feat: add local notifications management and UI integration

src/main/services/index.ts

@@ -20,3 +20,4 @@ export * from "./lock";
 export * from "./decky-plugin";
 export * from "./user";
 export * from "./download-sources-checker";
+export * from "./notifications/local-notifications";

src/main/services/notifications/index.ts

@@ -16,6 +16,7 @@ import { restartAndInstallUpdate } from "@main/events/autoupdater/restart-and-in
 import { SystemPath } from "../system-path";
 import { getThemeSoundPath } from "@main/helpers";
 import { processProfileImage } from "@main/events/profile/process-profile-image";
+import { LocalNotificationManager } from "./local-notifications";
 
 const getStaticImage = async (path: string) => {
   return processProfileImage(path, "jpg")
@@ -78,37 +79,59 @@ export const publishDownloadCompleteNotification = async (game: Game) => {
     }
   );
 
+  const title = t("download_complete", { ns: "notifications" });
+  const body = t("game_ready_to_install", {
+    ns: "notifications",
+    title: game.title,
+  });
+
   if (userPreferences?.downloadNotificationsEnabled) {
     new Notification({
-      title: t("download_complete", {
-        ns: "notifications",
-      }),
-      body: t("game_ready_to_install", {
-        ns: "notifications",
-        title: game.title,
-      }),
+      title,
+      body,
       icon: await downloadImage(game.iconUrl),
     }).show();
   }
+
+  // Create local notification
+  await LocalNotificationManager.createNotification(
+    "DOWNLOAD_COMPLETE",
+    title,
+    body,
+    {
+      pictureUrl: game.iconUrl,
+      url: `/game/${game.shop}/${game.objectId}`,
+    }
+  );
 };
 
 export const publishNotificationUpdateReadyToInstall = async (
   version: string
 ) => {
+  const title = t("new_update_available", {
+    ns: "notifications",
+    version,
+  });
+  const body = t("restart_to_install_update", {
+    ns: "notifications",
+  });
+
   new Notification({
-    title: t("new_update_available", {
-      ns: "notifications",
-      version,
-    }),
-    body: t("restart_to_install_update", {
-      ns: "notifications",
-    }),
+    title,
+    body,
     icon: trayIcon,
   })
     .on("click", () => {
       restartAndInstallUpdate();
     })
     .show();
+
+  // Create local notification
+  await LocalNotificationManager.createNotification(
+    "UPDATE_AVAILABLE",
+    title,
+    body
+  );
 };
 
 export const publishNewFriendRequestNotification = async (
@@ -181,14 +204,27 @@ export const publishCombinedNewAchievementNotification = async (
 };
 
 export const publishExtractionCompleteNotification = async (game: Game) => {
+  const title = t("extraction_complete", { ns: "notifications" });
+  const body = t("game_extracted", {
+    ns: "notifications",
+    title: game.title,
+  });
+
   new Notification({
-    title: t("extraction_complete", { ns: "notifications" }),
-    body: t("game_extracted", {
-      ns: "notifications",
-      title: game.title,
-    }),
+    title,
+    body,
     icon: trayIcon,
   }).show();
+
+  // Create local notification
+  await LocalNotificationManager.createNotification(
+    "EXTRACTION_COMPLETE",
+    title,
+    body,
+    {
+      url: `/game/${game.shop}/${game.objectId}`,
+    }
+  );
 };
 
 export const publishNewAchievementNotification = async (info: {

src/main/services/notifications/local-notifications.ts

@@ -0,0 +1,99 @@
+import { localNotificationsSublevel } from "@main/level";
+import { WindowManager } from "../window-manager";
+import type { LocalNotification, LocalNotificationType } from "@types";
+import crypto from "node:crypto";
+
+export class LocalNotificationManager {
+  private static generateId(): string {
+    return crypto.randomBytes(8).toString("hex");
+  }
+
+  static async createNotification(
+    type: LocalNotificationType,
+    title: string,
+    description: string,
+    options?: {
+      pictureUrl?: string | null;
+      url?: string | null;
+    }
+  ): Promise<LocalNotification> {
+    const id = this.generateId();
+    const notification: LocalNotification = {
+      id,
+      type,
+      title,
+      description,
+      pictureUrl: options?.pictureUrl ?? null,
+      url: options?.url ?? null,
+      isRead: false,
+      createdAt: new Date().toISOString(),
+    };
+
+    await localNotificationsSublevel.put(id, notification);
+
+    // Notify renderer about new notification
+    if (WindowManager.mainWindow) {
+      WindowManager.mainWindow.webContents.send(
+        "on-local-notification-created",
+        notification
+      );
+    }
+
+    return notification;
+  }
+
+  static async getNotifications(): Promise<LocalNotification[]> {
+    const notifications: LocalNotification[] = [];
+
+    for await (const [, value] of localNotificationsSublevel.iterator()) {
+      notifications.push(value);
+    }
+
+    // Sort by createdAt descending
+    return notifications.sort(
+      (a, b) =>
+        new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime()
+    );
+  }
+
+  static async getUnreadCount(): Promise<number> {
+    let count = 0;
+
+    for await (const [, value] of localNotificationsSublevel.iterator()) {
+      if (!value.isRead) {
+        count++;
+      }
+    }
+
+    return count;
+  }
+
+  static async markAsRead(id: string): Promise<void> {
+    const notification = await localNotificationsSublevel.get(id);
+    if (notification) {
+      notification.isRead = true;
+      await localNotificationsSublevel.put(id, notification);
+    }
+  }
+
+  static async markAllAsRead(): Promise<void> {
+    const batch = localNotificationsSublevel.batch();
+
+    for await (const [key, value] of localNotificationsSublevel.iterator()) {
+      if (!value.isRead) {
+        value.isRead = true;
+        batch.put(key, value);
+      }
+    }
+
+    await batch.write();
+  }
+
+  static async deleteNotification(id: string): Promise<void> {
+    await localNotificationsSublevel.del(id);
+  }
+
+  static async clearAll(): Promise<void> {
+    await localNotificationsSublevel.clear();
+  }
+}

src/main/services/ws/events/notification.ts

@@ -0,0 +1,8 @@
+import type { Notification } from "@main/generated/envelope";
+import { WindowManager } from "@main/services/window-manager";
+
+export const notificationEvent = (payload: Notification) => {
+  WindowManager.mainWindow?.webContents.send("on-sync-notification-count", {
+    notificationCount: payload.notificationCount,
+  });
+};

src/main/services/ws/ws-client.ts

@@ -4,6 +4,7 @@ import { Envelope } from "@main/generated/envelope";
 import { logger } from "../logger";
 import { friendRequestEvent } from "./events/friend-request";
 import { friendGameSessionEvent } from "./events/friend-game-session";
+import { notificationEvent } from "./events/notification";
 
 export class WSClient {
   private static ws: WebSocket | null = null;
@@ -51,6 +52,10 @@ export class WSClient {
         if (envelope.payload.oneofKind === "friendGameSession") {
           friendGameSessionEvent(envelope.payload.friendGameSession);
         }
+
+        if (envelope.payload.oneofKind === "notification") {
+          notificationEvent(envelope.payload.notification);
+        }
       });
 
       this.ws.on("close", () => this.handleDisconnect("close"));