Improve error handling for events and in general

src/command_utils/events.rs

@@ -0,0 +1,40 @@
+use telnet::Telnet;
+use crate::commands;
+use crate::models::{Event, EventType};
+use crate::response::Response;
+
+pub fn register_events(connection: &mut Telnet, events: Vec<EventType>) -> Result<(), String> {
+    for event in events {
+        if commands::clientnotifyregister(connection, 1, event).is_err() {
+            return Err(String::from("Failed to register event listener."));
+        }
+    }
+    Ok(())
+}
+
+pub fn handle_event_response(connection: &mut Telnet, response: Response) {
+    if let Response::Event(event_type, params) = response {
+
+        let event = Event::new(connection, event_type, params);
+        match serde_json::to_string(&event) {
+            Ok(json) => println!("{}", json),
+            Err(err) => {
+                // TODO: Handle serialization error
+                eprintln!("Serialization error: {}", err);
+            }
+        }
+
+    }
+}
+
+pub fn loop_response_reader(connection: &mut Telnet) {
+    loop {
+        match commands::read_response(connection, true, String::new()) {
+            Ok(response) => handle_event_response(connection, response),
+            Err(_) => {
+                // print error?
+                return;
+            }
+        }
+    }
+}