/* Copyright 2021 gregorio
 *
 * 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/>.
 */
#pragma once

#include "quantum.h"

#define CALC_DIGITS 12

enum rubi_keycodes {
    ENC_PRESS = SAFE_RANGE,
    CL_PLUS,
    CL_STAR,
    CL_TYPE,
    NEW_SAFE_RANGE
};

enum oled_modes {
    OLED_MODE_DEFAULT,
    OLED_MODE_CALC,
    OLED_MODE_OFF,
    _NUM_OLED_MODES
};

enum encoder_modes {
    ENC_MODE_VOLUME,
    ENC_MODE_MEDIA,
    ENC_MODE_BRIGHTNESS,
    _NUM_ENCODER_MODES
};

extern uint8_t current_layer;
extern uint8_t oled_mode;
extern uint8_t encoder_mode;

extern char calc_result_display[CALC_DIGITS+1];
extern char calc_operator_display;
extern char calc_status_display[CALC_DIGITS+1];
extern uint8_t calc_display_lines;

bool process_record_user_oled(uint16_t keycode, keyrecord_t *record);
void change_oled_mode(void);

void change_encoder_mode(bool reverse);
uint16_t handle_encoder_cw(void);
uint16_t handle_encoder_ccw(void);
uint16_t handle_encoder_press(void);

void calcUpdate(void);
void calcInput(char input);
void calcOperands(void);

/* This is a shortcut to help you visually see your layout.
 *
 * The first section contains all of the arguments representing the physical
 * layout of the board and position of the keys.
 *
 * The second converts the arguments into a two-dimensional array which
 * represents the switch matrix.
 */

/* Rubi matrix layout
 * ,---------------.
 * |             23|
 * |---------------|
 * | 00| 01| 02| 03|
 * |---------------|
 * | 10| 11| 12|   |
 * |-----------| 13|
 * | 20| 21| 22|   |
 * |---------------|
 * | 30| 31| 32|   |
 * |-----------| 33|
 * |   41  | 42|   |
 * `---------------'
 */
#define LAYOUT( \
                       k23, \
        k00, k01, k02, k03, \
        k10, k11, k12, k13, \
        k20, k21, k22, \
        k30, k31, k32, k33, \
             k41, k42 \
) { \
    { k00,   k01, k02, k03   }, \
    { k10,   k11, k12, k13   }, \
    { k20,   k21, k22, k23   }, \
    { k30,   k31, k32, k33   }, \
    { KC_NO, k41, k42, KC_NO }  \
}