v7.3.0

changelog.md

@@ -1,5 +1,144 @@
 # Changelog
 
+## 2025-12-04 - 7.3.0 - feat(serviceworker)
+Modernize SW dashboard UI and improve service worker backend and server tooling
+
+- Revamped sw-dash UI: new header/logo, uptime badge, live auto-refresh indicator, reorganized panels and improved speedtest UI and controls
+- Shared styles overhaul: new theming variables, spacing scale, badges, refined progress/pulse animations and cleaner typography
+- Dashboard internals: metrics endpoint and SPA shell updated; Lit bundle loading and table sort icon changed to ↑/↓
+- Service worker: added request deduplication (in-flight request coalescing), safer caching logic, consistent CORS/caching headers, and cache revalidation
+- Metrics: richer MetricsCollector with per-resource tracking, domain/content-type stats, speedtest metrics and better summary/stat helpers
+- Update & network managers: rate-limited update checks, debounced update/revalidation tasks, online/offline checks and improved retry/backoff logic
+- TypedServer & tooling: addRoute API for custom routes, improved HTML reload script injection, TypedSocket integration and a backend speedtest handler
+- servertools: improved static/proxy handlers (more robust path extraction, compression handling) and deprecation notice for addTypedSocket()
+
+## 2025-12-04 - 7.2.0 - feat(serviceworker)
+Add service worker status updates, EventBus and UI status pill for realtime observability
+
+- Introduce a status update protocol for service worker <-> clients (IStatusUpdate, IMessage_Serviceworker_StatusUpdate, IRequest_Serviceworker_GetStatus).
+- Add typedserver-statuspill Lit component to display backend/serviceworker/network status in the UI, with expand/collapse details and persistent/error states.
+- Wire ReloadChecker to use the new status pill: show network/backend/serviceworker status, handle online/offline events, and subscribe to service worker status broadcasts.
+- Extend ActionManager (client) with subscribeToStatusUpdates and getServiceWorkerStatus helpers; forward serviceworker_statusUpdate broadcasts to registered callbacks.
+- Serviceworker backend: add serviceworker_getStatus handler and broadcastStatusUpdate API; subscribe to EventBus lifecycle/network/update events to broadcast status changes to clients.
+- Add EventBus for decoupled service worker internal events (ServiceWorkerEvent enum, pub/sub API, history and convenience emitters).
+- Ensure proper subscribe/unsubscribe lifecycle (ReloadChecker stops SW subscription on stop).
+- Improve cache/connection status reporting integration so status updates include details like cacheHitRate, resourceCount and connected clients.
+
+## 2025-12-04 - 7.1.0 - feat(swdash)
+Add live speedtest progress UI to service worker dashboard
+
+- Introduce reactive speedtest state (phase, progress, elapsed) in sw-dash-overview component
+- Start a progress interval to animate overall test progress and estimate phases (latency, download, upload)
+- Dispatch 'speedtest-complete' event and show a brief complete state before resetting UI
+- Add helper methods for phase labels and elapsed time formatting
+- Add CSS for progress bar, shimmer animation and phase pulse to sw-dash-styles
+
+## 2025-12-04 - 7.0.0 - BREAKING CHANGE(serviceworker)
+Move serviceworker speedtest to time-based chunked transfers and update dashboard/server contract
+
+- Change speedtest protocol to time-based chunk transfers: new request types 'download_chunk' and 'upload_chunk' plus 'latency'. Clients should call chunk requests in a loop for the desired test duration.
+- IRequest_Serviceworker_Speedtest interface updated: request fields renamed/changed (chunkSizeKB, payload) and response no longer includes durationMs or speedMbps — server now returns bytesTransferred, timestamp, and optional payload.
+- TypedServer speedtest handler updated to support 'download_chunk' and 'upload_chunk' semantics and to return bytesTransferred/timestamp/payload only (removed server-side duration/speed calculation).
+- Dashboard runSpeedtest now performs time-based tests (TEST_DURATION_MS = 5000, CHUNK_SIZE_KB = 64) by repeatedly requesting chunks and computing throughput on the client side.
+- Documentation/comments updated to clarify new speedtest behavior and default chunk sizes.
+
+## 2025-12-04 - 6.8.1 - fix(web_serviceworker)
+Move service worker initialization to init.ts and remove exports from service worker entrypoint to avoid ESM bundle output
+
+- Remove exports from ts_web_serviceworker/index.ts so the service worker entrypoint does not export symbols (prevents tsbundle from producing ESM output).
+- Add ts_web_serviceworker/init.ts which initializes the ServiceWorker instance and exports getServiceWorkerInstance() for internal imports.
+- Update ts_web_serviceworker/classes.dashboard.ts to import getServiceWorkerInstance from init.ts instead of index.ts.
+
+## 2025-12-04 - 6.8.0 - feat(swdash)
+Add SW-Dash (Lit-based service worker dashboard), bundle & serve it; improve servertools and static handlers
+
+- Add a new sw-dash frontend (ts_swdash) implemented with Lit: sw-dash-app, sw-dash-overview, sw-dash-urls, sw-dash-domains, sw-dash-types, sw-dash-table, shared styles and plugin shims.
+- Wire sw-dash into build pipeline and packaging: add ts_swdash bundle to npm build script and include ts_swdash in package files.
+- Serve the dashboard bundle: add paths (swdashBundleDir / swdashBundlePath) and a built-in route (/sw-dash/bundle.js) in BuiltInRoutesController.
+- Simplify service-worker dashboard HTML output to a minimal shell that mounts <sw-dash-app> and loads the module /sw-dash/bundle.js (reduces inline HTML/CSS/JS duplication).
+- Lazy-load service worker bundle and source map in servertools.tools.serviceworker and expose /sw-typedrequest endpoints for SW typed requests (including speedtest handler).
+- Enhance compression utilities and static serving: Compressor now caches compressed results, prioritizes preferred compression methods, provides safer zlib calls, and exposes createCompressionStream; HandlerStatic gained improved path resolution, Express 5 wildcard handling and optional compression flow.
+- Improve proxy/static handler path handling to be compatible with Express 5 wildcard parameters and more robust fallback logic.
+- Deprecate Server.addTypedSocket (no-op) and document recommended SmartServe/TypedServer integration for WebSocket support.
+- Various minor packaging/path updates (paths.ts, plugins exports) to support the new dashboard and bundles.
+
+## 2025-12-04 - 6.7.0 - feat(web_serviceworker)
+Add per-resource metrics and request deduplication to service worker cache manager
+
+- Introduce per-resource tracking in metrics: ICachedResource, IDomainStats, IContentTypeStats and a resourceStats map.
+- Add MetricsCollector.recordResourceAccess(...) to record hits/misses, content-type and size; provide getters: getCachedResources, getDomainStats, getContentTypeStats and getResourceCount.
+- Reset resourceStats when metrics are reset and limit resource entries via cleanupResourceStats to avoid memory bloat.
+- Add request deduplication in CacheManager (fetchWithDeduplication) to coalesce identical concurrent fetches and a periodic safety cleanup for in-flight requests.
+- Record resource accesses on cache hit and when storing new cache entries (captures content-type and body size).
+- Expose a dashboard resources endpoint (/sw-dash/resources) served by the SW dashboard to return detailed resource data for SPA views.
+
+## 2025-12-04 - 6.6.0 - feat(web_serviceworker)
+Enable service worker dashboard speedtests via TypedSocket, expose ServiceWorker instance to dashboard, and add server-side speedtest handler
+
+- Add `serviceworker_speedtest` typed handler in TypedServer to support download/upload/latency tests from service workers
+- Export `getServiceWorkerInstance` from the web_serviceworker entrypoint so other modules (dashboard) can access the running ServiceWorker instance
+- Make ServiceWorker.typedsocket and ServiceWorker.typedrouter public to allow the dashboard to create and fire TypedSocket requests
+- Update dashboard to run latency, download and upload tests over TypedSocket instead of POSTing to /sw-typedrequest
+- Deprecate legacy servertools.Server.addTypedSocket (now a no-op) and recommend using TypedServer with SmartServe integration for WebSocket support
+
+## 2025-12-04 - 6.5.0 - feat(serviceworker)
+Add server-driven service worker cache invalidation and TypedSocket integration
+
+- TypedServer: push cache invalidation messages to service worker clients (tagged 'serviceworker') before notifying frontend clients on reload
+- Service Worker: connect to TypedServer via TypedSocket; handle 'serviceworker_cacheInvalidate' typed request to clean caches and trigger client reloads
+- Web inject: add fallback to clear caches via the Cache API when global service worker helper is not available
+- Interfaces: add IRequest_Serviceworker_CacheInvalidate typedrequest interface
+- Plugins: export typedsocket in web_serviceworker plugin surface
+- Service worker connection: retry logic and improved logging for TypedSocket connection attempts
+
+## 2025-12-04 - 6.4.0 - feat(serviceworker)
+Add speedtest support to service worker and dashboard
+
+- Add serviceworker_speedtest typed request handler to measure download, upload and latency
+- Expose dashboard speedtest endpoint (/sw-dash/speedtest) and integrate runSpeedtest flow
+- Dashboard UI: add speedtest panel, run button, visual speed bars and online indicator
+- Metrics: introduce ISpeedtestMetrics and methods (recordSpeedtest, setOnlineStatus, getSpeedtestMetrics) and include speedtest data in metrics output
+- Server/tools: add typedrequest handling for speedtest in sw-typedrequest and route service worker dashboard path in CacheManager
+
+## 2025-12-04 - 6.3.0 - feat(web_serviceworker)
+Add advanced service worker subsystems: cache deduplication, metrics, update & network managers, event bus and dashboard
+
+- CacheManager: request deduplication for concurrent fetches, safer caching (preserve CORS headers), periodic in-flight cleanup and full cache cleaning API
+- Fetch handling: improved handling for same-origin vs cross-origin requests, more robust 500 debug responses when upstream fetch fails
+- UpdateManager: rate-limited update checks, offline grace period, debounced update and cache revalidation tasks, forceUpdate logic and persisted version/cache timestamps
+- NetworkManager: online/offline detection, retry/backoff, request timeouts and more resilient makeRequest implementation
+- EventBus: singleton pub/sub with history, once/onMany/onAll helpers and convenience emitters for cache/network/update events
+- MetricsCollector: comprehensive metrics for cache, network, updates and connections with helper methods and JSON/HTML dashboard endpoints (/sw-dash, /sw-dash/metrics)
+- ErrorHandler & ServiceWorkerError: structured error types, severity, context, history and helper APIs for consistent error reporting
+- ServiceWorker & backend: improved install/activate flows, clients.claim(), cache cleaning on activation, backend APIs to purge cache and trigger reloads/notifications
+- TypedServer / servertools: addRoute path pattern parsing (named params & wildcards), safer HTML injection for reload script, TypedRequest controller and service worker route helpers
+- Various safety and compatibility improvements (response cloning, header normalization, cache-control decisions, and fallback behaviors)
+
+## 2025-12-04 - 6.2.0 - feat(web_serviceworker)
+Add service-worker dashboard and request deduplication; improve caching, metrics and error handling
+
+- Add DashboardGenerator to serve an interactive terminal-style dashboard at /sw-dash and a metrics JSON endpoint at /sw-dash/metrics
+- Introduce request deduplication in CacheManager to coalesce concurrent network fetches and avoid duplicate requests
+- Add periodic cleanup for in-flight request tracking to prevent unbounded memory growth
+- Improve caching flow: preserve response headers (excluding cache-control headers), ensure CORS headers and Cross-Origin-Resource-Policy, and store response bodies as blobs to avoid locked stream issues
+- Provide clearer 500 error HTML responses for failed fetches to aid debugging
+- Integrate metrics and event emissions for network and cache operations (record request success/failure, cache hits/misses, and emit corresponding events)
+
+## 2025-12-04 - 6.1.0 - feat(web_serviceworker)
+Enhance service worker subsystem: add metrics, event bus, error handling, config and caching/update improvements; make client connection & polling robust
+
+- Introduce MetricsCollector (cache, network, update, connection) for runtime observability and APIs to retrieve metrics
+- Add EventBus singleton to emit/subscribe to internal SW events (cache hits/misses, network events, update lifecycle, connection events)
+- Add ErrorHandler and ServiceWorkerError types for consistent error classification and tracking
+- Add ServiceWorkerConfig with defaults and WebStore persistence to centralize SW settings (cache, update, network, blocked/cacheable domains)
+- CacheManager: implement request deduplication (in-flight request coalescing), periodic in-flight cleanup, record cache hit/miss metrics and safer cache storing (headers/body handling)
+- UpdateManager: rate-limited and concurrency-safe update checks, improved stale-cache handling, event emissions, debounced update and revalidation tasks, and metrics recording
+- NetworkManager: enhanced online/offline detection and robust request retries/timeouts/backoff handling
+- ServiceworkerBackend: improved client reload logic and notification handling via DeesComms and clients API
+- Serviceworker client-side: ActionManager.waitForServiceWorkerConnection now returns a structured result with timeout/retries/backoff; ServiceworkerClient gains controllable polling (AbortController), visibility-based pause/resume, manual trigger and lifecycle cleanup
+- Expose serviceworker bundle routes at both nested and root paths (/serviceworker/*splat and /serviceworker.bundle.js(.map)) in servertools
+- Add/extend typed interfaces for serviceworker metrics and connection results
+
 ## 2025-12-04 - 6.0.1 - fix(web_inject)
 Use TypedSocket status API in web_inject and bump dependencies
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@api.global/typedserver",
-  "version": "6.0.1",
+  "version": "7.3.0",
   "description": "A TypeScript-based project for easy serving of static files with support for live reloading, compression, and typed requests.",
   "type": "module",
   "exports": {
@@ -15,7 +15,7 @@
   "scripts": {
     "test": "npm run build && tstest test/ --verbose --logfile --timeout 60",
     "build": "tsbuild tsfolders --web --allowimplicitany && npm run bundle",
-    "bundle": "tsbundle --from ./ts_web_inject/index.ts --to ./dist_ts_web_inject/bundle.js && tsbundle --from ./ts_web_serviceworker/index.ts --to ./dist_ts_web_serviceworker/serviceworker.bundle.js",
+    "bundle": "tsbundle --from ./ts_web_inject/index.ts --to ./dist_ts_web_inject/bundle.js && tsbundle --from ./ts_web_serviceworker/index.ts --to ./dist_ts_web_serviceworker/serviceworker.bundle.js && tsbundle --from ./ts_swdash/index.ts --to ./dist_ts_swdash/bundle.js",
     "interfaces": "tsbuild interfaces --web --allowimplicitany --skiplibcheck",
     "docs": "tsdoc aidoc"
   },
@@ -47,6 +47,7 @@
   "files": [
     "ts/**/*",
     "ts_web/**/*",
+    "ts_swdash/**/*",
     "dist/**/*",
     "dist_*/**/*",
     "dist_ts/**/*",

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@api.global/typedserver',
-  version: '6.0.1',
+  version: '7.3.0',
   description: 'A TypeScript-based project for easy serving of static files with support for live reloading, compression, and typed requests.'
 }

ts/classes.typedserver.ts

@@ -271,7 +271,11 @@ export class TypedServer {
     // Setup file watching
     if (this.options.watch && this.options.serveDir) {
       try {
-        this.smartwatchInstance = new plugins.smartwatch.Smartwatch([this.options.serveDir]);
+        // Use glob pattern to match all files recursively in serveDir
+        const watchGlob = this.options.serveDir.endsWith('/')
+          ? `${this.options.serveDir}**/*`
+          : `${this.options.serveDir}/**/*`;
+        this.smartwatchInstance = new plugins.smartwatch.Smartwatch([watchGlob]);
         await this.smartwatchInstance.start();
         (await this.smartwatchInstance.getObservableFor('change')).subscribe(async () => {
           await this.createServeDirHash();
@@ -302,6 +306,35 @@ export class TypedServer {
           };
         })
       );
+
+      // Speedtest handler for service worker dashboard
+      // Client calls this in a loop for the test duration to get accurate time-based measurements
+      this.typedrouter.addTypedHandler<interfaces.serviceworker.IRequest_Serviceworker_Speedtest>(
+        new plugins.typedrequest.TypedHandler('serviceworker_speedtest', async (reqArg) => {
+          const chunkSizeKB = reqArg.chunkSizeKB || 64;
+          const sizeBytes = chunkSizeKB * 1024;
+          let payload: string | undefined;
+          let bytesTransferred = 0;
+
+          switch (reqArg.type) {
+            case 'download_chunk':
+              // Generate chunk data for download test
+              payload = 'x'.repeat(sizeBytes);
+              bytesTransferred = sizeBytes;
+              break;
+            case 'upload_chunk':
+              // Acknowledge received upload data
+              bytesTransferred = reqArg.payload?.length || 0;
+              break;
+            case 'latency':
+              // Simple ping - minimal data
+              bytesTransferred = 0;
+              break;
+          }
+
+          return { bytesTransferred, timestamp: Date.now(), payload };
+        })
+      );
     } catch (error) {
       console.error('Failed to initialize TypedSocket:', error);
     }
@@ -496,6 +529,30 @@ export class TypedServer {
       return;
     }
 
+    // Push cache invalidation to service workers first
+    try {
+      const swConnections = await this.typedsocket.findAllTargetConnectionsByTag('serviceworker');
+      for (const connection of swConnections) {
+        const pushCacheInvalidate =
+          this.typedsocket.createTypedRequest<interfaces.serviceworker.IRequest_Serviceworker_CacheInvalidate>(
+            'serviceworker_cacheInvalidate',
+            connection
+          );
+        pushCacheInvalidate.fire({
+          reason: 'File change detected',
+          timestamp: this.lastReload,
+        }).catch(err => {
+          console.warn('Failed to push cache invalidation to service worker:', err);
+        });
+      }
+      if (swConnections.length > 0) {
+        console.log(`Pushed cache invalidation to ${swConnections.length} service worker(s)`);
+      }
+    } catch (error) {
+      console.warn('Failed to notify service workers:', error);
+    }
+
+    // Notify frontend clients
     try {
       const connections = await this.typedsocket.findAllTargetConnectionsByTag(
         'typedserver_frontend'

ts/controllers/controller.builtin.ts

@@ -1,4 +1,5 @@
 import * as plugins from '../plugins.js';
+import * as paths from '../paths.js';
 
 /**
  * Built-in routes controller for TypedServer
@@ -122,4 +123,25 @@ export class BuiltInRoutesController {
       headers: { 'Content-Type': 'text/plain' },
     });
   }
+
+  @plugins.smartserve.Get('/sw-dash/bundle.js')
+  async getSwDashBundle(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    try {
+      const bundleContent = (await plugins.fsInstance
+        .file(paths.swdashBundlePath)
+        .encoding('utf8')
+        .read()) as string;
+
+      return new Response(bundleContent, {
+        status: 200,
+        headers: {
+          'Content-Type': 'text/javascript',
+          'Cache-Control': 'no-cache',
+        },
+      });
+    } catch (error) {
+      console.error('Failed to serve sw-dash bundle:', error);
+      return new Response('SW-Dash bundle not found', { status: 404 });
+    }
+  }
 }

ts/paths.ts

@@ -8,4 +8,7 @@ export const packageDir = plugins.path.join(
 export const injectBundleDir = plugins.path.join(packageDir, './dist_ts_web_inject');
 export const injectBundlePath = plugins.path.join(injectBundleDir, './bundle.js');
 
-export const serviceworkerBundleDir = plugins.path.join(packageDir, './dist_ts_web_serviceworker');
+export const serviceworkerBundleDir = plugins.path.join(packageDir, './dist_ts_web_serviceworker');
+
+export const swdashBundleDir = plugins.path.join(packageDir, './dist_ts_swdash');
+export const swdashBundlePath = plugins.path.join(swdashBundleDir, './bundle.js');

ts/servertools/tools.serviceworker.ts

@@ -33,8 +33,8 @@ export const addServiceWorkerRoute = (
   // Set the version info
   swVersionInfo = swDataFunc();
 
-  // Service worker bundle handler
-  typedserverInstance.addRoute('/serviceworker/*splat', 'GET', async (request: Request) => {
+  // Handler function for serviceworker bundle requests
+  const handleServiceWorkerRequest = async (request: Request): Promise<Response> => {
     await loadServiceWorkerBundle();
     const url = new URL(request.url);
     const path = url.pathname;
@@ -58,7 +58,14 @@ export const addServiceWorkerRoute = (
     }
 
     return null;
-  });
+  };
+
+  // Service worker bundle handler - nested path
+  typedserverInstance.addRoute('/serviceworker/*splat', 'GET', handleServiceWorkerRequest);
+
+  // Service worker bundle handler - root level (for /serviceworker.bundle.js)
+  typedserverInstance.addRoute('/serviceworker.bundle.js', 'GET', handleServiceWorkerRequest);
+  typedserverInstance.addRoute('/serviceworker.bundle.js.map', 'GET', handleServiceWorkerRequest);
 
   // Typed request handler for service worker
   typedserverInstance.addRoute('/sw-typedrequest', 'POST', async (request: Request) => {
@@ -77,6 +84,41 @@ export const addServiceWorkerRoute = (
         )
       );
 
