package.json

@@ -1,6 +1,6 @@
 {
   "name": "real-debrid-downloader",
-  "version": "1.7.139",
+  "version": "1.7.138",
   "description": "Desktop downloader",
   "main": "build/main/main/main.js",
   "author": "Sucukdeluxe",

src/main/download-manager.ts

@@ -1578,17 +1578,6 @@ export class DownloadManager extends EventEmitter {
     this.settingsSnapshotCacheAt = 0;
   }
 
-  /** State-diffing tracking: hashes of items/packages as last sent to the
-   *  renderer. Allows getSnapshotForEmit() to return only changed entries
-   *  plus a list of removed IDs, drastically cutting IPC payload size for
-   *  large queues (5000+ items) where most items are idle between emits. */
-  private lastEmittedItemHashes = new Map<string, string>();
-  private lastEmittedPackageHashes = new Map<string, string>();
-  private firstEmitDone = false;
-  private lastFullEmitAt = 0;
-  /** Force a full resync every 30 seconds to recover from any potential drift. */
-  private static readonly FULL_RESYNC_INTERVAL_MS = 30000;
-
   private lastPersistAt = 0;
   private lastSettingsPersistAt = 0;
   private appSessionStartedAt = 0;
@@ -2030,104 +2019,6 @@ export class DownloadManager extends EventEmitter {
     this.emitState();
   }
 
-  /** Compact hash of the visible/mutable item fields. Two items with identical
-   *  hashes are considered "no visible change" and can be excluded from delta
-   *  emits. Field selection covers everything ItemRow/PackageCard render. */
-  private buildItemHash(item: DownloadItem): string {
-    return `${item.updatedAt}|${item.status}|${item.progressPercent}|${item.speedBps}|${item.downloadedBytes}|${item.totalBytes}|${item.retries}|${item.fullStatus || ""}|${item.fileName}|${item.providerLabel || ""}|${item.provider || ""}|${item.onlineStatus || ""}|${item.lastError || ""}`;
-  }
-
-  /** Compact hash of the visible/mutable package fields. */
-  private buildPackageHash(pkg: PackageEntry): string {
-    return `${pkg.updatedAt}|${pkg.status}|${pkg.name}|${pkg.enabled ? 1 : 0}|${pkg.cancelled ? 1 : 0}|${pkg.priority || ""}|${pkg.itemIds.length}|${pkg.postProcessLabel || ""}`;
-  }
-
-  /** Returns a snapshot suitable for IPC emit. On the first emit (or every
-   *  30s for safety, or when explicitly forced), returns a "full" payload
-   *  containing all items/packages. Otherwise returns a "delta" with only
-   *  items/packages that changed since the last emit, plus removed IDs. */
-  public getSnapshotForEmit(forceFull = false): UiSnapshot {
-    const base = this.getSnapshot();
-    const now = nowMs();
-    const needsFullResync = !this.firstEmitDone || forceFull
-      || (now - this.lastFullEmitAt) > DownloadManager.FULL_RESYNC_INTERVAL_MS;
-
-    if (needsFullResync) {
-      // Refresh tracking state to current snapshot
-      this.lastEmittedItemHashes.clear();
-      this.lastEmittedPackageHashes.clear();
-      for (const id in base.session.items) {
-        this.lastEmittedItemHashes.set(id, this.buildItemHash(base.session.items[id]));
-      }
-      for (const id in base.session.packages) {
-        this.lastEmittedPackageHashes.set(id, this.buildPackageHash(base.session.packages[id]));
-      }
-      this.firstEmitDone = true;
-      this.lastFullEmitAt = now;
-      return { ...base, payloadKind: "full" };
-    }
-
-    // Build deltas: include only items/packages whose hash changed since last emit
-    const changedItems: Record<string, DownloadItem> = {};
-    const removedItemIds: string[] = [];
-    const seenItemIds = new Set<string>();
-    let itemChangeCount = 0;
-    for (const id in base.session.items) {
-      seenItemIds.add(id);
-      const item = base.session.items[id];
-      const newHash = this.buildItemHash(item);
-      const oldHash = this.lastEmittedItemHashes.get(id);
-      if (oldHash !== newHash) {
-        changedItems[id] = item;
-        this.lastEmittedItemHashes.set(id, newHash);
-        itemChangeCount += 1;
-      }
-    }
-    // Detect removed items
-    for (const id of this.lastEmittedItemHashes.keys()) {
-      if (!seenItemIds.has(id)) {
-        removedItemIds.push(id);
-      }
-    }
-    for (const id of removedItemIds) {
-      this.lastEmittedItemHashes.delete(id);
-    }
-
-    const changedPackages: Record<string, PackageEntry> = {};
-    const removedPackageIds: string[] = [];
-    const seenPackageIds = new Set<string>();
-    for (const id in base.session.packages) {
-      seenPackageIds.add(id);
-      const pkg = base.session.packages[id];
-      const newHash = this.buildPackageHash(pkg);
-      const oldHash = this.lastEmittedPackageHashes.get(id);
-      if (oldHash !== newHash) {
-        changedPackages[id] = pkg;
-        this.lastEmittedPackageHashes.set(id, newHash);
-      }
-    }
-    for (const id of this.lastEmittedPackageHashes.keys()) {
-      if (!seenPackageIds.has(id)) {
-        removedPackageIds.push(id);
-      }
-    }
-    for (const id of removedPackageIds) {
-      this.lastEmittedPackageHashes.delete(id);
-    }
-
-    return {
-      ...base,
-      session: {
-        ...base.session,
-        items: changedItems,
-        packages: changedPackages,
-      },
-      payloadKind: "delta",
-      removedItemIds,
-      removedPackageIds,
-    };
-  }
-
   public getSnapshot(): UiSnapshot {
     const now = nowMs();
     this.ensureProviderDailyUsageFresh(now, true);
@@ -5389,7 +5280,7 @@ export class DownloadManager extends EventEmitter {
           this.stateEmitTimer = null;
         }
         this.lastStateEmitAt = now;
-        this.emit("state", this.getSnapshotForEmit());
+        this.emit("state", this.getSnapshot());
         return;
       }
       // Too soon — replace any pending timer with a shorter forced-emit timer
@@ -5400,7 +5291,7 @@ export class DownloadManager extends EventEmitter {
       this.stateEmitTimer = setTimeout(() => {
         this.stateEmitTimer = null;
         this.lastStateEmitAt = nowMs();
-        this.emit("state", this.getSnapshotForEmit());
+        this.emit("state", this.getSnapshot());
       }, MIN_FORCE_GAP_MS - sinceLastEmit);
       return;
     }
@@ -5420,7 +5311,7 @@ export class DownloadManager extends EventEmitter {
     this.stateEmitTimer = setTimeout(() => {
       this.stateEmitTimer = null;
       this.lastStateEmitAt = nowMs();
-      this.emit("state", this.getSnapshotForEmit());
+      this.emit("state", this.getSnapshot());
     }, emitDelay);
   }
 

