#pragma message "You may need to add LAYOUT_planck_grid to your keymap layers - see default for an example"
#include "planck.h"

//alias for clarity in layering
#define _______ KC_TRNS
#define A_BSPC  LALT(KC_BSPC)
#define A_LEFT  LALT(KC_LEFT)
#define A_RGHT  LALT(KC_RGHT)
#define C_TAB   LCTL(KC_TAB)
#define GSL     LGUI(S(KC_LEFT))
#define GSR     LGUI(S(KC_RGHT))
#define G_TAB   LGUI(KC_TAB)
#define G_GRV   LGUI(KC_GRV)    // MAC: switch between windows within an application
#define SftEnt  SFT_T(KC_ENT)
#define NAV     LT(2, KC_TAB)

#define _COLEMAK 0
#define _SYMBOL 1
#define _NAVIGATION 2

//tapdance declarations
enum {
  SFT_LCK
};

//alias for tapdance
#define SftLck TD(SFT_LCK)

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

/* Colemak
 * ,-----------------------------------------------------------------------------------.
 * | ESC` |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * | Tab  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |SftLck|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |  /?  |SftEnt|
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Del  | GUI  | Ctrl | Alt  | GUI  |    Space    |Symbol| Left | Down |  Up  |Right |
 * `-----------------------------------------------------------------------------------'
*/

[_COLEMAK] = {
  {KC_GESC, KC_Q   , KC_W   , KC_F   , KC_P   , KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC},
  {NAV    , KC_A   , KC_R   , KC_S   , KC_T   , KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT},
  {SftLck , KC_Z   , KC_X   , KC_C   , KC_V   , KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SftEnt },
  {KC_DEL , KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, KC_SPC,  KC_SPC,  MO(1),   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT}
  },

/* Symbol
 * ,-----------------------------------------------------------------------------------.
 * |   [  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |   ]  |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |  \|  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  |  =+  |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      | Home | End  | ScUp | ScDn |  F1  |  F2  |  -_  |Pg Up |      |   /  |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |  `~  |      |      |      |Alt(Bk)|            |      |Pg Dn | Vol- | Vol+ |      |
 * `-----------------------------------------------------------------------------------'
 */
[_SYMBOL] = {
  {KC_LBRC, KC_1,    KC_2,    KC_3,    KC_4  , KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_RBRC},
  {KC_BSLS, KC_EXLM, KC_AT,   KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_EQL },
  {_______, KC_HOME, KC_END,  KC_WH_U, KC_WH_D,KC_F1  , KC_F2  , KC_MINS, KC_PGUP, _______, _______, _______},
  {KC_GRV,  _______, _______, _______, A_BSPC, _______, _______, _______, KC_PGDN, KC_VOLD, KC_VOLU, KC_MUTE}
  },

/* Navigation*/

[_NAVIGATION] = {
    {_______, _______, _______, _______, _______, _______, C_TAB  , A_LEFT,  KC_UP,   A_RGHT , KC_DEL , _______},
    {_______, _______, _______, _______, _______, _______, GSL    , KC_LEFT, KC_DOWN, KC_RGHT, GSR    , _______},
    {_______, _______, _______, _______, _______, _______, G_TAB  , KC_HOME, _______, KC_END,  G_GRV  , _______},
    {RESET  , _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______}
}
};

// Shift vs capslock function. From bbaserdem's Planck keymap.
void caps_tap (qk_tap_dance_state_t *state, void *user_data) {
    if (state->count == 1) {
        register_code (KC_LSFT);
    } else if (state->count == 2) {
        unregister_code (KC_LSFT);
        register_code (KC_CAPS);
    }
}
void caps_tap_end (qk_tap_dance_state_t *state, void *user_data) {
    if (state->count == 1) {
        unregister_code (KC_LSFT);
    } else {
        unregister_code (KC_CAPS);
    }
}

//Tap Dance Definitions
qk_tap_dance_action_t tap_dance_actions[] = {
  //Tap once for Shift, twice for Caps Lock
  [SFT_LCK] = ACTION_TAP_DANCE_FN_ADVANCED( caps_tap, NULL, caps_tap_end )
};