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/*
  Copyright (c) 2020 Fred Silberberg

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE.
*/

#include QMK_KEYBOARD_H

typedef enum {
    SINGLE_TAP, SINGLE_HOLD, DOUBLE, TRIPLE, QUAD
} tap_dance_state_enum;

enum {
  TD_KEY = 0
};

static tap_dance_state_enum tap_dance_state;
static bool tap_dance_active = false;
static uint16_t timer;

void dance_cycle(bool override_timer) {
  if (tap_dance_active)
  {
    if (timer_elapsed(timer) > 100 || override_timer)
    {
      switch (tap_dance_state)
      {
        case SINGLE_HOLD:
        {
          rgblight_increase_hue_noeeprom();
          break;
        }

        case DOUBLE:
        {
          rgblight_step_noeeprom();
          break;
        }

        case TRIPLE:
        {
          rgblight_toggle_noeeprom();
          break;
        }

        default:
          // Not needed
          break;
      }

      timer = timer_read();
    }
  }
}

void dance_finished(qk_tap_dance_state_t *state, void* user_data) {
  // Determine the current state
  switch (state->count)
  {
    case 1:
    {
      if (state->interrupted || state->pressed == 0) tap_dance_state = SINGLE_TAP;
      else tap_dance_state = SINGLE_HOLD;
      break;
    }
    case 2:
    {
      tap_dance_state = DOUBLE;
      break;
    }
    case 3:
    {
      tap_dance_state = TRIPLE;
      break;
    }
    default:
    {
      tap_dance_state = QUAD;
      break;
    }
  }

  switch (tap_dance_state)
  {
    case SINGLE_TAP:
    {
      // VS Build: CTRL+SHIFT+B
      send_string_with_delay_P(PSTR(SS_DOWN(X_LCTRL) SS_DOWN(X_LSHIFT) "b" SS_UP(X_LSHIFT) SS_UP(X_LCTRL)), 10);
      tap_dance_active = false;
      break;
    }

    case SINGLE_HOLD:
    case DOUBLE:
    case TRIPLE:
    {
      // These are handled by the matrix_scan, which will register the appropriate rgb
      // functions every scan
      tap_dance_active = true;
      timer = timer_read();
      dance_cycle(true);
      break;
    }

    case QUAD:
    {
      // Reprogram
      reset_keyboard();
      break;
    }
  }
}

void dance_reset(qk_tap_dance_state_t *state, void* user_data)
{
  tap_dance_active = false;
}

qk_tap_dance_action_t tap_dance_actions[] = {
  [TD_KEY] = ACTION_TAP_DANCE_FN_ADVANCED (NULL, dance_finished, dance_reset)
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  [0] = LAYOUT(TD(TD_KEY))
};

void matrix_scan_user(void) {
  dance_cycle(false);
}