/* 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,
  MY_PWD
};

#define LOWER MO(_LOWER)
#define RAISE MO(_RAISE)

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  |   ,  |   .  |   /  |Enter |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Ctrl | Alt  | GUI  |Brite |Lower |    Space    |Raise | 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,
    KC_ESC,  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_ENT ,
    KC_LCTL, KC_LALT, KC_LGUI, BACKLIT, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
),

/* Lower
 * ,-----------------------------------------------------------------------------------.
 * |      |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      | Prev | Play | Next |      |      |   *  |   4  |   5  |   6  |   -  | Del  |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |  Pwd | Vol- | MUTE | Vol+ |      |      |   /  |   1  |   2  |   3  |   +  | PgUp |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |             |      |   0  |   .  |   =  | PgDn |
 * `-----------------------------------------------------------------------------------'
 */
[_LOWER] = LAYOUT_planck_grid(
    _______, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
    _______, KC_MPRV, KC_MPLY, KC_MNXT, _______, _______, KC_ASTR, KC_4,    KC_5,    KC_6,    KC_MINS, KC_DEL,
    MY_PWD,  KC_VOLD, KC_MUTE, KC_VOLU, _______, _______, KC_SLSH, KC_1,    KC_2,    KC_3,    KC_PLUS, KC_PGUP,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_0,    KC_DOT,  KC_EQL,  KC_PGDN
),

/* Raise
 * ,-----------------------------------------------------------------------------------.
 * |   `  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |   ~  |      |   /  |   {  |   [  |   ]  |   }  |   \  |   -  |   +  |  |   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |      |   _  |   =  |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |             |      | Home | PgDn | PgUp | End  |
 * `-----------------------------------------------------------------------------------'
 */
[_RAISE] = LAYOUT_planck_grid(

    KC_GRV,  KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
    _______, KC_TILD, _______, KC_SLSH, KC_LCBR, KC_LBRC, KC_RBRC, KC_RCBR, KC_BSLS, KC_MINS, KC_PLUS, KC_PIPE,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_UNDS, KC_EQL,  _______,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
),

/* Adjust (Lower + Raise)
 * ,-----------------------------------------------------------------------------------.
 * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |      |Aud on|Audoff|AGnorm|AGswap|      |      |      |      |      |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |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,  AG_NORM, AG_SWAP, _______, _______, _______, _______, _______,
    _______, MUV_DE,  MUV_IN,  MU_ON,   MU_OFF,  MI_ON,   MI_OFF,  _______, _______, _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
)


};

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

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

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    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;
    case MY_PWD:
      if (record->event.pressed) {
        SEND_STRING("My secret password!");
        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;

bool 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) {
      register_code(KC_PGDN);
      unregister_code(KC_PGDN);
    } else {
      register_code(KC_PGUP);
      unregister_code(KC_PGUP);
    }
  }
    return true;
}

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;
  }
}