#include "gherkin.h"
#include "action_layer.h"
#ifdef AUDIO_ENABLE
  #include "audio.h"
#endif
#include "eeconfig.h"

extern keymap_config_t keymap_config;

//Tap Dance Declarations
enum {
  TD_Z_LCTL = 0,
  TD_X_LGUI = 1,
  TD_C_LALT = 2,
  TD_A_TAB = 3,
  TD_Q_ESC = 4,
//   M(0)
};

//Friendly Layer Names
enum gherkin_layers {
  _QWERTY,
  _SONGS,
  _NUMBERS,
  _SYMBOLS,
  _PLOVER,
  _ADJUST
};

// custom keycodes
enum gherkin_keycodes {
  QWERTY = SAFE_RANGE,
  NUMBERS,
  SYMBOLS,
  SONGS,
  PLOVER,
  BACKLIT,
  MACSLEEP,
  EXT_PLV
};

// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [_QWERTY] = KEYMAP(
		TD(TD_Q_ESC),   KC_W,              KC_E,           KC_R,  KC_T,               KC_Y,  KC_U,  KC_I,     KC_O,    KC_P,
		TD(TD_A_TAB),   LT(_SYMBOLS,KC_S), KC_D,           KC_F,  KC_G,               KC_H,  KC_J,  KC_K,     KC_L,    LT(_ADJUST,KC_SPC),
		TD(TD_Z_LCTL),  TD(TD_X_LGUI),    TD(TD_C_LALT),  KC_V,  KC_B,  LT(_NUMBERS, KC_N),  KC_M,  KC_COMM,  KC_DOT,  SFT_T(KC_ENT))
  ,
  [_NUMBERS] = KEYMAP(
    KC_1,   KC_2,   KC_3,   KC_4,   KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,
    KC_F1,  KC_F2,  KC_F3,  KC_F4,  KC_F5,   KC_F6,   KC_HOME, KC_PGDN, KC_PGUP,  KC_END ,
    KC_F7,  KC_F8,  KC_F9,  KC_F10, LT(_ADJUST,KC_F11),  _______, KC_LEFT, KC_DOWN, KC_UP,   KC_RIGHT)
  ,
  [_SYMBOLS] = KEYMAP(
    KC_EXLM,   KC_AT,   KC_HASH,   KC_DLR,   KC_PERC,  KC_CIRC,  KC_AMPR,  KC_ASTR, KC_LPRN,       KC_RPRN,
    KC_GRV,  _______,  XXXXXXX,  KC_LBRC,   KC_RBRC,  KC_BSLS,  KC_MINS,  KC_EQL ,  KC_SCLN,      KC_QUOT,
    KC_TILD,  MO(_ADJUST),  XXXXXXX,  KC_LCBR,   KC_RCBR,  KC_PIPE,  KC_UNDS,  KC_PLUS,  S(KC_SCLN), S(KC_QUOT))
  ,
  [_PLOVER] = KEYMAP(
    KC_Q,    KC_W,    KC_E,    KC_R,    KC_1,       KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC,
    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,       KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
    EXT_PLV, XXXXXXX, KC_C,    KC_V,    XXXXXXX,    KC_N,    KC_M,    XXXXXXX, XXXXXXX, XXXXXXX)
  ,
  [_ADJUST] = KEYMAP(
    RESET,    _______,  _______,  _______,    _______,  QWERTY,  NUMBERS,  SYMBOLS,     PLOVER,  SONGS,
    MUV_DE,   MUV_IN,   MU_ON,    MU_OFF,     _______,  _______,  _______,  _______,     MACSLEEP,  _______,
    BACKLIT,  _______,  _______,  _______,    _______,  _______,  _______,  _______,     _______,  _______)
};

#ifdef AUDIO_ENABLE

float tone_startup[][2]    = SONG(STARTUP_SOUND);
float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
float tone_plover[][2]     = SONG(PLOVER_SOUND);
float tone_plover_gb[][2]  = SONG(PLOVER_GOODBYE_SOUND);
float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);

float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
#endif

void persistant_default_layer_set(uint16_t default_layer) {
  eeconfig_update_default_layer(default_layer);
  default_layer_set(default_layer);
}

