#include "game.h"
#include <skele/client/input.h>
#include <skele/client/video.h>
#include <skele/clock.h>
#include <skele/fps.h>
#include <skele/skele.h>
#include <stk/stk.h>
#include <stk/stk_log.h>

static uint8_t running = 1;

static void on_signal(void) { running = 0; }

int main(int argc, char *argv[])
{
	skele_video_config_t video_cfg;
	uint64_t last, now, elapsed, accum = 0, last_print = 0;

	skele_clock_init(on_signal);

	if (skele_stk_setup() != SKELE_INIT_SUCCESS)
		return 1;

	if (skele_init() != SKELE_INIT_SUCCESS) {
		skele_stk_teardown();
		return 1;
	}

	video_cfg.render_width = SKELE_DEFAULT_RENDER_WIDTH;
	video_cfg.render_height = SKELE_DEFAULT_RENDER_HEIGHT;
	video_cfg.window_width = 0;
	video_cfg.window_height = 0;
	video_cfg.max_fps = 0;
	video_cfg.flags = SKELE_VIDEO_VSYNC;

	if (skele_video_init(video_cfg) != SKELE_INIT_SUCCESS) {
		skele_stk_teardown();
		skele_shutdown();
		return 1;
	}

	skele_video_set_title("game");

	if (!game_init()) {
		skele_video_shutdown();
		skele_stk_teardown();
		skele_shutdown();
		return 1;
	}

	last = skele_time_ns();

	while (running) {
		if (!skele_input_poll())
			break;

		stk_poll();

		now = skele_time_ns();
		elapsed = now - last;
		accum += elapsed;
		last = now;

		while (accum >= skele_tick_ns) {
			skele_tick();
			accum -= skele_tick_ns;
		}

		skele_video_present();

		if (now - last_print >= 1000000000ULL) {
			stk_log(STK_LOG_INFO,
				"fps=%.1f frame=%.2fms/%.2fms tps=%.1f tick=%lluns/%lluns idle=%lluns",
				skele_fps, skele_frame_time_ms,
				skele_frame_budget_ms, skele_tps,
				(unsigned long long)skele_tick_time_ns,
				(unsigned long long)skele_tick_ns,
				(unsigned long long)skele_tick_idle_ns);
			last_print = now;
		}
	}

	game_shutdown();
	skele_video_shutdown();
	skele_stk_teardown();
	skele_shutdown();
	return 0;
}