+      // Speedtest handler for measuring connection speed (time-based chunked approach)
+      typedrouter.addTypedHandler(
+        new plugins.typedrequest.TypedHandler<interfaces.serviceworker.IRequest_Serviceworker_Speedtest>(
+          'serviceworker_speedtest',
+          async (reqArg) => {
+            const chunkSizeKB = reqArg.chunkSizeKB || 64;
+            const sizeBytes = chunkSizeKB * 1024;
+            let payload: string | undefined;
+            let bytesTransferred = 0;
+
+            switch (reqArg.type) {
+              case 'download_chunk':
+                // Generate chunk payload for download test
+                payload = 'x'.repeat(sizeBytes);
+                bytesTransferred = sizeBytes;
+                break;
+              case 'upload_chunk':
+                // For upload, measure bytes received from client
+                bytesTransferred = reqArg.payload?.length || 0;
+                break;
+              case 'latency':
+                // Simple ping - no payload needed
+                bytesTransferred = 0;
+                break;
+            }
+
+            return {
+              bytesTransferred,
+              timestamp: Date.now(),
+              payload, // Only for download_chunk tests
+            };
+          }
+        )
+      );
+
       const response = await typedrouter.routeAndAddResponse(body);
       return new Response(plugins.smartjson.stringify(response), {
         status: 200,

ts_interfaces/serviceworker.ts

@@ -124,4 +124,193 @@ export interface IRequest_Client_Serviceworker_ConnectionPolling
   response: {
     serviceworkerId: string;
   }
+}
+
+// ===============
+// Metrics interfaces
+// ===============
+
+/**
+ * Request to get service worker metrics
+ */
+export interface IRequest_Serviceworker_Metrics
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_Metrics
+  > {
+  method: 'serviceworker_metrics';
+  request: {};
+  response: {
+    cache: {
+      hits: number;
+      misses: number;
+      errors: number;
+      bytesServedFromCache: number;
+      bytesFetched: number;
+      averageResponseTime: number;
+    };
+    network: {
+      totalRequests: number;
+      successfulRequests: number;
+      failedRequests: number;
+      timeouts: number;
+      averageLatency: number;
+      totalBytesTransferred: number;
+    };
+    update: {
+      totalChecks: number;
+      successfulChecks: number;
+      failedChecks: number;
+      updatesFound: number;
+      updatesApplied: number;
+      lastCheckTimestamp: number;
+      lastUpdateTimestamp: number;
+    };
+    connection: {
+      connectedClients: number;
+      totalConnectionAttempts: number;
+      successfulConnections: number;
+      failedConnections: number;
+    };
+    startTime: number;
+    uptime: number;
+  };
+}
+
+// ===============
+// Connection result interface
+// ===============
+
+/**
+ * Result of a service worker connection attempt
+ */
+export interface IConnectionResult {
+  connected: boolean;
+  error?: string;
+  attempts?: number;
+  duration?: number;
+}
+
+// ===============
+// Speedtest interfaces
+// ===============
+
+/**
+ * Cache invalidation request from server to service worker
+ */
+export interface IRequest_Serviceworker_CacheInvalidate
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_CacheInvalidate
+  > {
+  method: 'serviceworker_cacheInvalidate';
+  request: {
+    reason: string;
+    timestamp: number;
+  };
+  response: {
+    success: boolean;
+  };
+}
+
+/**
+ * Speedtest request between service worker and backend
+ *
+ * Types:
+ * - 'latency': Simple ping to measure round-trip time
+ * - 'download_chunk': Request a chunk of data (64KB default)
+ * - 'upload_chunk': Send a chunk of data to server
+ *
+ * The client runs a loop calling download_chunk or upload_chunk
+ * until the desired test duration (e.g., 5 seconds) elapses.
+ */
+export interface IRequest_Serviceworker_Speedtest
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_Speedtest
+  > {
+  method: 'serviceworker_speedtest';
+  request: {
+    type: 'latency' | 'download_chunk' | 'upload_chunk';
+    chunkSizeKB?: number;    // Size of chunk in KB (default: 64)
+    payload?: string;        // For upload_chunk, the data to send
+  };
+  response: {
+    bytesTransferred: number;
+    timestamp: number;
+    payload?: string;        // For download_chunk, the data received
+  };
+}
+
+// ===============
+// Status update interfaces
+// ===============
+
+/**
+ * Status update source types
+ */
+export type TStatusSource = 'backend' | 'serviceworker' | 'network';
+
+/**
+ * Status update event types
+ */
+export type TStatusType = 'connected' | 'disconnected' | 'reconnecting' | 'update' | 'cache' | 'error' | 'offline' | 'online';
+
+/**
+ * Status update details
+ */
+export interface IStatusDetails {
+  version?: string;
+  cacheHitRate?: number;
+  resourceCount?: number;
+  connectionType?: string;
+  latencyMs?: number;
+  message?: string;
+}
+
+/**
+ * Status update payload sent from SW to clients
+ */
+export interface IStatusUpdate {
+  source: TStatusSource;
+  type: TStatusType;
+  message: string;
+  details?: IStatusDetails;
+  persist?: boolean;  // Stay visible until resolved
+  timestamp: number;
+}
+
+/**
+ * Message for status updates from service worker to clients
+ */
+export interface IMessage_Serviceworker_StatusUpdate
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IMessage_Serviceworker_StatusUpdate
+  > {
+  method: 'serviceworker_statusUpdate';
+  request: IStatusUpdate;
+  response: {};
+}
+
+/**
+ * Request to get current service worker status
+ */
+export interface IRequest_Serviceworker_GetStatus
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_GetStatus
+  > {
+  method: 'serviceworker_getStatus';
+  request: {};
+  response: {
+    isActive: boolean;
+    isOnline: boolean;
+    version?: string;
+    cacheHitRate: number;
+    resourceCount: number;
+    connectionType?: string;
+    connectedClients: number;
+    lastUpdateCheck: number;
+  };
 }

ts_swdash/index.ts

@@ -0,0 +1,13 @@
+// SW-Dash: Service Worker Dashboard
+// Entry point for the Lit-based dashboard application
+
+// Import the main app component (which imports all others)
+import './sw-dash-app.js';
+
+// Export components for external use if needed
+export { SwDashApp } from './sw-dash-app.js';
+export { SwDashOverview } from './sw-dash-overview.js';
+export { SwDashTable } from './sw-dash-table.js';
+export { SwDashUrls } from './sw-dash-urls.js';
+export { SwDashDomains } from './sw-dash-domains.js';
+export { SwDashTypes } from './sw-dash-types.js';

ts_swdash/plugins.ts

@@ -0,0 +1,15 @@
+// Lit imports
+import { LitElement, html, css } from 'lit';
+import type { CSSResult, TemplateResult } from 'lit';
+import { customElement, property, state } from 'lit/decorators.js';
+
+export {
+  LitElement,
+  html,
+  css,
+  customElement,
+  property,
+  state,
+};
+
+export type { CSSResult, TemplateResult };

ts_swdash/sw-dash-app.ts

@@ -0,0 +1,268 @@
+import { LitElement, html, css, state, customElement } from './plugins.js';
+import type { CSSResult, TemplateResult } from './plugins.js';
+import { sharedStyles, terminalStyles, navStyles } from './sw-dash-styles.js';
+import type { IMetricsData } from './sw-dash-overview.js';
+import type { ICachedResource } from './sw-dash-urls.js';
+import type { IDomainStats } from './sw-dash-domains.js';
+import type { IContentTypeStats } from './sw-dash-types.js';
+
+// Import components to register them
+import './sw-dash-overview.js';
+import './sw-dash-urls.js';
+import './sw-dash-domains.js';
+import './sw-dash-types.js';
+import './sw-dash-table.js';
+
+type ViewType = 'overview' | 'urls' | 'domains' | 'types';
+
+interface IResourceData {
+  resources: ICachedResource[];
+  domains: IDomainStats[];
+  contentTypes: IContentTypeStats[];
+  resourceCount: number;
+}
+
+/**
+ * Main SW Dashboard application shell
+ */
+@customElement('sw-dash-app')
+export class SwDashApp extends LitElement {
+  public static styles: CSSResult[] = [
+    sharedStyles,
+    terminalStyles,
+    navStyles,
+    css`
+      :host {
+        display: block;
+        background: var(--bg-primary);
+        min-height: 100vh;
+        padding: var(--space-5);
+      }
+
+      .view {
+        display: none;
+      }
+
+      .view.active {
+        display: block;
+      }
+
+      .header-left {
+        display: flex;
+        align-items: center;
+        gap: var(--space-3);
+      }
+
+      .logo {
+        width: 24px;
+        height: 24px;
+        background: var(--accent-primary);
+        border-radius: var(--radius-sm);
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        font-weight: 700;
+        font-size: 12px;
+        color: white;
+      }
+
+      .uptime-badge {
+        display: inline-flex;
+        align-items: center;
+        gap: var(--space-1);
+        padding: var(--space-1) var(--space-2);
+        background: var(--bg-tertiary);
+        border-radius: var(--radius-sm);
+        font-size: 11px;
+        color: var(--text-tertiary);
+      }
+
+      .uptime-badge .value {
+        color: var(--text-primary);
+        font-weight: 500;
+        font-variant-numeric: tabular-nums;
+      }
+
+      .footer-left {
+        display: flex;
+        align-items: center;
+        gap: var(--space-2);
+        color: var(--text-tertiary);
+        font-size: 11px;
+      }
+
+      .footer-right {
+        display: flex;
+        align-items: center;
+        gap: var(--space-2);
+      }
+
+      .auto-refresh {
+        display: inline-flex;
+        align-items: center;
+        gap: var(--space-1);
+        padding: var(--space-1) var(--space-2);
+        background: rgba(34, 197, 94, 0.1);
+        color: var(--accent-success);
+        border-radius: var(--radius-sm);
+        font-size: 11px;
+        font-weight: 500;
+      }
+
+      .auto-refresh .dot {
+        width: 5px;
+        height: 5px;
+        border-radius: 50%;
+        background: currentColor;
+        animation: pulse 2s infinite;
+      }
+
+      @keyframes pulse {
+        0%, 100% { opacity: 1; }
+        50% { opacity: 0.4; }
+      }
+    `
+  ];
+
+  @state() accessor currentView: ViewType = 'overview';
+  @state() accessor metrics: IMetricsData | null = null;
+  @state() accessor resourceData: IResourceData = {
+    resources: [],
+    domains: [],
+    contentTypes: [],
+    resourceCount: 0
+  };
+  @state() accessor lastRefresh = new Date().toLocaleTimeString();
+
+  private refreshInterval: ReturnType<typeof setInterval> | null = null;
+
+  connectedCallback(): void {
+    super.connectedCallback();
+    this.loadMetrics();
+    this.loadResourceData();
+    // Auto-refresh every 2 seconds
+    this.refreshInterval = setInterval(() => {
+      this.loadMetrics();
+      if (this.currentView !== 'overview') {
+        this.loadResourceData();
+      }
+    }, 2000);
+  }
+
+  disconnectedCallback(): void {
+    super.disconnectedCallback();
+    if (this.refreshInterval) {
+      clearInterval(this.refreshInterval);
+    }
+  }
+
+  private async loadMetrics(): Promise<void> {
+    try {
+      const response = await fetch('/sw-dash/metrics');
+      this.metrics = await response.json();
+      this.lastRefresh = new Date().toLocaleTimeString();
+    } catch (err) {
+      console.error('Failed to load metrics:', err);
+    }
+  }
+
+  private async loadResourceData(): Promise<void> {
+    try {
+      const response = await fetch('/sw-dash/resources');
+      this.resourceData = await response.json();
+    } catch (err) {
+      console.error('Failed to load resources:', err);
+    }
+  }
+
+  private setView(view: ViewType): void {
+    this.currentView = view;
+    if (view !== 'overview') {
+      this.loadResourceData();
+    }
+  }
+
+  private handleSpeedtestComplete(_e: CustomEvent): void {
+    // Refresh metrics after speedtest
+    this.loadMetrics();
+  }
+
+  private formatUptime(ms: number): string {
+    const s = Math.floor(ms / 1000);
+    const m = Math.floor(s / 60);
+    const h = Math.floor(m / 60);
+    const d = Math.floor(h / 24);
+    if (d > 0) return `${d}d ${h % 24}h`;
+    if (h > 0) return `${h}h ${m % 60}m`;
+    if (m > 0) return `${m}m ${s % 60}s`;
+    return `${s}s`;
+  }
+
+  public render(): TemplateResult {
+    return html`
+      <div class="terminal">
+        <div class="header">
+          <div class="header-left">
+            <div class="logo">SW</div>
+            <span class="title">Service Worker Dashboard</span>
+          </div>
+          <div class="uptime-badge">
+            Uptime: <span class="value">${this.metrics ? this.formatUptime(this.metrics.uptime) : '--'}</span>
+          </div>
+        </div>
+
+        <nav class="nav">
+          <button
+            class="nav-tab ${this.currentView === 'overview' ? 'active' : ''}"
+            @click="${() => this.setView('overview')}"
+          >Overview</button>
+          <button
+            class="nav-tab ${this.currentView === 'urls' ? 'active' : ''}"
+            @click="${() => this.setView('urls')}"
+          >URLs <span class="count">${this.resourceData.resourceCount}</span></button>
+          <button
+            class="nav-tab ${this.currentView === 'domains' ? 'active' : ''}"
+            @click="${() => this.setView('domains')}"
+          >Domains</button>
+          <button
+            class="nav-tab ${this.currentView === 'types' ? 'active' : ''}"
+            @click="${() => this.setView('types')}"
+          >Types</button>
+        </nav>
+
+        <div class="content">
+          <div class="view ${this.currentView === 'overview' ? 'active' : ''}">
+            <sw-dash-overview
+              .metrics="${this.metrics}"
+              @speedtest-complete="${this.handleSpeedtestComplete}"
+            ></sw-dash-overview>
+          </div>
+
+          <div class="view ${this.currentView === 'urls' ? 'active' : ''}">
+            <sw-dash-urls .resources="${this.resourceData.resources}"></sw-dash-urls>
+          </div>
+
+          <div class="view ${this.currentView === 'domains' ? 'active' : ''}">
+            <sw-dash-domains .domains="${this.resourceData.domains}"></sw-dash-domains>
+          </div>
+
+          <div class="view ${this.currentView === 'types' ? 'active' : ''}">
+            <sw-dash-types .contentTypes="${this.resourceData.contentTypes}"></sw-dash-types>
+          </div>
+        </div>
+
+        <div class="footer">
+          <div class="footer-left">
+            Last updated: ${this.lastRefresh}
+          </div>
+          <div class="footer-right">
+            <div class="auto-refresh">
+              <span class="dot"></span>
+              Live
+            </div>
+          </div>
+        </div>
+      </div>
+    `;
+  }
+}

ts_swdash/sw-dash-domains.ts

@@ -0,0 +1,52 @@
+import { LitElement, html, css, property, customElement } from './plugins.js';
+import type { CSSResult, TemplateResult } from './plugins.js';
+import { sharedStyles, tableStyles } from './sw-dash-styles.js';
+import { SwDashTable } from './sw-dash-table.js';
+import type { IColumnConfig } from './sw-dash-table.js';
+
+export interface IDomainStats {
+  domain: string;
+  totalResources: number;
+  totalSize: number;
+  totalHits: number;
+  totalMisses: number;
+  hitRate: number;
+}
+
+/**
+ * Domains table view component
+ */
+@customElement('sw-dash-domains')
+export class SwDashDomains extends LitElement {
+  public static styles: CSSResult[] = [
+    sharedStyles,
+    tableStyles,
+    css`
+      :host {
+        display: block;
+      }
+    `
+  ];
+
+  @property({ type: Array }) accessor domains: IDomainStats[] = [];
+
+  private columns: IColumnConfig[] = [
+    { key: 'domain', label: 'Domain' },
+    { key: 'totalResources', label: 'Resources', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'totalSize', label: 'Total Size', className: 'num', formatter: SwDashTable.formatBytes },
+    { key: 'totalHits', label: 'Hits', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'totalMisses', label: 'Misses', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'hitRate', label: 'Hit Rate' },
+  ];
+
+  public render(): TemplateResult {
+    return html`
+      <sw-dash-table
+        .columns="${this.columns}"
+        .data="${this.domains}"
+        filterPlaceholder="Filter domains..."
+        infoLabel="domains"
+      ></sw-dash-table>
+    `;
+  }
+}

ts_swdash/sw-dash-overview.ts

@@ -0,0 +1,289 @@
+import { LitElement, html, css, property, state, customElement } from './plugins.js';
+import type { CSSResult, TemplateResult } from './plugins.js';
+import { sharedStyles, panelStyles, gaugeStyles, buttonStyles, speedtestStyles } from './sw-dash-styles.js';
+import { SwDashTable } from './sw-dash-table.js';
+
+export interface IMetricsData {
+  cache: {
+    hits: number;
+    misses: number;
+    errors: number;
+    bytesServedFromCache: number;
+    bytesFetched: number;
+    averageResponseTime: number;
+  };
+  network: {
+    totalRequests: number;
+    successfulRequests: number;
+    failedRequests: number;
+    timeouts: number;
+    averageLatency: number;
+    totalBytesTransferred: number;
+  };
+  update: {
+    totalChecks: number;
+    successfulChecks: number;
+    failedChecks: number;
+    updatesFound: number;
+    updatesApplied: number;
+    lastCheckTimestamp: number;
+    lastUpdateTimestamp: number;
+  };
+  connection: {
+    connectedClients: number;
+    totalConnectionAttempts: number;
+    successfulConnections: number;
+    failedConnections: number;
+  };
+  speedtest: {
+    lastDownloadSpeedMbps: number;
+    lastUploadSpeedMbps: number;
+    lastLatencyMs: number;
+    lastTestTimestamp: number;
+    testCount: number;
+    isOnline: boolean;
+  };
+  startTime: number;
+  uptime: number;
+  cacheHitRate: number;
+  networkSuccessRate: number;
+  resourceCount: number;
+}
+
+/**
+ * Overview panel component with metrics gauges and stats
+ */
+@customElement('sw-dash-overview')
+export class SwDashOverview extends LitElement {
+  public static styles: CSSResult[] = [
+    sharedStyles,
+    panelStyles,
+    gaugeStyles,
+    buttonStyles,
+    speedtestStyles,
+    css`
+      :host {
+        display: block;
+      }
+
+      .panel-content {
+        padding: var(--space-4);
+      }
+
+      .section-divider {
+        margin-top: var(--space-4);
+        padding-top: var(--space-4);
+        border-top: 1px solid var(--border-muted);
+      }
+    `
+  ];
+
+  @property({ type: Object }) accessor metrics: IMetricsData | null = null;
+  @state() accessor speedtestRunning = false;
+  @state() accessor speedtestPhase: 'idle' | 'latency' | 'download' | 'upload' | 'complete' = 'idle';
+  @state() accessor speedtestProgress = 0;
+  @state() accessor speedtestElapsed = 0;
+
+  // Speedtest timing constants (must match service worker)
+  private static readonly TEST_DURATION_MS = 5000;  // 5 seconds per test
+  private progressInterval: number | null = null;
+
+  private async runSpeedtest(): Promise<void> {
+    if (this.speedtestRunning) return;
+    this.speedtestRunning = true;
+    this.speedtestPhase = 'latency';
+    this.speedtestProgress = 0;
+    this.speedtestElapsed = 0;
+
+    // Start progress animation (total ~10.5s: latency ~0.5s + 5s download + 5s upload)
+    const totalEstimatedMs = 10500;
+    const startTime = Date.now();
+
+    this.progressInterval = window.setInterval(() => {
+      this.speedtestElapsed = Date.now() - startTime;
+      this.speedtestProgress = Math.min(100, (this.speedtestElapsed / totalEstimatedMs) * 100);
+
+      // Estimate phase based on elapsed time
+      if (this.speedtestElapsed < 500) {
+        this.speedtestPhase = 'latency';
+      } else if (this.speedtestElapsed < 5500) {
+        this.speedtestPhase = 'download';
+      } else {
+        this.speedtestPhase = 'upload';
+      }
+    }, 100);
+
+    try {
+      const response = await fetch('/sw-dash/speedtest');
+      const result = await response.json();
+
+      this.speedtestPhase = 'complete';
+      this.speedtestProgress = 100;
+
+      // Dispatch event to parent to update metrics
+      this.dispatchEvent(new CustomEvent('speedtest-complete', {
+        detail: result,
+        bubbles: true,
+        composed: true
+      }));
+    } catch (err) {
+      console.error('Speedtest failed:', err);
+      this.speedtestPhase = 'idle';
+    } finally {
+      if (this.progressInterval) {
+        window.clearInterval(this.progressInterval);
+        this.progressInterval = null;
+      }
+      // Keep showing complete state briefly, then reset
+      setTimeout(() => {
+        this.speedtestRunning = false;
+        this.speedtestPhase = 'idle';
+        this.speedtestProgress = 0;
+      }, 1500);
+    }
+  }
+
+  private getPhaseLabel(): string {
+    switch (this.speedtestPhase) {
+      case 'latency': return 'Testing latency';
+      case 'download': return 'Download test';
+      case 'upload': return 'Upload test';
+      case 'complete': return 'Complete';
+      default: return '';
+    }
+  }
+
+  private formatElapsed(): string {
+    const seconds = Math.floor(this.speedtestElapsed / 1000);
+    return `${seconds}s`;
+  }
+
+  public render(): TemplateResult {
+    if (!this.metrics) {
+      return html`<div class="panel"><div class="panel-content">Loading metrics...</div></div>`;
+    }
+
+    const m = this.metrics;
+    const gaugeClass = SwDashTable.getGaugeClass;
+
+    return html`
+      <div class="grid">
+        <!-- Cache Panel -->
+        <div class="panel">
+          <div class="panel-title">Cache</div>
+          <div class="panel-content">
+            <div class="gauge">
+              <div class="gauge-header">
+                <span class="gauge-label">Hit Rate</span>
+                <span class="gauge-value">${m.cacheHitRate}%</span>
+              </div>
+              <div class="gauge-bar">
+                <div class="gauge-fill ${gaugeClass(m.cacheHitRate)}" style="width: ${m.cacheHitRate}%"></div>
+              </div>
+            </div>
+            <div class="row"><span class="label">Hits</span><span class="value success">${SwDashTable.formatNumber(m.cache.hits)}</span></div>
+            <div class="row"><span class="label">Misses</span><span class="value warning">${SwDashTable.formatNumber(m.cache.misses)}</span></div>
+            <div class="row"><span class="label">Errors</span><span class="value ${m.cache.errors > 0 ? 'error' : ''}">${SwDashTable.formatNumber(m.cache.errors)}</span></div>
+            <div class="row"><span class="label">From Cache</span><span class="value">${SwDashTable.formatBytes(m.cache.bytesServedFromCache)}</span></div>
+            <div class="row"><span class="label">Fetched</span><span class="value">${SwDashTable.formatBytes(m.cache.bytesFetched)}</span></div>
+            <div class="row"><span class="label">Resources</span><span class="value">${m.resourceCount}</span></div>
+          </div>
+        </div>
+
+        <!-- Network Panel -->
+        <div class="panel">
+          <div class="panel-title">Network</div>
+          <div class="panel-content">
+            <div class="gauge">
+              <div class="gauge-header">
+                <span class="gauge-label">Success Rate</span>
+                <span class="gauge-value">${m.networkSuccessRate}%</span>
+              </div>
+              <div class="gauge-bar">
+                <div class="gauge-fill ${gaugeClass(m.networkSuccessRate)}" style="width: ${m.networkSuccessRate}%"></div>
+              </div>
+            </div>
+            <div class="row"><span class="label">Total Requests</span><span class="value">${SwDashTable.formatNumber(m.network.totalRequests)}</span></div>
+            <div class="row"><span class="label">Successful</span><span class="value success">${SwDashTable.formatNumber(m.network.successfulRequests)}</span></div>
+            <div class="row"><span class="label">Failed</span><span class="value ${m.network.failedRequests > 0 ? 'error' : ''}">${SwDashTable.formatNumber(m.network.failedRequests)}</span></div>
+            <div class="row"><span class="label">Timeouts</span><span class="value ${m.network.timeouts > 0 ? 'warning' : ''}">${SwDashTable.formatNumber(m.network.timeouts)}</span></div>
+            <div class="row"><span class="label">Avg Latency</span><span class="value">${m.network.averageLatency}ms</span></div>
+            <div class="row"><span class="label">Transferred</span><span class="value">${SwDashTable.formatBytes(m.network.totalBytesTransferred)}</span></div>
+          </div>
+        </div>
+
+        <!-- Updates Panel -->
+        <div class="panel">
+          <div class="panel-title">Updates</div>
+          <div class="panel-content">
+            <div class="row"><span class="label">Total Checks</span><span class="value">${SwDashTable.formatNumber(m.update.totalChecks)}</span></div>
+            <div class="row"><span class="label">Successful</span><span class="value success">${SwDashTable.formatNumber(m.update.successfulChecks)}</span></div>
+            <div class="row"><span class="label">Failed</span><span class="value ${m.update.failedChecks > 0 ? 'error' : ''}">${SwDashTable.formatNumber(m.update.failedChecks)}</span></div>
+            <div class="row"><span class="label">Updates Found</span><span class="value">${SwDashTable.formatNumber(m.update.updatesFound)}</span></div>
+            <div class="row"><span class="label">Updates Applied</span><span class="value success">${SwDashTable.formatNumber(m.update.updatesApplied)}</span></div>
+            <div class="row"><span class="label">Last Check</span><span class="value">${SwDashTable.formatTimestamp(m.update.lastCheckTimestamp)}</span></div>
+          </div>
+        </div>
+
+        <!-- Connections Panel -->
+        <div class="panel">
+          <div class="panel-title">Connections</div>
+          <div class="panel-content">
+            <div class="row"><span class="label">Active Clients</span><span class="value success">${SwDashTable.formatNumber(m.connection.connectedClients)}</span></div>
+            <div class="row"><span class="label">Total Attempts</span><span class="value">${SwDashTable.formatNumber(m.connection.totalConnectionAttempts)}</span></div>
+            <div class="row"><span class="label">Successful</span><span class="value success">${SwDashTable.formatNumber(m.connection.successfulConnections)}</span></div>
+            <div class="row"><span class="label">Failed</span><span class="value ${m.connection.failedConnections > 0 ? 'error' : ''}">${SwDashTable.formatNumber(m.connection.failedConnections)}</span></div>
+            <div class="section-divider">
+              <div class="row"><span class="label">Started</span><span class="value">${SwDashTable.formatTimestamp(m.startTime)}</span></div>
+            </div>
+          </div>
+        </div>
+
+        <!-- Speedtest Panel -->
+        <div class="panel">
+          <div class="panel-title">Speedtest</div>
+          <div class="panel-content">
+            <div class="online-indicator ${m.speedtest.isOnline ? 'online' : 'offline'}">
+              <span class="online-dot"></span>
+              <span>${m.speedtest.isOnline ? 'Online' : 'Offline'}</span>
+            </div>
+            ${this.speedtestRunning ? html`
+              <div class="speedtest-progress">
+                <div class="progress-header">
+                  <span class="progress-phase">${this.getPhaseLabel()}</span>
+                  <span class="progress-time">${this.formatElapsed()}</span>
+                </div>
+                <div class="progress-bar">
+                  <div class="progress-fill ${this.speedtestPhase === 'complete' ? 'complete' : ''}" style="width: ${this.speedtestProgress}%"></div>
+                </div>
+              </div>
+            ` : html`
+              <div class="speedtest-results">
+                <div class="speedtest-metric">
+                  <div class="speedtest-value">${m.speedtest.lastDownloadSpeedMbps.toFixed(1)}</div>
+                  <div class="speedtest-unit">Mbps</div>
+                  <div class="speedtest-label">Download</div>
+                </div>
+                <div class="speedtest-metric">
+                  <div class="speedtest-value">${m.speedtest.lastUploadSpeedMbps.toFixed(1)}</div>
+                  <div class="speedtest-unit">Mbps</div>
+                  <div class="speedtest-label">Upload</div>
+                </div>
+                <div class="speedtest-metric">
+                  <div class="speedtest-value">${m.speedtest.lastLatencyMs.toFixed(0)}</div>
+                  <div class="speedtest-unit">ms</div>
+                  <div class="speedtest-label">Latency</div>
+                </div>
+              </div>
+            `}
+            <div class="btn-row">
+              <button class="btn btn-secondary" ?disabled="${this.speedtestRunning}" @click="${this.runSpeedtest}">
+                ${this.speedtestRunning ? 'Testing...' : 'Run Test'}
+              </button>
+            </div>
+          </div>
+        </div>
+      </div>
+    `;
+  }
+}

