Improve reliability of state saving

Mechanical-Advantage · Feb 9, 2024 · c6438ff · c6438ff
1 parent 8bb5b8e
commit c6438ff
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Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/src/main/StateTracker.ts b/src/main/StateTracker.ts
@@ -15,6 +15,10 @@ export default class StateTracker {
   private satelliteUUIDs: { [id: number]: string } = {};
 
   constructor() {
+    let lastState: ApplicationState | null = null;
+    if (fs.existsSync(STATE_FILENAME)) {
+      lastState = jsonfile.readFileSync(STATE_FILENAME);
+    }
     setInterval(() => {
       let state: ApplicationState = { hubs: [], satellites: [] };
       Object.keys(this.rendererStates).forEach((windowId) => {
@@ -43,7 +47,10 @@ export default class StateTracker {
           });
         }
       });
-      jsonfile.writeFileSync(STATE_FILENAME, state);
+      if (state.hubs.length > 0 && JSON.stringify(state) !== JSON.stringify(lastState)) {
+        jsonfile.writeFileSync(STATE_FILENAME, state);
+        lastState = state;
+      }
     }, this.SAVE_PERIOD_MS);
   }
 

diff --git a/src/main/main.ts b/src/main/main.ts
@@ -2449,7 +2449,7 @@ app.whenReady().then(() => {
   setupMenu();
   let applicationState = stateTracker.getSavedApplicationState();
   let targetWindow: BrowserWindow | null = null;
-  if (applicationState === null) {
+  if (applicationState === null || applicationState.hubs.length === 0) {
     targetWindow = createHubWindow();
   } else {
     applicationState.hubs.forEach((hubState, index) => {