#include "common.h"
#include <signal.h>
#include <time.h>

char *va(const char *fmt, ...)
{
	va_list vl;
	static char buffer[4096];

	va_start(vl, fmt);
	vsnprintf(buffer, sizeof(buffer), fmt, vl);
	va_end(vl);

	return buffer;
}

int64_t get_time(void)
{
	struct timespec ts;
	clock_gettime(CLOCK_MONOTONIC, &ts);
	return ts.tv_sec * 1000000000 + ts.tv_nsec;
}

int main(void)
{
	int rv = 0;
	r_window *first_window;
	phy_sim sim;
	SDL_Thread *sim_thread;

	if (r_init()) {
		con_printf("fatal error: renderer initialization failed\n");
		rv = 1;
		goto quit;
	}

	if (ui_init()) {
		con_printf("fatal error: UI initialization failed\n");
		rv = 1;
		goto quit;
	}

	signal(SIGINT, SIG_DFL);
	signal(SIGTERM, SIG_DFL);

	first_window = r_window_create();
	if (!first_window) {
		con_printf("fatal error: couldn't open first window\n");
		rv = 1;
		goto quit;
	}

	ui_renderer_window_register(first_window);

	if (phy_sim_create(&sim)) {
		con_printf("fatal error: phy_sim_create failed\n");
		rv = 1;
		goto quit;
	}

	sim_thread = SDL_CreateThread((SDL_ThreadFunction)phy_thread,
	                              "phy_thread", &sim);
	if (!sim_thread) {
		con_printf("fatal error: SDL_CreateThread failed: %s\n",
		           SDL_GetError());
		rv = 1;
		goto quit;
	}

	while (1) {
		SDL_Event event;

		while (SDL_PollEvent(&event)) {
			if (event.type == SDL_QUIT)
				goto quit;
			else
				ui_event(&event);
		}

		ui_draw(&sim);
	}

quit:
	con_printf("main: exitting, rv=%i\n", rv);
  	phy_sim_destroy(&sim);
	ui_quit();
	r_quit();
	SDL_Quit();
	return rv;
}