/* SPDX-License-Identifier: MIT
 * Copyright (c) 2021 KikooDX
 * This file is part of
 * [Painfull Success CG](https://git.sr.ht/~kikoodx/painfull-success-cg),
 * which is MIT licensed. The MIT license requires this copyright notice to be
 * included in all copies and substantial portions of the software. */
#include <gint/display.h>
#include <gint/timer.h>
#include <gint/clock.h>
#include <gint/std/string.h>
#include <stdint.h>
#include <stdbool.h>
#include "conf.h"
#include "input.h"
#include "level.h"
#include "player.h"

void load_level(Level *level, Player *player, uint8_t id) {
	extern Level levels[LEVEL_SIZE];
	memcpy(level->content, levels[id].content, LEVEL_SIZE);
	level->start_pos = levels[id].start_pos;
	player->pos = levels[id].start_pos;
}

int callback(volatile void *arg) {
	volatile bool *has_ticked = arg;
	*has_ticked = true;
	return 0;
}

int main(void) {
	/* Initialize player. */
	Player player = player_init();
	/* Initialize level. */
	Level level = (Level){};
	uint8_t level_id = 0;
	load_level(&level, &player, level_id);
	/* Initialize input. */
	Input input = (Input){};
	input_init(&input);

	/* UPS control. */
	volatile bool has_ticked = true;
	int timer = timer_setup(TIMER_ANY, 1000000/TARGET_UPS, callback, &has_ticked);
	timer_start(timer);

	/* Core loop. */
	while (!input_is_down(&input, K_EXIT)) {
		/* Repeat step event so the UPS is constant. */
		for (uint8_t i = 0; i < TARGET_UPS / TARGET_FPS; i += 1) {
			/* UPS control. */
			while (!has_ticked) sleep();
			has_ticked = false;
			/* Update. */
			input_update(&input);
			/* player_update(&player, &level, &level_id); */
		}
		/* Draw. */
		dclear(C_BLACK);
		/* player_draw(player); */
		level_draw(level);
		dupdate();
	}

	return 1;
}