#include QMK_KEYBOARD_H
#include "debug.h"
#include "action_layer.h"

#define BASE 0 // default layer
#define SYMB 1 // symbols
#define MDIA 2 // media keys

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Keymap 0: Basic layer
 *
 * ,--------------------------------------------------.           ,--------------------------------------------------.
 * |   =    |   1  |   2  |   3  |   4  |   5  | BrBck|           | Play |   6  |   7  |   8  |   9  |   0  | \ / L2 |
 * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
 * | Esc    |   '  |   ,  |   .  |   P  |   Y  | Del  |           | Ins  |   F  |   G  |   C  |   R  |   L  |   /    |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * | BkSp   |   A  |   O  |   E  |   U  |   I  |------|           |------|   D  |   H  |   T  |   N  |   S  |   -    |
 * |--------+------+------+------+------+------| Hyper|           | Meh  |------+------+------+------+------+--------|
 * | LShift |:/Ctrl|   Q  |   J  |   K  |   X  |      |           |      |   B  |   M  |   W  |   V  |Z/Ctrl| RShift |
 * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
 *   |Grv/L1| LAlt | LGui | Left | Right|                                       |  Up  | Down |   [  |   ]  | ~L1  |
 *   `----------------------------------'                                       `----------------------------------'
 *                                        ,-------------.       ,---------------.
 *                                        | App  | L1   |       | L2   |PrntScr |
 *                                 ,------|------|------|       |------+--------+------.
 *                                 |      |      | Home |       | PgUp |        |      |
 *                                 | Space| Tab  |------|       |------| AltShf |Enter |
 *                                 |      |      | End  |       | PgDn |        |      |
 *                                 `--------------------'       `----------------------'
 */
// If it accepts an argument (i.e, is a function), it doesn't need KC_.
// Otherwise, it needs KC_*
[BASE] = LAYOUT_ergodox(  // layer 0 : default
        // left hand
        KC_EQL,         KC_1,           KC_2,    KC_3,   KC_4,   KC_5,   KC_WBAK,
        KC_ESC,         KC_QUOT,        KC_COMM, KC_DOT, KC_P,   KC_Y,   KC_DEL,
        KC_BSPC,        KC_A,           KC_O,    KC_E,   KC_U,   KC_I,
        KC_LSFT,        CTL_T(KC_SCLN), KC_Q,    KC_J,   KC_K,   KC_X,   ALL_T(KC_NO),
        LT(SYMB,KC_GRV),KC_LALT,      KC_LGUI,  KC_LEFT,KC_RGHT,
                                              CTL_T(KC_APP),  TG(1),
                                                              KC_HOME,
                                               KC_SPC,KC_TAB,KC_END,
        // right hand
             KC_MPLY,      KC_6,   KC_7,   KC_8,   KC_9,   KC_0,             LT(MDIA, KC_BSLS),
             KC_INS,       KC_F,   KC_G,   KC_C,   KC_R,   KC_L,             KC_SLSH,
                          KC_D,   KC_H,   KC_T,   KC_N,   KC_S,             KC_MINS,
             MEH_T(KC_NO),KC_B,   KC_M,   KC_W,   KC_V,   CTL_T(KC_Z),      KC_RSFT,
                                  KC_UP,  KC_DOWN,KC_LBRC,KC_RBRC,          TT(SYMB),
             TG(2),        KC_PSCREEN,
             KC_PGUP,
             KC_PGDN,RALT(KC_RSFT), KC_ENT
    ),
/* Keymap 1: Symbol & Media Layer
 *
 * ,--------------------------------------------------.           ,--------------------------------------------------.
 * |        |  F1  |  F2  |  F3  |  F4  |  F5  |      |           |      |  F6  |  F7  |  F8  |  F9  |  F10 |   F11  |
 * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
 * |        |   !  |   @  |   {  |   }  |   |  |      |           |      |   Up |   7  |   8  |   9  |   *  |   F12  |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |   #  |   $  |   (  |   )  |   `  |------|           |------| Down |   4  |   5  |   6  |   +  |        |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |   %  |   ^  |   [  |   ]  |   ~  |      |           |      |   &  |   1  |   2  |   3  |   \  |        |
 * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
 *   |      |      |      | Prev | Next |                                       |      |    . |   0  |   =  |      |
 *   `----------------------------------'                                       `----------------------------------'
 *                                        ,-------------.       ,-------------.
 *                                        |      |      |       |      |      |
 *                                 ,------|------|------|       |------+------+------.
 *                                 |      |      |      |       |VolUp |      |      |
