import { describe, expect, it } from "@effect/vitest";import { vi } from "vite-plus/test";import * as Deferred from "effect/Deferred";import * as Duration from "effect/Duration";import * as Effect from "effect/Effect";import * as Fiber from "effect/Fiber";import * as Layer from "effect/Layer";import * as Option from "effect/Option";import * as PlatformError from "effect/PlatformError";import * as Sink from "effect/Sink";import * as Stream from "effect/Stream";import * as TestClock from "effect/testing/TestClock";import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process";import * as RelayClient from "@t3tools/shared/relayClient"; import * as ServerSecretStore from "../auth/ServerSecretStore.ts";import * as ManagedEndpointRuntime from "./ManagedEndpointRuntime.ts"; const relayClientAvailableLayer = Layer.succeed(  RelayClient.RelayClient,  RelayClient.RelayClient.of({    resolve: Effect.succeed({      status: "available",      executablePath: "cloudflared",      source: "path",      version: RelayClient.CLOUDFLARED_VERSION,    }),    install: Effect.die("unused"),    installWithProgress: () => Effect.die("unused"),  }),); const runtimeDependencies = (  spawner: ReturnType<typeof ChildProcessSpawner.make>,  relayClientLayer = relayClientAvailableLayer,) =>  Layer.mergeAll(    Layer.succeed(ChildProcessSpawner.ChildProcessSpawner, spawner),    relayClientLayer,    Layer.mock(ServerSecretStore.ServerSecretStore)({      get: () => Effect.succeed(Option.none()),    }),  ); const buildCloudManagedEndpointRuntime = (  spawner: ReturnType<typeof ChildProcessSpawner.make>,  relayClientLayer = relayClientAvailableLayer,) =>  Effect.gen(function* () {    const context = yield* Layer.build(      ManagedEndpointRuntime.layer.pipe(        Layer.provide(runtimeDependencies(spawner, relayClientLayer)),      ),    );    return yield* Effect.service(ManagedEndpointRuntime.CloudManagedEndpointRuntime).pipe(      Effect.provide(context),    );  }); function makeHandle(input: {  readonly pid: number;  readonly onKill: () => void;  readonly isRunning?: () => boolean;  readonly exitCode?: Effect.Effect<ChildProcessSpawner.ExitCode>;}) {  return ChildProcessSpawner.makeHandle({    pid: ChildProcessSpawner.ProcessId(input.pid),    exitCode: input.exitCode ?? Effect.never,    isRunning: Effect.sync(() => input.isRunning?.() ?? true),    kill: () =>      Effect.sync(() => {        input.onKill();      }),    unref: Effect.succeed(Effect.void),    stdin: Sink.drain,    stdout: Stream.empty,    stderr: Stream.empty,    all: Stream.empty,    getInputFd: () => Sink.drain,    getOutputFd: () => Stream.empty,  });} describe("CloudManagedEndpointRuntime", () => {  it("classifies Cloudflare connection and warning output", () => {    expect(      ManagedEndpointRuntime.classifyRelayClientOutput(        "2026-06-17T02:00:00Z INF Registered tunnel connection connIndex=0",      ),    ).toBe("connected");    expect(      ManagedEndpointRuntime.classifyRelayClientOutput(        "2026-06-17T02:00:00Z ERR Failed to serve tunnel connection",      ),    ).toBe("warning");    expect(      ManagedEndpointRuntime.classifyRelayClientOutput(        "2026-06-17T02:00:00Z INF Starting metrics server",      ),    ).toBe("debug");    // FTL (fatal) and PNC (panic) are more severe than ERR and must surface.    expect(      ManagedEndpointRuntime.classifyRelayClientOutput(        "2026-06-17T02:00:00Z FTL Cannot determine default origin certificate path",      ),    ).toBe("warning");    expect(      ManagedEndpointRuntime.classifyRelayClientOutput("2026-06-17T02:00:00Z PNC runtime panic"),    ).toBe("warning");  });   it.effect("starts, deduplicates, rotates, and stops the Cloudflare connector", () =>    Effect.gen(function* () {      const spawned: Array<ChildProcess.StandardCommand> = [];      const killed: Array<number> = [];      let nextPid = 100;      const spawner = ChildProcessSpawner.make((command) =>        Effect.gen(function* () {          if (!ChildProcess.isStandardCommand(command)) {            throw new Error("Expected standard command.");          }          spawned.push(command);          const pid = nextPid;          nextPid += 1;          const handle = makeHandle({            pid,            onKill: () => {              killed.push(pid);            },          });          yield* Effect.addFinalizer(() => handle.kill().pipe(Effect.ignore));          return handle;        }),      );      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token-1",        tunnelId: "tunnel-1",        tunnelName: "t3-code-env-1",      });      yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token-1",        tunnelId: "tunnel-1",        tunnelName: "t3-code-env-1",      });      yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token-2",        tunnelId: "tunnel-1",        tunnelName: "t3-code-env-1",      });      const stopped = yield* runtime.applyConfig(null);       expect(spawned.map((command) => command.command)).toEqual(["cloudflared", "cloudflared"]);      expect(spawned.map((command) => command.args)).toEqual([        ["tunnel", "run"],        ["tunnel", "run"],      ]);      expect(spawned.map((command) => command.options.env?.TUNNEL_TOKEN)).toEqual([        "token-1",        "token-2",      ]);      expect(spawned.map((command) => command.options.stdout)).toEqual(["pipe", "pipe"]);      expect(spawned.map((command) => command.options.stderr)).toEqual(["pipe", "pipe"]);      expect(spawned.map((command) => command.options.detached)).toEqual([false, false]);      expect(spawned.map((command) => command.options.shell)).toEqual([false, false]);      expect(killed).toEqual([100, 101]);      expect(stopped).toEqual({ status: "disabled" });    }),  );   it.effect("stops an active connector when a non-Cloudflare runtime config is applied", () =>    Effect.gen(function* () {      const killed: Array<number> = [];      const spawner = ChildProcessSpawner.make(() =>        Effect.gen(function* () {          const handle = makeHandle({            pid: 200,            onKill: () => {              killed.push(200);            },          });          yield* Effect.addFinalizer(() => handle.kill().pipe(Effect.ignore));          return handle;        }),      );      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       const started = yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token",      });      const unsupported = yield* runtime.applyConfig({        providerKind: "manual",        connectorToken: "manual-token",      });       expect(started.status).toBe("running");      expect(unsupported).toEqual({ status: "unsupported", providerKind: "manual" });      expect(killed).toEqual([200]);    }),  );   it.effect("restarts the connector when the active process has exited", () =>    Effect.gen(function* () {      const spawned: Array<number> = [];      const killed: Array<number> = [];      let firstRunning = true;      const spawner = ChildProcessSpawner.make(() =>        Effect.gen(function* () {          const pid = spawned.length === 0 ? 300 : 301;          spawned.push(pid);          const handle = makeHandle({            pid,            isRunning: () => (pid === 300 ? firstRunning : true),            onKill: () => {              killed.push(pid);            },          });          yield* Effect.addFinalizer(() => handle.kill().pipe(Effect.ignore));          return handle;        }),      );      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);      const config = {        providerKind: "cloudflare_tunnel" as const,        connectorToken: "token",        tunnelId: "tunnel-1",      };       const first = yield* runtime.applyConfig(config);      firstRunning = false;      const second = yield* runtime.applyConfig(config);       expect(first).toMatchObject({ status: "running", pid: 300 });      expect(second).toMatchObject({ status: "running", pid: 301 });      expect(spawned).toEqual([300, 301]);      expect(killed).toEqual([300]);    }),  );   it.effect("supervises the active connector and restarts it after process exit", () =>    Effect.gen(function* () {      const spawned: Array<number> = [];      const killed: Array<number> = [];      const firstExit = yield* Deferred.make<ChildProcessSpawner.ExitCode>();      const secondSpawned = yield* Deferred.make<void>();      const spawner = ChildProcessSpawner.make(() =>        Effect.gen(function* () {          const pid = spawned.length === 0 ? 