ts_swdash/sw-dash-styles.ts

@@ -0,0 +1,667 @@
+import { css } from './plugins.js';
+import type { CSSResult } from './plugins.js';
+
+/**
+ * Modern professional theme for sw-dash components
+ * Inspired by Bloomberg terminals, Vercel dashboards, and shadcn/ui
+ */
+export const sharedStyles: CSSResult = css`
+  :host {
+    /* Neutral backgrounds - zinc scale */
+    --bg-primary: #09090b;
+    --bg-secondary: #18181b;
+    --bg-tertiary: #27272a;
+    --bg-elevated: #3f3f46;
+
+    /* Text colors */
+    --text-primary: #fafafa;
+    --text-secondary: #a1a1aa;
+    --text-tertiary: #71717a;
+
+    /* Borders */
+    --border-default: #27272a;
+    --border-muted: #3f3f46;
+
+    /* Accent colors */
+    --accent-primary: #3b82f6;
+    --accent-success: #22c55e;
+    --accent-warning: #eab308;
+    --accent-error: #ef4444;
+    --accent-info: #06b6d4;
+
+    /* Spacing scale */
+    --space-1: 4px;
+    --space-2: 8px;
+    --space-3: 12px;
+    --space-4: 16px;
+    --space-5: 20px;
+    --space-6: 24px;
+    --space-8: 32px;
+
+    /* Border radius */
+    --radius-sm: 4px;
+    --radius-md: 6px;
+    --radius-lg: 8px;
+    --radius-xl: 12px;
+
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    font-size: 13px;
+    line-height: 1.5;
+    color: var(--text-primary);
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+  }
+
+  * {
+    box-sizing: border-box;
+  }
+`;
+
+export const terminalStyles: CSSResult = css`
+  .terminal {
+    max-width: 1200px;
+    margin: 0 auto;
+    border: 1px solid var(--border-default);
+    background: var(--bg-primary);
+    border-radius: var(--radius-lg);
+    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+    overflow: hidden;
+  }
+
+  .header {
+    border-bottom: 1px solid var(--border-default);
+    padding: var(--space-4) var(--space-5);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    background: var(--bg-secondary);
+  }
+
+  .title {
+    color: var(--text-primary);
+    font-weight: 600;
+    font-size: 14px;
+    letter-spacing: -0.01em;
+  }
+
+  .uptime {
+    color: var(--text-tertiary);
+    font-size: 12px;
+    font-variant-numeric: tabular-nums;
+  }
+
+  .content {
+    padding: var(--space-5);
+    min-height: 400px;
+    background: var(--bg-primary);
+  }
+
+  .footer {
+    border-top: 1px solid var(--border-default);
+    padding: var(--space-3) var(--space-5);
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    background: var(--bg-secondary);
+    font-size: 12px;
+  }
+
+  .refresh-info {
+    color: var(--text-tertiary);
+    font-size: 11px;
+  }
+
+  .status {
+    display: flex;
+    align-items: center;
+    gap: var(--space-2);
+  }
+
+  .status-dot {
+    width: 6px;
+    height: 6px;
+    border-radius: 50%;
+    background: var(--accent-success);
+  }
+
+  .status-dot.offline {
+    background: var(--accent-error);
+  }
+
+  .prompt {
+    color: var(--text-secondary);
+    font-size: 11px;
+  }
+`;
+
+export const navStyles: CSSResult = css`
+  .nav {
+    display: flex;
+    gap: var(--space-1);
+    background: var(--bg-secondary);
+    border-bottom: 1px solid var(--border-default);
+    padding: var(--space-2) var(--space-3);
+  }
+
+  .nav-tab {
+    padding: var(--space-2) var(--space-4);
+    cursor: pointer;
+    color: var(--text-secondary);
+    border: none;
+    background: transparent;
+    font-family: inherit;
+    font-size: 13px;
+    font-weight: 500;
+    transition: all 0.15s ease;
+    border-radius: var(--radius-sm);
+  }
+
+  .nav-tab:hover {
+    color: var(--text-primary);
+    background: var(--bg-tertiary);
+  }
+
+  .nav-tab.active {
+    color: var(--text-primary);
+    background: var(--bg-elevated);
+  }
+
+  .nav-tab .count {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    min-width: 20px;
+    height: 18px;
+    background: var(--bg-tertiary);
+    padding: 0 6px;
+    border-radius: 9999px;
+    font-size: 11px;
+    font-weight: 500;
+    margin-left: var(--space-2);
+    color: var(--text-secondary);
+  }
+
+  .nav-tab.active .count {
+    background: var(--accent-primary);
+    color: white;
+  }
+`;
+
+export const panelStyles: CSSResult = css`
+  .grid {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
+    gap: var(--space-4);
+  }
+
+  .panel {
+    background: var(--bg-secondary);
+    border: 1px solid var(--border-default);
+    border-radius: var(--radius-lg);
+    overflow: hidden;
+  }
+
+  .panel-title {
+    color: var(--text-secondary);
+    font-weight: 600;
+    font-size: 11px;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    padding: var(--space-3) var(--space-4);
+    border-bottom: 1px solid var(--border-default);
+    background: var(--bg-tertiary);
+  }
+
+  .panel-content {
+    padding: var(--space-4);
+  }
+
+  .row {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: var(--space-2) 0;
+    border-bottom: 1px solid var(--border-muted);
+  }
+
+  .row:last-child {
+    border-bottom: none;
+  }
+
+  .label {
+    color: var(--text-secondary);
+    font-size: 13px;
+  }
+
+  .value {
+    color: var(--text-primary);
+    font-weight: 500;
+    font-variant-numeric: tabular-nums;
+  }
+
+  .value.warning {
+    color: var(--accent-warning);
+  }
+
+  .value.error {
+    color: var(--accent-error);
+  }
+
+  .value.success {
+    color: var(--accent-success);
+  }
+`;
+
+export const gaugeStyles: CSSResult = css`
+  .gauge {
+    margin: var(--space-3) 0;
+  }
+
+  .gauge-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: var(--space-2);
+    font-size: 12px;
+  }
+
+  .gauge-label {
+    color: var(--text-secondary);
+  }
+
+  .gauge-value {
+    color: var(--text-primary);
+    font-weight: 600;
+    font-variant-numeric: tabular-nums;
+  }
+
+  .gauge-bar {
+    height: 6px;
+    background: var(--bg-tertiary);
+    border-radius: 3px;
+    overflow: hidden;
+  }
+
+  .gauge-fill {
+    height: 100%;
+    border-radius: 3px;
+    transition: width 0.3s ease;
+  }
+
+  .gauge-fill.good {
+    background: var(--accent-success);
+  }
+
+  .gauge-fill.warning {
+    background: var(--accent-warning);
+  }
+
+  .gauge-fill.bad {
+    background: var(--accent-error);
+  }
+`;
+
+export const tableStyles: CSSResult = css`
+  .table-container {
+    overflow-x: auto;
+    border-radius: var(--radius-md);
+  }
+
+  .data-table {
+    width: 100%;
+    border-collapse: collapse;
+    font-size: 13px;
+  }
+
+  .data-table th {
+    text-align: left;
+    padding: var(--space-3) var(--space-4);
+    background: var(--bg-tertiary);
+    color: var(--text-secondary);
+    font-weight: 500;
+    font-size: 12px;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    cursor: pointer;
+    user-select: none;
+    white-space: nowrap;
+    border-bottom: 1px solid var(--border-default);
+  }
+
+  .data-table th:hover {
+    background: var(--bg-elevated);
+    color: var(--text-primary);
+  }
+
+  .data-table th .sort-icon {
+    margin-left: var(--space-1);
+    opacity: 0.4;
+    font-size: 10px;
+  }
+
+  .data-table th.sorted .sort-icon {
+    opacity: 1;
+    color: var(--accent-primary);
+  }
+
+  .data-table td {
+    padding: var(--space-3) var(--space-4);
+    border-bottom: 1px solid var(--border-default);
+    color: var(--text-primary);
+  }
+
+  .data-table tr:hover td {
+    background: var(--bg-tertiary);
+  }
+
+  .data-table td.url {
+    max-width: 400px;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    color: var(--text-secondary);
+    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
+    font-size: 12px;
+  }
+
+  .data-table td.num {
+    text-align: right;
+    font-variant-numeric: tabular-nums;
+    font-weight: 500;
+  }
+
+  .table-controls {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: var(--space-4);
+    gap: var(--space-3);
+  }
+
+  .search-input {
+    background: var(--bg-tertiary);
+    border: 1px solid var(--border-default);
+    color: var(--text-primary);
+    padding: var(--space-2) var(--space-3);
+    font-family: inherit;
+    font-size: 13px;
+    width: 280px;
+    border-radius: var(--radius-md);
+    transition: all 0.15s ease;
+  }
+
+  .search-input::placeholder {
+    color: var(--text-tertiary);
+  }
+
+  .search-input:focus {
+    outline: none;
+    border-color: var(--accent-primary);
+    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
+  }
+
+  .table-info {
+    color: var(--text-tertiary);
+    font-size: 12px;
+  }
+
+  .hit-rate-bar {
+    width: 60px;
+    height: 4px;
+    background: var(--bg-tertiary);
+    border-radius: 2px;
+    display: inline-block;
+    vertical-align: middle;
+    margin-right: var(--space-2);
+    overflow: hidden;
+  }
+
+  .hit-rate-fill {
+    height: 100%;
+    border-radius: 2px;
+  }
+
+  .hit-rate-fill.good {
+    background: var(--accent-success);
+  }
+
+  .hit-rate-fill.warning {
+    background: var(--accent-warning);
+  }
+
+  .hit-rate-fill.bad {
+    background: var(--accent-error);
+  }
+`;
+
+export const buttonStyles: CSSResult = css`
+  .btn {
+    padding: var(--space-2) var(--space-4);
+    border-radius: var(--radius-md);
+    font-family: inherit;
+    font-size: 13px;
+    font-weight: 500;
+    cursor: pointer;
+    transition: all 0.15s ease;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: var(--space-2);
+  }
+
+  .btn-primary {
+    background: var(--accent-primary);
+    color: white;
+    border: none;
+  }
+
+  .btn-primary:hover {
+    background: #2563eb;
+  }
+
+  .btn-primary:active {
+    background: #1d4ed8;
+  }
+
+  .btn-secondary {
+    background: var(--bg-tertiary);
+    color: var(--text-primary);
+    border: 1px solid var(--border-default);
+  }
+
+  .btn-secondary:hover {
+    background: var(--bg-elevated);
+    border-color: var(--border-muted);
+  }
+
+  .btn:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+  }
+
+  .btn-row {
+    display: flex;
+    justify-content: flex-end;
+    gap: var(--space-2);
+    margin-top: var(--space-4);
+  }
+`;
+
+export const speedtestStyles: CSSResult = css`
+  .online-indicator {
+    display: inline-flex;
+    align-items: center;
+    gap: var(--space-2);
+    padding: var(--space-1) var(--space-3);
+    border-radius: 9999px;
+    font-size: 12px;
+    font-weight: 500;
+    margin-bottom: var(--space-4);
+  }
+
+  .online-indicator.online {
+    background: rgba(34, 197, 94, 0.1);
+    color: var(--accent-success);
+  }
+
+  .online-indicator.offline {
+    background: rgba(239, 68, 68, 0.1);
+    color: var(--accent-error);
+  }
+
+  .online-dot {
+    width: 6px;
+    height: 6px;
+    border-radius: 50%;
+    background: currentColor;
+  }
+
+  .speedtest-results {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+    gap: var(--space-4);
+    margin-top: var(--space-4);
+  }
+
+  .speedtest-metric {
+    text-align: center;
+    padding: var(--space-4);
+    background: var(--bg-tertiary);
+    border-radius: var(--radius-md);
+  }
+
+  .speedtest-value {
+    font-size: 24px;
+    font-weight: 600;
+    font-variant-numeric: tabular-nums;
+    color: var(--text-primary);
+    line-height: 1.2;
+  }
+
+  .speedtest-unit {
+    font-size: 12px;
+    color: var(--text-secondary);
+    margin-top: var(--space-1);
+  }
+
+  .speedtest-label {
+    font-size: 11px;
+    color: var(--text-tertiary);
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+    margin-top: var(--space-2);
+  }
+
+  .speed-bar {
+    height: 4px;
+    background: var(--bg-tertiary);
+    border-radius: 2px;
+    margin: var(--space-1) 0;
+    overflow: hidden;
+  }
+
+  .speed-fill {
+    height: 100%;
+    background: var(--accent-success);
+    border-radius: 2px;
+    transition: width 0.5s ease;
+  }
+
+  /* Speedtest progress indicator */
+  .speedtest-progress {
+    padding: var(--space-4) 0;
+  }
+
+  .progress-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: var(--space-3);
+  }
+
+  .progress-phase {
+    display: inline-flex;
+    align-items: center;
+    gap: var(--space-2);
+    color: var(--accent-info);
+    font-weight: 500;
+    font-size: 13px;
+  }
+
+  .progress-phase::before {
+    content: '';
+    width: 6px;
+    height: 6px;
+    border-radius: 50%;
+    background: currentColor;
+    animation: pulse 1s infinite;
+  }
+
+  .progress-time {
+    color: var(--text-tertiary);
+    font-size: 12px;
+    font-variant-numeric: tabular-nums;
+  }
+
+  .progress-bar {
+    height: 6px;
+    background: var(--bg-tertiary);
+    border-radius: 3px;
+    overflow: hidden;
+  }
+
+  .progress-fill {
+    height: 100%;
+    background: var(--accent-info);
+    border-radius: 3px;
+    transition: width 0.1s linear;
+  }
+
+  .progress-fill.complete {
+    background: var(--accent-success);
+  }
+
+  @keyframes pulse {
+    0%, 100% { opacity: 1; }
+    50% { opacity: 0.4; }
+  }
+`;
+
+export const statusBadgeStyles: CSSResult = css`
+  .status-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: var(--space-1);
+    padding: var(--space-1) var(--space-2);
+    border-radius: 9999px;
+    font-size: 11px;
+    font-weight: 500;
+  }
+
+  .status-badge.success {
+    background: rgba(34, 197, 94, 0.1);
+    color: var(--accent-success);
+  }
+
+  .status-badge.warning {
+    background: rgba(234, 179, 8, 0.1);
+    color: var(--accent-warning);
+  }
+
+  .status-badge.error {
+    background: rgba(239, 68, 68, 0.1);
+    color: var(--accent-error);
+  }
+
+  .status-badge.info {
+    background: rgba(6, 182, 212, 0.1);
+    color: var(--accent-info);
+  }
+
+  .status-badge .badge-dot {
+    width: 5px;
+    height: 5px;
+    border-radius: 50%;
+    background: currentColor;
+  }
+`;

ts_swdash/sw-dash-table.ts

@@ -0,0 +1,173 @@
+import { LitElement, html, css, property, state, customElement } from './plugins.js';
+import type { CSSResult, TemplateResult } from './plugins.js';
+import { sharedStyles, tableStyles } from './sw-dash-styles.js';
+
+export interface IColumnConfig {
+  key: string;
+  label: string;
+  sortable?: boolean;
+  formatter?: (value: any, row: any) => string;
+  className?: string;
+}
+
+/**
+ * Base sortable table component for sw-dash
+ */
+@customElement('sw-dash-table')
+export class SwDashTable extends LitElement {
+  public static styles: CSSResult[] = [
+    sharedStyles,
+    tableStyles,
+    css`
+      :host {
+        display: block;
+      }
+    `
+  ];
+
+  @property({ type: Array }) accessor columns: IColumnConfig[] = [];
+  @property({ type: Array }) accessor data: any[] = [];
+  @property({ type: String }) accessor filterPlaceholder = 'Filter...';
+  @property({ type: String }) accessor infoLabel = 'items';
+
+  @state() accessor sortColumn = '';
+  @state() accessor sortDirection: 'asc' | 'desc' = 'desc';
+  @state() accessor filterText = '';
+
+  // Utility formatters
+  static formatNumber(n: number): string {
+    return n.toLocaleString();
+  }
+
+  static formatBytes(bytes: number): string {
+    if (bytes === 0) return '0 B';
+    const k = 1024;
+    const sizes = ['B', 'KB', 'MB', 'GB'];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+  }
+
+  static formatTimestamp(ts: number): string {
+    if (!ts || ts === 0) return 'never';
+    const ago = Date.now() - ts;
+    if (ago < 60000) return Math.floor(ago / 1000) + 's ago';
+    if (ago < 3600000) return Math.floor(ago / 60000) + 'm ago';
+    if (ago < 86400000) return Math.floor(ago / 3600000) + 'h ago';
+    return new Date(ts).toLocaleDateString();
+  }
+
+  static getGaugeClass(rate: number): string {
+    if (rate >= 80) return 'good';
+    if (rate >= 50) return 'warning';
+    return 'bad';
+  }
+
+  private handleSort(column: string): void {
+    if (this.sortColumn === column) {
+      this.sortDirection = this.sortDirection === 'asc' ? 'desc' : 'asc';
+    } else {
+      this.sortColumn = column;
+      this.sortDirection = 'desc';
+    }
+  }
+
+  private handleFilter(e: Event): void {
+    this.filterText = (e.target as HTMLInputElement).value;
+  }
+
+  private getSortedFilteredData(): any[] {
+    let result = [...this.data];
+
+    // Filter
+    if (this.filterText) {
+      const search = this.filterText.toLowerCase();
+      result = result.filter(row => {
+        return this.columns.some(col => {
+          const val = row[col.key];
+          if (val == null) return false;
+          return String(val).toLowerCase().includes(search);
+        });
+      });
+    }
+
+    // Sort
+    if (this.sortColumn) {
+      result.sort((a, b) => {
+        let valA = a[this.sortColumn];
+        let valB = b[this.sortColumn];
+        if (typeof valA === 'string') valA = valA.toLowerCase();
+        if (typeof valB === 'string') valB = valB.toLowerCase();
+        if (valA < valB) return this.sortDirection === 'asc' ? -1 : 1;
+        if (valA > valB) return this.sortDirection === 'asc' ? 1 : -1;
+        return 0;
+      });
+    }
+
+    return result;
+  }
+
+  private renderHitRateBar(rate: number): TemplateResult {
+    const cls = SwDashTable.getGaugeClass(rate);
+    return html`
+      <span class="hit-rate-bar">
+        <span class="hit-rate-fill ${cls}" style="width: ${rate}%"></span>
+      </span>${rate}%
+    `;
+  }
+
+  protected renderCellValue(value: any, row: any, column: IColumnConfig): any {
+    if (column.formatter) {
+      return column.formatter(value, row);
+    }
+    // Special handling for hitRate
+    if (column.key === 'hitRate') {
+      return this.renderHitRateBar(value);
+    }
+    return value;
+  }
+
+  public render(): TemplateResult {
+    const sortedData = this.getSortedFilteredData();
+
+    return html`
+      <div class="table-controls">
+        <input
+          type="text"
+          class="search-input"
+          placeholder="${this.filterPlaceholder}"
+          .value="${this.filterText}"
+          @input="${this.handleFilter}"
+        >
+        <span class="table-info">${sortedData.length} of ${this.data.length} ${this.infoLabel}</span>
+      </div>
+      <div class="table-container">
+        <table class="data-table">
+          <thead>
+            <tr>
+              ${this.columns.map(col => html`
+                <th
+                  class="${this.sortColumn === col.key ? 'sorted' : ''}"
+                  @click="${() => col.sortable !== false && this.handleSort(col.key)}"
+                >
+                  ${col.label}
+                  ${col.sortable !== false ? html`
+                    <span class="sort-icon">${this.sortColumn === col.key && this.sortDirection === 'asc' ? '↑' : '↓'}</span>
+                  ` : ''}
+                </th>
+              `)}
+            </tr>
+          </thead>
+          <tbody>
+            ${sortedData.map(row => html`
+              <tr>
+                ${this.columns.map(col => html`
+                  <td class="${col.className || ''}">${this.renderCellValue(row[col.key], row, col)}</td>
+                `)}
+              </tr>
+            `)}
+          </tbody>
+        </table>
+      </div>
+    `;
+  }
+}

ts_swdash/sw-dash-types.ts

@@ -0,0 +1,52 @@
+import { LitElement, html, css, property, customElement } from './plugins.js';
+import type { CSSResult, TemplateResult } from './plugins.js';
+import { sharedStyles, tableStyles } from './sw-dash-styles.js';
+import { SwDashTable } from './sw-dash-table.js';
+import type { IColumnConfig } from './sw-dash-table.js';
+
+export interface IContentTypeStats {
+  contentType: string;
+  totalResources: number;
+  totalSize: number;
+  totalHits: number;
+  totalMisses: number;
+  hitRate: number;
+}
+
+/**
+ * Content types table view component
+ */
+@customElement('sw-dash-types')
+export class SwDashTypes extends LitElement {
+  public static styles: CSSResult[] = [
+    sharedStyles,
+    tableStyles,
+    css`
+      :host {
+        display: block;
+      }
+    `
+  ];
+
+  @property({ type: Array }) accessor contentTypes: IContentTypeStats[] = [];
+
+  private columns: IColumnConfig[] = [
+    { key: 'contentType', label: 'Content Type' },
+    { key: 'totalResources', label: 'Resources', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'totalSize', label: 'Total Size', className: 'num', formatter: SwDashTable.formatBytes },
+    { key: 'totalHits', label: 'Hits', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'totalMisses', label: 'Misses', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'hitRate', label: 'Hit Rate' },
+  ];
+
+  public render(): TemplateResult {
+    return html`
+      <sw-dash-table
+        .columns="${this.columns}"
+        .data="${this.contentTypes}"
+        filterPlaceholder="Filter types..."
+        infoLabel="content types"
+      ></sw-dash-table>
+    `;
+  }
+}

ts_swdash/sw-dash-urls.ts

@@ -0,0 +1,66 @@
+import { LitElement, html, css, property, customElement } from './plugins.js';
+import type { CSSResult, TemplateResult } from './plugins.js';
+import { sharedStyles, tableStyles } from './sw-dash-styles.js';
+import { SwDashTable } from './sw-dash-table.js';
+import type { IColumnConfig } from './sw-dash-table.js';
+
+export interface ICachedResource {
+  url: string;
+  domain: string;
+  contentType: string;
+  size: number;
+  hitCount: number;
+  missCount: number;
+  lastAccessed: number;
+  cachedAt: number;
+  hitRate?: number;
+}
+
+/**
+ * URLs table view component
+ */
+@customElement('sw-dash-urls')
+export class SwDashUrls extends LitElement {
+  public static styles: CSSResult[] = [
+    sharedStyles,
+    tableStyles,
+    css`
+      :host {
+        display: block;
+      }
+    `
+  ];
+
+  @property({ type: Array }) accessor resources: ICachedResource[] = [];
+
+  private columns: IColumnConfig[] = [
+    { key: 'url', label: 'URL', className: 'url' },
+    { key: 'contentType', label: 'Type' },
+    { key: 'size', label: 'Size', className: 'num', formatter: SwDashTable.formatBytes },
+    { key: 'hitCount', label: 'Hits', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'missCount', label: 'Misses', className: 'num', formatter: SwDashTable.formatNumber },
+    { key: 'hitRate', label: 'Hit Rate' },
+    { key: 'lastAccessed', label: 'Last Access', formatter: SwDashTable.formatTimestamp },
+  ];
+
+  private getDataWithHitRate(): ICachedResource[] {
+    return this.resources.map(r => {
+      const total = r.hitCount + r.missCount;
+      return {
+        ...r,
+        hitRate: total > 0 ? Math.round((r.hitCount / total) * 100) : 0
+      };
+    });
+  }
+
+  public render(): TemplateResult {
+    return html`
+      <sw-dash-table
+        .columns="${this.columns}"
+        .data="${this.getDataWithHitRate()}"
+        filterPlaceholder="Filter URLs..."
+        infoLabel="resources"
+      ></sw-dash-table>
+    `;
+  }
+}

ts_web_inject/index.ts

@@ -3,12 +3,12 @@ import * as interfaces from '../dist_ts_interfaces/index.js';
 import { logger } from './typedserver_web.logger.js';
 logger.log('info', `TypedServer-Devtools initialized!`);
 
