#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

// Best viewed in Xcode in Menlo Regular or SF Mono.

enum custom_keycodes {
    NEWITEM = SAFE_RANGE,
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
    case NEWITEM:
        if (record->event.pressed) {
            // when keycode NEWITEM is pressed
            SEND_STRING("\n- "); // starts a new item in a Markdown-style list
        }
        // else-clause (for when NEWITEM is released) omitted
        break;
    }
    return true; // the key press we just processed should continue to be processed as normal
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Keymap 0: Basic layer
 *
 * ,--------------------------------------------------.           ,--------------------------------------------------.
 * |   =    |   1  |   2  |   3  |   4  |   5  |  L1  |           |  L1  |   6  |   7  |   8  |   9  |   0  |   -    |
 * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
 * |   ⌦    |   Q  |   W  |   E  |   R  |   T  | ~L1  |           | ~L1  |   Y  |   U  |   I  |   O  |   P  |   \    |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |   ⌫    |   A  |   S  |   D  |   F  |   G  |------|           |------|   H  |   J  |   K  |   L  |; / L2| ' / R⌘ |
 * |--------+------+------+------+------+------|  L⌘  |           |  R⌘  |------+------+------+------+------+--------|
 * |  L⇧    |   Z  |   X  |   C  |   V  |   B  |      |           |      |   N  |   M  |   ,  |   .  | / /R⌥|  R⇧    |
 * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
 *   |  L⌃  |  L⌥  |  L⌘  |   ←  |   →  |                                       |   ↑  |   ↓  |   [  |   ]  |  ↩︎   |
 *   `----------------------------------'                                       `----------------------------------'
 *                                        ,-------------.       ,---------------.
 *                                        |  `~  |  ⇪   |       |   ⎋  |    ⌫   |
 *                                 ,------|------|------|       |------+--------+------.
 *                                 |      |      |  L⌥  |       |  R⌥  |        |      |
 *                                 |   ↩︎  |  ⇥  |------|       |------|   ⇥   |      |
 *                                 |      |      |  L⌃  |       |  R⌃  |        |      |
 *                                 `--------------------'       `----------------------'
 */
// 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,   TG(SYMB),
        KC_DEL,         KC_Q,         KC_W,     KC_E,   KC_R,   KC_T,   MO(SYMB),
        KC_BSPC,        KC_A,         KC_S,     KC_D,   KC_F,   KC_G,
        KC_LSFT,        KC_Z,         KC_X,     KC_C,   KC_V,   KC_B,   KC_LGUI,
        KC_LCTL,        KC_LALT,      KC_LGUI,  KC_LEFT,KC_RGHT,
                                                KC_GRV, KC_CAPS,
                                                                KC_LALT,
                                                KC_ENT ,KC_TAB ,KC_LCTL,
        // right hand
             TG(SYMB),  KC_6,   KC_7,   KC_8,   KC_9,   KC_0,             KC_MINS,
             MO(SYMB),  KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,             KC_BSLS,
                        KC_H,   KC_J,   KC_K,   KC_L,   LT(MDIA, KC_SCLN),RGUI_T(KC_QUOT),
             KC_RGUI,   KC_N,   KC_M,   KC_COMM,KC_DOT, RALT_T(KC_SLSH),  KC_RSFT,
                                KC_UP,  KC_DOWN,KC_LBRC,KC_RBRC,          KC_ENT ,
             KC_ESC,            KC_BSPC,
             KC_RALT,
             KC_RCTL,           KC_TAB,      KC_SPC
    ),
/* Keymap 1: Symbol Layer
 *
 * ,--------------------------------------------------.           ,--------------------------------------------------.
 * |        |  F1  |  F2  |  F3  |  F4  |  F5  |      |           |      |  F6  |  F7  |  F8  |  F9  |  F10 |   F11  |
 * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
 * |        |   [  |   ]  |   {  |   }  |   "  |      |           |      |   /  |   7  |   8  |   9  |   *  |   F12  |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |   <  |   >  |   (  |   )  |   '  |------|           |------|   -  |   4  |   5  |   6  |   +  |   `~   |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |      |      |      |      |   =  |      |           |      |   :  |   1  |   2  |   3  |   =  |        |
 * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
 *   |      |      |      |      |      |                                       |   0  |   .  |   ←  |   →  |      |