400 : 401;          spawned.push(pid);          if (pid === 401) {            yield* Deferred.succeed(secondSpawned, undefined);          }          const handle = makeHandle({            pid,            exitCode:              pid === 400                ? Deferred.await(firstExit)                : (Effect.never as Effect.Effect<ChildProcessSpawner.ExitCode>),            onKill: () => {              killed.push(pid);            },          });          yield* Effect.addFinalizer(() => handle.kill().pipe(Effect.ignore));          return handle;        }),      );      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       const started = yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token",        tunnelId: "tunnel-1",      });      yield* Deferred.succeed(firstExit, ChildProcessSpawner.ExitCode(1));      yield* Deferred.await(secondSpawned);       expect(started).toMatchObject({ status: "running", pid: 400 });      expect(spawned).toEqual([400, 401]);      expect(killed).toEqual([400]);    }),  );   const makeCrashLoopSpawner = (basePid: number, slots: number) =>    Effect.gen(function* () {      const spawned: Array<number> = [];      const exits: Array<Deferred.Deferred<ChildProcessSpawner.ExitCode>> = [];      const spawnSignals: Array<Deferred.Deferred<void>> = [];      for (let index = 0; index < slots; index += 1) {        exits.push(yield* Deferred.make<ChildProcessSpawner.ExitCode>());        spawnSignals.push(yield* Deferred.make<void>());      }      const spawner = ChildProcessSpawner.make(() =>        Effect.gen(function* () {          const index = spawned.length;          spawned.push(basePid + index);          yield* Deferred.succeed(spawnSignals[index]!, undefined);          const handle = makeHandle({            pid: basePid + index,            exitCode: Deferred.await(exits[index]!),            onKill: () => {},          });          yield* Effect.addFinalizer(() => handle.kill().pipe(Effect.ignore));          return handle;        }),      );      return { spawner, spawned, exits, spawnSignals };    });   it.effect("backs off restarts while the connector crash-loops", () =>    Effect.gen(function* () {      const { spawner, spawned, exits, spawnSignals } = yield* makeCrashLoopSpawner(600, 4);      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token",        tunnelId: "tunnel-1",      });      expect(spawned).toEqual([600]);       // The first crash restarts immediately.      yield* Deferred.succeed(exits[0]!, ChildProcessSpawner.ExitCode(1));      yield* Deferred.await(spawnSignals[1]!);      expect(spawned).toEqual([600, 601]);       // The second rapid crash waits out the base delay before restarting.      yield* Deferred.succeed(exits[1]!, ChildProcessSpawner.ExitCode(1));      yield* TestClock.adjust(Duration.millis(999));      expect(spawned).toEqual([600, 601]);      yield* TestClock.adjust(Duration.millis(1));      yield* Deferred.await(spawnSignals[2]!);      expect(spawned).toEqual([600, 601, 602]);       // The third rapid crash doubles the delay.      yield* Deferred.succeed(exits[2]!, ChildProcessSpawner.ExitCode(1));      yield* TestClock.adjust(Duration.millis(1999));      expect(spawned).toEqual([600, 601, 602]);      yield* TestClock.adjust(Duration.millis(1));      yield* Deferred.await(spawnSignals[3]!);      expect(spawned).toEqual([600, 601, 602, 603]);    }).pipe(Effect.provide(TestClock.layer())),  );   it.effect("resets the backoff after the connector runs stably", () =>    Effect.gen(function* () {      const { spawner, spawned, exits, spawnSignals } = yield* makeCrashLoopSpawner(700, 5);      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token",      });       // One rapid crash arms the backoff.      yield* Deferred.succeed(exits[0]!, ChildProcessSpawner.ExitCode(1));      yield* Deferred.await(spawnSignals[1]!);       // The replacement stays up past the stable-uptime window, so its exit      // restarts immediately and the backoff starts over.      yield* TestClock.adjust(Duration.millis(30_000));      yield* Deferred.succeed(exits[1]!, ChildProcessSpawner.ExitCode(1));      yield* Deferred.await(spawnSignals[2]!);      yield* Deferred.succeed(exits[2]!, ChildProcessSpawner.ExitCode(1));      yield* Deferred.await(spawnSignals[3]!);       // The next rapid crash waits the base delay again, not a doubled one.      yield* Deferred.succeed(exits[3]!, ChildProcessSpawner.ExitCode(1));      yield* TestClock.adjust(Duration.millis(999));      