#include "saverwidget.h"

#include <QApplication>
#include <QMessageBox>
#include <QWindow>
#include <QLabel>
#include <QDebug>
#include <QX11Info>

#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>

//#include <X11/Xlib.h>
#include "vroot.h"

static pid_t childId;

static void __attribute((noreturn)) sh(int)
{
    // Clean up if xscreensaver kills us (relay to forked child)
    kill(childId, SIGTERM);
    exit(0);
}

int main(int argc, char **argv)
{
    // Fork once and wait for child so SIGSTOP won't affect us and the counter keeps going
    // while the auth dialog is up
    childId = fork();
    if (childId != 0) {
        signal(SIGTERM, sh);
        signal(SIGINT, sh);
        int status;
        for (;;) {
            pid_t ret = waitpid(childId, &status, 0);
            if (ret == childId)
                return 0;
            if (errno == EINTR)
                continue;
            fprintf(stderr, "errno=%d, bye\n", errno);
            return 1;
        }
    }
    for (int i = 0; i < argc; ++i) {
        qDebug() << "Argument" << i << "=" << argv[i];
    }
    QApplication app(argc, argv);
    Display *dpy = QX11Info::display();
    if (dpy == nullptr) {
        fprintf(stderr, "No display");
        return 1;
    }
    Window win = DefaultRootWindow(dpy);
    QWindow *xwin = QWindow::fromWinId(win);
    qDebug() << "Foreign window id is" << win << "pointer is" << xwin;
    //QWindow *qwin = new QWindow(xwin);
    //QWidget *w = QWidget::createWindowContainer(qwin);
    SaverWidget *w = new SaverWidget(win);
    w->winId();
    qDebug() << "New Qt window is" << w << "window handle is" << w->windowHandle();
    w->windowHandle()->setParent(xwin);
    XWindowAttributes attr;
    // Because QWindow is broken and doesn't report any geometry for foreign windows
    if (XGetWindowAttributes(dpy, win, &attr)) {
        qDebug() << "Query:" << attr.width << attr.height;
        w->setGeometry(0, 0, attr.width, attr.height);
    }
    w->show();
	app.exec();
	return 0;
}