#include <luna/String.h>
#include <sys/utsname.h>
#include <ui/App.h>
#include <ui/Button.h>
#include <ui/Label.h>
#include <ui/Layout.h>

static constexpr ui::Color BACKGROUND_COLOR = ui::Color::from_rgb(89, 89, 89);

Result<int> luna_main(int, char**)
{
    ui::App app;
    TRY(app.init());

    auto* window = TRY(ui::Window::create(ui::Rect { 300, 300, 400, 300 }));
    app.set_main_window(window);

    window->set_title("About");
    window->set_background(BACKGROUND_COLOR);

    utsname info;
    uname(&info);

    auto* main_layout = TRY(window->create_main_widget<ui::VerticalLayout>());
    main_layout->set_layout_settings(ui::Margins { 0, 0, 20, 40 });

    auto* title = TRY(main_layout->add_child_widget<ui::Label>());
    title->set_text("About Luna");
    title->set_font(ui::Font::default_bold_font());

    auto* version_info = TRY(main_layout->add_child_widget<ui::VerticalLayout>());
    version_info->set_layout_settings(ui::Margins { 0, 0, 10, 10 });

    auto* os_release = TRY(version_info->add_child_widget<ui::Label>());
    String os_release_text = TRY(String::format("OS release: %s"_sv, info.release));
    os_release->set_text(os_release_text.view());

    auto* kernel_version = TRY(version_info->add_child_widget<ui::Label>());
    String kernel_version_text = TRY(String::format("Kernel version: %s"_sv, info.version));
    kernel_version->set_text(kernel_version_text.view());

    auto* license = TRY(version_info->add_child_widget<ui::Label>());
    license->set_text("Licensed under the BSD-2-Clause license.");

    return app.run();
}