/*
 * Copyright (C) 2024  Tristan Riehs
 *
 * 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 3 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/>.
 */
#include <curses.h>
#include <stdlib.h>
#include <string.h>

#include "disp.h"
#include "calc_data.h"

static struct calc_data calcs[CALC_COUNT] = {0};
static int current_idx = 0;
static WINDOW *win;

void
init(void)
{
	win = initscr();
	clear();
	refresh();
}

void
display_calc(int x, int y)
{
	calcs[current_idx].x = x;
	calcs[current_idx].y = y;
	clear();
	printw("%d + %d = ", x, y);
	refresh();
}

int
read_input(void)
{
	char c = getchar();

	switch(c)
	{
#ifndef NDEBUG
	case 'g':
	case 'r':
		return DISP_RELOAD;
#endif
	case 'q':
		return DISP_QUIT;
	default:
		return DISP_ERR;
	}
	
	return DISP_ERR;
}

void
display_res(bool right, int ms)
{
	(void) right;
	(void) ms;
}

void
destroy(void)
{
	endwin();
}

#ifndef NDEBUG
void *
pre_reload(void)
{
	char *data = malloc(sizeof(calcs) + sizeof(current_idx));
	memcpy(data, &calcs, sizeof(calcs));
	memcpy(data + sizeof(calcs), &current_idx, sizeof(current_idx));
	endwin();
	return data;
}

void
post_reload(void *state)
{
	char *data = state;
	memcpy(&calcs, data, sizeof(calcs));
	memcpy(&current_idx, data + sizeof(calcs), sizeof(current_idx));
	free(data);
	init();
}
#endif