/* MAJE_LDLIB=-lX11 */

#define _POSIX_C_SOURCE 200809L
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <X11/Xlib.h>

int main(int argc, char *argv[])
{
	int c = 0;
	while ((c = getopt(argc, argv, "")) != -1) {
		switch (c) {
		default:
			return 1;
		}
	}

	Display *dpy = XOpenDisplay("");
	if (dpy == NULL) {
		fprintf(stderr, "xbar: can't open display\n");
		return 1;
	}

	int screen = DefaultScreen(dpy);

	Colormap cmap = XDefaultColormap(dpy, screen);
	XColor bg;
	if (XParseColor(dpy, cmap, "black", &bg) == 0) {
		fprintf(stderr, "couldn't find black\n");
		bg.pixel = BlackPixel(dpy, 0);
	} else if (XAllocColor(dpy, cmap, &bg) == 0) {
		fprintf(stderr, "couldn't allocate black\n");
		bg.pixel = BlackPixel(dpy, 0);
	}

	XColor fg;
	if (XParseColor(dpy, cmap, "white", &fg) == 0) {
		fprintf(stderr, "couldn't find white\n");
		fg.pixel = WhitePixel(dpy, 0);
	} else if (XAllocColor(dpy, cmap, &fg) == 0) {
		fprintf(stderr, "couldn't allocate white\n");
		fg.pixel = WhitePixel(dpy, 0);
	}

	int width = DisplayWidth(dpy, screen);
	int height = 20;

	Window win = XCreateSimpleWindow(dpy, XDefaultRootWindow(dpy),
		0, 0, width, height, 0, 0, bg.pixel);
	XStoreName(dpy, win, "xbar");
	XSelectInput(dpy, win, ExposureMask | KeyPressMask);
	XMapWindow(dpy, win);
	XMoveWindow(dpy, win, 0, 0);

	XSetForeground(dpy, DefaultGC(dpy, screen), fg.pixel);

	for (;;) {
		XEvent e;
		XNextEvent(dpy, &e);
		switch (e.type) {
		case Expose:
			XDrawString(dpy, win, DefaultGC(dpy, screen), 10, 10,
				"hello", strlen("hello"));
			break;

		case KeyPress:
			printf("keypress\n");
			break;

		default:
			break;
		}
	}

	return 0;
}