- tauri 设计完成

src-tauri/src/events.rs

@@ -0,0 +1,29 @@
+use crate::models::ServerEvent;
+use once_cell::sync::Lazy;
+use tokio::sync::broadcast;
+
+/// SSE 事件管理器
+pub struct EventManager {
+    tx: broadcast::Sender<String>,
+}
+
+impl EventManager {
+    pub fn new() -> Self {
+        let (tx, _) = broadcast::channel(64);
+        Self { tx }
+    }
+
+    /// 广播事件给所有 SSE 客户端
+    pub fn broadcast(&self, event: &ServerEvent) {
+        if let Ok(json) = serde_json::to_string(event) {
+            let _ = self.tx.send(json);
+        }
+    }
+
+    /// 获取广播接收器
+    pub fn subscribe(&self) -> broadcast::Receiver<String> {
+        self.tx.subscribe()
+    }
+}
+
+pub static EVENTS: Lazy<EventManager> = Lazy::new(EventManager::new);