/*
Copyright 2013,2014 Kai Ryu <kai1103@gmail.com>

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/>.
*/

#ifndef KEYMAP_IN_EEPROM_H
#define KEYMAP_IN_EEPROM_H

#ifdef KEYMAP_IN_EEPROM_ENABLE

#include <stdint.h>
#include <stdbool.h>

#ifndef EECONFIG_KEYMAP_IN_EEPROM
#define EECONFIG_KEYMAP_IN_EEPROM 0x10
#endif
#ifndef FN_ACTIONS_COUNT
#define FN_ACTIONS_COUNT 32
#endif
#ifndef KEYMAPS_COUNT
#define KEYMAPS_COUNT 1
#endif
#ifndef MATRIX_SIZE
#define MATRIX_SIZE (matrix_rows() * matrix_cols())
#endif
#define KEYS_COUNT (KEYMAPS_COUNT * MATRIX_SIZE)

typedef struct {
    uint16_t checksum;
    uint16_t fn_actions[FN_ACTIONS_COUNT];
    uint8_t keymaps[KEYMAPS_COUNT][MATRIX_ROWS][MATRIX_COLS];
} keymap_in_eeprom_t;

#define EECONFIG_KEYMAP_CHECKSUM   (uint16_t *)(EECONFIG_KEYMAP_IN_EEPROM)
#define EECONFIG_KEYMAP_FN_ACTIONS (uint16_t *)(EECONFIG_KEYMAP_CHECKSUM + 1)
#define EECONFIG_KEYMAP_KEYMAPS    (uint8_t *)(EECONFIG_KEYMAP_FN_ACTIONS + FN_ACTIONS_COUNT)
#define EECONFIG_KEYMAP_DEBUG      (uint16_t *)(EECONFIG_KEYMAP_CHECKSUM - 1)

#define KEYMAP_SIZE (sizeof(uint16_t) * FN_ACTIONS_COUNT + sizeof(uint8_t) * KEYS_COUNT)
#define KEYMAP_WORD_SIZE ((KEYMAP_SIZE + 1) / 2)
#define KEY_OFFSET(layer, row, col) (layer * matrix_rows() * matrix_cols() + row * matrix_cols() + col)

void keymap_in_eeprom_init(void);
void keymap_in_eeprom_disable(void);
bool check_keymap_in_eeprom(void);
void write_keymap_to_eeprom(void);
uint8_t eeconfig_read_keymap_key(uint8_t layer, uint8_t row, uint8_t col);
void eeconfig_write_keymap_key(uint8_t layer, uint8_t row, uint8_t col, uint8_t key);
uint8_t eeconfig_read_keymap_key_by_index(uint16_t index);
void eeconfig_write_keymap_key_by_index(uint16_t index, uint8_t key);
uint16_t eeconfig_read_keymap_fn_action(uint8_t index);
void eeconfig_write_keymap_fn_action(uint8_t index, uint16_t fn_action);

const uint8_t* keymaps_pointer(void);
const uint16_t* fn_actions_pointer(void);
uint16_t keys_count(void);
uint16_t fn_actions_count(void);

#endif

#endif