#include <LibGUI/GApplication.h>
#include <LibGUI/GWindow.h>
#include <LibGUI/GLabel.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GBoxLayout.h>
#include <sys/utsname.h>

int main(int argc, char** argv)
{
    GApplication app(argc, argv);

    auto* window = new GWindow;
    window->set_title("About Serenity");
    Rect window_rect { 0, 0, 240, 120 };
    window_rect.center_within({ 0, 0, 1024, 768 });
    window->set_rect(window_rect);
    window->set_should_exit_event_loop_on_close(true);

    auto* widget = new GWidget;
    window->set_main_widget(widget);
    widget->set_fill_with_background_color(true);
    widget->set_layout(make<GBoxLayout>(Orientation::Vertical));
    widget->layout()->set_margins({ 0, 8, 0, 8 });
    widget->layout()->set_spacing(8);

    auto* icon_label = new GLabel(widget);
    icon_label->set_icon(GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, "/res/icons/Serenity.rgb", { 32, 32 }));
    icon_label->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
    icon_label->set_preferred_size({ 32, 32 });

    auto* label = new GLabel(widget);
    label->set_font(Font::default_bold_font());
    label->set_text("Serenity Operating System");
    label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
    label->set_preferred_size({ 0, 11 });

    utsname uts;
    int rc = uname(&uts);
    ASSERT(rc == 0);

    auto* version_label = new GLabel(widget);
    version_label->set_text(String::format("Version %s", uts.release));
    version_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
    version_label->set_preferred_size({ 0, 11 });

    auto* quit_button = new GButton(widget);
    quit_button->set_caption("Okay");
    quit_button->set_size_policy(SizePolicy::Fixed, SizePolicy::Fixed);
    quit_button->set_preferred_size({ 100, 20 });
    quit_button->on_click = [] (GButton&) {
        GApplication::the().quit(0);
    };

    window->show();
    return app.exec();
}