -  |  =   |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */
 [_QWERTY] = LAYOUT( \
  KC_GESC,  KC_1,   KC_2,    KC_3,    KC_4,    KC_5,                     KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    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_BSLS, \
  KC_LCTRL, KC_A,   KC_S,    KC_D,    KC_F,    KC_G,                     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_LBRC,  KC_RBRC, KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, \
                             KC_LGUI, KC_LALT, LOWER, KC_SPC,   KC_ENT,  RAISE,   KC_MINS, KC_EQL \
),
/* LOWER
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * |  `   |  F2  |  F3  |  F4  |  F5  |  F6  |                    |  F7  |  F8  |  F9  | F10  | F11  | DEL  |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |  F1  |      |      |  up  |      |      |                    |      |      | pgup |      | PSCR | F12  |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |      |      | left |  dn  | rght |      |-------.    ,-------|      | home | pgdn | end  |      | INS  |
 * |------+------+------+------+------+------|       |    |       |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------|    |-------|      | mute | prev | next | play |
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   |      |      |      | /       /       \      \  |      | vol- | vol+ |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */
[_LOWER] = LAYOUT( \
  KC_GRV,  KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,                     KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_DEL, \
  KC_F1,   _______, _______, KC_UP,   _______, _______,                   _______, _______, KC_PGUP, _______, KC_PSCR, KC_F12, \
  _______, KC_CAPS, KC_LEFT, KC_DOWN, KC_RGHT, _______,                   _______, KC_HOME, KC_PGDN, KC_END,  _______, KC_INS, \
  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MUTE, KC_MPRV, KC_MNXT, KC_MPLY, _______, \
                             _______, _______, _______, _______, _______, _______, KC_VOLD, KC_VOLU \
),
/* RAISE
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * |  `   |  F2  |  F3  |  F4  |  F5  |  F6  |                    |  F7  |  F8  |  F9  | F10  | F11  | DEL  |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |  F1  |      |      |  up  |      |      |                    |      |      | pgup |      | PSCR | F12  |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |      |      | left |  dn  | rght |      |-------.    ,-------|      | home | pgdn | end  |      | INS  |
 * |------+------+------+------+------+------|       |    |       |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------|    |-------|      | mute | prev | next | play |
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   |      |      |      | /       /       \      \  |      | vol- | vol+ |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */

[_RAISE] = LAYOUT( \
  KC_GRV,  KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,                     KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_DEL, \
  KC_F1,   _______, _______, KC_UP,   _______, _______,                   _______, _______, KC_PGUP, _______, KC_PSCR, KC_F12, \
  _______, KC_CAPS, KC_LEFT, KC_DOWN, KC_RGHT, _______,                   _______, KC_HOME, KC_PGDN, KC_END,  _______, KC_INS, \
  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MUTE, KC_MPRV, KC_MNXT, KC_MPLY, _______, \
                             _______, _______, _______, _______, _______, _______, KC_VOLD, KC_VOLU \
),
/* ADJUST
 * ,-----------------------------------------.                    ,-----------------------------------------.
 * |      |      |      |      |      |      |                    |      |      |      |      |      |      |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |      |      |      |      |      |      |                    |      |      |      |      |      |      |
 * |------+------+------+------+------+------|                    |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------.    ,-------|      |      |RGB ON| HUE+ | SAT+ | VAL+ |
 * |------+------+------+------+------+------|       |    |       |------+------+------+------+------+------|
 * |      |      |      |      |      |      |-------|    |-------|      |      | MODE | HUE- | SAT- | VAL- |
 * `-----------------------------------------/       /     \      \-----------------------------------------'
 *                   |      |      |      | /       /       \      \  |      |      |      |
 *                   |      |      |      |/       /         \      \ |      |      |      |
 *                   `----------------------------'           '------''--------------------'
 */
  [_ADJUST] = LAYOUT( \
  _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
  _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
  _______, _______, _______, _______, _______, _______,                   _______, _______, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, \
  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD,\
                             _______, _______, _______, _______, _______,  _______, _______, _______ \
  )
};

int RGB_current_mode;

// Setting ADJUST layer RGB back to default
void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
  if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
    layer_on(layer3);
  } else {
    layer_off(layer3);
  }
}

void matrix_init_user(void) {
    #ifdef RGBLIGHT_ENABLE
      RGB_current_mode = rgblight_config.mode;
    #endif
}

//SSD1306 OLED update loop, make sure to enable OLED_ENABLE=yes in rules.mk
#ifdef OLED_ENABLE

oled_rotation_t oled_init_user(oled_rotation_t rotation) {
  if (!is_keyboard_master())
    return OLED_ROTATION_180;  // flips the display 180 degrees if offhand
  return rotation;
}

// When you add source files to SRC in rules.mk, you can use functions.
const char *read_layer_state(void);
const char *read_logo(void);
void set_keylog(uint16_t keycode, keyrecord_t *record);
const char *read_keylog(void);
const char *read_keylogs(void);

// const char *read_mode_icon(bool swap);
// const char *read_host_led_state(void);
// void set_timelog(void);
// const char *read_timelog(void);

void oled_task_user(void) {
  if (is_keyboard_master()) {
    // If you want to change the display of OLED, you need to change here
    oled_write_ln(read_layer_state(), false);
    oled_write_ln(read_keylog(), false);
    oled_write_ln(read_keylogs(), false);
    //oled_write_ln(read_mode_icon(keymap_config.swap_lalt_lgui), false);
    //oled_write_ln(read_host_led_state(), false);
    //oled_write_ln(read_timelog(), false);
  } else {
    oled_write(read_logo(), false);
  }
}
#endif // OLED_ENABLE

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  if (record->event.pressed) {
#ifdef OLED_ENABLE
    set_keylog(keycode, record);
#endif
    // set_timelog();
  }

  switch (keycode) {
    case LOWER:
      if (record->event.pressed) {
        layer_on(_LOWER);
        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_LOWER);
        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
      }
      return false;
      break;
    case RAISE:
      if (record->event.pressed) {
        layer_on(_RAISE);
        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_RAISE);
        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
      }
      return false;
      break;
    case ADJUST:
        if (record->event.pressed) {
          layer_on(_ADJUST);
        } else {
          layer_off(_ADJUST);
        }
        return false;
        break;
  }
  return true;
}