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case QWERTY:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(tone_qwerty);
        #endif
        persistant_default_layer_set(1UL<<_QWERTY);
      }
      return false;
      break;
    case NUMBERS:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(tone_dvorak);
        #endif
        persistant_default_layer_set(1UL<<_NUMBERS);
      }
      return false;
      break;
    case SYMBOLS:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(tone_colemak);
        #endif
        persistant_default_layer_set(1UL<<_SYMBOLS);
      }
      return false;
      break;
    case PLOVER:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          stop_all_notes();
          PLAY_SONG(tone_plover);
        #endif
        layer_off(_NUMBERS);
        layer_off(_SYMBOLS);
        layer_off(_ADJUST);
        layer_on(_PLOVER);
        if (!eeconfig_is_enabled()) {
            eeconfig_init();
        }
        keymap_config.raw = eeconfig_read_keymap();
        keymap_config.nkro = 1;
        eeconfig_update_keymap(keymap_config.raw);
      }
      return false;
      break;
    case EXT_PLV:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(tone_plover_gb);
        #endif
        layer_off(_PLOVER);
      }
      return false;
      break;
    case MACSLEEP:
      if (record->event.pressed) {
          // ACTION_MODS_KEY(MOD_LCTL | MOD_LSFT, KC_POWER);
          register_code(KC_RSFT);
          register_code(KC_RCTL);
          register_code(KC_POWER);
          unregister_code(KC_POWER);
          unregister_code(KC_RCTL);
          unregister_code(KC_RSFT);
      }
      return false;
      break;
    case BACKLIT:
      if (record->event.pressed) {
        register_code(KC_RSFT);
        #ifdef BACKLIGHT_ENABLE
          backlight_step();
        #endif
      } else {
        unregister_code(KC_RSFT);
      }
      return false;
      break;
    }
    return true;
}


/*
const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
	keyevent_t event = record->event;

	switch (id) {
        case 0: {
            if (record->event.pressed) {
                key_timer = timer_read(); // if the key is being pressed, we start the timer.
            }
            else { // this means the key was just released, so we can figure out how long it was pressed for (tap or "held down").
                if (timer_elapsed(key_timer) > 150) { // 150 being 150ms, the threshhold we pick for counting something as a tap.
                    return MACRO( D(LSFT), END  );
                }
                else {
                    return MACRO( T(N), END  );
                }
            }
            break;
        }
      }
	return MACRO_NONE;
}*/

void matrix_init_user(void) {
    #ifdef AUDIO_ENABLE
        startup_user();
    #endif
}

#ifdef AUDIO_ENABLE

void startup_user()
{
    _delay_ms(20); // gets rid of tick
    PLAY_SONG(tone_startup);
}

void shutdown_user()
{
    PLAY_SONG(tone_goodbye);
    _delay_ms(150);
    stop_all_notes();
}

void music_on_user(void)
{
    music_scale_user();
}

void music_scale_user(void)
{
    PLAY_SONG(music_scale);
}

#endif

void matrix_scan_user(void) {
}

//Tap Dance Definitions
qk_tap_dance_action_t tap_dance_actions[] = {
  //Tap once for Esc, twice for Caps Lock
  [TD_Z_LCTL]  = ACTION_TAP_DANCE_DOUBLE(KC_Z, KC_LCTL),
  [TD_X_LGUI]  = ACTION_TAP_DANCE_DOUBLE(KC_X, KC_LGUI),
  [TD_C_LALT]  = ACTION_TAP_DANCE_DOUBLE(KC_C, KC_LALT),
  [TD_A_TAB]  = ACTION_TAP_DANCE_DOUBLE(KC_A, KC_TAB),
  [TD_Q_ESC]  = ACTION_TAP_DANCE_DOUBLE(KC_Q, KC_ESC)
};

// don't know what this is doing...
/*
void led_set_user(uint8_t usb_led) {

	if (usb_led & (1 << USB_LED_NUM_LOCK)) {
		DDRD |= (1 << 5); PORTD &= ~(1 << 5);
	} else {
		DDRD &= ~(1 << 5); PORTD &= ~(1 << 5);
	}

	if (usb_led & (1 << USB_LED_CAPS_LOCK)) {
		DDRB |= (1 << 0); PORTB &= ~(1 << 0);
	} else {
		DDRB &= ~(1 << 0); PORTB &= ~(1 << 0);
	}

	if (usb_led & (1 << USB_LED_SCROLL_LOCK)) {

	} else {

	}

	if (usb_led & (1 << USB_LED_COMPOSE)) {

	} else {

	}

	if (usb_led & (1 << USB_LED_KANA)) {

	} else {

	}

}
*/
