use std::cell::RefCell;
use std::cmp::max;
use std::collections::HashMap;
use std::os::unix::io::AsRawFd;
use std::path::PathBuf;
use std::process::Command;
use std::rc::Rc;
use std::sync::{Arc, Mutex};
use std::time::Duration;
use std::{env, thread};
use anyhow::Context;
use sd_notify::NotifyState;
use smithay::backend::allocator::dmabuf::Dmabuf;
use smithay::backend::allocator::Fourcc;
use smithay::backend::renderer::element::surface::{
render_elements_from_surface_tree, WaylandSurfaceRenderElement,
};
use smithay::backend::renderer::element::texture::{TextureBuffer, TextureRenderElement};
use smithay::backend::renderer::element::utils::{Relocate, RelocateRenderElement};
use smithay::backend::renderer::element::{
render_elements, AsRenderElements, Element, Kind, RenderElement, RenderElementStates,
};
use smithay::backend::renderer::gles::{GlesMapping, GlesRenderer, GlesTexture};
use smithay::backend::renderer::{Bind, ExportMem, Frame, ImportAll, Offscreen, Renderer};
use smithay::desktop::utils::{
send_dmabuf_feedback_surface_tree, send_frames_surface_tree,
surface_presentation_feedback_flags_from_states, take_presentation_feedback_surface_tree,
OutputPresentationFeedback,
};
use smithay::desktop::{
layer_map_for_output, LayerSurface, PopupManager, Space, Window, WindowSurfaceType,
};
use smithay::input::keyboard::XkbConfig;
use smithay::input::pointer::{CursorImageAttributes, CursorImageStatus, MotionEvent};
use smithay::input::{Seat, SeatState};
use smithay::output::Output;
use smithay::reexports::calloop::generic::Generic;
use smithay::reexports::calloop::timer::{TimeoutAction, Timer};
use smithay::reexports::calloop::{self, Idle, Interest, LoopHandle, LoopSignal, Mode, PostAction};
use smithay::reexports::nix::libc::CLOCK_MONOTONIC;
use smithay::reexports::wayland_protocols::xdg::shell::server::xdg_toplevel::WmCapabilities;
use smithay::reexports::</