-import { TypedserverInfoscreen } from './typedserver_web.infoscreen.js';
+import { TypedserverStatusPill } from './typedserver_web.statuspill.js';
 
 export class ReloadChecker {
   public reloadJustified = false;
   public backendConnectionLost = false;
-  public infoscreen = new TypedserverInfoscreen();
+  public statusPill = new TypedserverStatusPill();
   public store = new plugins.webstore.WebStore({
     dbName: 'apiglobal__typedserver',
     storeName: 'apiglobal__typedserver',
@@ -17,14 +17,90 @@ export class ReloadChecker {
 
   public typedsocket: plugins.typedsocket.TypedSocket;
   public typedrouter = new plugins.typedrequest.TypedRouter();
+  private swStatusUnsubscribe: (() => void) | null = null;
 
-  constructor() {}
+  constructor() {
+    // Listen to browser online/offline events
+    window.addEventListener('online', () => {
+      this.statusPill.updateStatus({
+        source: 'network',
+        type: 'online',
+        message: 'Back online',
+        persist: false,
+        timestamp: Date.now(),
+      });
+    });
+
+    window.addEventListener('offline', () => {
+      this.statusPill.updateStatus({
+        source: 'network',
+        type: 'offline',
+        message: 'No internet connection',
+        persist: true,
+        timestamp: Date.now(),
+      });
+    });
+  }
 
   public async reload() {
     // this looks a bit hacky, but apparently is the safest way to really reload stuff
     window.location.reload();
   }
 
+  /**
+   * Subscribe to service worker status updates
+   */
+  public subscribeToServiceWorker(): void {
+    // Check if service worker client is available
+    if (globalThis.globalSw?.actionManager) {
+      this.swStatusUnsubscribe = globalThis.globalSw.actionManager.subscribeToStatusUpdates((status) => {
+        this.statusPill.updateStatus({
+          source: status.source,
+          type: status.type,
+          message: status.message,
+          details: status.details,
+          persist: status.persist || false,
+          timestamp: status.timestamp,
+        });
+      });
+      logger.log('info', 'Subscribed to service worker status updates');
+
+      // Get initial SW status
+      this.fetchServiceWorkerStatus();
+    } else {
+      logger.log('note', 'Service worker client not available yet, will retry...');
+      // Retry after a delay
+      setTimeout(() => this.subscribeToServiceWorker(), 2000);
+    }
+  }
+
+  /**
+   * Fetch and display initial service worker status
+   */
+  private async fetchServiceWorkerStatus(): Promise<void> {
+    if (!globalThis.globalSw?.actionManager) return;
+
+    try {
+      const status = await globalThis.globalSw.actionManager.getServiceWorkerStatus();
+      if (status) {
+        this.statusPill.updateStatus({
+          source: 'serviceworker',
+          type: status.isActive ? 'connected' : 'disconnected',
+          message: status.isActive ? 'Service worker active' : 'Service worker inactive',
+          details: {
+            cacheHitRate: status.cacheHitRate,
+            resourceCount: status.resourceCount,
+            connectionType: status.connectionType,
+          },
+          persist: false,
+          timestamp: Date.now(),
+        });
+      }
+    } catch (error) {
+      logger.log('warn', `Failed to get SW status: ${error}`);
+    }
+  }
+
   /**
    * starts the reload checker
    */
@@ -50,11 +126,23 @@ export class ReloadChecker {
     if (response?.status !== 200) {
       this.backendConnectionLost = true;
       logger.log('warn', `got a status ${response?.status}.`);
-      this.infoscreen.setText(`backend connection lost... Status ${response?.status}`);
+      this.statusPill.updateStatus({
+        source: 'backend',
+        type: 'disconnected',
+        message: `Backend connection lost (${response?.status || 'timeout'})`,
+        persist: true,
+        timestamp: Date.now(),
+      });
     }
     if (response?.status === 200 && this.backendConnectionLost) {
       this.backendConnectionLost = false;
-      this.infoscreen.setSuccess('regained connection to backend...');
+      this.statusPill.updateStatus({
+        source: 'backend',
+        type: 'connected',
+        message: 'Backend connection restored',
+        persist: false,
+        timestamp: Date.now(),
+      });
     }
     return response;
   }
@@ -69,23 +157,42 @@ export class ReloadChecker {
 
     if (reloadJustified) {
       this.store.set(this.storeKey, lastServerChange);
-      const reloadText = `upgrading... ${
-        globalThis.globalSw ? '(purging the sw cache first...)' : ''
-      }`;
-      this.infoscreen.setText(reloadText);
+      const hasSw = !!globalThis.globalSw;
+      this.statusPill.updateStatus({
+        source: 'serviceworker',
+        type: 'update',
+        message: hasSw ? 'Updating app...' : 'Upgrading...',
+        persist: true,
+        timestamp: Date.now(),
+      });
+
       if (globalThis.globalSw?.purgeCache) {
         await globalThis.globalSw.purgeCache();
+      } else if ('caches' in window) {
+        // Fallback: clear caches via Cache API when service worker client isn't initialized
+        try {
+          const cacheKeys = await caches.keys();
+          await Promise.all(cacheKeys.map(key => caches.delete(key)));
+          logger.log('ok', 'Cleared caches via Cache API fallback');
+        } catch (err) {
+          logger.log('warn', `Failed to clear caches via Cache API: ${err}`);
+        }
       } else {
-        console.log('globalThis.globalSw not found...');
+        console.log('globalThis.globalSw not found and Cache API not available...');
       }
-      this.infoscreen.setText(`cleaned caches`);
+
+      this.statusPill.updateStatus({
+        source: 'serviceworker',
+        type: 'cache',
+        message: 'Cache cleared, reloading...',
+        persist: true,
+        timestamp: Date.now(),
+      });
       await plugins.smartdelay.delayFor(200);
       this.reload();
       return;
     } else {
-      if (this.infoscreen) {
-        this.infoscreen.hide();
-      }
+      // All good, hide after brief show
       return;
     }
   }
@@ -107,10 +214,22 @@ export class ReloadChecker {
         console.log(`typedsocket status: ${statusArg}`);
         if (statusArg === 'disconnected' || statusArg === 'reconnecting') {
           this.backendConnectionLost = true;
-          this.infoscreen.setText(`typedsocket ${statusArg}!`);
+          this.statusPill.updateStatus({
+            source: 'backend',
+            type: statusArg === 'disconnected' ? 'disconnected' : 'reconnecting',
+            message: `TypedSocket ${statusArg}`,
+            persist: true,
+            timestamp: Date.now(),
+          });
         } else if (statusArg === 'connected' && this.backendConnectionLost) {
           this.backendConnectionLost = false;
-          this.infoscreen.setSuccess('typedsocket connected!');
+          this.statusPill.updateStatus({
+            source: 'backend',
+            type: 'connected',
+            message: 'TypedSocket connected',
+            persist: false,
+            timestamp: Date.now(),
+          });
           // lets check if a reload is necessary
           const getLatestServerChangeTime =
             this.typedsocket.createTypedRequest<interfaces.IReq_GetLatestServerChangeTime>(
@@ -128,9 +247,13 @@ export class ReloadChecker {
   public async start() {
     this.started = true;
     logger.log('info', `starting ReloadChecker...`);
+
+    // Subscribe to service worker status updates
+    this.subscribeToServiceWorker();
+
     while (this.started) {
       const response = await this.performHttpRequest();
-      if (response.status === 200) {
+      if (response?.status === 200) {
         logger.log('info', `ReloadChecker reached backend!`);
         await this.checkReload(parseInt(await response.text()));
         await this.connectTypedsocket();
@@ -141,6 +264,10 @@ export class ReloadChecker {
 
   public async stop() {
     this.started = false;
+    if (this.swStatusUnsubscribe) {
+      this.swStatusUnsubscribe();
+      this.swStatusUnsubscribe = null;
+    }
   }
 }
 

ts_web_inject/typedserver_web.statuspill.ts

@@ -0,0 +1,534 @@
+import { LitElement, html, css } from 'lit';
+import { customElement, property, state } from 'lit/decorators.js';
+import * as plugins from './typedserver_web.plugins.js';
+
+declare global {
+  interface HTMLElementTagNameMap {
+    'typedserver-statuspill': TypedserverStatusPill;
+  }
+}
+
+/**
+ * Status source types
+ */
+export type TStatusSource = 'backend' | 'serviceworker' | 'network';
+
+/**
+ * Status type
+ */
+export type TStatusType = 'connected' | 'disconnected' | 'reconnecting' | 'update' | 'cache' | 'error' | 'offline' | 'online';
+
+/**
+ * Status item with details
+ */
+export interface IStatusItem {
+  source: TStatusSource;
+  type: TStatusType;
+  message: string;
+  details?: {
+    version?: string;
+    cacheHitRate?: number;
+    resourceCount?: number;
+    connectionType?: string;
+    latencyMs?: number;
+  };
+  persist: boolean;
+  timestamp: number;
+}
+
+/**
+ * Modern status pill component that displays connection and service worker status
+ * - Shows at center-bottom on connectivity changes
+ * - Stays visible during error states
+ * - Expands on hover to show detailed status
+ */
+@customElement('typedserver-statuspill')
+export class TypedserverStatusPill extends LitElement {
+  // Current status items by source
+  @state() accessor backendStatus: IStatusItem | null = null;
+  @state() accessor swStatus: IStatusItem | null = null;
+  @state() accessor networkStatus: IStatusItem | null = null;
+
+  // UI state
+  @state() accessor visible = false;
+  @state() accessor expanded = false;
+  @state() accessor hasError = false;
+
+  // Hide timeout
+  private hideTimeout: number | null = null;
+  private appended = false;
+
+  public static styles = css`
+    * {
+      box-sizing: border-box;
+    }
+
+    :host {
+      --pill-bg: rgba(20, 20, 20, 0.9);
+      --pill-bg-error: rgba(180, 40, 40, 0.95);
+      --pill-bg-success: rgba(40, 140, 60, 0.95);
+      --pill-text: #fff;
+      --pill-text-muted: rgba(255, 255, 255, 0.7);
+      --pill-border: rgba(255, 255, 255, 0.1);
+      --pill-accent: #4af;
+      --pill-success: #4f8;
+      --pill-warning: #fa4;
+      --pill-error: #f44;
+    }
+
+    .pill {
+      position: fixed;
+      bottom: 20px;
+      left: 50%;
+      transform: translateX(-50%) translateY(100px);
+      background: var(--pill-bg);
+      backdrop-filter: blur(12px);
+      -webkit-backdrop-filter: blur(12px);
+      border-radius: 24px;
+      padding: 10px 20px;
+      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+      font-size: 13px;
+      color: var(--pill-text);
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      gap: 8px;
+      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+      opacity: 0;
+      pointer-events: none;
+      z-index: 10000;
+      max-width: 90vw;
+      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
+      border: 1px solid var(--pill-border);
+    }
+
+    .pill.visible {
+      transform: translateX(-50%) translateY(0);
+      opacity: 1;
+      pointer-events: auto;
+    }
+
+    .pill.error {
+      background: var(--pill-bg-error);
+    }
+
+    .pill.success {
+      background: var(--pill-bg-success);
+    }
+
+    .pill-main {
+      display: flex;
+      align-items: center;
+      gap: 12px;
+      white-space: nowrap;
+    }
+
+    .status-indicator {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+    }
+
+    .status-dot {
+      width: 8px;
+      height: 8px;
+      border-radius: 50%;
+      background: var(--pill-text-muted);
+      transition: background 0.3s;
+    }
+
+    .status-dot.connected {
+      background: var(--pill-success);
+      box-shadow: 0 0 6px var(--pill-success);
+    }
+
+    .status-dot.disconnected,
+    .status-dot.offline,
+    .status-dot.error {
+      background: var(--pill-error);
+      box-shadow: 0 0 6px var(--pill-error);
+    }
+
+    .status-dot.reconnecting,
+    .status-dot.update {
+      background: var(--pill-warning);
+      animation: pulse 1s infinite;
+    }
+
+    @keyframes pulse {
+      0%, 100% { opacity: 1; }
+      50% { opacity: 0.5; }
+    }
+
+    .status-label {
+      font-size: 12px;
+      font-weight: 500;
+      text-transform: uppercase;
+      letter-spacing: 0.5px;
+    }
+
+    .status-message {
+      color: var(--pill-text);
+      font-weight: 400;
+    }
+
+    .separator {
+      width: 1px;
+      height: 16px;
+      background: var(--pill-border);
+    }
+
+    .pill-expanded {
+      display: none;
+      width: 100%;
+      padding-top: 8px;
+      border-top: 1px solid var(--pill-border);
+      flex-direction: column;
+      gap: 6px;
+    }
+
+    .pill.expanded .pill-expanded {
+      display: flex;
+    }
+
+    .detail-row {
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      font-size: 12px;
+      gap: 20px;
+    }
+
+    .detail-label {
+      color: var(--pill-text-muted);
+    }
+
+    .detail-value {
+      color: var(--pill-text);
+      font-weight: 500;
+    }
+
+    .detail-value.success {
+      color: var(--pill-success);
+    }
+
+    .detail-value.error {
+      color: var(--pill-error);
+    }
+
+    .detail-value.warning {
+      color: var(--pill-warning);
+    }
+
+    /* Click hint */
+    .pill::after {
+      content: '';
+      position: absolute;
+      bottom: 4px;
+      left: 50%;
+      transform: translateX(-50%);
+      width: 32px;
+      height: 3px;
+      background: var(--pill-border);
+      border-radius: 2px;
+      transition: background 0.2s;
+    }
+
+    .pill:hover::after {
+      background: var(--pill-text-muted);
+    }
+  `;
+
+  /**
+   * Update status from a specific source
+   */
+  public updateStatus(status: IStatusItem): void {
+    // Store by source
+    switch (status.source) {
+      case 'backend':
+        this.backendStatus = status;
+        break;
+      case 'serviceworker':
+        this.swStatus = status;
+        break;
+      case 'network':
+        this.networkStatus = status;
+        break;
+    }
+
+    // Determine if we have any errors (should persist)
+    this.hasError = this.hasAnyError();
+
+    // Show the pill
+    this.show();
+
+    // Auto-hide after delay if not persistent
+    if (!status.persist && !this.hasError) {
+      this.scheduleHide(2500);
+    } else {
+      this.cancelHide();
+    }
+  }
+
+  /**
+   * Check if any status is an error state
+   */
+  private hasAnyError(): boolean {
+    const errorTypes: TStatusType[] = ['disconnected', 'error', 'offline'];
+    return (
+      (this.backendStatus && errorTypes.includes(this.backendStatus.type)) ||
+      (this.networkStatus && errorTypes.includes(this.networkStatus.type)) ||
+      false
+    );
+  }
+
+  /**
+   * Get overall status class
+   */
+  private getStatusClass(): string {
+    if (this.hasError) return 'error';
+
+    const latestStatus = this.getLatestStatus();
+    if (latestStatus?.type === 'connected' || latestStatus?.type === 'online') {
+      return 'success';
+    }
+    return '';
+  }
+
+  /**
+   * Get the most recent status
+   */
+  private getLatestStatus(): IStatusItem | null {
+    const statuses = [this.backendStatus, this.swStatus, this.networkStatus].filter(Boolean) as IStatusItem[];
+    if (statuses.length === 0) return null;
+    return statuses.reduce((latest, current) =>
+      current.timestamp > latest.timestamp ? current : latest
+    );
+  }
+
+  /**
+   * Show the pill
+   */
+  public show(): void {
+    if (!this.appended) {
+      document.body.appendChild(this);
+      this.appended = true;
+    }
+    // Small delay to ensure DOM update
+    requestAnimationFrame(() => {
+      this.visible = true;
+    });
+  }
+
+  /**
+   * Hide the pill
+   */
+  public hide(): void {
+    this.visible = false;
+    this.expanded = false;
+  }
+
+  /**
+   * Schedule auto-hide
+   */
+  private scheduleHide(delayMs: number): void {
+    this.cancelHide();
+    this.hideTimeout = window.setTimeout(() => {
+      if (!this.hasError) {
+        this.hide();
+      }
+    }, delayMs);
+  }
+
+  /**
+   * Cancel scheduled hide
+   */
+  private cancelHide(): void {
+    if (this.hideTimeout) {
+      clearTimeout(this.hideTimeout);
+      this.hideTimeout = null;
+    }
+  }
+
+  /**
+   * Toggle expanded state
+   */
+  private toggleExpanded(): void {
+    this.expanded = !this.expanded;
+    if (this.expanded) {
+      this.cancelHide();
+    }
+  }
+
+  /**
+   * Clear all status and hide
+   */
+  public clearStatus(): void {
+    this.backendStatus = null;
+    this.swStatus = null;
+    this.networkStatus = null;
+    this.hasError = false;
+    this.hide();
+  }
+
+  /**
+   * Set success message (auto-hides)
+   */
+  public setSuccess(message: string, source: TStatusSource = 'backend'): void {
+    this.updateStatus({
+      source,
+      type: 'connected',
+      message,
+      persist: false,
+      timestamp: Date.now(),
+    });
+  }
+
+  /**
+   * Set error message (persists)
+   */
+  public setError(message: string, source: TStatusSource = 'backend'): void {
+    this.updateStatus({
+      source,
+      type: 'error',
+      message,
+      persist: true,
+      timestamp: Date.now(),
+    });
+  }
+
+  /**
+   * Set transitional message (auto-hides)
+   */
+  public setText(message: string, source: TStatusSource = 'backend'): void {
+    this.updateStatus({
+      source,
+      type: 'reconnecting',
+      message,
+      persist: false,
+      timestamp: Date.now(),
+    });
+  }
+
+  /**
+   * Render status indicators
+   */
+  private renderStatusIndicators() {
+    const indicators = [];
+
+    if (this.networkStatus) {
+      indicators.push(html`
+        <div class="status-indicator">
+          <span class="status-dot ${this.networkStatus.type}"></span>
+          <span class="status-label">Net</span>
+        </div>
+      `);
+    }
+
+    if (this.backendStatus) {
+      indicators.push(html`
+        <div class="status-indicator">
+          <span class="status-dot ${this.backendStatus.type}"></span>
+          <span class="status-label">API</span>
+        </div>
+      `);
+    }
+
+    if (this.swStatus) {
+      indicators.push(html`
+        <div class="status-indicator">
+          <span class="status-dot ${this.swStatus.type}"></span>
+          <span class="status-label">SW</span>
+        </div>
+      `);
+    }
+
+    return indicators;
+  }
+
+  /**
+   * Render expanded details
+   */
+  private renderDetails() {
+    const details = [];
+
+    if (this.networkStatus) {
+      details.push(html`
+        <div class="detail-row">
+          <span class="detail-label">Network</span>
+          <span class="detail-value ${this.networkStatus.type === 'online' ? 'success' : 'error'}">
+            ${this.networkStatus.message}
+            ${this.networkStatus.details?.connectionType ? ` (${this.networkStatus.details.connectionType})` : ''}
+          </span>
+        </div>
+      `);
+    }
+
+    if (this.backendStatus) {
+      details.push(html`
+        <div class="detail-row">
+          <span class="detail-label">Backend</span>
+          <span class="detail-value ${this.backendStatus.type === 'connected' ? 'success' : this.backendStatus.type === 'reconnecting' ? 'warning' : 'error'}">
+            ${this.backendStatus.message}
+          </span>
+        </div>
+      `);
+    }
+
+    if (this.swStatus) {
+      details.push(html`
+        <div class="detail-row">
+          <span class="detail-label">Service Worker</span>
+          <span class="detail-value ${this.swStatus.type === 'connected' ? 'success' : this.swStatus.type === 'update' ? 'warning' : ''}">
+            ${this.swStatus.message}
+            ${this.swStatus.details?.version ? ` v${this.swStatus.details.version}` : ''}
+          </span>
+        </div>
+      `);
+
+      if (this.swStatus.details?.cacheHitRate !== undefined) {
+        details.push(html`
+          <div class="detail-row">
+            <span class="detail-label">Cache Hit Rate</span>
+            <span class="detail-value">${this.swStatus.details.cacheHitRate.toFixed(1)}%</span>
+          </div>
+        `);
+      }
+
+      if (this.swStatus.details?.resourceCount !== undefined) {
+        details.push(html`
+          <div class="detail-row">
+            <span class="detail-label">Cached Resources</span>
+            <span class="detail-value">${this.swStatus.details.resourceCount}</span>
+          </div>
+        `);
+      }
+    }
+
+    return details;
+  }
+
+  public render() {
+    const latestStatus = this.getLatestStatus();
+    const message = latestStatus?.message || '';
+    const indicators = this.renderStatusIndicators();
+
+    return html`
+      <div
+        class="pill ${this.visible ? 'visible' : ''} ${this.getStatusClass()} ${this.expanded ? 'expanded' : ''}"
+        @click="${this.toggleExpanded}"
+      >
+        <div class="pill-main">
+          ${indicators.length > 0 ? html`
+            ${indicators}
+            ${message ? html`<span class="separator"></span>` : ''}
+          ` : ''}
+          ${message ? html`<span class="status-message">${message}</span>` : ''}
+        </div>
+        <div class="pill-expanded">
+          ${this.renderDetails()}
+        </div>
+      </div>
+    `;
+  }
+}

ts_web_serviceworker/classes.backend.ts

@@ -1,6 +1,8 @@
 import * as plugins from './plugins.js';
 import * as interfaces from '../dist_ts_interfaces/index.js';
 import { logger } from './logging.js';
+import { getMetricsCollector } from './classes.metrics.js';
+import { getEventBus, ServiceWorkerEvent } from './classes.eventbus.js';
 
 // Add type definitions for ServiceWorker APIs
 declare global {
@@ -41,11 +43,15 @@ declare global {
  */
 export class ServiceworkerBackend {
   public deesComms = new plugins.deesComms.DeesComms();
+  private swSelf: ServiceWorkerGlobalScope;
+  private clientUpdateInterval: ReturnType<typeof setInterval> | null = null;
 
   constructor(optionsArg: {
     self: any;
     purgeCache: (reqArg: interfaces.serviceworker.IRequest_PurgeServiceWorkerCache['request']) => Promise<interfaces.serviceworker.IRequest_PurgeServiceWorkerCache['response']>;
   }) {
+    this.swSelf = optionsArg.self as unknown as ServiceWorkerGlobalScope;
+    const metrics = getMetricsCollector();
 