expect(spawned).toEqual([700, 701, 702, 703]);      yield* TestClock.adjust(Duration.millis(1));      yield* Deferred.await(spawnSignals[4]!);      expect(spawned).toEqual([700, 701, 702, 703, 704]);    }).pipe(Effect.provide(TestClock.layer())),  );   it.effect("an explicit config change clears the backoff and preempts a delayed restart", () =>    Effect.gen(function* () {      const { spawner, spawned, exits, spawnSignals } = yield* makeCrashLoopSpawner(800, 3);      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token-1",      });      yield* Deferred.succeed(exits[0]!, ChildProcessSpawner.ExitCode(1));      yield* Deferred.await(spawnSignals[1]!);       // Leave the supervisor sleeping on the base delay, then change config.      yield* Deferred.succeed(exits[1]!, ChildProcessSpawner.ExitCode(1));      const status = yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token-2",      });      expect(status).toMatchObject({ status: "running", pid: 802 });      expect(spawned).toEqual([800, 801, 802]);       // The preempted supervisor wakes later and must not spawn a duplicate.      yield* TestClock.adjust(Duration.millis(60_000));      expect(spawned).toEqual([800, 801, 802]);    }).pipe(Effect.provide(TestClock.layer())),  );   it.effect("serializes concurrent connector config changes", () =>    Effect.gen(function* () {      const spawned: Array<number> = [];      const killed: Array<number> = [];      const firstSpawnEntered = yield* Deferred.make<void>();      const releaseFirstSpawn = yield* Deferred.make<void>();      const spawner = ChildProcessSpawner.make(() =>        Effect.gen(function* () {          const pid = 500 + spawned.length;          spawned.push(pid);          if (pid === 500) {            yield* Deferred.succeed(firstSpawnEntered, undefined);            yield* Deferred.await(releaseFirstSpawn);          }          const handle = makeHandle({            pid,            onKill: () => {              killed.push(pid);            },          });          yield* Effect.addFinalizer(() => handle.kill().pipe(Effect.ignore));          return handle;        }),      );      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       const first = yield* runtime        .applyConfig({          providerKind: "cloudflare_tunnel",          connectorToken: "token-1",        })        .pipe(Effect.forkChild);      yield* Deferred.await(firstSpawnEntered);      const second = yield* runtime        .applyConfig({          providerKind: "cloudflare_tunnel",          connectorToken: "token-2",        })        .pipe(Effect.forkChild);      yield* Deferred.succeed(releaseFirstSpawn, undefined);       yield* Fiber.join(first);      const status = yield* Fiber.join(second);       expect(status).toMatchObject({ status: "running", pid: 501 });      expect(spawned).toEqual([500, 501]);      expect(killed).toEqual([500]);    }),  );   it.effect("reports connector spawn failures", () =>    Effect.gen(function* () {      const spawner = ChildProcessSpawner.make(() =>        Effect.fail(          PlatformError.systemError({            _tag: "NotFound",            module: "ChildProcess",            method: "spawn",            description: "cloudflared missing",          }),        ),      );      const runtime = yield* buildCloudManagedEndpointRuntime(spawner);       const status = yield* runtime.applyConfig({        providerKind: "cloudflare_tunnel",        connectorToken: "token",        tunnelId: "tunnel-1",      });       expect(status).toMatchObject({        status: "failed",        providerKind: "cloudflare_tunnel",        tunnelId: "tunnel-1",      });    }),  );   it.effect("reports a missing relay client executable without spawning", () =>    Effect.gen(function* () {      const spawn = vi.fn();      const spawner = ChildProcessSpawner.make(spawn);      const runtime = yield* buildCloudManagedEndpointRuntime(        spawner,        Layer.succeed(          RelayClient.RelayClient,          RelayClient.RelayClient.of({            resolve: Effect.succeed({              status: "missing",              version: RelayClient.CLOUDFLARED_VERSION,            }),            install: Effect.die("unused"),            installWithProgress: () => Effect.die("unused"),

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