 *                                 |      |      |------|       |------| Mute |      |
 *                                 |      |      |      |       |VolDn |      |      |
 *                                 `--------------------'       `--------------------'
 */
// SYMBOLS
[SYMB] = LAYOUT_ergodox(
       // left hand
       KC_TRNS,KC_F1,  KC_F2,  KC_F3,  KC_F4,  KC_F5,  KC_TRNS,
       KC_TRNS,KC_EXLM,KC_AT,  KC_LCBR,KC_RCBR,KC_PIPE,KC_TRNS,
       KC_TRNS,KC_HASH,KC_DLR, KC_LPRN,KC_RPRN,KC_GRV,
       KC_TRNS,KC_PERC,KC_CIRC,KC_LBRC,KC_RBRC,KC_TILD,KC_TRNS,
       KC_TRNS,KC_TRNS,KC_TRNS,KC_MPRV,KC_MNXT,
                                       KC_TRNS,KC_TRNS,
                                               KC_TRNS,
                               KC_TRNS,KC_TRNS,KC_TRNS,
       // right hand
       KC_TRNS, KC_F6,   KC_F7,  KC_F8,   KC_F9,   KC_F10,  KC_F11,
       KC_TRNS, KC_UP,   KC_7,   KC_8,    KC_9,    KC_ASTR, KC_F12,
                KC_DOWN, KC_4,   KC_5,    KC_6,    KC_PLUS, KC_TRNS,
       KC_TRNS, KC_AMPR, KC_1,   KC_2,    KC_3,    KC_BSLS, KC_TRNS,
                         KC_TRNS,KC_DOT,  KC_0,    KC_EQL,  KC_TRNS,
       KC_TRNS, KC_TRNS,
       KC_VOLU,
       KC_VOLD, KC_MUTE, KC_TRNS
),
/* Keymap 2: QWERTY Layer
 *
 * ,--------------------------------------------------.           ,--------------------------------------------------.
 * |        |      |      |      |      |      |      |           |      |      |      |      |      |      |        |
 * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
 * |        |   Q  |   W  |   E  |   R  |   T  |      |           |      |   Y  |   U  |   I  |   O  |   P  |        |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |   A  |   S  |   D  |   F  |   G  |------|           |------|   H  |   J  |   K  |   L  |   ;  |        |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |Z/Ctrl|   X  |   C  |   V  |   B  |      |           |      |   N  |   M  |   ,  |   .  |//Ctrl|        |
 * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
 *   |      |      |      |      |      |                                       |      |      |      |      |      |
 *   `----------------------------------'                                       `----------------------------------'
 *                                        ,-------------.       ,-------------.
 *                                        |      |      |       |      |      |
 *                                 ,------|------|------|       |------+------+------.
 *                                 |      |      |      |       |      |      |      |
 *                                 |      |      |------|       |------|      |      |
 *                                 |      |      |      |       |      |      |      |
 *                                 `--------------------'       `--------------------'
 */
// MEDIA AND MOUSE
LAYOUT_ergodox(  // layer 0 : default
        // left hand
        KC_TRNS,        KC_TRNS,      KC_TRNS,   KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,
        KC_TRNS,        KC_Q,         KC_W,      KC_E,   KC_R,   KC_T,   KC_TRNS,
        KC_TRNS,        KC_A,         KC_S,      KC_D,   KC_F,   KC_G,
        KC_TRNS,        CTL_T(KC_Z),  KC_X,      KC_C,   KC_V,   KC_B,   KC_TRNS,
        KC_TRNS,        KC_TRNS,      KC_TRNS,   KC_TRNS,KC_TRNS,
                                           KC_TRNS, KC_TRNS,
                                                    KC_TRNS,
                                  KC_TRNS, KC_TRNS, KC_TRNS,
        // right hand
        KC_TRNS,     KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,          KC_TRNS,
        KC_TRNS,     KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,             KC_TRNS,
                     KC_H,   KC_J,   KC_K,   KC_L,   LT(MDIA, KC_SCLN),KC_TRNS,
        KC_TRNS,     KC_N,   KC_M,   KC_COMM,KC_DOT, CTL_T(KC_SLSH),   KC_TRNS,
                             KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,          KC_TRNS,
        KC_TRNS, KC_TRNS,
        KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS
    ),
};

// Runs constantly in the background, in a loop.
void matrix_scan_user(void) {

    uint8_t layer = biton32(layer_state);

    ergodox_board_led_off();
    ergodox_right_led_1_off();
    ergodox_right_led_2_off();
    ergodox_right_led_3_off();
    switch (layer) {
      // TODO: Make this relevant to the ErgoDox EZ.
        case 1:
            ergodox_right_led_1_on();
            break;
        case 2:
            ergodox_right_led_2_on();
            break;
        default:
            // none
            break;
    }

};