     // lets handle wakestuff
     optionsArg.self.addEventListener('message', (event) => {
@@ -53,16 +59,171 @@ export class ServiceworkerBackend {
         console.log('sw-backend: got wake up call');
       }
     });
+
     this.deesComms.createTypedHandler<interfaces.serviceworker.IRequest_Client_Serviceworker_ConnectionPolling>('broadcastConnectionPolling', async reqArg => {
+      // Record connection attempt
+      metrics.recordConnectionAttempt();
+      metrics.recordConnectionSuccess();
+      // Update connected clients count
+      await this.updateConnectedClientsCount();
       return {
         serviceworkerId: '123'
       };
-    })
+    });
 
     this.deesComms.createTypedHandler<interfaces.serviceworker.IRequest_PurgeServiceWorkerCache>('purgeServiceWorkerCache', async reqArg => {
       console.log(`Executing purge cache in serviceworker backend.`)
       return await optionsArg.purgeCache?.(reqArg);
     });
+
+    // Handler for getting current SW status
+    this.deesComms.createTypedHandler<interfaces.serviceworker.IRequest_Serviceworker_GetStatus>('serviceworker_getStatus', async () => {
+      const metrics = getMetricsCollector();
+      const metricsData = metrics.getMetrics();
+      return {
+        isActive: true,
+        isOnline: metricsData.speedtest.isOnline,
+        cacheHitRate: metrics.getCacheHitRate(),
+        resourceCount: metrics.getResourceCount(),
+        connectedClients: metricsData.connection.connectedClients,
+        lastUpdateCheck: metricsData.update.lastCheckTimestamp,
+      };
+    });
+
+    // Periodically update connected clients count
+    this.startClientCountUpdates();
+
+    // Subscribe to EventBus and broadcast status updates
+    this.setupEventBusSubscriptions();
+  }
+
+  /**
+   * Sets up subscriptions to EventBus events and broadcasts them to clients
+   */
+  private setupEventBusSubscriptions(): void {
+    const eventBus = getEventBus();
+
+    // Network status changes
+    eventBus.on(ServiceWorkerEvent.NETWORK_ONLINE, () => {
+      this.broadcastStatusUpdate({
+        source: 'network',
+        type: 'online',
+        message: 'Connection restored',
+        persist: false,
+        timestamp: Date.now(),
+      });
+    });
+
+    eventBus.on(ServiceWorkerEvent.NETWORK_OFFLINE, () => {
+      this.broadcastStatusUpdate({
+        source: 'network',
+        type: 'offline',
+        message: 'Connection lost - offline mode',
+        persist: true,
+        timestamp: Date.now(),
+      });
+    });
+
+    // Update events
+    eventBus.on(ServiceWorkerEvent.UPDATE_AVAILABLE, (_event, payload: any) => {
+      this.broadcastStatusUpdate({
+        source: 'serviceworker',
+        type: 'update',
+        message: 'Update available',
+        details: {
+          version: payload.newVersion,
+        },
+        persist: false,
+        timestamp: Date.now(),
+      });
+    });
+
+    eventBus.on(ServiceWorkerEvent.UPDATE_APPLIED, (_event, payload: any) => {
+      this.broadcastStatusUpdate({
+        source: 'serviceworker',
+        type: 'update',
+        message: 'Update applied',
+        details: {
+          version: payload.newVersion,
+        },
+        persist: false,
+        timestamp: Date.now(),
+      });
+    });
+
+    eventBus.on(ServiceWorkerEvent.UPDATE_ERROR, (_event, payload: any) => {
+      this.broadcastStatusUpdate({
+        source: 'serviceworker',
+        type: 'error',
+        message: `Update error: ${payload.error || 'Unknown error'}`,
+        persist: true,
+        timestamp: Date.now(),
+      });
+    });
+
+    // Cache invalidation
+    eventBus.on(ServiceWorkerEvent.CACHE_INVALIDATE_ALL, () => {
+      this.broadcastStatusUpdate({
+        source: 'serviceworker',
+        type: 'cache',
+        message: 'Clearing cache...',
+        persist: false,
+        timestamp: Date.now(),
+      });
+    });
+
+    // Lifecycle events
+    eventBus.on(ServiceWorkerEvent.ACTIVATE, () => {
+      this.broadcastStatusUpdate({
+        source: 'serviceworker',
+        type: 'connected',
+        message: 'Service worker activated',
+        persist: false,
+        timestamp: Date.now(),
+      });
+    });
+  }
+
+  /**
+   * Broadcasts a status update to all connected clients
+   */
+  public async broadcastStatusUpdate(status: interfaces.serviceworker.IStatusUpdate): Promise<void> {
+    try {
+      await this.deesComms.postMessage({
+        method: 'serviceworker_statusUpdate',
+        request: status,
+        messageId: `sw_status_${Date.now()}`
+      });
+      logger.log('info', `Status update broadcast: ${status.source}:${status.type} - ${status.message}`);
+    } catch (error) {
+      logger.log('warn', `Failed to broadcast status update: ${error}`);
+    }
+  }
+
+  /**
+   * Start periodic updates of connected client count
+   */
+  private startClientCountUpdates(): void {
+    // Update immediately
+    this.updateConnectedClientsCount();
+
+    // Then update every 5 seconds
+    this.clientUpdateInterval = setInterval(() => {
+      this.updateConnectedClientsCount();
+    }, 5000);
+  }
+
+  /**
+   * Update the connected clients count using the Clients API
+   */
+  private async updateConnectedClientsCount(): Promise<void> {
+    try {
+      const clients = await this.swSelf.clients.matchAll({ type: 'window' });
+      const metrics = getMetricsCollector();
+      metrics.setConnectedClients(clients.length);
+    } catch (error) {
+      logger.log('warn', `Failed to update connected clients count: ${error}`);
+    }
   }
 
   /**
@@ -71,7 +232,7 @@ export class ServiceworkerBackend {
   public async triggerReloadAll() {
     try {
       logger.log('info', 'Triggering reload for all clients due to new version');
-      
+
       // Send update message via DeesComms
       // This will be picked up by clients that have registered a handler for 'serviceworker_newVersion'
       await this.deesComms.postMessage({
@@ -79,13 +240,15 @@ export class ServiceworkerBackend {
         request: {},
         messageId: `sw_update_${Date.now()}`
       });
-      
+
       // As a fallback, also use the clients API to reload clients that might not catch the broadcast
-      // We need to type-cast self since TypeScript doesn't recognize ServiceWorker API
-      const swSelf = self as unknown as ServiceWorkerGlobalScope;
-      const clients = await swSelf.clients.matchAll({ type: 'window' });
+      const clients = await this.swSelf.clients.matchAll({ type: 'window' });
       logger.log('info', `Found ${clients.length} clients to reload`);
-      
+
+      // Update metrics with current client count
+      const metrics = getMetricsCollector();
+      metrics.setConnectedClients(clients.length);
+
       for (const client of clients) {
         if ('navigate' in client) {
           // For modern browsers, navigate to the same URL to trigger reload

ts_web_serviceworker/classes.cachemanager.ts

@@ -2,6 +2,10 @@ import * as plugins from './plugins.js';
 import * as interfaces from './env.js';
 import { logger } from './logging.js';
 import { ServiceWorker } from './classes.serviceworker.js';
+import { getMetricsCollector } from './classes.metrics.js';
+import { getEventBus, ServiceWorkerEvent } from './classes.eventbus.js';
+import { getErrorHandler, ServiceWorkerErrorType } from './classes.errorhandler.js';
+import { getDashboardGenerator } from './classes.dashboard.js';
 
 export class CacheManager {
   public losslessServiceWorkerRef: ServiceWorker;
@@ -10,9 +14,113 @@ export class CacheManager {
     runtimeCacheName: 'runtime'
   };
 
+  // Request deduplication: tracks in-flight requests to prevent duplicate fetches
+  private inFlightRequests: Map<string, Promise<Response>> = new Map();
+  private readonly INFLIGHT_CLEANUP_INTERVAL = 30000; // 30 seconds
+  private cleanupIntervalId: ReturnType<typeof setInterval> | null = null;
+
   constructor(losslessServiceWorkerRefArg: ServiceWorker) {
     this.losslessServiceWorkerRef = losslessServiceWorkerRefArg;
     this._setupCache();
+    this._setupInFlightCleanup();
+  }
+
+  /**
+   * Sets up periodic cleanup of stale in-flight request entries
+   */
+  private _setupInFlightCleanup(): void {
+    // Clean up stale entries periodically
+    this.cleanupIntervalId = setInterval(() => {
+      // The Map should naturally clean up via .finally(), but this is a safety net
+      if (this.inFlightRequests.size > 100) {
+        logger.log('warn', `In-flight requests map has ${this.inFlightRequests.size} entries, clearing...`);
+        this.inFlightRequests.clear();
+      }
+    }, this.INFLIGHT_CLEANUP_INTERVAL);
+  }
+
+  /**
+   * Fetches a request with deduplication - coalesces identical concurrent requests
+   */
+  private async fetchWithDeduplication(request: Request): Promise<Response> {
+    const key = `${request.method}:${request.url}`;
+    const metrics = getMetricsCollector();
+    const eventBus = getEventBus();
+
+    // Check if we already have an in-flight request for this URL
+    const existingRequest = this.inFlightRequests.get(key);
+    if (existingRequest) {
+      logger.log('note', `Deduplicating request for ${request.url}`);
+      try {
+        const response = await existingRequest;
+        // Clone the response since it may have been consumed
+        return response.clone();
+      } catch (error) {
+        // If the original request failed, we should try again
+        this.inFlightRequests.delete(key);
+        throw error;
+      }
+    }
+
+    // Record the new request
+    metrics.recordRequest(request.url);
+    eventBus.emit(ServiceWorkerEvent.NETWORK_REQUEST_START, {
+      url: request.url,
+      method: request.method,
+    });
+
+    const startTime = Date.now();
+
+    // Create a new fetch promise and track it
+    const fetchPromise = fetch(request)
+      .then(async (response) => {
+        const duration = Date.now() - startTime;
+
+        // Try to get response size
+        const contentLength = response.headers.get('content-length');
+        const bytes = contentLength ? parseInt(contentLength, 10) : 0;
+
+        metrics.recordRequestSuccess(request.url, duration, bytes);
+        eventBus.emit(ServiceWorkerEvent.NETWORK_REQUEST_COMPLETE, {
+          url: request.url,
+          method: request.method,
+          status: response.status,
+          duration,
+          bytes,
+        });
+
+        return response;
+      })
+      .catch((error) => {
+        const duration = Date.now() - startTime;
+        const errorHandler = getErrorHandler();
+
+        errorHandler.handleNetworkError(
+          `Fetch failed for ${request.url}: ${error?.message || error}`,
+          request.url,
+          error instanceof Error ? error : undefined,
+          { method: request.method, duration }
+        );
+
+        metrics.recordRequestFailure(request.url, error?.message);
+        eventBus.emit(ServiceWorkerEvent.NETWORK_REQUEST_ERROR, {
+          url: request.url,
+          method: request.method,
+          duration,
+          error: error?.message || 'Unknown error',
+        });
+
+        throw error;
+      })
+      .finally(() => {
+        // Remove from in-flight requests when done
+        this.inFlightRequests.delete(key);
+      });
+
+    // Track the in-flight request
+    this.inFlightRequests.set(key, fetchPromise);
+
+    return fetchPromise;
   }
 
   /**
@@ -96,6 +204,28 @@ export class CacheManager {
         const originalRequest: Request = fetchEventArg.request;
         const parsedUrl = new URL(originalRequest.url);
 
+        // Handle dashboard routes - serve directly from service worker
+        if (parsedUrl.pathname === '/sw-dash' || parsedUrl.pathname === '/sw-dash/') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(Promise.resolve(dashboard.serveDashboard()));
+          return;
+        }
+        if (parsedUrl.pathname === '/sw-dash/metrics') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(Promise.resolve(dashboard.serveMetrics()));
+          return;
+        }
+        if (parsedUrl.pathname === '/sw-dash/speedtest') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(dashboard.runSpeedtest());
+          return;
+        }
+        if (parsedUrl.pathname === '/sw-dash/resources') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(Promise.resolve(dashboard.serveResources()));
+          return;
+        }
+
         // Block requests that we don't want the service worker to handle.
         if (
           parsedUrl.hostname.includes('paddle.com') ||
@@ -128,16 +258,32 @@ export class CacheManager {
 
           const matchRequest = createMatchRequest(originalRequest);
           const cachedResponse = await caches.match(matchRequest);
+          const metrics = getMetricsCollector();
+          const eventBus = getEventBus();
+
           if (cachedResponse) {
+            // Record cache hit
+            const contentLength = cachedResponse.headers.get('content-length');
+            const bytes = contentLength ? parseInt(contentLength, 10) : 0;
+            const contentType = cachedResponse.headers.get('content-type') || 'unknown';
+            metrics.recordCacheHit(matchRequest.url, bytes);
+            metrics.recordResourceAccess(matchRequest.url, true, contentType, bytes);
+            eventBus.emitCacheHit(matchRequest.url, bytes);
+
             logger.log('ok', `CACHED: Found cached response for ${matchRequest.url}`);
             done.resolve(cachedResponse);
             return;
           }
 
+          // Record cache miss
+          metrics.recordCacheMiss(matchRequest.url);
+          eventBus.emitCacheMiss(matchRequest.url);
+
           logger.log('info', `NOTYETCACHED: Trying to cache ${matchRequest.url}`);
           let newResponse: Response;
           try {
-            newResponse = await fetch(matchRequest);
+            // Use deduplicated fetch to prevent concurrent requests for the same resource
+            newResponse = await this.fetchWithDeduplication(matchRequest);
           } catch (err: any) {
             logger.log('error', `Fetch error for ${matchRequest.url}: ${err}`);
             newResponse = await create500Response(matchRequest, new Response(err.message));
@@ -196,6 +342,12 @@ export class CacheManager {
               });
 
               await cache.put(matchRequest, newCachedResponse);
+
+              // Record resource access for per-resource tracking
+              const cachedContentType = newResponse.headers.get('content-type') || 'unknown';
+              const cachedSize = bodyBlob.size;
+              metrics.recordResourceAccess(matchRequest.url, false, cachedContentType, cachedSize);
+
               logger.log('ok', `NOWCACHED: Cached response for ${matchRequest.url} for subsequent requests!`);
               done.resolve(newResponse);
             } catch (err) {

ts_web_serviceworker/classes.config.ts

@@ -0,0 +1,232 @@
+import * as plugins from './plugins.js';
+
+/**
+ * Configuration interface for service worker settings
+ */
+export interface IServiceWorkerConfig {
+  // Cache settings
+  cache: {
+    maxAge: number;           // Maximum cache age in milliseconds (default: 24 hours)
+    offlineGracePeriod: number; // Grace period when offline (default: 7 days)
+    runtimeCacheName: string;   // Name of the runtime cache
+  };
+
+  // Update check settings
+  update: {
+    minCheckInterval: number;   // Minimum interval between update checks (default: 100 seconds)
+    debounceTime: number;       // Debounce time for update tasks (default: 2000ms)
+    revalidationDebounce: number; // Debounce time for revalidation (default: 6000ms)
+  };
+
+  // Network settings
+  network: {
+    requestTimeout: number;     // Default request timeout (default: 5000ms)
+    maxRetries: number;         // Maximum retry attempts (default: 3)
+    retryDelay: number;         // Delay between retries (default: 1000ms)
+  };
+
+  // Blocked domains - requests to these domains bypass the service worker
+  blockedDomains: string[];
+
+  // Blocked paths - requests with these path prefixes bypass the service worker
+  blockedPaths: string[];
+
+  // External cacheable domains - external domains that should be cached
+  cacheableDomains: string[];
+}
+
+/**
+ * Default configuration values
+ */
+const DEFAULT_CONFIG: IServiceWorkerConfig = {
+  cache: {
+    maxAge: 24 * 60 * 60 * 1000, // 24 hours
+    offlineGracePeriod: 7 * 24 * 60 * 60 * 1000, // 7 days
+    runtimeCacheName: 'runtime',
+  },
+  update: {
+    minCheckInterval: 100000, // 100 seconds
+    debounceTime: 2000,
+    revalidationDebounce: 6000,
+  },
+  network: {
+    requestTimeout: 5000,
+    maxRetries: 3,
+    retryDelay: 1000,
+  },
+  blockedDomains: [
+    'paddle.com',
+    'paypal.com',
+    'reception.lossless.one',
+    'umami.',
+  ],
+  blockedPaths: [
+    '/socket.io',
+    '/api/',
+    'smartserve/reloadcheck',
+  ],
+  cacheableDomains: [
+    'assetbroker.',
+    'unpkg.com',
+    'fonts.googleapis.com',
+    'fonts.gstatic.com',
+  ],
+};
+
+/**
+ * ServiceWorkerConfig manages the configuration for the service worker.
+ * Configuration is persisted to WebStore and can be updated at runtime.
+ */
+export class ServiceWorkerConfig {
+  private static readonly STORE_KEY = 'sw_config';
+  private config: IServiceWorkerConfig;
+  private store: plugins.webstore.WebStore;
+
+  constructor(store: plugins.webstore.WebStore) {
+    this.store = store;
+    this.config = { ...DEFAULT_CONFIG };
+  }
+
+  /**
+   * Loads configuration from WebStore, falling back to defaults
+   */
+  public async load(): Promise<void> {
+    try {
+      if (await this.store.check(ServiceWorkerConfig.STORE_KEY)) {
+        const storedConfig = await this.store.get(ServiceWorkerConfig.STORE_KEY);
+        this.config = this.mergeConfig(DEFAULT_CONFIG, storedConfig);
+      }
+    } catch (error) {
+      console.warn('Failed to load service worker config, using defaults:', error);
+      this.config = { ...DEFAULT_CONFIG };
+    }
+  }
+
+  /**
+   * Saves current configuration to WebStore
+   */
+  public async save(): Promise<void> {
+    await this.store.set(ServiceWorkerConfig.STORE_KEY, this.config);
+  }
+
+  /**
+   * Gets the current configuration
+   */
+  public get(): IServiceWorkerConfig {
+    return this.config;
+  }
+
+  /**
+   * Updates configuration with partial values
+   */
+  public async update(partialConfig: Partial<IServiceWorkerConfig>): Promise<void> {
+    this.config = this.mergeConfig(this.config, partialConfig);
+    await this.save();
+  }
+
+  /**
+   * Resets configuration to defaults
+   */
+  public async reset(): Promise<void> {
+    this.config = { ...DEFAULT_CONFIG };
+    await this.save();
+  }
+
+  // Getters for common configuration values
+  public get cacheMaxAge(): number {
+    return this.config.cache.maxAge;
+  }
+
+  public get offlineGracePeriod(): number {
+    return this.config.cache.offlineGracePeriod;
+  }
+
+  public get runtimeCacheName(): string {
+    return this.config.cache.runtimeCacheName;
+  }
+
+  public get minCheckInterval(): number {
+    return this.config.update.minCheckInterval;
+  }
+
+  public get updateDebounceTime(): number {
+    return this.config.update.debounceTime;
+  }
+
+  public get revalidationDebounce(): number {
+    return this.config.update.revalidationDebounce;
+  }
+
+  public get requestTimeout(): number {
+    return this.config.network.requestTimeout;
+  }
+
+  public get maxRetries(): number {
+    return this.config.network.maxRetries;
+  }
+
+  public get retryDelay(): number {
+    return this.config.network.retryDelay;
+  }
+
+  /**
+   * Checks if a URL should be blocked from service worker handling
+   */
+  public shouldBlockUrl(url: string): boolean {
+    try {
+      const parsedUrl = new URL(url);
+
+      // Check blocked domains
+      for (const domain of this.config.blockedDomains) {
+        if (parsedUrl.hostname.includes(domain)) {
+          return true;
+        }
+      }
+
+      // Check blocked paths
+      for (const path of this.config.blockedPaths) {
+        if (parsedUrl.pathname.includes(path)) {
+          return true;
+        }
+      }
+
+      // Check if URL starts with blocked domain pattern
+      if (url.startsWith('https://umami.')) {
+        return true;
+      }
+
+      return false;
+    } catch {
+      return false;
+    }
+  }
+
+  /**
+   * Checks if an external URL should be cached
+   */
+  public shouldCacheExternalUrl(url: string): boolean {
+    for (const domain of this.config.cacheableDomains) {
+      if (url.includes(domain)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Deep merges two configuration objects
+   */
+  private mergeConfig(
+    base: IServiceWorkerConfig,
+    override: Partial<IServiceWorkerConfig>
+  ): IServiceWorkerConfig {
+    return {
+      cache: { ...base.cache, ...override.cache },
+      update: { ...base.update, ...override.update },
+      network: { ...base.network, ...override.network },
+      blockedDomains: override.blockedDomains ?? base.blockedDomains,
+      blockedPaths: override.blockedPaths ?? base.blockedPaths,
+      cacheableDomains: override.cacheableDomains ?? base.cacheableDomains,
+    };
+  }
+}

