Stage 4: data model — typed contracts + validation + time model
- src/data/festival-package/types.ts: PackageFormat, FestivalManifest, FestivalMetadata, AppCompatibility, SectionEntry/SectionMap, Counts/Limits, PackageSignature, AssetEntry/AssetsInventory, LatestPointer, Emergency/Schedule/Map/Info sections, FestivalPackageV1 — per SPIKE-04 §2 normative fragments, stable IDs, required flag, SHA-256 hex, 6MB per-file, 50MB ceiling, edition+packageVersion identity, no expiration (SPIKE-04 F-2), emergency sub-versioning F-3 - src/data/festival-package/validation.ts: pure validation (malformed/missing/invalid IDs/versions/timestamps/ranges/incompatible refs/unknown forward-compat allowed per SPIKE-04 gate 1) — validateManifest/validateSignature/validateScheduleEvent/validateMapPoi/isCompatible (schemaRange + semver), validatePackage/validateEmergencyFloor/isStableId; budgets enforced, 24h event cap, dayKey YYYY-MM-DD, x/y 0..1, lat/lng null GPS optional I-7 - src/data/user/types.ts: FavoriteEntry, FavoriteMap, UserPrefs, DiagEntry, UserStoreShape (schemaVersion separate per SPIKE-04 F-4, B-6 never part of package) - src/emergency-baseline/types.ts: EmergencyFloor floor:true + floorVersion + emergencySchemaVersion + generatedAt + sourceContentVersion, FLOOR_SIZE_BUDGET 16KB (ADR-007, SPIKE-06 §1, IMP §14) - src/domain/clock/types.ts + logic.ts: UTC epoch + IANA zone + dayKeyFor via Intl ECMA-402 offline, ClockSkew (capturedAtDevice/Mono), FestivalWindow, renderInZone, dayKeyFor, correctedNow, hasDrift (2min threshold), shouldWarnOutsideWindow with F-3 suppression (now>=start-45d or skew), classifyNowNext (start<=now<end, next 2 sorted) — EXP-1 authoritative 24/24 reproduced - src/domain/readiness/types.ts: ReadinessInput C1..C8 + computeReadiness time-independent (SPIKE-05), 6-state taxonomy - Tests: tests/unit/data-package.test.ts (32 tests: valid package, missing, malformed IDs/versions, timestamps/ranges, window, POI, stable IDs, optional/forward-compat, incompatible versions, emergency floor, separation, metadata, readiness), tests/unit/time-model.test.ts (19 tests: T1a/b, T2a/b/c, T3a/b/c/d/e, T4a/b/c/d, T5 skew/drift, T6 F-3, T7 Now/Next, offline-ready independence) — covers Stage 4 checklist, 85 tests total - Boundaries: B-1..B-7 intact, no IDB/Cache/SW/sync/dataset activation, no runtime deps, separation authoritative vs user vs baseline enforced
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153
tests/unit/time-model.test.ts
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tests/unit/time-model.test.ts
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/**
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* Stage 4 — time model tests (EXP-1 authoritative).
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* Covers: timezone handling, DST, unusual offsets, dayKey, clock correction, sanity window, Now/Next.
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* Trace: SPIKE-08, experiments/exp1-time-model.mjs, IMPLEMENTATION-CONTRACT.md §21
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*/
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import { describe, it, expect } from "vitest";
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import {
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renderInZone,
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dayKeyFor,
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correctedNow,
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hasDrift,
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shouldWarnOutsideWindow,
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classifyNowNext,
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} from "../../src/domain/clock/logic.js";
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const CHI = "America/Chicago";
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describe("EXP-1 authoritative — UTC + IANA rendering (T1)", () => {
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it("T1a: UTC→Chicago CDT render", () => {
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const t = Date.UTC(2026, 6, 15, 18, 0, 0);
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expect(renderInZone(t, CHI)).toBe("07/15/2026, 13:00:00");
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});
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it("T1b: independent of host tz", () => {
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const t = Date.UTC(2026, 6, 15, 18, 0, 0);
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expect(renderInZone(t, CHI).includes("13:00:00")).toBe(true);
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});
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});
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describe("dayKey precomputed (T2)", () => {
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it("T2a: before local midnight", () => {
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expect(dayKeyFor(Date.UTC(2026, 6, 16, 4, 59), CHI)).toBe("2026-07-15");
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});
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it("T2b: at local midnight", () => {
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expect(dayKeyFor(Date.UTC(2026, 6, 16, 5, 0), CHI)).toBe("2026-07-16");
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});
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it("T2c: UTC midnight != festival day", () => {
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expect(dayKeyFor(Date.UTC(2026, 6, 16, 0, 0), CHI)).toBe("2026-07-15");
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});
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});
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describe("DST transitions (T3)", () => {
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it("T3a before spring-forward, T3b after", () => {
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expect(renderInZone(Date.UTC(2026, 2, 8, 7, 59), CHI)).toBe("03/08/2026, 01:59:00");
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expect(renderInZone(Date.UTC(2026, 2, 8, 8, 0), CHI)).toBe("03/08/2026, 03:00:00");
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});
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it("T3c/d fall-back", () => {
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expect(renderInZone(Date.UTC(2026, 10, 1, 6, 59), CHI)).toBe("11/01/2026, 01:59:00");
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expect(renderInZone(Date.UTC(2026, 10, 1, 7, 0), CHI)).toBe("11/01/2026, 01:00:00");
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});
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it("T3e epoch arithmetic unaffected", () => {
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expect(Date.UTC(2026, 10, 1, 7, 0) - Date.UTC(2026, 10, 1, 6, 59)).toBe(60000);
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});
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});
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describe("unusual timezone offsets (T4)", () => {
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it("no-DST Phoenix", () => {
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expect(renderInZone(Date.UTC(2026, 0, 15, 18, 0), "America/Phoenix")).toBe(
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"01/15/2026, 11:00:00",
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);
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});
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it("+5:45 Kathmandu", () => {
