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#include <stdint.h>
#include <stdbool.h>
#include <util/delay.h>
#include "matrix.h"
#include "bootloader.h"
#include "debug.h"
#include "keymap.h"
#include "action_layer.h"
#include "eeconfig.h"
#include "bootmagic.h"


void bootmagic(void)
{
    /* check signature */
    if (!eeconfig_is_enabled()) {
        eeconfig_init();
    }

    /* do scans in case of bounce */
    print("boogmagic scan: ... ");
    uint8_t scan = 100;
    while (scan--) { matrix_scan(); _delay_ms(10); }
    print("done.\n");

    /* bootmagic skip */
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_SKIP)) {
        return;
    }

    /* eeconfig clear */
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_EEPROM_CLEAR)) {
        eeconfig_init();
    }

    /* bootloader */
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_BOOTLOADER)) {
        bootloader_jump();
    }

    /* debug enable */
    debug_config.raw = eeconfig_read_debug();
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEBUG_ENABLE)) {
        if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEBUG_MATRIX)) {
            debug_config.matrix = !debug_config.matrix;
        } else if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEBUG_KEYBOARD)) {
            debug_config.keyboard = !debug_config.keyboard;
        } else if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEBUG_MOUSE)) {
            debug_config.mouse = !debug_config.mouse;
        } else {
            debug_config.enable = !debug_config.enable;
        }
    }
    eeconfig_write_debug(debug_config.raw);

    /* keymap config */
    keymap_config.raw = eeconfig_read_keymap();
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_SWAP_CONTROL_CAPSLOCK)) {
        keymap_config.swap_control_capslock = !keymap_config.swap_control_capslock;
    }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_CAPSLOCK_TO_CONTROL)) {
        keymap_config.capslock_to_control = !keymap_config.capslock_to_control;
    }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_SWAP_LALT_LGUI)) {
        keymap_config.swap_lalt_lgui = !keymap_config.swap_lalt_lgui;
    }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_SWAP_RALT_RGUI)) {
        keymap_config.swap_ralt_rgui = !keymap_config.swap_ralt_rgui;
    }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_NO_GUI)) {
        keymap_config.no_gui = !keymap_config.no_gui;
    }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_SWAP_GRAVE_ESC)) {
        keymap_config.swap_grave_esc = !keymap_config.swap_grave_esc;
    }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_SWAP_BACKSLASH_BACKSPACE)) {
        keymap_config.swap_backslash_backspace = !keymap_config.swap_backslash_backspace;
    }
    eeconfig_write_keymap(keymap_config.raw);

    /* default layer */
    uint8_t default_layer = 0;
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_0)) { default_layer |= (1<<0); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_1)) { default_layer |= (1<<1); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_2)) { default_layer |= (1<<2); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_3)) { default_layer |= (1<<3); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_4)) { default_layer |= (1<<4); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_5)) { default_layer |= (1<<5); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_6)) { default_layer |= (1<<6); }
    if (bootmagic_scan_keycode(BOOTMAGIC_KEY_DEFAULT_LAYER_7)) { default_layer |= (1<<7); }
    if (default_layer) {
        eeconfig_write_default_layer(default_layer);
        default_layer_set((uint32_t)default_layer);
    } else {
        default_layer = eeconfig_read_default_layer();
        default_layer_set((uint32_t)default_layer);
    }
}

static bool scan_keycode(uint8_t keycode)
{
    for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
        matrix_row_t matrix_row = matrix_get_row(r);
        for (uint8_t c = 0; c < MATRIX_COLS; c++) {
            if (matrix_row & ((matrix_row_t)1<<c)) {
                if (keycode == keymap_key_to_keycode(0, (key_t){ .row = r, .col = c })) {
                    return true;
                }
            }
        }
    }
    return false;
}

bool bootmagic_scan_keycode(uint8_t keycode)
{
    if (!scan_keycode(BOOTMAGIC_KEY_SALT)) return false;

    return scan_keycode(keycode);
}