ts_web_serviceworker/classes.dashboard.ts

@@ -0,0 +1,202 @@
+import { getMetricsCollector } from './classes.metrics.js';
+import { getServiceWorkerInstance } from './init.js';
+import * as interfaces from './env.js';
+
+/**
+ * Dashboard generator that creates a terminal-like metrics display
+ * served directly from the service worker as a single-page app
+ */
+export class DashboardGenerator {
+  /**
+   * Serves the dashboard HTML page
+   */
+  public serveDashboard(): Response {
+    return new Response(this.generateDashboardHtml(), {
+      headers: {
+        'Content-Type': 'text/html; charset=utf-8',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  /**
+   * Serves the metrics JSON endpoint
+   */
+  public serveMetrics(): Response {
+    return new Response(this.generateMetricsJson(), {
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  /**
+   * Serves detailed resource data for the SPA views
+   */
+  public serveResources(): Response {
+    return new Response(this.generateResourcesJson(), {
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  // Speedtest configuration
+  private static readonly TEST_DURATION_MS = 5000;  // 5 seconds per test
+  private static readonly CHUNK_SIZE_KB = 64;       // 64KB chunks
+
+  /**
+   * Runs a time-based speedtest and returns the results
+   * Each test (download/upload) runs for TEST_DURATION_MS, transferring chunks continuously
+   */
+  public async runSpeedtest(): Promise<Response> {
+    const metrics = getMetricsCollector();
+    const results: {
+      latency?: { durationMs: number };
+      download?: { durationMs: number; speedMbps: number; bytesTransferred: number };
+      upload?: { durationMs: number; speedMbps: number; bytesTransferred: number };
+      error?: string;
+      isOnline: boolean;
+    } = { isOnline: false };
+
+    try {
+      const sw = getServiceWorkerInstance();
+
+      // Check if TypedSocket is connected
+      if (!sw.typedsocket) {
+        results.error = 'TypedSocket not connected';
+        return new Response(JSON.stringify(results), {
+          headers: {
+            'Content-Type': 'application/json',
+            'Cache-Control': 'no-store',
+          },
+        });
+      }
+
+      // Create typed request for speedtest
+      const speedtestRequest = sw.typedsocket.createTypedRequest<
+        interfaces.serviceworker.IRequest_Serviceworker_Speedtest
+      >('serviceworker_speedtest');
+
+      // Latency test - simple ping
+      const latencyStart = Date.now();
+      await speedtestRequest.fire({ type: 'latency' });
+      const latencyDuration = Date.now() - latencyStart;
+      results.latency = { durationMs: latencyDuration };
+      metrics.recordSpeedtest('latency', latencyDuration);
+      results.isOnline = true;
+      metrics.setOnlineStatus(true);
+
+      // Download test - request chunks for TEST_DURATION_MS
+      {
+        const downloadStart = Date.now();
+        let totalBytes = 0;
+        while (Date.now() - downloadStart < DashboardGenerator.TEST_DURATION_MS) {
+          const chunkResult = await speedtestRequest.fire({
+            type: 'download_chunk',
+            chunkSizeKB: DashboardGenerator.CHUNK_SIZE_KB,
+          });
+          totalBytes += chunkResult.bytesTransferred;
+        }
+        const downloadDuration = Date.now() - downloadStart;
+        const downloadSpeedMbps = downloadDuration > 0 ? (totalBytes * 8) / (downloadDuration * 1000) : 0;
+        results.download = { durationMs: downloadDuration, speedMbps: downloadSpeedMbps, bytesTransferred: totalBytes };
+        metrics.recordSpeedtest('download', downloadSpeedMbps);
+      }
+
+      // Upload test - send chunks for TEST_DURATION_MS
+      {
+        const uploadPayload = 'x'.repeat(DashboardGenerator.CHUNK_SIZE_KB * 1024);
+        const uploadStart = Date.now();
+        let totalBytes = 0;
+        while (Date.now() - uploadStart < DashboardGenerator.TEST_DURATION_MS) {
+          const chunkResult = await speedtestRequest.fire({
+            type: 'upload_chunk',
+            payload: uploadPayload,
+          });
+          totalBytes += chunkResult.bytesTransferred;
+        }
+        const uploadDuration = Date.now() - uploadStart;
+        const uploadSpeedMbps = uploadDuration > 0 ? (totalBytes * 8) / (uploadDuration * 1000) : 0;
+        results.upload = { durationMs: uploadDuration, speedMbps: uploadSpeedMbps, bytesTransferred: totalBytes };
+        metrics.recordSpeedtest('upload', uploadSpeedMbps);
+      }
+
+    } catch (error) {
+      results.error = error instanceof Error ? error.message : String(error);
+      results.isOnline = false;
+      metrics.setOnlineStatus(false);
+    }
+
+    return new Response(JSON.stringify(results), {
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  /**
+   * Generates JSON metrics response
+   */
+  public generateMetricsJson(): string {
+    const metrics = getMetricsCollector();
+    return JSON.stringify({
+      ...metrics.getMetrics(),
+      cacheHitRate: metrics.getCacheHitRate(),
+      networkSuccessRate: metrics.getNetworkSuccessRate(),
+      resourceCount: metrics.getResourceCount(),
+      summary: metrics.getSummary(),
+    });
+  }
+
+  /**
+   * Generates JSON response with detailed resource data
+   */
+  public generateResourcesJson(): string {
+    const metrics = getMetricsCollector();
+    return JSON.stringify({
+      resources: metrics.getCachedResources(),
+      domains: metrics.getDomainStats(),
+      contentTypes: metrics.getContentTypeStats(),
+      resourceCount: metrics.getResourceCount(),
+    });
+  }
+
+  /**
+   * Generates a minimal HTML shell that loads the Lit-based dashboard bundle
+   */
+  public generateDashboardHtml(): string {
+    return `<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>SW Dashboard</title>
+  <style>
+    * { margin: 0; padding: 0; box-sizing: border-box; }
+    body {
+      background: #0a0a0a;
+      min-height: 100vh;
+    }
+  </style>
+</head>
+<body>
+  <sw-dash-app></sw-dash-app>
+  <script type="module" src="/sw-dash/bundle.js"></script>
+</body>
+</html>`;
+  }
+
+}
+
+// Export singleton getter
+let dashboardInstance: DashboardGenerator | null = null;
+export const getDashboardGenerator = (): DashboardGenerator => {
+  if (!dashboardInstance) {
+    dashboardInstance = new DashboardGenerator();
+  }
+  return dashboardInstance;
+};

ts_web_serviceworker/classes.errorhandler.ts

@@ -0,0 +1,333 @@
+import { logger } from './logging.js';
+
+/**
+ * Error types for categorizing service worker errors
+ */
+export enum ServiceWorkerErrorType {
+  NETWORK = 'NETWORK',
+  CACHE = 'CACHE',
+  UPDATE = 'UPDATE',
+  CONNECTION = 'CONNECTION',
+  TIMEOUT = 'TIMEOUT',
+  UNKNOWN = 'UNKNOWN',
+}
+
+/**
+ * Error severity levels
+ */
+export enum ErrorSeverity {
+  DEBUG = 'debug',
+  INFO = 'info',
+  WARN = 'warn',
+  ERROR = 'error',
+  FATAL = 'fatal',
+}
+
+/**
+ * Interface for error context
+ */
+export interface IErrorContext {
+  url?: string;
+  method?: string;
+  statusCode?: number;
+  attempt?: number;
+  maxAttempts?: number;
+  duration?: number;
+  componentName?: string;
+  additionalInfo?: Record<string, unknown>;
+}
+
+/**
+ * Service Worker Error class with type categorization and context
+ */
+export class ServiceWorkerError extends Error {
+  public readonly type: ServiceWorkerErrorType;
+  public readonly severity: ErrorSeverity;
+  public readonly context: IErrorContext;
+  public readonly timestamp: number;
+  public readonly originalError?: Error;
+
+  constructor(
+    message: string,
+    type: ServiceWorkerErrorType = ServiceWorkerErrorType.UNKNOWN,
+    severity: ErrorSeverity = ErrorSeverity.ERROR,
+    context: IErrorContext = {},
+    originalError?: Error
+  ) {
+    super(message);
+    this.name = 'ServiceWorkerError';
+    this.type = type;
+    this.severity = severity;
+    this.context = context;
+    this.timestamp = Date.now();
+    this.originalError = originalError;
+
+    // Maintain proper stack trace in V8 environments
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(this, ServiceWorkerError);
+    }
+  }
+
+  /**
+   * Creates a formatted log message
+   */
+  public toLogMessage(): string {
+    const parts = [
+      `[${this.type}]`,
+      this.message,
+    ];
+
+    if (this.context.url) {
+      parts.push(`URL: ${this.context.url}`);
+    }
+    if (this.context.method) {
+      parts.push(`Method: ${this.context.method}`);
+    }
+    if (this.context.statusCode !== undefined) {
+      parts.push(`Status: ${this.context.statusCode}`);
+    }
+    if (this.context.attempt !== undefined && this.context.maxAttempts !== undefined) {
+      parts.push(`Attempt: ${this.context.attempt}/${this.context.maxAttempts}`);
+    }
+    if (this.context.duration !== undefined) {
+      parts.push(`Duration: ${this.context.duration}ms`);
+    }
+
+    return parts.join(' | ');
+  }
+
+  /**
+   * Converts to a plain object for serialization
+   */
+  public toJSON(): Record<string, unknown> {
+    return {
+      name: this.name,
+      message: this.message,
+      type: this.type,
+      severity: this.severity,
+      context: this.context,
+      timestamp: this.timestamp,
+      stack: this.stack,
+      originalError: this.originalError?.message,
+    };
+  }
+}
+
+/**
+ * Error handler for consistent error handling across service worker components
+ */
+export class ErrorHandler {
+  private static instance: ErrorHandler;
+  private errorHistory: ServiceWorkerError[] = [];
+  private readonly maxHistorySize = 100;
+
+  private constructor() {}
+
+  /**
+   * Gets the singleton instance
+   */
+  public static getInstance(): ErrorHandler {
+    if (!ErrorHandler.instance) {
+      ErrorHandler.instance = new ErrorHandler();
+    }
+    return ErrorHandler.instance;
+  }
+
+  /**
+   * Handles an error with consistent logging and tracking
+   */
+  public handle(
+    error: Error | ServiceWorkerError | string,
+    type: ServiceWorkerErrorType = ServiceWorkerErrorType.UNKNOWN,
+    severity: ErrorSeverity = ErrorSeverity.ERROR,
+    context: IErrorContext = {}
+  ): ServiceWorkerError {
+    let swError: ServiceWorkerError;
+
+    if (error instanceof ServiceWorkerError) {
+      swError = error;
+    } else if (error instanceof Error) {
+      swError = new ServiceWorkerError(error.message, type, severity, context, error);
+    } else {
+      swError = new ServiceWorkerError(String(error), type, severity, context);
+    }
+
+    // Log the error
+    this.logError(swError);
+
+    // Track the error
+    this.trackError(swError);
+
+    return swError;
+  }
+
+  /**
+   * Creates and handles a network error
+   */
+  public handleNetworkError(
+    message: string,
+    url: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.NETWORK,
+      ErrorSeverity.WARN,
+      { url, ...context }
+    );
+  }
+
+  /**
+   * Creates and handles a cache error
+   */
+  public handleCacheError(
+    message: string,
+    url?: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.CACHE,
+      ErrorSeverity.ERROR,
+      { url, ...context }
+    );
+  }
+
+  /**
+   * Creates and handles an update error
+   */
+  public handleUpdateError(
+    message: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.UPDATE,
+      ErrorSeverity.ERROR,
+      context
+    );
+  }
+
+  /**
+   * Creates and handles a connection error
+   */
+  public handleConnectionError(
+    message: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.CONNECTION,
+      ErrorSeverity.WARN,
+      context
+    );
+  }
+
+  /**
+   * Creates and handles a timeout error
+   */
+  public handleTimeoutError(
+    message: string,
+    url?: string,
+    duration?: number,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      message,
+      ServiceWorkerErrorType.TIMEOUT,
+      ErrorSeverity.WARN,
+      { url, duration, ...context }
+    );
+  }
+
+  /**
+   * Gets the error history
+   */
+  public getErrorHistory(): ServiceWorkerError[] {
+    return [...this.errorHistory];
+  }
+
+  /**
+   * Gets errors by type
+   */
+  public getErrorsByType(type: ServiceWorkerErrorType): ServiceWorkerError[] {
+    return this.errorHistory.filter((e) => e.type === type);
+  }
+
+  /**
+   * Gets errors within a time range
+   */
+  public getRecentErrors(withinMs: number): ServiceWorkerError[] {
+    const cutoff = Date.now() - withinMs;
+    return this.errorHistory.filter((e) => e.timestamp >= cutoff);
+  }
+
+  /**
+   * Clears the error history
+   */
+  public clearHistory(): void {
+    this.errorHistory = [];
+  }
+
+  /**
+   * Gets error statistics
+   */
+  public getStats(): Record<ServiceWorkerErrorType, number> {
+    const stats: Record<ServiceWorkerErrorType, number> = {
+      [ServiceWorkerErrorType.NETWORK]: 0,
+      [ServiceWorkerErrorType.CACHE]: 0,
+      [ServiceWorkerErrorType.UPDATE]: 0,
+      [ServiceWorkerErrorType.CONNECTION]: 0,
+      [ServiceWorkerErrorType.TIMEOUT]: 0,
+      [ServiceWorkerErrorType.UNKNOWN]: 0,
+    };
+
+    for (const error of this.errorHistory) {
+      stats[error.type]++;
+    }
+
+    return stats;
+  }
+
+  /**
+   * Logs an error with the appropriate severity
+   */
+  private logError(error: ServiceWorkerError): void {
+    const logMessage = error.toLogMessage();
+
+    switch (error.severity) {
+      case ErrorSeverity.DEBUG:
+        logger.log('note', logMessage);
+        break;
+      case ErrorSeverity.INFO:
+        logger.log('info', logMessage);
+        break;
+      case ErrorSeverity.WARN:
+        logger.log('warn', logMessage);
+        break;
+      case ErrorSeverity.ERROR:
+      case ErrorSeverity.FATAL:
+        logger.log('error', logMessage);
+        break;
+    }
+  }
+
+  /**
+   * Tracks an error in the history
+   */
+  private trackError(error: ServiceWorkerError): void {
+    this.errorHistory.push(error);
+
+    // Trim history if needed
+    if (this.errorHistory.length > this.maxHistorySize) {
+      this.errorHistory = this.errorHistory.slice(-this.maxHistorySize);
+    }
+  }
+}
+
+// Export singleton getter for convenience
+export const getErrorHandler = (): ErrorHandler => ErrorHandler.getInstance();

ts_web_serviceworker/classes.eventbus.ts

@@ -0,0 +1,409 @@
+import { logger } from './logging.js';
+
+/**
+ * Event types for service worker internal communication
+ */
+export enum ServiceWorkerEvent {
+  // Cache events
+  CACHE_HIT = 'cache:hit',
+  CACHE_MISS = 'cache:miss',
+  CACHE_ERROR = 'cache:error',
+  CACHE_INVALIDATE = 'cache:invalidate',
+  CACHE_INVALIDATE_ALL = 'cache:invalidate_all',
+  CACHE_REVALIDATE = 'cache:revalidate',
+
+  // Update events
+  UPDATE_CHECK_START = 'update:check_start',
+  UPDATE_CHECK_COMPLETE = 'update:check_complete',
+  UPDATE_AVAILABLE = 'update:available',
+  UPDATE_APPLIED = 'update:applied',
+  UPDATE_ERROR = 'update:error',
+
+  // Network events
+  NETWORK_REQUEST_START = 'network:request_start',
+  NETWORK_REQUEST_COMPLETE = 'network:request_complete',
+  NETWORK_REQUEST_ERROR = 'network:request_error',
+  NETWORK_ONLINE = 'network:online',
+  NETWORK_OFFLINE = 'network:offline',
+
+  // Connection events
+  CLIENT_CONNECTED = 'connection:client_connected',
+  CLIENT_DISCONNECTED = 'connection:client_disconnected',
+
+  // Lifecycle events
+  INSTALL = 'lifecycle:install',
+  ACTIVATE = 'lifecycle:activate',
+  READY = 'lifecycle:ready',
+}
+
+/**
+ * Event payload interfaces
+ */
+export interface ICacheEventPayload {
+  url: string;
+  method?: string;
+  bytes?: number;
+  error?: string;
+}
+
+export interface IUpdateEventPayload {
+  oldVersion?: string;
+  newVersion?: string;
+  oldHash?: string;
+  newHash?: string;
+  error?: string;
+}
+
+export interface INetworkEventPayload {
+  url: string;
+  method?: string;
+  status?: number;
+  duration?: number;
+  bytes?: number;
+  error?: string;
+}
+
+export interface IConnectionEventPayload {
+  clientId?: string;
+  tabId?: string;
+}
+
+export interface ILifecycleEventPayload {
+  timestamp: number;
+}
+
+/**
+ * Union type for all event payloads
+ */
+export type TEventPayload =
+  | ICacheEventPayload
+  | IUpdateEventPayload
+  | INetworkEventPayload
+  | IConnectionEventPayload
+  | ILifecycleEventPayload
+  | Record<string, unknown>;
+
+/**
+ * Event listener callback type
+ */
+export type TEventListener<T extends TEventPayload = TEventPayload> = (
+  event: ServiceWorkerEvent,
+  payload: T
+) => void | Promise<void>;
+
+/**
+ * Subscription interface
+ */
+export interface ISubscription {
+  unsubscribe: () => void;
+}
+
+/**
+ * Event bus for decoupled communication between service worker components.
+ * Implements a simple pub/sub pattern.
+ */
+export class EventBus {
+  private static instance: EventBus;
+  private listeners: Map<ServiceWorkerEvent, Set<TEventListener>>;
+  private globalListeners: Set<TEventListener>;
+  private eventHistory: Array<{ event: ServiceWorkerEvent; payload: TEventPayload; timestamp: number }>;
+  private readonly maxHistorySize = 100;
+  private debugMode = false;
+
+  private constructor() {
+    this.listeners = new Map();
+    this.globalListeners = new Set();
+    this.eventHistory = [];
+  }
+
+  /**
+   * Gets the singleton instance
+   */
+  public static getInstance(): EventBus {
+    if (!EventBus.instance) {
+      EventBus.instance = new EventBus();
+    }
+    return EventBus.instance;
+  }
+
+  /**
+   * Enables or disables debug mode (logs all events)
+   */
+  public setDebugMode(enabled: boolean): void {
+    this.debugMode = enabled;
+  }
+
+  /**
+   * Emits an event to all subscribed listeners
+   */
+  public emit<T extends TEventPayload>(event: ServiceWorkerEvent, payload: T): void {
+    if (this.debugMode) {
+      logger.log('note', `[EventBus] Emit: ${event} ${JSON.stringify(payload)}`);
+    }
+
+    // Record in history
+    this.recordEvent(event, payload);
+
+    // Notify specific listeners
+    const specificListeners = this.listeners.get(event);
+    if (specificListeners) {
+      for (const listener of specificListeners) {
+        try {
+          const result = listener(event, payload);
+          if (result instanceof Promise) {
+            result.catch((err) => {
+              logger.log('error', `[EventBus] Async listener error for ${event}: ${err}`);
+            });
+          }
+        } catch (err) {
+          logger.log('error', `[EventBus] Listener error for ${event}: ${err}`);
+        }
+      }
+    }
+
+    // Notify global listeners
+    for (const listener of this.globalListeners) {
+      try {
+        const result = listener(event, payload);
+        if (result instanceof Promise) {
+          result.catch((err) => {
+            logger.log('error', `[EventBus] Global async listener error for ${event}: ${err}`);
+          });
+        }
+      } catch (err) {
+        logger.log('error', `[EventBus] Global listener error for ${event}: ${err}`);
+      }
+    }
+  }
+
+  /**
+   * Subscribes to a specific event
+   */
+  public on<T extends TEventPayload>(
+    event: ServiceWorkerEvent,
+    listener: TEventListener<T>
+  ): ISubscription {
+    if (!this.listeners.has(event)) {
+      this.listeners.set(event, new Set());
+    }
+
+    this.listeners.get(event)!.add(listener as TEventListener);
+
+    return {
+      unsubscribe: () => {
+        this.off(event, listener as TEventListener);
+      },
+    };
+  }
+
+  /**
+   * Subscribes to multiple events at once
+   */
+  public onMany<T extends TEventPayload>(
+    events: ServiceWorkerEvent[],
+    listener: TEventListener<T>
+  ): ISubscription {
+    const subscriptions = events.map((event) =>
+      this.on(event, listener as TEventListener)
+    );
+
+    return {
+      unsubscribe: () => {
+        subscriptions.forEach((sub) => sub.unsubscribe());
+      },
+    };
+  }
+
+  /**
+   * Subscribes to all events
+   */
+  public onAll<T extends TEventPayload>(listener: TEventListener<T>): ISubscription {
+    this.globalListeners.add(listener as TEventListener);
+
+    return {
+      unsubscribe: () => {
+        this.globalListeners.delete(listener as TEventListener);
+      },
+    };
+  }
+
+  /**
+   * Subscribes to an event for only one emission
+   */
+  public once<T extends TEventPayload>(
+    event: ServiceWorkerEvent,
+    listener: TEventListener<T>
+  ): ISubscription {
+    const onceListener: TEventListener = (evt, payload) => {
+      this.off(event, onceListener);
+      return listener(evt, payload as T);
+    };
+
+    return this.on(event, onceListener);
+  }
+
+  /**
+   * Unsubscribes a listener from an event
+   */
+  public off(event: ServiceWorkerEvent, listener: TEventListener): void {
+    const listeners = this.listeners.get(event);
+    if (listeners) {
+      listeners.delete(listener);
+      if (listeners.size === 0) {
+        this.listeners.delete(event);
+      }
+    }
+  }
+
+  /**
+   * Removes all listeners for an event
+   */
+  public removeAllListeners(event?: ServiceWorkerEvent): void {
+    if (event) {
+      this.listeners.delete(event);
+    } else {
+      this.listeners.clear();
+      this.globalListeners.clear();
+    }
+  }
+
+  /**
+   * Gets the count of listeners for an event
+   */
+  public listenerCount(event: ServiceWorkerEvent): number {
+    const listeners = this.listeners.get(event);
+    return (listeners?.size ?? 0) + this.globalListeners.size;
+  }
+
+  /**
+   * Gets the event history
+   */
+  public getHistory(): Array<{ event: ServiceWorkerEvent; payload: TEventPayload; timestamp: number }> {
+    return [...this.eventHistory];
+  }
+
+  /**
+   * Gets events of a specific type from history
+   */
+  public getHistoryByType(event: ServiceWorkerEvent): Array<{ payload: TEventPayload; timestamp: number }> {
+    return this.eventHistory
+      .filter((entry) => entry.event === event)
+      .map(({ payload, timestamp }) => ({ payload, timestamp }));
+  }
+
+  /**
+   * Clears the event history
+   */
+  public clearHistory(): void {
+    this.eventHistory = [];
+  }
+
+  /**
+   * Waits for an event to be emitted (returns a promise)
+   */
+  public waitFor<T extends TEventPayload>(
+    event: ServiceWorkerEvent,
+    timeout?: number
+  ): Promise<T> {
+    return new Promise((resolve, reject) => {
+      let timeoutId: ReturnType<typeof setTimeout> | undefined;
+
+      const subscription = this.once<T>(event, (_, payload) => {
+        if (timeoutId) {
+          clearTimeout(timeoutId);
+        }
+        resolve(payload);
+      });
+
+      if (timeout) {
+        timeoutId = setTimeout(() => {
+          subscription.unsubscribe();
+          reject(new Error(`Timeout waiting for event: ${event}`));
+        }, timeout);
+      }
+    });
+  }
+
+  /**
+   * Records an event in history
+   */
+  private recordEvent(event: ServiceWorkerEvent, payload: TEventPayload): void {
+    this.eventHistory.push({
+      event,
+      payload,
+      timestamp: Date.now(),
+    });
+
+    // Trim history if needed
+    if (this.eventHistory.length > this.maxHistorySize) {
+      this.eventHistory = this.eventHistory.slice(-this.maxHistorySize);
+    }
+  }
+
+  // ===================
+  // Convenience Methods
+  // ===================
+
+  /**
+   * Emits a cache hit event
+   */
+  public emitCacheHit(url: string, bytes?: number): void {
+    this.emit(ServiceWorkerEvent.CACHE_HIT, { url, bytes });
+  }
+
+  /**
+   * Emits a cache miss event
+   */
+  public emitCacheMiss(url: string): void {
+    this.emit(ServiceWorkerEvent.CACHE_MISS, { url });
+  }
+
+  /**
+   * Emits a cache error event
+   */
+  public emitCacheError(url: string, error?: string): void {
+    this.emit(ServiceWorkerEvent.CACHE_ERROR, { url, error });
+  }
+
+  /**
+   * Emits a cache invalidation event
+   */
+  public emitCacheInvalidate(url?: string): void {
+    if (url) {
+      this.emit(ServiceWorkerEvent.CACHE_INVALIDATE, { url });
+    } else {
+      this.emit(ServiceWorkerEvent.CACHE_INVALIDATE_ALL, {});
+    }
+  }
+
+  /**
+   * Emits an update available event
+   */
+  public emitUpdateAvailable(oldVersion: string, newVersion: string, oldHash: string, newHash: string): void {
+    this.emit(ServiceWorkerEvent.UPDATE_AVAILABLE, { oldVersion, newVersion, oldHash, newHash });
+  }
+
+  /**
+   * Emits an update applied event
+   */
+  public emitUpdateApplied(newVersion: string, newHash: string): void {
+    this.emit(ServiceWorkerEvent.UPDATE_APPLIED, { newVersion, newHash });
+  }
+
+  /**
+   * Emits a network online event
+   */
+  public emitNetworkOnline(): void {
+    this.emit(ServiceWorkerEvent.NETWORK_ONLINE, {});
+  }
+
+  /**
+   * Emits a network offline event
+   */
+  public emitNetworkOffline(): void {
+    this.emit(ServiceWorkerEvent.NETWORK_OFFLINE, {});
+  }
+}
+
+// Export singleton getter for convenience
+export const getEventBus = (): EventBus => EventBus.getInstance();