src/renderer/App.tsx

@@ -1532,11 +1532,6 @@ export function App(): ReactElement {
   const settingsDraftRevisionRef = useRef(0);
   const panelDirtyRevisionRef = useRef(0);
   const latestStateRef = useRef<UiSnapshot | null>(null);
-  // Master state used to apply incoming delta payloads. The wire format from
-  // the main process sends only changed items/packages (with payloadKind="delta")
-  // most of the time and a full snapshot every 30s for safety. Without this
-  // master, we'd only see the changed slice each emit.
-  const masterSnapshotRef = useRef<UiSnapshot | null>(null);
   const snapshotRef = useRef(snapshot);
   snapshotRef.current = snapshot;
   const tabRef = useRef(tab);
@@ -1868,8 +1863,6 @@ export function App(): ReactElement {
       if (!mountedRef.current) {
         return;
       }
-      // Seed the master snapshot — incoming delta payloads will merge into this.
-      masterSnapshotRef.current = state;
       setSnapshot(state);
       if (state.settings.columnOrder?.length > 0) {
         setColumnOrder(state.settings.columnOrder);
@@ -1890,36 +1883,11 @@ export function App(): ReactElement {
     }).catch((error) => {
       showToast(`Snapshot konnte nicht geladen werden: ${String(error)}`, 2800);
     });
-    unsubscribe = window.rd.onStateUpdate((wireState) => {
+    unsubscribe = window.rd.onStateUpdate((state) => {
-      // Merge delta payloads into the master snapshot. Full payloads replace
+      latestStateRef.current = state;
-      // the master entirely (initial sync + periodic 30s resync).
-      let merged: UiSnapshot;
-      const master = masterSnapshotRef.current;
-      if (wireState.payloadKind === "delta" && master) {
-        const newItems: Record<string, DownloadItem> = { ...master.session.items, ...wireState.session.items };
-        if (wireState.removedItemIds && wireState.removedItemIds.length > 0) {
-          for (const id of wireState.removedItemIds) delete newItems[id];
-        }
-        const newPackages: Record<string, PackageEntry> = { ...master.session.packages, ...wireState.session.packages };
-        if (wireState.removedPackageIds && wireState.removedPackageIds.length > 0) {
-          for (const id of wireState.removedPackageIds) delete newPackages[id];
-        }
-        merged = {
-          ...wireState,
-          session: {
-            ...wireState.session,
-            items: newItems,
-            packages: newPackages,
-          },
-        };
-      } else {
-        merged = wireState;
-      }
-      masterSnapshotRef.current = merged;
-      latestStateRef.current = merged;
       if (stateFlushTimerRef.current) { return; }
 
-      const itemCount = Object.keys(merged.session.items).length;
+      const itemCount = Object.keys(state.session.items).length;
       let flushDelay = itemCount >= 1500
         ? 900
         : itemCount >= 700
@@ -1927,7 +1895,7 @@ export function App(): ReactElement {
           : itemCount >= 250
             ? 400
             : 150;
-      if (!merged.session.running) {
+      if (!state.session.running) {
         flushDelay = Math.min(flushDelay, 200);
       }
       if (activeTabRef.current !== "downloads") {

src/shared/types.ts

@@ -230,15 +230,6 @@ export interface UiSnapshot {
   clipboardActive: boolean;
   reconnectSeconds: number;
   packageSpeedBps: Record<string, number>;
-  /** When set to "delta", session.items contains ONLY items that changed since
-   *  the last emit, and removedItemIds lists items that were removed. The
-   *  renderer must merge these into its master state. When undefined or "full",
-   *  session.items is the complete set (initial sync or periodic resync). */
-  payloadKind?: "full" | "delta";
-  /** Item IDs to remove from the renderer's master state when payloadKind="delta". */
-  removedItemIds?: string[];
-  /** Package IDs to remove from the renderer's master state when payloadKind="delta". */
-  removedPackageIds?: string[];
 }
 
 export interface AddLinksPayload {