 *   `----------------------------------'                                       `----------------------------------'
 *                                        ,-------------.       ,-------------.
 *                                        |      |      |       |      |      |
 *                                 ,------|------|------|       |------+------+------.
 *                                 |      |      |      |       |      |      |      |
 *                                 |      |      |------|       |------|      |      |
 *                                 |      |      |      |       |      |      |      |
 *                                 `--------------------'       `--------------------'
 */
// SYMBOLS
[SYMB] = LAYOUT_ergodox(
       // left hand
       KC_TRNS,KC_F1,  KC_F2,  KC_F3,  KC_F4,  KC_F5,  KC_TRNS,
       KC_TRNS,KC_LBRC,KC_RBRC,KC_LCBR,KC_RCBR,KC_DQT ,KC_TRNS,
       KC_TRNS,KC_LABK,KC_RABK,KC_LPRN,KC_RPRN,KC_QUOT,
       KC_TRNS,KC_TRNS,KC_TRNS,KC_TRNS,NEWITEM,KC_EQL ,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_F6,   KC_F7,  KC_F8,   KC_F9,   KC_F10,  KC_F11,
       KC_TRNS, KC_SLSH, KC_7,   KC_8,    KC_9,    KC_ASTR, KC_F12,
                KC_MINS, KC_4,   KC_5,    KC_6,    KC_PLUS, KC_GRV,
       KC_TRNS, KC_COLN, KC_1,   KC_2,    KC_3,    KC_EQL,  KC_TRNS,
                         KC_0,   KC_DOT,  KC_LEFT, KC_RGHT, KC_TRNS,
       KC_TRNS, KC_TRNS,
       KC_TRNS,
       KC_TRNS, KC_TRNS, KC_TRNS
),
/* Keymap 2: Media keys
 *
 * ,--------------------------------------------------.           ,--------------------------------------------------.
 * |        |  F14 |  F15 |PrtScr|SclLck| Pause|      |           |      |  ⌘W  | ⌘⇧`  |  ⌘`  |      |   ⏏  |  Power |
 * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
 * |        |      |  ⌥↑  | PgUp |  ⌥↓  |      |      |           |      |  ⌘]  | ⌥⌘↑  |   ↑  | ⌥⌘↓  |      |        |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |      | Home | PgDn |  End |      |------|           |------|  ⌘[  |   ←  |   ↓  |   →  |      |   F16  |
 * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
 * |        |      |      |      |      |      |      |           |      |      |  ⏯  |  ⏮  |   ⏭ |      |        |
 * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
 *   |      |      |      |      |      |                                       |VolUp |VolDn | Mute |      |      |
 *   `----------------------------------'                                       `----------------------------------'
 *                                        ,-------------.       ,-------------.
 *                                        |      |      |       |      |      |
 *                                 ,------|------|------|       |------+------+------.
 *                                 |      |      |      |       |      |      |      |
 *                                 |      |      |------|       |------|  ⌘C  |  ⌘V  |
 *                                 |      |      |      |       |  ⌘X  |      |      |
 *                                 `--------------------'       `--------------------'
 */
// MEDIA AND MOUSE
[MDIA] = LAYOUT_ergodox(
       KC_TRNS,     KC_F14 ,        KC_F15 ,            KC_PSCR,        KC_SCRL,                KC_PAUS,        KC_TRNS,  /* F14 dims screen, F15 brightens */
       KC_TRNS,     KC_TRNS,        LALT(KC_UP),        KC_PGUP,        LALT(KC_DOWN),          KC_TRNS,        KC_TRNS,
       KC_TRNS,     KC_TRNS,        KC_HOME,            KC_PGDN,        KC_END ,                KC_TRNS,        
       KC_TRNS,     KC_TRNS,        KC_TRNS,            KC_TRNS,        KC_TRNS,                KC_TRNS,        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,     LGUI(KC_W),     LGUI(LSFT(KC_GRV)), LGUI(KC_GRV),   KC_TRNS,                KC_EJCT,        KC_PWR,
       KC_TRNS,     LGUI(KC_RBRC),  LGUI(LALT(KC_UP)),  KC_UP  ,        LGUI(LALT(KC_DOWN)),    KC_TRNS,        KC_TRNS,
                    LGUI(KC_LBRC),  KC_LEFT,            KC_DOWN,        KC_RGHT,                KC_TRNS,        KC_F16 ,
       KC_TRNS,     KC_TRNS,        KC_MPLY,            KC_MPRV,        KC_MNXT,                KC_TRNS,        KC_TRNS,
                                    KC_VOLU,            KC_VOLD,        KC_MUTE,                KC_TRNS,        KC_TRNS,
       KC_TRNS,     KC_TRNS,
       KC_TRNS,
       LGUI(KC_X),  LGUI(KC_C),     LGUI(KC_V)
),
};

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

    uint8_t layer = get_highest_layer(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;
    }
};