Move tracker to telemetry extension (#1092)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

extensions/telemetry/src/telemetry-preferences-store.ts

@@ -31,3 +31,5 @@ export class TelemetryPreferencesStore extends BaseStore<TelemetryPreferencesMod
     })
   }
 }
+
+export const telemetryPreferencesStore = TelemetryPreferencesStore.getInstance<TelemetryPreferencesStore>()

extensions/telemetry/src/tracker.ts

@@ -0,0 +1,72 @@
+import { Singleton, appEventBus, AppEvent } from "@lens/extensions"
+import ua from "universal-analytics"
+import { machineIdSync } from "node-machine-id"
+import { telemetryPreferencesStore } from "./telemetry-preferences-store"
+
+export class Tracker extends Singleton {
+  static readonly GA_ID = "UA-159377374-1"
+
+  protected eventHandlers: Array<(ev: AppEvent ) => void> = []
+  protected started = false
+  protected visitor: ua.Visitor
+  protected machineId: string = null;
+  protected ip: string = null;
+  protected appVersion: string;
+  protected locale: string;
+  protected electronUA: string;
+
+  private constructor() {
+    super();
+    try {
+      this.visitor = ua(Tracker.GA_ID, machineIdSync(), { strictCidFormat: false })
+    } catch (error) {
+      this.visitor = ua(Tracker.GA_ID)
+    }
+    this.visitor.set("dl", "https://telemetry.k8slens.dev")
+
+  }
+
+  start() {
+    if (this.started === true) { return }
+
+    this.started = true
+
+    const handler = (ev: AppEvent) => {
+      this.event(ev.name, ev.action, ev.params)
+    }
+    this.eventHandlers.push(handler)
+    appEventBus.addListener(handler)
+  }
+
+  stop() {
+    if (!this.started) { return }
+
+    this.started = false
+
+    for (const handler of this.eventHandlers) {
+      appEventBus.removeListener(handler)
+    }
+  }
+
+  protected async isTelemetryAllowed(): Promise<boolean> {
+    return telemetryPreferencesStore.enabled
+  }
+
+  protected async event(eventCategory: string, eventAction: string, otherParams = {}) {
+    try {
+      const allowed = await this.isTelemetryAllowed();
+      if (!allowed) {
+        return;
+      }
+      this.visitor.event({
+        ec: eventCategory,
+        ea: eventAction,
+        ...otherParams,
+      }).send()
+    } catch (err) {
+      console.error(`Failed to track "${eventCategory}:${eventAction}"`, err)
+    }
+  }
+}
+
+export const tracker = Tracker.getInstance<Tracker>();