/* Copyright 2015-2017 Jack Humbert
 *
 * 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
#include "muse.h"

extern keymap_config_t keymap_config;

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

enum planck_keycodes
{
  QWERTY = SAFE_RANGE,
  BACKLIT,
  EXT_PLV,
  HASHRKT,
  CLNEQLS
};

#define RSE_ENT LT(_RAISE, KC_ENT)
#define LWR_SPC LT(_LOWER, KC_SPC)
#define ESC_CTL CTL_T(KC_ESCAPE)

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

    /* Qwerty
 * ,-----------------------------------------------------------------------------------.
 * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Shift |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Brite| Ctrl | Alt  | GUI  |    Enter    |     Space   | Left | Down |  Up  |Right |
 * `-----------------------------------------------------------------------------------'
 */
    [_QWERTY] = LAYOUT_planck_grid(
        KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
        ESC_CTL, 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_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT,
        BACKLIT, KC_LCTL, KC_LALT, KC_LGUI, KC_NO, RSE_ENT, KC_NO, LWR_SPC, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT),

    /* Lower
 * ,-----------------------------------------------------------------------------------.
 * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |ESCCTL|  :=  |      |  {   |  }   |   (  |   )  |   -  |   =  |   \  |   ~  | GUI |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |  =>  |      |  [   |  ]   |     |     |   _  |   +  |  |   | Home  |  End  |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |             |            | Next | Vol- | Vol+ | Play |
 * `-----------------------------------------------------------------------------------'
 */

    [_LOWER] = LAYOUT_planck_grid(
        KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
        ESC_CTL, CLNEQLS, _______, KC_LCBR, KC_RCBR, KC_LPRN, KC_RPRN, KC_MINS, KC_EQL, KC_BSLS, KC_TILD, KC_RGUI,
        _______, HASHRKT, _______, KC_LBRC, KC_RBRC, _______, _______, KC_UNDS, KC_PLUS, KC_PIPE, KC_HOME, KC_END,
        _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY),

    /* Raise
 * ,-----------------------------------------------------------------------------------.
 * |   `  |      |      |  Up  |      |      |      |   7  |   8  |   9  |   0  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |ESCCTL|     | Left | Down | Right |      |      |   4  |   5  |   6  |      | GUI  |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |  1   |  2   |  3   |     |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |             |             | Next | Vol- | Vol+ | Play |
 * `-----------------------------------------------------------------------------------'
 */
    [_RAISE] = LAYOUT_planck_grid(
        KC_GRV, _______, _______, KC_UP, _______, _______, _______, KC_7, KC_8, KC_9, KC_0, KC_BSPC,
        ESC_CTL, _______, KC_LEFT, KC_DOWN, KC_RIGHT, _______, _______, KC_4, KC_5, KC_6, _______, KC_RGUI,
        _______, _______, _______, _______, _______, _______, _______, KC_1, KC_2, KC_3, _______, _______,
        _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY),

    /* Adjust (Lower + Raise)
 * ,-----------------------------------------------------------------------------------.
 * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Plover|      |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |Voice-|Voice+|Mus on|Musoff|MIDIon|MIDIof|      |      |      |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |             |             |      |      |      |      |
 * `-----------------------------------------------------------------------------------'
 */
    [_ADJUST] = LAYOUT_planck_grid(
        _______, RESET, DEBUG, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, KC_DEL,
        _______, _______, MU_MOD, AU_ON, AU_OFF, _______, _______, QWERTY, _______, _______, _______, _______,
        _______, MUV_DE, MUV_IN, MU_ON, MU_OFF, MI_ON, MI_OFF, TERM_ON, TERM_OFF, _______, _______, _______,
        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______)

};

#ifdef AUDIO_ENABLE
float plover_song[][2] = SONG(PLOVER_SOUND);
float plover_gb_song[][2] = SONG(PLOVER_GOODBYE_SOUND);
#endif

uint32_t layer_state_set_user(uint32_t state)
{
  return update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
}

bool process_record_user(uint16_t keycode, keyrecord_t *record)
{
  switch (keycode)
  {
  case HASHRKT:
    if (record->event.pressed)
    {
      SEND_STRING("=>");
    }
    break;
  case CLNEQLS:
    if (record->event.pressed)
    {
      SEND_STRING(":=");
    }
    break;
  case QWERTY:
    if (record->event.pressed)
    {
      print("mode just switched to qwerty and this is a huge string\n");
      set_single_persistent_default_layer(_QWERTY);
    }
    return false;
    break;
  case BACKLIT:
    if (record->event.pressed)
    {
      register_code(KC_RSFT);
#ifdef BACKLIGHT_ENABLE
      backlight_step();
#endif
#ifdef KEYBOARD_planck_rev5
      PORTE &= ~(1 << 6);
#endif
    }
    else
    {
      unregister_code(KC_RSFT);
#ifdef KEYBOARD_planck_rev5
      PORTE |= (1 << 6);
#endif
    }
    return false;
    break;
  }
  return true;
}

bool muse_mode = false;
uint8_t last_muse_note = 0;
uint16_t muse_counter = 0;
uint8_t muse_offset = 70;
uint16_t muse_tempo = 50;

void encoder_update(bool clockwise)
{
  if (muse_mode)
  {
    if (IS_LAYER_ON(_RAISE))
    {
      if (clockwise)
      {
        muse_offset++;
      }
      else
      {
        muse_offset--;
      }
    }
    else
    {
      if (clockwise)
      {
        muse_tempo += 1;
      }
      else
      {
        muse_tempo -= 1;
      }
    }
  }
  else
  {
    if (clockwise)
    {
#ifdef MOUSEKEY_ENABLE
      register_code(KC_MS_WH_DOWN);
      unregister_code(KC_MS_WH_DOWN);
#else
      register_code(KC_PGDN);
      unregister_code(KC_PGDN);
#endif
    }
    else
    {
#ifdef MOUSEKEY_ENABLE
      register_code(KC_MS_WH_UP);
      unregister_code(KC_MS_WH_UP);
#else
      register_code(KC_PGUP);
      unregister_code(KC_PGUP);
#endif
    }
  }
}

void dip_update(uint8_t index, bool active)
{
  switch (index)
  {
  case 0:
    if (active)
    {
#ifdef AUDIO_ENABLE
      PLAY_SONG(plover_song);
#endif
      layer_on(_ADJUST);
    }
    else
    {
#ifdef AUDIO_ENABLE
      PLAY_SONG(plover_gb_song);
#endif
      layer_off(_ADJUST);
    }
    break;
  case 1:
    if (active)
    {
      muse_mode = true;
    }
    else
    {
      muse_mode = false;
#ifdef AUDIO_ENABLE
      stop_all_notes();
#endif
    }
  }
}

void matrix_scan_user(void)
{
#ifdef AUDIO_ENABLE
  if (muse_mode)
  {
    if (muse_counter == 0)
    {
      uint8_t muse_note = muse_offset + SCALE[muse_clock_pulse()];
      if (muse_note != last_muse_note)
      {
        stop_note(compute_freq_for_midi_note(last_muse_note));
        play_note(compute_freq_for_midi_note(muse_note), 0xF);
        last_muse_note = muse_note;
      }
    }
    muse_counter = (muse_counter + 1) % muse_tempo;
  }
#endif
}

bool music_mask_user(uint16_t keycode)
{
  switch (keycode)
  {
  case RAISE:
  case LOWER:
    return false;
  default:
    return true;
  }
}