ts_web_serviceworker/classes.metrics.ts

@@ -0,0 +1,678 @@
+import { logger } from './logging.js';
+
+/**
+ * Interface for cache metrics
+ */
+export interface ICacheMetrics {
+  hits: number;
+  misses: number;
+  errors: number;
+  bytesServedFromCache: number;
+  bytesFetched: number;
+  averageResponseTime: number;
+}
+
+/**
+ * Interface for per-resource tracking
+ */
+export interface ICachedResource {
+  url: string;
+  domain: string;
+  contentType: string;
+  size: number;
+  hitCount: number;
+  missCount: number;
+  lastAccessed: number;
+  cachedAt: number;
+}
+
+/**
+ * Interface for domain statistics
+ */
+export interface IDomainStats {
+  domain: string;
+  totalResources: number;
+  totalSize: number;
+  totalHits: number;
+  totalMisses: number;
+  hitRate: number;
+}
+
+/**
+ * Interface for content-type statistics
+ */
+export interface IContentTypeStats {
+  contentType: string;
+  totalResources: number;
+  totalSize: number;
+  totalHits: number;
+  totalMisses: number;
+  hitRate: number;
+}
+
+/**
+ * Interface for network metrics
+ */
+export interface INetworkMetrics {
+  totalRequests: number;
+  successfulRequests: number;
+  failedRequests: number;
+  timeouts: number;
+  averageLatency: number;
+  totalBytesTransferred: number;
+}
+
+/**
+ * Interface for update metrics
+ */
+export interface IUpdateMetrics {
+  totalChecks: number;
+  successfulChecks: number;
+  failedChecks: number;
+  updatesFound: number;
+  updatesApplied: number;
+  lastCheckTimestamp: number;
+  lastUpdateTimestamp: number;
+}
+
+/**
+ * Interface for connection metrics
+ */
+export interface IConnectionMetrics {
+  connectedClients: number;
+  totalConnectionAttempts: number;
+  successfulConnections: number;
+  failedConnections: number;
+}
+
+/**
+ * Interface for speedtest metrics
+ */
+export interface ISpeedtestMetrics {
+  lastDownloadSpeedMbps: number;
+  lastUploadSpeedMbps: number;
+  lastLatencyMs: number;
+  lastTestTimestamp: number;
+  testCount: number;
+  isOnline: boolean;
+}
+
+/**
+ * Combined metrics interface
+ */
+export interface IServiceWorkerMetrics {
+  cache: ICacheMetrics;
+  network: INetworkMetrics;
+  update: IUpdateMetrics;
+  connection: IConnectionMetrics;
+  speedtest: ISpeedtestMetrics;
+  startTime: number;
+  uptime: number;
+}
+
+/**
+ * Response time entry for calculating averages
+ */
+interface IResponseTimeEntry {
+  url: string;
+  duration: number;
+  timestamp: number;
+}
+
+/**
+ * Metrics collector for service worker observability
+ */
+export class MetricsCollector {
+  private static instance: MetricsCollector;
+
+  // Cache metrics
+  private cacheHits = 0;
+  private cacheMisses = 0;
+  private cacheErrors = 0;
+  private bytesServedFromCache = 0;
+  private bytesFetched = 0;
+
+  // Network metrics
+  private totalRequests = 0;
+  private successfulRequests = 0;
+  private failedRequests = 0;
+  private timeouts = 0;
+  private totalBytesTransferred = 0;
+
+  // Update metrics
+  private totalUpdateChecks = 0;
+  private successfulUpdateChecks = 0;
+  private failedUpdateChecks = 0;
+  private updatesFound = 0;
+  private updatesApplied = 0;
+  private lastCheckTimestamp = 0;
+  private lastUpdateTimestamp = 0;
+
+  // Connection metrics
+  private connectedClients = 0;
+  private totalConnectionAttempts = 0;
+  private successfulConnections = 0;
+  private failedConnections = 0;
+
+  // Speedtest metrics
+  private lastDownloadSpeedMbps = 0;
+  private lastUploadSpeedMbps = 0;
+  private lastLatencyMs = 0;
+  private lastSpeedtestTimestamp = 0;
+  private speedtestCount = 0;
+  private isOnline = true;
+
+  // Response time tracking
+  private responseTimes: IResponseTimeEntry[] = [];
+  private readonly maxResponseTimeEntries = 1000;
+  private readonly responseTimeWindow = 5 * 60 * 1000; // 5 minutes
+
+  // Per-resource tracking
+  private resourceStats: Map<string, ICachedResource> = new Map();
+  private readonly maxResourceEntries = 500;
+
+  // Start time
+  private readonly startTime: number;
+
+  private constructor() {
+    this.startTime = Date.now();
+  }
+
+  /**
+   * Gets the singleton instance
+   */
+  public static getInstance(): MetricsCollector {
+    if (!MetricsCollector.instance) {
+      MetricsCollector.instance = new MetricsCollector();
+    }
+    return MetricsCollector.instance;
+  }
+
+  // ===================
+  // Cache Metrics
+  // ===================
+
+  public recordCacheHit(url: string, bytes: number = 0): void {
+    this.cacheHits++;
+    this.bytesServedFromCache += bytes;
+    logger.log('note', `[Metrics] Cache hit: ${url} (${bytes} bytes)`);
+  }
+
+  public recordCacheMiss(url: string): void {
+    this.cacheMisses++;
+    logger.log('note', `[Metrics] Cache miss: ${url}`);
+  }
+
+  public recordCacheError(url: string, error?: string): void {
+    this.cacheErrors++;
+    logger.log('warn', `[Metrics] Cache error: ${url} - ${error || 'unknown'}`);
+  }
+
+  public recordBytesFetched(bytes: number): void {
+    this.bytesFetched += bytes;
+  }
+
+  // ===================
+  // Network Metrics
+  // ===================
+
+  public recordRequest(_url: string): void {
+    this.totalRequests++;
+  }
+
+  public recordRequestSuccess(url: string, duration: number, bytes: number = 0): void {
+    this.successfulRequests++;
+    this.totalBytesTransferred += bytes;
+    this.recordResponseTime(url, duration);
+  }
+
+  public recordRequestFailure(url: string, error?: string): void {
+    this.failedRequests++;
+    logger.log('warn', `[Metrics] Request failed: ${url} - ${error || 'unknown'}`);
+  }
+
+  public recordTimeout(url: string, duration: number): void {
+    this.timeouts++;
+    logger.log('warn', `[Metrics] Request timeout: ${url} after ${duration}ms`);
+  }
+
+  // ===================
+  // Update Metrics
+  // ===================
+
+  public recordUpdateCheck(success: boolean): void {
+    this.totalUpdateChecks++;
+    this.lastCheckTimestamp = Date.now();
+    if (success) {
+      this.successfulUpdateChecks++;
+    } else {
+      this.failedUpdateChecks++;
+    }
+  }
+
+  public recordUpdateFound(): void {
+    this.updatesFound++;
+  }
+
+  public recordUpdateApplied(): void {
+    this.updatesApplied++;
+    this.lastUpdateTimestamp = Date.now();
+  }
+
+  // ===================
+  // Connection Metrics
+  // ===================
+
+  public recordConnectionAttempt(): void {
+    this.totalConnectionAttempts++;
+  }
+
+  public recordConnectionSuccess(): void {
+    this.successfulConnections++;
+    this.connectedClients++;
+  }
+
+  public recordConnectionFailure(): void {
+    this.failedConnections++;
+  }
+
+  public recordClientDisconnect(): void {
+    this.connectedClients = Math.max(0, this.connectedClients - 1);
+  }
+
+  public setConnectedClients(count: number): void {
+    this.connectedClients = count;
+  }
+
+  // ===================
+  // Speedtest Metrics
+  // ===================
+
+  public recordSpeedtest(type: 'download' | 'upload' | 'latency', value: number): void {
+    this.speedtestCount++;
+    this.lastSpeedtestTimestamp = Date.now();
+    this.isOnline = true;
+
+    switch (type) {
+      case 'download':
+        this.lastDownloadSpeedMbps = value;
+        logger.log('info', `[Metrics] Speedtest download: ${value.toFixed(2)} Mbps`);
+        break;
+      case 'upload':
+        this.lastUploadSpeedMbps = value;
+        logger.log('info', `[Metrics] Speedtest upload: ${value.toFixed(2)} Mbps`);
+        break;
+      case 'latency':
+        this.lastLatencyMs = value;
+        logger.log('info', `[Metrics] Speedtest latency: ${value.toFixed(0)} ms`);
+        break;
+    }
+  }
+
+  public setOnlineStatus(online: boolean): void {
+    this.isOnline = online;
+    logger.log('info', `[Metrics] Online status: ${online ? 'online' : 'offline'}`);
+  }
+
+  public getSpeedtestMetrics(): ISpeedtestMetrics {
+    return {
+      lastDownloadSpeedMbps: this.lastDownloadSpeedMbps,
+      lastUploadSpeedMbps: this.lastUploadSpeedMbps,
+      lastLatencyMs: this.lastLatencyMs,
+      lastTestTimestamp: this.lastSpeedtestTimestamp,
+      testCount: this.speedtestCount,
+      isOnline: this.isOnline,
+    };
+  }
+
+  // ===================
+  // Response Time Tracking
+  // ===================
+
+  private recordResponseTime(url: string, duration: number): void {
+    const entry: IResponseTimeEntry = {
+      url,
+      duration,
+      timestamp: Date.now(),
+    };
+
+    this.responseTimes.push(entry);
+
+    // Trim old entries
+    this.cleanupResponseTimes();
+  }
+
+  private cleanupResponseTimes(): void {
+    const cutoff = Date.now() - this.responseTimeWindow;
+
+    // Remove old entries
+    this.responseTimes = this.responseTimes.filter(
+      (entry) => entry.timestamp >= cutoff
+    );
+
+    // Keep within max size
+    if (this.responseTimes.length > this.maxResponseTimeEntries) {
+      this.responseTimes = this.responseTimes.slice(-this.maxResponseTimeEntries);
+    }
+  }
+
+  private calculateAverageResponseTime(): number {
+    if (this.responseTimes.length === 0) {
+      return 0;
+    }
+
+    const sum = this.responseTimes.reduce((acc, entry) => acc + entry.duration, 0);
+    return Math.round(sum / this.responseTimes.length);
+  }
+
+  private calculateAverageLatency(): number {
+    // Same as response time for now
+    return this.calculateAverageResponseTime();
+  }
+
+  // ===================
+  // Metrics Retrieval
+  // ===================
+
+  /**
+   * Gets all metrics
+   */
+  public getMetrics(): IServiceWorkerMetrics {
+    const now = Date.now();
+    this.cleanupResponseTimes();
+
+    return {
+      cache: {
+        hits: this.cacheHits,
+        misses: this.cacheMisses,
+        errors: this.cacheErrors,
+        bytesServedFromCache: this.bytesServedFromCache,
+        bytesFetched: this.bytesFetched,
+        averageResponseTime: this.calculateAverageResponseTime(),
+      },
+      network: {
+        totalRequests: this.totalRequests,
+        successfulRequests: this.successfulRequests,
+        failedRequests: this.failedRequests,
+        timeouts: this.timeouts,
+        averageLatency: this.calculateAverageLatency(),
+        totalBytesTransferred: this.totalBytesTransferred,
+      },
+      update: {
+        totalChecks: this.totalUpdateChecks,
+        successfulChecks: this.successfulUpdateChecks,
+        failedChecks: this.failedUpdateChecks,
+        updatesFound: this.updatesFound,
+        updatesApplied: this.updatesApplied,
+        lastCheckTimestamp: this.lastCheckTimestamp,
+        lastUpdateTimestamp: this.lastUpdateTimestamp,
+      },
+      connection: {
+        connectedClients: this.connectedClients,
+        totalConnectionAttempts: this.totalConnectionAttempts,
+        successfulConnections: this.successfulConnections,
+        failedConnections: this.failedConnections,
+      },
+      speedtest: {
+        lastDownloadSpeedMbps: this.lastDownloadSpeedMbps,
+        lastUploadSpeedMbps: this.lastUploadSpeedMbps,
+        lastLatencyMs: this.lastLatencyMs,
+        lastTestTimestamp: this.lastSpeedtestTimestamp,
+        testCount: this.speedtestCount,
+        isOnline: this.isOnline,
+      },
+      startTime: this.startTime,
+      uptime: now - this.startTime,
+    };
+  }
+
+  /**
+   * Gets cache hit rate as a percentage
+   */
+  public getCacheHitRate(): number {
+    const total = this.cacheHits + this.cacheMisses;
+    if (total === 0) {
+      return 0;
+    }
+    return Math.round((this.cacheHits / total) * 100);
+  }
+
+  /**
+   * Gets network success rate as a percentage
+   */
+  public getNetworkSuccessRate(): number {
+    if (this.totalRequests === 0) {
+      return 100;
+    }
+    return Math.round((this.successfulRequests / this.totalRequests) * 100);
+  }
+
+  /**
+   * Resets all metrics
+   */
+  public reset(): void {
+    this.cacheHits = 0;
+    this.cacheMisses = 0;
+    this.cacheErrors = 0;
+    this.bytesServedFromCache = 0;
+    this.bytesFetched = 0;
+
+    this.totalRequests = 0;
+    this.successfulRequests = 0;
+    this.failedRequests = 0;
+    this.timeouts = 0;
+    this.totalBytesTransferred = 0;
+
+    this.totalUpdateChecks = 0;
+    this.successfulUpdateChecks = 0;
+    this.failedUpdateChecks = 0;
+    this.updatesFound = 0;
+    this.updatesApplied = 0;
+    this.lastCheckTimestamp = 0;
+    this.lastUpdateTimestamp = 0;
+
+    this.totalConnectionAttempts = 0;
+    this.successfulConnections = 0;
+    this.failedConnections = 0;
+
+    this.lastDownloadSpeedMbps = 0;
+    this.lastUploadSpeedMbps = 0;
+    this.lastLatencyMs = 0;
+    this.lastSpeedtestTimestamp = 0;
+    this.speedtestCount = 0;
+    // Note: isOnline is not reset as it reflects current state
+
+    this.responseTimes = [];
+    this.resourceStats.clear();
+
+    logger.log('info', '[Metrics] All metrics reset');
+  }
+
+  /**
+   * Gets a summary string for logging
+   */
+  public getSummary(): string {
+    const metrics = this.getMetrics();
+    return [
+      `Cache: ${this.getCacheHitRate()}% hit rate (${metrics.cache.hits}/${metrics.cache.hits + metrics.cache.misses})`,
+      `Network: ${this.getNetworkSuccessRate()}% success (${metrics.network.successfulRequests}/${metrics.network.totalRequests})`,
+      `Updates: ${metrics.update.updatesFound} found, ${metrics.update.updatesApplied} applied`,
+      `Uptime: ${Math.round(metrics.uptime / 1000)}s`,
+    ].join(' | ');
+  }
+
+  // ===================
+  // Per-Resource Tracking
+  // ===================
+
+  /**
+   * Extracts domain from URL
+   */
+  private extractDomain(url: string): string {
+    try {
+      const parsedUrl = new URL(url);
+      return parsedUrl.hostname;
+    } catch {
+      return 'unknown';
+    }
+  }
+
+  /**
+   * Records a resource access (cache hit or miss) with details
+   */
+  public recordResourceAccess(
+    url: string,
+    isHit: boolean,
+    contentType: string = 'unknown',
+    size: number = 0
+  ): void {
+    const now = Date.now();
+    const domain = this.extractDomain(url);
+
+    let resource = this.resourceStats.get(url);
+
+    if (!resource) {
+      resource = {
+        url,
+        domain,
+        contentType,
+        size,
+        hitCount: 0,
+        missCount: 0,
+        lastAccessed: now,
+        cachedAt: now,
+      };
+      this.resourceStats.set(url, resource);
+    }
+
+    // Update resource stats
+    if (isHit) {
+      resource.hitCount++;
+    } else {
+      resource.missCount++;
+    }
+    resource.lastAccessed = now;
+
+    // Update content-type and size if provided (may come from response headers)
+    if (contentType !== 'unknown') {
+      resource.contentType = contentType;
+    }
+    if (size > 0) {
+      resource.size = size;
+    }
+
+    // Trim old entries if needed
+    this.cleanupResourceStats();
+  }
+
+  /**
+   * Cleans up old resource entries to prevent memory bloat
+   */
+  private cleanupResourceStats(): void {
+    if (this.resourceStats.size <= this.maxResourceEntries) {
+      return;
+    }
+
+    // Convert to array and sort by lastAccessed (oldest first)
+    const entries = Array.from(this.resourceStats.entries())
+      .sort((a, b) => a[1].lastAccessed - b[1].lastAccessed);
+
+    // Remove oldest entries until we're under the limit
+    const toRemove = entries.slice(0, entries.length - this.maxResourceEntries);
+    for (const [url] of toRemove) {
+      this.resourceStats.delete(url);
+    }
+  }
+
+  /**
+   * Gets all cached resources
+   */
+  public getCachedResources(): ICachedResource[] {
+    return Array.from(this.resourceStats.values());
+  }
+
+  /**
+   * Gets domain statistics
+   */
+  public getDomainStats(): IDomainStats[] {
+    const domainMap = new Map<string, IDomainStats>();
+
+    for (const resource of this.resourceStats.values()) {
+      let stats = domainMap.get(resource.domain);
+
+      if (!stats) {
+        stats = {
+          domain: resource.domain,
+          totalResources: 0,
+          totalSize: 0,
+          totalHits: 0,
+          totalMisses: 0,
+          hitRate: 0,
+        };
+        domainMap.set(resource.domain, stats);
+      }
+
+      stats.totalResources++;
+      stats.totalSize += resource.size;
+      stats.totalHits += resource.hitCount;
+      stats.totalMisses += resource.missCount;
+    }
+
+    // Calculate hit rates
+    for (const stats of domainMap.values()) {
+      const total = stats.totalHits + stats.totalMisses;
+      stats.hitRate = total > 0 ? Math.round((stats.totalHits / total) * 100) : 0;
+    }
+
+    return Array.from(domainMap.values());
+  }
+
+  /**
+   * Gets content-type statistics
+   */
+  public getContentTypeStats(): IContentTypeStats[] {
+    const typeMap = new Map<string, IContentTypeStats>();
+
+    for (const resource of this.resourceStats.values()) {
+      // Normalize content-type (extract base type)
+      const baseType = resource.contentType.split(';')[0].trim() || 'unknown';
+
+      let stats = typeMap.get(baseType);
+
+      if (!stats) {
+        stats = {
+          contentType: baseType,
+          totalResources: 0,
+          totalSize: 0,
+          totalHits: 0,
+          totalMisses: 0,
+          hitRate: 0,
+        };
+        typeMap.set(baseType, stats);
+      }
+
+      stats.totalResources++;
+      stats.totalSize += resource.size;
+      stats.totalHits += resource.hitCount;
+      stats.totalMisses += resource.missCount;
+    }
+
+    // Calculate hit rates
+    for (const stats of typeMap.values()) {
+      const total = stats.totalHits + stats.totalMisses;
+      stats.hitRate = total > 0 ? Math.round((stats.totalHits / total) * 100) : 0;
+    }
+
+    return Array.from(typeMap.values());
+  }
+
+  /**
+   * Gets resource count
+   */
+  public getResourceCount(): number {
+    return this.resourceStats.size;
+  }
+}
+
+// Export singleton getter for convenience
+export const getMetricsCollector = (): MetricsCollector => MetricsCollector.getInstance();

ts_web_serviceworker/classes.serviceworker.ts

@@ -27,6 +27,10 @@ export class ServiceWorker {
   public taskManager: TaskManager;
   public store: plugins.webstore.WebStore;
 
+  // TypedSocket connection for server communication
+  public typedsocket: plugins.typedsocket.TypedSocket;
+  public typedrouter = new plugins.typedrequest.TypedRouter();
+
   constructor(selfArg: interfaces.ServiceWindow) {
     logger.log('info', `Service worker instantiating at ${Date.now()}`);
     this.serviceWindowRef = selfArg;
@@ -76,16 +80,52 @@ export class ServiceWorker {
       try {
         await selfArg.clients.claim();
         logger.log('ok', 'Clients claimed successfully');
-        
+
         await this.cacheManager.cleanCaches('new service worker loaded! :)');
         logger.log('ok', 'Caches cleaned successfully');
-        
+
         done.resolve();
         logger.log('success', `Service worker activated at ${new Date().toISOString()}`);
+
+        // Connect to TypedServer for cache invalidation after activation
+        this.connectToServer();
       } catch (error) {
         logger.log('error', `Service worker activation error: ${error}`);
         done.reject(error);
       }
     });
   }
+
+  /**
+   * Connect to TypedServer via TypedSocket for cache invalidation
+   */
+  private async connectToServer(): Promise<void> {
+    try {
+      // Register handler for cache invalidation from server
+      this.typedrouter.addTypedHandler<interfaces.serviceworker.IRequest_Serviceworker_CacheInvalidate>(
+        new plugins.typedrequest.TypedHandler('serviceworker_cacheInvalidate', async (reqArg) => {
+          logger.log('info', `Cache invalidation requested from server: ${reqArg.reason}`);
+          await this.cacheManager.cleanCaches(reqArg.reason);
+          // Notify all clients to reload
+          await this.leleServiceWorkerBackend.triggerReloadAll();
+          return { success: true };
+        })
+      );
+
+      // Connect to server via TypedSocket
+      this.typedsocket = await plugins.typedsocket.TypedSocket.createClient(
+        this.typedrouter,
+        this.serviceWindowRef.location.origin
+      );
+
+      // Tag this connection as a service worker for server-side filtering
+      await this.typedsocket.setTag('serviceworker', {});
+
+      logger.log('ok', 'Service worker connected to TypedServer via TypedSocket');
+    } catch (error: any) {
+      logger.log('warn', `Service worker TypedSocket connection failed: ${error?.message || error}`);
+      // Retry connection after a delay
+      setTimeout(() => this.connectToServer(), 10000);
+    }
+  }
 }

ts_web_serviceworker/classes.updatemanager.ts

@@ -3,6 +3,9 @@ import * as interfaces from '../dist_ts_interfaces/index.js';
 import { ServiceWorker } from './classes.serviceworker.js';
 import { logger } from './logging.js';
 import { CacheManager } from './classes.cachemanager.js';
+import { getMetricsCollector } from './classes.metrics.js';
+import { getEventBus, ServiceWorkerEvent } from './classes.eventbus.js';
+import { getErrorHandler, ServiceWorkerErrorType } from './classes.errorhandler.js';
 
 export class UpdateManager {
   public lastUpdateCheck: number = 0;
@@ -10,6 +13,10 @@ export class UpdateManager {
 
   public serviceworkerRef: ServiceWorker;
 
+  // Rate limiting for update checks
+  private isCheckInProgress = false;
+  private pendingCheckPromise: Promise<boolean> | null = null;
+
   constructor(serviceWorkerRefArg: ServiceWorker) {
     this.serviceworkerRef = serviceWorkerRefArg;
   }
@@ -22,75 +29,144 @@ export class UpdateManager {
   private readonly OFFLINE_GRACE_PERIOD = 7 * 24 * 60 * 60 * 1000; // 7 days grace period when offline
   private lastCacheTimestamp: number = 0;
 
-  public async checkUpdate(cacheManager: CacheManager): Promise<boolean> {
-    const lswVersionInfoKey = 'versionInfo';
-    const cacheTimestampKey = 'cacheTimestamp';
-
-    // Initialize or load version info
-    if (!this.lastVersionInfo && !(await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
-      this.lastVersionInfo = {
-        appHash: '',
-        appSemVer: 'v0.0.0',
-      };
-    } else if (!this.lastVersionInfo && (await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
-      this.lastVersionInfo = await this.serviceworkerRef.store.get(lswVersionInfoKey);
-    }
-
-    // Load or initialize cache timestamp
-    if (await this.serviceworkerRef.store.check(cacheTimestampKey)) {
-      this.lastCacheTimestamp = await this.serviceworkerRef.store.get(cacheTimestampKey);
-    }
-
+  /**
+   * Public method to trigger an update check (rate-limited)
+   */
+  public async checkUpdate(_cacheManager: CacheManager): Promise<boolean> {
     const now = Date.now();
     const millisSinceLastCheck = now - this.lastUpdateCheck;
-    const cacheAge = now - this.lastCacheTimestamp;
 
