import type { HostPowerSnapshot } from "@t3tools/contracts";import { describe, expect, it } from "@effect/vitest";import * as DateTime from "effect/DateTime";import * as Deferred from "effect/Deferred";import * as Effect from "effect/Effect";import * as Fiber from "effect/Fiber";import * as Ref from "effect/Ref";import * as Semaphore from "effect/Semaphore"; import {  canCommandNativeTelemetrySidecar,  canRequestNativeTelemetryRetry,  commitCollectionControlUpdate,  retainRecentNativeTelemetryFailures,  resolveNativeSampleIntervalMs,  synchronizeCollectionControlOnStart,} from "./NativeTelemetryClient.ts"; const basePower: HostPowerSnapshot = {  source: "electron-main",  idle: "false",  idleSeconds: 0,  locked: "false",  suspended: false,  onBattery: "false",  lowPowerMode: "false",  thermalState: "nominal",  stale: false,  updatedAt: DateTime.makeUnsafe("2026-06-17T12:00:00.000Z"),}; describe("resolveNativeSampleIntervalMs", () => {  it("keeps a recovery cadence while suspended and backs off under host constraints", () => {    expect(resolveNativeSampleIntervalMs({ ...basePower, suspended: true }, 1)).toBe(15_000);    expect(resolveNativeSampleIntervalMs({ ...basePower, locked: "true" }, 1)).toBe(15_000);    expect(resolveNativeSampleIntervalMs({ ...basePower, lowPowerMode: "true" }, 1)).toBe(15_000);    expect(resolveNativeSampleIntervalMs({ ...basePower, thermalState: "critical" }, 1)).toBe(      15_000,    );    expect(resolveNativeSampleIntervalMs({ ...basePower, onBattery: "true" }, 1)).toBe(5_000);  });   it("slows background telemetry and serves live diagnostics at 1Hz", () => {    const unknown: HostPowerSnapshot = {      ...basePower,      source: "unknown",      stale: true,    };    expect(resolveNativeSampleIntervalMs(unknown, 0)).toBe(5_000);    expect(resolveNativeSampleIntervalMs(unknown, 1)).toBe(1_000);    expect(      resolveNativeSampleIntervalMs(        { ...basePower, stale: true, locked: "true", suspended: true },        0,      ),    ).toBe(5_000);    expect(resolveNativeSampleIntervalMs(basePower, 0)).toBe(5_000);    expect(resolveNativeSampleIntervalMs(basePower, 1)).toBe(1_000);  });}); describe("canRequestNativeTelemetryRetry", () => {  it("only accepts retry while the supervisor is waiting without a live sidecar", () => {    expect(canRequestNativeTelemetryRetry("degraded", false)).toBe(true);    expect(canRequestNativeTelemetryRetry("unavailable", false)).toBe(true);    expect(canRequestNativeTelemetryRetry("degraded", true)).toBe(false);    expect(canRequestNativeTelemetryRetry("healthy", false)).toBe(false);    expect(canRequestNativeTelemetryRetry("starting", false)).toBe(false);  });}); describe("canCommandNativeTelemetrySidecar", () => {  it("keeps on-demand recovery commands available while a live sidecar is degraded", () => {    expect(canCommandNativeTelemetrySidecar("healthy", true)).toBe(true);    expect(canCommandNativeTelemetrySidecar("degraded", true)).toBe(true);    expect(canCommandNativeTelemetrySidecar("unavailable", true)).toBe(false);    expect(canCommandNativeTelemetrySidecar("degraded", false)).toBe(false);  });}); describe("retainRecentNativeTelemetryFailures", () => {  it("expires old failures so an isolated crash restarts from the initial backoff", () => {    expect(retainRecentNativeTelemetryFailures([0, 30_000], 90_001)).toEqual([]);    expect(retainRecentNativeTelemetryFailures([30_000, 60_000], 90_000)).toEqual([30_000, 60_000]);  });}); describe("commitCollectionControlUpdate", () => {  it.effect("retains desired demand and retries unapplied sidecar state", () =>    Effect.gen(function* () {      const initial = {        hostPower: basePower,        liveSubscriberCount: 0,        sampleIntervalMs: 5_000,      };      const desired = yield* Ref.make(initial);      const applied = yield* Ref.make(initial);      const failure = new Error("sidecar write failed");      const receivedStates: Array<readonly [number, number]> = [];       const received = yield* commitCollectionControlUpdate(        desired,        applied,        (current) => ({          ...current,          liveSubscriberCount: 1,          sampleIntervalMs: 1_000,        }),        (previous, next) => {          receivedStates.push([previous.sampleIntervalMs, next.sampleIntervalMs]);          return Effect.fail(failure);        },      ).pipe(Effect.flip);       expect(received).toBe(failure);      expect(yield* Ref.get(desired)).toEqual({        ...initial,        liveSubscriberCount: 1,        sampleIntervalMs: 1_000,      });      expect(yield* Ref.get(applied)).toEqual(initial);       yield* commitCollectionControlUpdate(        desired,        applied,        (current) => current,        (previous, next) => {          receivedStates.push([previous.sampleIntervalMs, next.sampleIntervalMs]);          return Effect.void;        },      );      expect(receivedStates).toEqual([        [5_000, 1_000],        [5_000, 1_000],      ]);      expect(yield* Ref.get(applied)).toEqual(yield* Ref.get(desired));    }),  );   it.effect("serializes startup synchronization with runtime control updates", () =>    Effect.gen(function* () {      const initial = {        hostPower: basePower,        liveSubscriberCount: 0,        sampleIntervalMs: 5_000,      };      const desired = yield* Ref.make(initial);      const applied = yield* Ref.make(initial);      const ready = yield* Ref.make(false);      const mutex = yield* Semaphore.make(1);      const startupApplying = yield* Deferred.make<void>();      const releaseStartup = yield* Deferred.make<void>();      const appliedIntervals: Array<number> = [];       const startupFiber = yield* synchronizeCollectionControlOnStart(        mutex,        desired,        applied,        (control) =>          Effect.sync(() => {            appliedIntervals.push(control.sampleIntervalMs);          }).pipe(            Effect.andThen(Deferred.succeed(startupApplying, undefined)),            Effect.andThen(Deferred.await(releaseStartup)),            Effect.asVoid,          ),        Ref.set(ready, true),      ).pipe(Effect.forkChild);      yield* Deferred.await(startupApplying);       const updateFiber = yield* mutex        .withPermits(1)(          commitCollectionControlUpdate(            desired,            applied,            (current) => ({              ...current,              liveSubscriberCount: 1,              sampleIntervalMs: 1_000,            }),            (_previous, next) =>              Effect.gen(function* () {                expect(yield* Ref.get(ready)).toBe(true);                appliedIntervals.push(next.sampleIntervalMs);              }),          ),        )        .pipe(Effect.forkChild);      yield* Effect.yieldNow;      expect(yield* Ref.get(desired)).toEqual(initial);       yield* Deferred.succeed(releaseStartup, undefined);      yield* Fiber.join(startupFiber);      yield* Fiber.join(updateFiber);       expect(appliedIntervals).toEqual([5_000, 1_000]);      expect(yield* Ref.get(applied)).toEqual(yield* Ref.get(desired));    }),  );});