refactor: begin restructuring core code to better encapsulate

This is a first pass towards trying to structure things a bit better, with data generally encapsulated under a single hierarchical tree, rather than lots of globals all over the place. Lots of work is still required.

The plan is that with this and some more work, #291 should become a lot easier to sort.

src/ipc/mod.rs

@@ -3,25 +3,21 @@ pub mod commands;
 pub mod responses;
 mod server;
 
-use std::cell::RefCell;
 use std::path::{Path, PathBuf};
-use std::rc::Rc;
 use tracing::warn;
 
-use crate::GlobalState;
 pub use commands::Command;
 pub use responses::Response;
 
 #[derive(Debug)]
 pub struct Ipc {
     path: PathBuf,
-    global_state: Rc<RefCell<GlobalState>>,
 }
 
 impl Ipc {
     /// Creates a new IPC instance.
     /// This can be used as both a server and client.
-    pub fn new(global_state: Rc<RefCell<GlobalState>>) -> Self {
+    pub fn new() -> Self {
         let ipc_socket_file = std::env::var("XDG_RUNTIME_DIR")
             .map_or_else(|_| PathBuf::from("/tmp"), PathBuf::from)
             .join("ironbar-ipc.sock");
@@ -32,7 +28,6 @@ impl Ipc {
 
         Self {
             path: ipc_socket_file,
-            global_state,
         }
     }