feat: 支持 WatchDog

src/config/schema/mod.rs

@@ -10,6 +10,7 @@ mod computer_use;
 mod hid;
 mod otg_network;
 mod stream;
+mod watchdog;
 mod web;
 
 pub use atx::*;
@@ -18,6 +19,7 @@ pub use computer_use::*;
 pub use hid::*;
 pub use otg_network::*;
 pub use stream::*;
+pub use watchdog::*;
 pub use web::*;
 
 #[typeshare]
@@ -41,6 +43,7 @@ pub struct AppConfig {
     pub vnc: VncConfig,
     pub rtsp: RtspConfig,
     pub redfish: RedfishConfig,
+    pub watchdog: WatchdogConfig,
 }
 
 impl AppConfig {
@@ -57,3 +60,18 @@ impl AppConfig {
         self.enforce_invariants();
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn missing_watchdog_config_defaults_to_disabled() {
+        let value = serde_json::to_value(AppConfig::default()).unwrap();
+        let mut object = value.as_object().unwrap().clone();
+        object.remove("watchdog");
+
+        let config: AppConfig = serde_json::from_value(object.into()).unwrap();
+        assert!(!config.watchdog.enabled);
+    }
+}

src/config/schema/watchdog.rs

@@ -0,0 +1,9 @@
+use serde::{Deserialize, Serialize};
+use typeshare::typeshare;
+
+#[typeshare]
+#[derive(Debug, Clone, Default, Serialize, Deserialize)]
+#[serde(default)]
+pub struct WatchdogConfig {
+    pub enabled: bool,
+}

src/config/store.rs

@@ -154,4 +154,24 @@ mod tests {
         assert!(config.initialized);
         assert_eq!(config.web.http_port, 9000);
     }
+
+    #[tokio::test]
+    async fn failed_watchdog_persistence_does_not_update_cache() {
+        let dir = tempdir().unwrap();
+        let db_path = dir.path().join("test.db");
+        let db = DatabasePool::new(&db_path).await.unwrap();
+        db.init_schema().await.unwrap();
+        let store = ConfigStore::new(db.clone_pool()).unwrap();
+        store.load().await.unwrap();
+
+        sqlx::query("DROP TABLE config")
+            .execute(&db.clone_pool())
+            .await
+            .unwrap();
+        assert!(store
+            .update(|config| config.watchdog.enabled = true)
+            .await
+            .is_err());
+        assert!(!store.get().watchdog.enabled);
+    }
 }