feat: exit when ws connection dropped

When the websocket connection drops, previous behaviour was that the
infinite loop tried to catch it and retry the connection. this was
spotty (probably because of wifi) so to fix this change to so it quits
and then let systemd restart it

Author: mavi0

control/src/main.rs

@@ -33,15 +33,18 @@ fn main() -> Result<(), Box<dyn Error>> {
     let (frame_recv, mut frame_send) =
         single_value_channel::channel_starting_with(image::DynamicImage::new_rgb8(120, 80));
 
-    std::thread::spawn(move || sender_thread(frame_recv, scene));
-
-    loop {
-        let r = inner(&opt, &mut frame_send);
-
-        println!("Inner loop failed: {:#?}", r);
-
-        std::thread::sleep(Duration::from_secs(5));
+    let sender_handle = std::thread::spawn(move || sender_thread(frame_recv, scene));
+
+    // Single attempt to connect and process messages
+    let result = inner(&opt, &mut frame_send);
+    
+    // If the connection drops or fails, print the error and exit
+    if let Err(e) = result {
+        eprintln!("WebSocket connection failed: {:#?}", e);
     }
+    
+    // Exit the program instead of retrying
+    std::process::exit(1)
 }
 
 fn sender_thread(
@@ -87,5 +90,6 @@ fn inner(
         frame_chan.update(frame)?;
     }
 
-    Ok(())
+    // If we exit the loop (connection closed), return an error
+    Err("WebSocket connection closed".into())
 }