Fix updater being corrupted by multiple attempts to download

frontend/src/components/DeckyState.tsx

@@ -8,6 +8,7 @@ interface PublicDeckyState {
   activePlugin: Plugin | null;
   updates: PluginUpdateMapping | null;
   hasLoaderUpdate?: boolean;
+  isLoaderUpdating: boolean;
 }
 
 export class DeckyState {
@@ -15,6 +16,7 @@ export class DeckyState {
   private _activePlugin: Plugin | null = null;
   private _updates: PluginUpdateMapping | null = null;
   private _hasLoaderUpdate: boolean = false;
+  private _isLoaderUpdating: boolean = false;
 
   public eventBus = new EventTarget();
 
@@ -24,6 +26,7 @@ export class DeckyState {
       activePlugin: this._activePlugin,
       updates: this._updates,
       hasLoaderUpdate: this._hasLoaderUpdate,
+      isLoaderUpdating: this._isLoaderUpdating,
     };
   }
 
@@ -52,6 +55,11 @@ export class DeckyState {
     this.notifyUpdate();
   }
 
+  setIsLoaderUpdating(isUpdating: boolean) {
+    this._isLoaderUpdating = isUpdating;
+    this.notifyUpdate();
+  }
+
   private notifyUpdate() {
     this.eventBus.dispatchEvent(new Event('update'));
   }

frontend/src/components/settings/pages/general/Updater.tsx

@@ -9,6 +9,8 @@ export default function UpdaterSettings() {
   const [updateProgress, setUpdateProgress] = useState<number>(-1);
   const [reloading, setReloading] = useState<boolean>(false);
   const [checkingForUpdates, setCheckingForUpdates] = useState<boolean>(false);
+  const [loaderUpdating, setLoaderUpdating] = useState<boolean>(false);
+
   useEffect(() => {
     (async () => {
       const res = (await callUpdaterMethod('get_version')) as { result: VerInfo };
@@ -36,7 +38,7 @@ export default function UpdaterSettings() {
     >
       {updateProgress == -1 ? (
         <DialogButton
-          disabled={!versionInfo?.updatable || checkingForUpdates}
+          disabled={!versionInfo?.updatable || checkingForUpdates || loaderUpdating}
           onClick={
             !versionInfo?.remote || versionInfo?.remote?.tag_name == versionInfo?.current
               ? async () => {
@@ -49,10 +51,12 @@ export default function UpdaterSettings() {
                   window.DeckyUpdater = {
                     updateProgress: (i) => {
                       setUpdateProgress(i);
+                      setLoaderUpdating(true);
                     },
                     finish: async () => {
                       setUpdateProgress(0);
                       setReloading(true);
+                      setLoaderUpdating(false);
                       await finishUpdate();
                     },
                   };