some code cleanup

examples/Cargo.lock

@@ -4344,6 +4344,7 @@ dependencies = [
  "ctrlc",
  "eframe",
  "egui",
+ "secp256k1 0.26.0",
  "serde",
  "serde_json",
  "tokio",

examples/tic-tac-toe-gui/src/main.rs

@@ -1,18 +1,13 @@
 use eframe::egui;
-use secp256k1::SecretKey;
 use serde::{Deserialize, Serialize};
-use std::cell::OnceCell;
 use std::str::from_utf8;
-use std::sync::Arc;
+use std::sync::{Arc, Mutex};
-use std::sync::Mutex;
+use std::time::{SystemTime, Duration};
-use std::str::FromStr;
-use std::time::SystemTime;
-use std::time::{Duration, Instant};
 
 use tokio::sync::mpsc;
 use waku::{
-    waku_new, Encoding, Event, Initialized, LibwakuResponse, Multiaddr, Running, WakuContentTopic,
+    waku_new, Encoding, Event, LibwakuResponse, WakuContentTopic,
-    WakuMessage, WakuNodeConfig, WakuNodeContext, WakuNodeHandle,
+    WakuMessage, WakuNodeConfig, WakuNodeHandle,
 };
 
 #[derive(Serialize, Deserialize, PartialEq, Debug, Copy, Clone)]
@@ -28,13 +23,6 @@ struct GameState {
     moves_left: usize,
 }
 
-#[derive(Clone)]
-struct MoveMessage {
-    row: usize,
-    col: usize,
-    player: Player,
-}
-
 struct TicTacToeApp {
     game_state: Arc<Mutex<GameState>>,
     waku: WakuNodeHandle,
@@ -95,7 +83,7 @@ impl TicTacToeApp {
         };
 
         // Establish a closure that handles the incoming messages
-        self.waku.ctx.waku_set_event_callback(my_closure);
+        self.waku.ctx.waku_set_event_callback(my_closure).expect("set event call back working");
 
         // Subscribe to desired topic
         self.waku.relay_subscribe(&self.game_topic.to_string()).expect("waku should subscribe");
@@ -235,7 +223,6 @@ impl eframe::App for TicTacToeApp {
             ui.label(format!("You are playing as: {:?}", player_role));
 
             // Draw the game board and handle the game state
-            let text_size = 32.0;
             let board_size = ui.available_size();
             let cell_size = board_size.x / 4.0;
 

waku-bindings/src/node/events.rs

@@ -59,7 +59,7 @@ impl WakuNodeContext {
     /// which are used to react to asynchronous events in Waku
     pub fn waku_set_event_callback<F: FnMut(LibwakuResponse) + 'static + Sync + Send>(
         &self,
-        mut closure: F,
+        closure: F,
     ) -> Result<(), String> {
         if let Ok(mut boxed_closure) = self.msg_observer.lock() {
             *boxed_closure = Box::new(closure);