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use serde::{Deserialize, Serialize}; use std::collections::VecDeque; use std::sync::{Arc, Mutex}; #[derive(Debug, Clone, Serialize, Deserialize)] pub enum MessageKind { Print, Warning, } #[derive(Debug, Clone, Serialize, Deserialize)] pub struct Message { pub kind: MessageKind, pub msg: String, } #[derive(Clone, Debug)] pub struct MessageQueue { messages: Arc<Mutex<VecDeque<Message>>>, } impl MessageQueue { pub fn new() -> Self { Self { messages: Arc::new(Mutex::new(VecDeque::new())), } } pub fn next(&self) -> Option<Message> { if let Ok(mut messages) = self.messages.lock() { messages.pop_front() } else { None } } pub fn push(&self, kind: MessageKind, msg: String) { let mut messages = self.messages.lock().unwrap(); messages.push_back(Message { kind, msg }); } pub fn extend<T: IntoIterator<Item = Message>>(&self, iter: T) { let mut messages = self.messages.lock().unwrap(); messages.extend(iter) } } impl Default for MessageQueue { fn default() -> Self { Self::new() } }