import { assert, describe, it } from "@effect/vitest";import type { DesktopUpdateState } from "@t3tools/contracts"; import {  MAX_REMOTE_UPDATE_CHECKS,  MAX_REMOTE_UPDATE_DOWNLOADS,  nextRemoteDesktopUpdateStep,  normalizeRemoteUpdateReason,  type RemoteDesktopUpdateAttempts,} from "./remoteUpdateFlow.ts"; const NO_ATTEMPTS: RemoteDesktopUpdateAttempts = { checks: 0, downloads: 0 }; function makeState(overrides: Partial<DesktopUpdateState> = {}): DesktopUpdateState {  return {    enabled: true,    status: "idle",    channel: "latest",    currentVersion: "1.2.3",    hostArch: "arm64",    appArch: "arm64",    runningUnderArm64Translation: false,    availableVersion: null,    downloadedVersion: null,    releaseNotes: [],    downloadPercent: null,    checkedAt: null,    message: null,    errorContext: null,    canRetry: false,    omittedReleaseCount: 0,    ...overrides,  };} describe("nextRemoteDesktopUpdateStep", () => {  it("fails immediately when updates are disabled, preferring the known reason", () => {    const state = makeState({ enabled: false, status: "disabled" });    assert.deepEqual(nextRemoteDesktopUpdateStep(state, NO_ATTEMPTS, "dev build"), {      action: "done",      outcome: "failed",      reason: "dev build",    });    assert.deepEqual(nextRemoteDesktopUpdateStep(state, NO_ATTEMPTS, null), {      action: "done",      outcome: "failed",      reason: "Automatic updates are disabled on this machine.",    });  });   it("installs only from the downloaded status the updater will accept", () => {    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({ status: "downloaded", downloadedVersion: "1.2.4" }),        NO_ATTEMPTS,        null,      ),      { action: "install" },    );    // A previous install failure keeps status "downloaded", so a remote run    // retries the install.    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({          status: "downloaded",          downloadedVersion: "1.2.4",          errorContext: "install",          message: "quitAndInstall failed",        }),        NO_ATTEMPTS,        null,      ),      { action: "install" },    );    // A download survives an unrelated background updater error, so a run    // installs it instead of replaying that error.    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({          status: "error",          downloadedVersion: "1.2.4",          errorContext: null,          message: "background updater error",        }),        NO_ATTEMPTS,        null,      ),      { action: "install" },    );    // A leftover download behind a check error is not installable: fresh    // runs re-check, and post-check the error is terminal.    const staleError = makeState({      status: "error",      downloadedVersion: "1.2.4",      errorContext: "check",      message: "feed unreachable",    });    assert.deepEqual(nextRemoteDesktopUpdateStep(staleError, NO_ATTEMPTS, null), {      action: "check",    });    assert.deepEqual(nextRemoteDesktopUpdateStep(staleError, { checks: 1, downloads: 0 }, null), {      action: "done",      outcome: "failed",      reason: "feed unreachable",    });  });   it("rides along while a check or download is already in flight", () => {    assert.deepEqual(      nextRemoteDesktopUpdateStep(makeState({ status: "checking" }), NO_ATTEMPTS, null),      {        action: "wait",      },    );    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({ status: "downloading", availableVersion: "1.2.4", downloadPercent: 40 }),        NO_ATTEMPTS,        null,      ),      { action: "wait" },    );  });   it("downloads an available update until the attempt cap, then fails", () => {    const available = makeState({ status: "available", availableVersion: "1.2.4" });    assert.deepEqual(nextRemoteDesktopUpdateStep(available, NO_ATTEMPTS, null), {      action: "download",    });    assert.deepEqual(      nextRemoteDesktopUpdateStep(        available,        { checks: 1, downloads: MAX_REMOTE_UPDATE_DOWNLOADS },        null,      ),      {        action: "done",        outcome: "failed",        reason: "The desktop app failed to download the update.",      },    );    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({          status: "available",          availableVersion: "1.2.4",          message: "network blipped",        }),        { checks: 1, downloads: MAX_REMOTE_UPDATE_DOWNLOADS },        null,      ),      { action: "done", outcome: "failed", reason: "network blipped" },    );  });   it("re-checks stale up-to-date and error states before trusting them", () => {    // These states are retained from earlier/background checks; a remote    // request must look again instead of replaying them.    assert.deepEqual(      nextRemoteDesktopUpdateStep(makeState({ status: "up-to-date" }), NO_ATTEMPTS, null),      { action: "check" },    );    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({ status: "error", message: "feed unreachable" }),        NO_ATTEMPTS,        null,      ),      { action: "check" },    );  });   it("reports up-to-date and error states as terminal after this run's check", () => {    const checked = { checks: 1, downloads: 0 };    assert.deepEqual(      nextRemoteDesktopUpdateStep(makeState({ status: "up-to-date" }), checked, null),      { action: "done", outcome: "up-to-date" },    );    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState({ status: "error", message: "feed unreachable" }),        checked,        null,      ),      { action: "done", outcome: "failed", reason: "feed unreachable" },    );    assert.deepEqual(nextRemoteDesktopUpdateStep(makeState({ status: "error" }), checked, null), {      action: "done",      outcome: "failed",      reason: "The desktop app update failed.",    });  });   it("checks from idle until the attempt cap, then fails", () => {    assert.deepEqual(nextRemoteDesktopUpdateStep(makeState(), NO_ATTEMPTS, null), {      action: "check",    });    assert.deepEqual(      nextRemoteDesktopUpdateStep(        makeState(),        { checks: MAX_REMOTE_UPDATE_CHECKS, downloads: 0 },        null,      ),      {        action: "done",        outcome: "failed",        reason: "The desktop app did not report an update result.",      },    );  });   it("drops blank reasons so the wire report still encodes", () => {    assert.equal(normalizeRemoteUpdateReason(undefined), undefined);    assert.equal(normalizeRemoteUpdateReason(""), undefined);    assert.equal(normalizeRemoteUpdateReason("   "), undefined);    assert.equal(normalizeRemoteUpdateReason("  feed unreachable  "), "feed unreachable");  });});