-    // Check if we need to handle stale cache
-    if (cacheAge > this.MAX_CACHE_AGE) {
-      const isOnline = await this.serviceworkerRef.networkManager.checkOnlineStatus();
-      
-      if (isOnline) {
-        logger.log('info', `Cache is older than ${this.MAX_CACHE_AGE}ms, forcing update...`);
-        await this.forceUpdate(cacheManager);
-        return true;
-      } else if (cacheAge > this.OFFLINE_GRACE_PERIOD) {
-        // If we're offline and beyond grace period, warn but continue serving cached content
-        logger.log('warn', `Cache is stale and device is offline. Cache age: ${cacheAge}ms. Using cached content with warning.`);
-        // We could potentially show a warning to the user here
-        return false;
-      } else {
-        logger.log('info', `Cache is stale but device is offline. Within grace period. Using cached content.`);
-        return false;
-      }
-    }
-
-    // Regular update check interval
-    if (millisSinceLastCheck < this.MIN_CHECK_INTERVAL && cacheAge < this.MAX_CACHE_AGE) {
+    // Rate limit: skip if we checked recently
+    if (millisSinceLastCheck < this.MIN_CHECK_INTERVAL) {
       return false;
     }
-    logger.log('info', 'checking for update of the app by comparing app hashes...');
-    this.lastUpdateCheck = now;
-    const currentVersionInfo = await this.getVersionInfoFromServer();
-    logger.log('info', `old versionInfo: ${JSON.stringify(this.lastVersionInfo)}`);
-    logger.log('info', `current versionInfo: ${JSON.stringify(currentVersionInfo)}`);
-    const needsUpdate = this.lastVersionInfo.appHash !== currentVersionInfo.appHash ? true : false;
-    if (needsUpdate) {
-      logger.log('info', 'Caches need to be updated');
-      logger.log('info', 'starting a debounced update task');
-      this.performAsyncUpdateDebouncedTask.trigger();
-      this.lastVersionInfo = currentVersionInfo;
-      await this.serviceworkerRef.store.set(lswVersionInfoKey, this.lastVersionInfo);
-      
-      // Update cache timestamp
-      this.lastCacheTimestamp = now;
-      await this.serviceworkerRef.store.set('cacheTimestamp', now);
-    } else {
-      logger.log('ok', 'caches are still valid, performing revalidation in a bit...');
-      this.performAsyncCacheRevalidationDebouncedTask.trigger();
-      
-      // Update cache timestamp after successful revalidation
-      this.lastCacheTimestamp = now;
-      await this.serviceworkerRef.store.set('cacheTimestamp', now);
+
+    // If a check is in progress, return the existing promise
+    if (this.pendingCheckPromise) {
+      return this.pendingCheckPromise;
+    }
+
+    // Perform the check
+    this.pendingCheckPromise = this.performUpdateCheck().finally(() => {
+      this.pendingCheckPromise = null;
+    });
+
+    return this.pendingCheckPromise;
+  }
+
+  /**
+   * Internal method that performs the actual update check
+   */
+  private async performUpdateCheck(): Promise<boolean> {
+    // Prevent concurrent checks
+    if (this.isCheckInProgress) {
+      logger.log('note', 'Update check already in progress, skipping...');
+      return false;
+    }
+
+    this.isCheckInProgress = true;
+    const metrics = getMetricsCollector();
+    const eventBus = getEventBus();
+    const errorHandler = getErrorHandler();
+
+    try {
+      eventBus.emit(ServiceWorkerEvent.UPDATE_CHECK_START, { timestamp: Date.now() });
+
+      const lswVersionInfoKey = 'versionInfo';
+      const cacheTimestampKey = 'cacheTimestamp';
+
+      // Initialize or load version info
+      if (!this.lastVersionInfo && !(await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
+        this.lastVersionInfo = {
+          appHash: '',
+          appSemVer: 'v0.0.0',
+        };
+      } else if (!this.lastVersionInfo && (await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
+        this.lastVersionInfo = await this.serviceworkerRef.store.get(lswVersionInfoKey);
+      }
+
+      // Load or initialize cache timestamp
+      if (await this.serviceworkerRef.store.check(cacheTimestampKey)) {
+        this.lastCacheTimestamp = await this.serviceworkerRef.store.get(cacheTimestampKey);
+      }
+
+      const now = Date.now();
+      const cacheAge = now - this.lastCacheTimestamp;
+
+      // Check if we need to handle stale cache
+      if (cacheAge > this.MAX_CACHE_AGE) {
+        const isOnline = await this.serviceworkerRef.networkManager.checkOnlineStatus();
+
+        if (isOnline) {
+          logger.log('info', `Cache is older than ${this.MAX_CACHE_AGE}ms, forcing update...`);
+          await this.forceUpdate(this.serviceworkerRef.cacheManager);
+          metrics.recordUpdateCheck(true);
+          return true;
+        } else if (cacheAge > this.OFFLINE_GRACE_PERIOD) {
+          logger.log('warn', `Cache is stale and device is offline. Cache age: ${cacheAge}ms. Using cached content with warning.`);
+          metrics.recordUpdateCheck(false);
+          return false;
+        } else {
+          logger.log('info', `Cache is stale but device is offline. Within grace period. Using cached content.`);
+          metrics.recordUpdateCheck(false);
+          return false;
+        }
+      }
+
+      logger.log('info', 'checking for update of the app by comparing app hashes...');
+      this.lastUpdateCheck = Date.now();
+
+      const currentVersionInfo = await this.getVersionInfoFromServer();
+      logger.log('info', `old versionInfo: ${JSON.stringify(this.lastVersionInfo)}`);
+      logger.log('info', `current versionInfo: ${JSON.stringify(currentVersionInfo)}`);
+
+      const needsUpdate = this.lastVersionInfo.appHash !== currentVersionInfo.appHash;
+
+      if (needsUpdate) {
+        logger.log('info', 'Caches need to be updated');
+        logger.log('info', 'starting a debounced update task');
+
+        metrics.recordUpdateFound();
+        eventBus.emitUpdateAvailable(
+          this.lastVersionInfo.appSemVer,
+          currentVersionInfo.appSemVer,
+          this.lastVersionInfo.appHash,
+          currentVersionInfo.appHash
+        );
+
+        this.performAsyncUpdateDebouncedTask.trigger();
+        this.lastVersionInfo = currentVersionInfo;
+        await this.serviceworkerRef.store.set(lswVersionInfoKey, this.lastVersionInfo);
+
+        // Update cache timestamp
+        this.lastCacheTimestamp = now;
+        await this.serviceworkerRef.store.set('cacheTimestamp', now);
+      } else {
+        logger.log('ok', 'caches are still valid, performing revalidation in a bit...');
+        this.performAsyncCacheRevalidationDebouncedTask.trigger();
+
+        // Update cache timestamp after successful revalidation
+        this.lastCacheTimestamp = now;
+        await this.serviceworkerRef.store.set('cacheTimestamp', now);
+      }
+
+      metrics.recordUpdateCheck(true);
+      eventBus.emit(ServiceWorkerEvent.UPDATE_CHECK_COMPLETE, {
+        needsUpdate,
+        timestamp: Date.now()
+      });
+
+      return needsUpdate;
+    } catch (error) {
+      const err = errorHandler.handleUpdateError(
+        `Update check failed: ${error?.message || error}`,
+        error instanceof Error ? error : undefined
+      );
+      metrics.recordUpdateCheck(false);
+      eventBus.emit(ServiceWorkerEvent.UPDATE_ERROR, { error: err.message });
+      return false;
+    } finally {
+      this.isCheckInProgress = false;
     }
   }
 
@@ -140,9 +216,18 @@ export class UpdateManager {
     name: 'performAsyncUpdate',
     taskFunction: async () => {
       logger.log('info', 'trying to update PWA with serviceworker');
+      const metrics = getMetricsCollector();
+      const eventBus = getEventBus();
+
       await this.serviceworkerRef.cacheManager.cleanCaches('a new app version has been communicated by the server.');
       // lets notify all current clients about the update
       await this.serviceworkerRef.leleServiceWorkerBackend.triggerReloadAll();
+
+      metrics.recordUpdateApplied();
+      eventBus.emitUpdateApplied(
+        this.lastVersionInfo?.appSemVer || 'unknown',
+        this.lastVersionInfo?.appHash || 'unknown'
+      );
     },
     debounceTimeInMillis: 2000,
   });

ts_web_serviceworker/index.ts

@@ -1,7 +1,4 @@
-// TypeScript declatations
-import * as env from './env.js';
-declare var self: env.ServiceWindow;
-
-import { ServiceWorker } from './classes.serviceworker.js';
-
-const sw = new ServiceWorker(self);
+// Service worker entry point - NO EXPORTS here!
+// Exports at entry point cause tsbundle to output ESM format which service workers can't use.
+// The actual initialization happens in init.ts which other modules can import from.
+import './init.js';

ts_web_serviceworker/init.ts

@@ -0,0 +1,10 @@
+// Service worker initialization - creates and exports the SW instance
+// Other modules in the bundle can import from here
+import * as env from './env.js';
+declare var self: env.ServiceWindow;
+
+import { ServiceWorker } from './classes.serviceworker.js';
+
+const sw = new ServiceWorker(self);
+
+export const getServiceWorkerInstance = (): ServiceWorker => sw;

ts_web_serviceworker/plugins.ts

@@ -5,8 +5,9 @@ export { interfaces };
 
 // @apiglobal scope
 import * as typedrequest from '@api.global/typedrequest';
+import * as typedsocket from '@api.global/typedsocket';
 
-export { typedrequest };
+export { typedrequest, typedsocket };
 
 // @pushrocks scope
 import * as smartdelay from '@push.rocks/smartdelay';

ts_web_serviceworker_client/classes.actionmanager.ts

@@ -2,13 +2,38 @@ import * as plugins from './plugins.js';
 import * as interfaces from '../dist_ts_interfaces/index.js';
 import { logger } from './logging.js';
 
+/**
+ * Connection options for service worker connection attempts
+ */
+export interface IConnectionOptions {
+  timeoutMs: number;      // Total timeout for all attempts (default: 30000)
+  maxRetries: number;     // Maximum number of retry attempts (default: 10)
+  initialDelayMs: number; // Initial delay between retries (default: 500)
+  maxDelayMs: number;     // Maximum delay between retries (default: 5000)
+  backoffMultiplier: number; // Multiplier for exponential backoff (default: 1.5)
+}
+
+const DEFAULT_CONNECTION_OPTIONS: IConnectionOptions = {
+  timeoutMs: 30000,
+  maxRetries: 10,
+  initialDelayMs: 500,
+  maxDelayMs: 5000,
+  backoffMultiplier: 1.5,
+};
+
 /**
  * MessageManager implements two ways of serviceworker communication
  * * the serviceWorker method
  * * the deesComms method using BroadcastChannel
  */
+/**
+ * Callback type for status update subscriptions
+ */
+export type TStatusUpdateCallback = (status: interfaces.serviceworker.IStatusUpdate) => void;
+
 export class ActionManager {
   public deesComms = new plugins.deesComms.DeesComms();
+  private statusCallbacks: Set<TStatusUpdateCallback> = new Set();
 
   constructor() {
     // lets define handlers on the client/tab side
@@ -18,30 +43,141 @@ export class ActionManager {
       }, 200);
       return {};
     });
+
+    // Handler for status updates from service worker
+    this.deesComms.createTypedHandler<interfaces.serviceworker.IMessage_Serviceworker_StatusUpdate>('serviceworker_statusUpdate', async (status) => {
+      // Forward to all registered callbacks
+      for (const callback of this.statusCallbacks) {
+        try {
+          callback(status);
+        } catch (error) {
+          logger.log('warn', `Status callback error: ${error}`);
+        }
+      }
+      return {};
+    });
   }
 
-  public async waitForServiceWorkerConnection () {
-    console.log('waiting for service worker connection...')
-    const tr = this.deesComms.createTypedRequest<interfaces.serviceworker.IRequest_Client_Serviceworker_ConnectionPolling>('broadcastConnectionPolling');
-    let connected = false;
-    while (!connected) {
-      tr.fire({
-        tabId: '123'
-      }).then(response => {
-        if (response.serviceworkerId) {
-          console.log('connected to serviceworker!');
-          connected = true;
-        }
-      }).catch();
-      await plugins.smartdelay.delayFor(777);
-      if (!connected) {
-        // lets wake it up.
-        navigator.serviceWorker.controller.postMessage({
-          type: 'wakeUpCall',
-        });
-      }
+  /**
+   * Subscribe to status updates from the service worker
+   * @returns Unsubscribe function
+   */
+  public subscribeToStatusUpdates(callback: TStatusUpdateCallback): () => void {
+    this.statusCallbacks.add(callback);
+    logger.log('info', 'Subscribed to service worker status updates');
+    return () => {
+      this.statusCallbacks.delete(callback);
+      logger.log('info', 'Unsubscribed from service worker status updates');
+    };
+  }
+
+  /**
+   * Get current service worker status
+   */
+  public async getServiceWorkerStatus(): Promise<interfaces.serviceworker.IRequest_Serviceworker_GetStatus['response'] | null> {
+    try {
+      const tr = this.deesComms.createTypedRequest<interfaces.serviceworker.IRequest_Serviceworker_GetStatus>('serviceworker_getStatus');
+      const response = await Promise.race([
+        tr.fire({}),
+        new Promise<null>((resolve) => setTimeout(() => resolve(null), 5000)),
+      ]);
+      return response;
+    } catch (error) {
+      logger.log('warn', `Failed to get service worker status: ${error}`);
+      return null;
+    }
+  }
+
+  /**
+   * Waits for service worker connection with timeout and retry logic.
+   * Returns a result object instead of blocking forever.
+   */
+  public async waitForServiceWorkerConnection(
+    options: Partial<IConnectionOptions> = {}
+  ): Promise<interfaces.serviceworker.IConnectionResult> {
+    const opts = { ...DEFAULT_CONNECTION_OPTIONS, ...options };
+    const startTime = Date.now();
+    let attempt = 0;
+    let currentDelay = opts.initialDelayMs;
+
+    logger.log('info', 'Waiting for service worker connection...');
+
+    const tr = this.deesComms.createTypedRequest<interfaces.serviceworker.IRequest_Client_Serviceworker_ConnectionPolling>('broadcastConnectionPolling');
+
+    while (attempt < opts.maxRetries) {
+      // Check total timeout
+      const elapsed = Date.now() - startTime;
+      if (elapsed >= opts.timeoutMs) {
+        logger.log('warn', `Service worker connection timeout after ${elapsed}ms (${attempt} attempts)`);
+        return {
+          connected: false,
+          error: 'timeout',
+          attempts: attempt,
+          duration: elapsed,
+        };
+      }
+
+      attempt++;
+
+      try {
+        // Create a per-request timeout
+        const requestTimeout = Math.min(currentDelay * 2, opts.maxDelayMs);
+        const response = await Promise.race([
+          tr.fire({ tabId: crypto.randomUUID?.() || String(Date.now()) }),
+          new Promise<null>((_, reject) =>
+            setTimeout(() => reject(new Error('Request timeout')), requestTimeout)
+          ),
+        ]);
+
+        if (response && response.serviceworkerId) {
+          const duration = Date.now() - startTime;
+          logger.log('ok', `Connected to service worker after ${attempt} attempt(s) (${duration}ms)`);
+          return {
+            connected: true,
+            attempts: attempt,
+            duration,
+          };
+        }
+      } catch (error) {
+        // Request failed or timed out, continue with retry
+        logger.log('note', `Connection attempt ${attempt} failed: ${error?.message || 'unknown error'}`);
+      }
+
+      // Try to wake up the service worker
+      if (navigator.serviceWorker.controller) {
+        try {
+          navigator.serviceWorker.controller.postMessage({
+            type: 'wakeUpCall',
+          });
+        } catch {
+          // Ignore errors when posting message
+        }
+      }
+
+      // Wait before next attempt with exponential backoff
+      await plugins.smartdelay.delayFor(currentDelay);
+      currentDelay = Math.min(currentDelay * opts.backoffMultiplier, opts.maxDelayMs);
+    }
+
+    const duration = Date.now() - startTime;
+    logger.log('warn', `Service worker connection failed after ${opts.maxRetries} attempts (${duration}ms)`);
+    return {
+      connected: false,
+      error: 'max_retries_exceeded',
+      attempts: attempt,
+      duration,
+    };
+  }
+
+  /**
+   * Legacy method for backward compatibility - blocks until connected or gives up
+   * @deprecated Use waitForServiceWorkerConnection() instead which returns a result
+   */
+  public async waitForServiceWorkerConnectionBlocking(): Promise<void> {
+    const result = await this.waitForServiceWorkerConnection();
+    if (!result.connected) {
+      logger.log('warn', `Failed to connect to service worker: ${result.error}`);
     }
-    console.log('ok, got serviceworker connection.')
   }
 
   public async purgeServiceWorkerCache () {

ts_web_serviceworker_client/classes.serviceworkerclient.ts

@@ -5,28 +5,54 @@ import { NotificationManager } from './classes.notificationmanager.js';
 import { ActionManager } from './classes.actionmanager.js';
 import { GlobalSW } from './classes.globalsw.js'
 
+/**
+ * Polling options for service worker update checks
+ */
+export interface IPollingOptions {
+  intervalMs: number;         // Interval between update checks (default: 60000 - 1 minute)
+  pauseWhenHidden: boolean;   // Pause polling when page is hidden (default: true)
+  initialDelayMs: number;     // Initial delay before first poll (default: 2000)
+}
+
+const DEFAULT_POLLING_OPTIONS: IPollingOptions = {
+  intervalMs: 60000,        // 1 minute
+  pauseWhenHidden: true,
+  initialDelayMs: 2000,
+};
+
 export class ServiceworkerClient {
   // STATIC
-  public static async createServiceWorker(): Promise<ServiceworkerClient> {
+  private static pollingController: AbortController | null = null;
+  private static swRegistration: ServiceWorkerRegistration | null = null;
+  private static isPollingActive = false;
+
+  public static async createServiceWorker(
+    pollingOptions: Partial<IPollingOptions> = {}
+  ): Promise<ServiceworkerClient> {
     if ('serviceWorker' in navigator) {
       try {
         logger.log('info', 'trying to register serviceworker');
         // this is some magic for Parcel to not pick up the serviceworker
         const serviceworkerInNavigator: ServiceWorkerContainer = navigator.serviceWorker;
-        const swRegistration: ServiceWorkerRegistration = await serviceworkerInNavigator.register('/serviceworker.bundle.js', {
+        this.swRegistration = await serviceworkerInNavigator.register('/serviceworker.bundle.js', {
           scope: '/',
           updateViaCache: 'none'
         });
-        plugins.smartdelay.delayFor(2000).then(async () => {
-          swRegistration.onupdatefound = () => {
-            logger.log('info', 'update found for service worker!');
-            logger.log('warn', 'trying to find convenient time to update');
-          };
-          while(true) {
-            await plugins.smartdelay.delayFor(60000);
-            swRegistration.update();
-          }
-        });
+
+        this.swRegistration.onupdatefound = () => {
+          logger.log('info', 'update found for service worker!');
+          logger.log('warn', 'trying to find convenient time to update');
+        };
+
+        // Start polling with controllable abort mechanism
+        const opts = { ...DEFAULT_POLLING_OPTIONS, ...pollingOptions };
+        this.startPolling(opts);
+
+        // Set up visibility change handler to pause/resume polling
+        if (opts.pauseWhenHidden) {
+          this.setupVisibilityHandler(opts);
+        }
+
         logger.log('ok', 'serviceworker registered');
         await navigator.serviceWorker.ready;
         logger.log('ok', 'serviceworker is ready!');
@@ -41,6 +67,120 @@ export class ServiceworkerClient {
     }
   }
 
+  /**
+   * Starts the update polling loop with an AbortController
+   */
+  private static startPolling(opts: IPollingOptions): void {
+    // Cancel any existing polling
+    this.stopPolling();
+
+    this.pollingController = new AbortController();
+    this.isPollingActive = true;
+    const signal = this.pollingController.signal;
+
+    const poll = async () => {
+      // Initial delay
+      await plugins.smartdelay.delayFor(opts.initialDelayMs);
+
+      while (!signal.aborted && this.swRegistration) {
+        try {
+          // Check for updates
+          await this.swRegistration.update();
+          logger.log('note', 'Service worker update check completed');
+        } catch (err) {
+          if (!signal.aborted) {
+            logger.log('warn', `Service worker update check failed: ${err?.message || err}`);
+          }
+        }
+
+        // Wait for next interval, but check abort signal
+        if (!signal.aborted) {
+          await this.delayWithAbort(opts.intervalMs, signal);
+        }
+      }
+
+      this.isPollingActive = false;
+      logger.log('info', 'Service worker polling stopped');
+    };
+
+    // Start polling (fire and forget)
+    poll().catch((err) => {
+      if (!signal.aborted) {
+        logger.log('error', `Service worker polling error: ${err?.message || err}`);
+      }
+    });
+  }
+
+  /**
+   * Stops the polling loop
+   */
+  public static stopPolling(): void {
+    if (this.pollingController) {
+      this.pollingController.abort();
+      this.pollingController = null;
+    }
+    this.isPollingActive = false;
+  }
+
+  /**
+   * Sets up visibility change handler to pause/resume polling
+   */
+  private static setupVisibilityHandler(opts: IPollingOptions): void {
+    document.addEventListener('visibilitychange', () => {
+      if (document.visibilityState === 'hidden') {
+        // Page is hidden, stop polling to save resources
+        logger.log('note', 'Page hidden, pausing service worker polling');
+        this.stopPolling();
+      } else if (document.visibilityState === 'visible') {
+        // Page is visible again, resume polling
+        if (!this.isPollingActive && this.swRegistration) {
+          logger.log('note', 'Page visible, resuming service worker polling');
+          this.startPolling(opts);
+        }
+      }
+    });
+  }
+
+  /**
+   * Delay that can be aborted
+   */
+  private static delayWithAbort(ms: number, signal: AbortSignal): Promise<void> {
+    return new Promise((resolve) => {
+      const timeout = setTimeout(() => {
+        resolve();
+      }, ms);
+
+      signal.addEventListener('abort', () => {
+        clearTimeout(timeout);
+        resolve();
+      }, { once: true });
+    });
+  }
+
+  /**
+   * Manually triggers an update check
+   */
+  public static async triggerUpdateCheck(): Promise<void> {
+    if (this.swRegistration) {
+      try {
+        await this.swRegistration.update();
+        logger.log('ok', 'Manual service worker update check completed');
+      } catch (err) {
+        logger.log('error', `Manual update check failed: ${err?.message || err}`);
+        throw err;
+      }
+    } else {
+      logger.log('warn', 'Cannot trigger update check: no service worker registration');
+    }
+  }
+
+  /**
+   * Gets whether polling is currently active
+   */
+  public static get isPolling(): boolean {
+    return this.isPollingActive;
+  }
+
   private static async waitForController() {
     const done = new plugins.smartpromise.Deferred();
     const checkReady = () => {
@@ -66,4 +206,11 @@ export class ServiceworkerClient {
     this.actionManager = new ActionManager();
     this.globalSw = new GlobalSW(this);
   }
+
+  /**
+   * Cleanup method to stop polling when the client is no longer needed
+   */
+  public destroy(): void {
+    ServiceworkerClient.stopPolling();
+  }
 }

ts_web_serviceworker_client/index.ts

@@ -11,14 +11,17 @@ export type {
 import { logger } from './logging.js';
 logger.log('note', 'mainthread console initialized!');
 
-import { ServiceworkerClient } from './classes.serviceworkerclient.js';
+import { ServiceworkerClient, type IPollingOptions } from './classes.serviceworkerclient.js';
+import { type IConnectionOptions } from './classes.actionmanager.js';
 
 export type {
-  ServiceworkerClient
+  ServiceworkerClient,
+  IPollingOptions,
+  IConnectionOptions,
 }
 
-export const getServiceworkerClient = async () => {
-  const swClient = await ServiceworkerClient.createServiceWorker(); // lets setup the service worker
+export const getServiceworkerClient = async (pollingOptions?: Partial<IPollingOptions>) => {
+  const swClient = await ServiceworkerClient.createServiceWorker(pollingOptions); // lets setup the service worker
   logger.log('ok', 'service worker ready!'); // and wait for it to be ready
   return swClient;
 };