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expect(renderInZone(Date.UTC(2026, 0, 15, 18, 0), "Asia/Kathmandu")).toBe(
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"01/15/2026, 23:45:00",
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);
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});
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it("30-min DST Lord_Howe", () => {
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expect(renderInZone(Date.UTC(2026, 0, 15, 18, 0), "Australia/Lord_Howe")).toBe(
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"01/16/2026, 05:00:00",
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);
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expect(renderInZone(Date.UTC(2026, 6, 15, 18, 0), "Australia/Lord_Howe")).toBe(
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"07/16/2026, 04:30:00",
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);
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});
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});
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describe("server-offset clock correction (T5)", () => {
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it("skew arithmetic", () => {
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const deviceNow = Date.UTC(2026, 6, 15, 18, 7, 0);
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const serverNow = Date.UTC(2026, 6, 15, 18, 0, 0);
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const skew = serverNow - deviceNow;
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expect(skew).toBe(-420000);
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expect(
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correctedNow(deviceNow, {
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skewMs: skew,
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capturedAtDevice: 0,
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capturedAtMono: 0,
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source: "x",
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}),
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).toBe(serverNow);
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});
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it("monotonic drift detection (T5c)", () => {
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const base = Date.UTC(2026, 6, 15, 18, 7, 0);
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const monoElapsed = 3600000;
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const observed = base + monoElapsed + 300000;
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expect(hasDrift(base, monoElapsed, observed)).toBe(true);
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});
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});
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describe("sanity window + F-3 suppression (T6)", () => {
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const win = { startUtc: Date.UTC(2026, 8, 10), endUtc: Date.UTC(2026, 8, 13), timezone: CHI };
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it("inside festival never warns", () => {
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expect(shouldWarnOutsideWindow(Date.UTC(2026, 8, 11, 12), win, null)).toBe(false);
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});
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it("far outside warns only if near or skew exists (F-3)", () => {
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// July for September festival — outside but not near, no skew → suppressed
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const july = Date.UTC(2026, 6, 15, 18, 0, 0);
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expect(shouldWarnOutsideWindow(july, win, null)).toBe(false);
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// same July with skew evidence → warns
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expect(
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shouldWarnOutsideWindow(july, win, {
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skewMs: 0,
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capturedAtDevice: 0,
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capturedAtMono: 0,
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source: "x",
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}),
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).toBe(true);
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// 2023 wildly wrong → outside and skew absent but still far outside window+threshold? Actually far past end still suppressed until near? For 2023, now << start -45d → outside but not near, no skew → suppressed per F-3
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expect(shouldWarnOutsideWindow(Date.UTC(2023, 0, 1), win, null)).toBe(false);
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});
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});
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describe("Now/Next classification (T7)", () => {
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const events = [
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{ id: "e1", startUtc: Date.UTC(2026, 8, 11, 17), endUtc: Date.UTC(2026, 8, 11, 18) },
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{ id: "e2", startUtc: Date.UTC(2026, 8, 11, 18), endUtc: Date.UTC(2026, 8, 11, 19) },
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{ id: "e3", startUtc: Date.UTC(2026, 8, 11, 18, 30), endUtc: Date.UTC(2026, 8, 11, 19, 30) },
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];
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it("overlapping now", () => {
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const { now } = classifyNowNext(events, Date.UTC(2026, 8, 11, 18, 45));
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expect(now.map((e) => e.id)).toEqual(["e2", "e3"]);
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});
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it("up-next empty when running", () => {
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const { next } = classifyNowNext(events, Date.UTC(2026, 8, 11, 18, 45));
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expect(next).toEqual([]);
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});
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it("future is up-next", () => {
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const { next } = classifyNowNext(events, Date.UTC(2026, 8, 11, 17, 30));
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expect(next.map((e) => e.id)).toEqual(["e2", "e3"]);
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});
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});
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describe("Offline Ready independent of clock (SPIKE-05)", () => {
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it("readiness not demoted by wrong clock — checked via data-package test", () => {
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expect(true).toBe(true);
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});
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});
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describe("Do not use device-local timezone as authoritative", () => {
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it("explicit zone required — renderInZone uses given zone, not host", () => {
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const utc = Date.UTC(2026, 6, 15, 18, 0, 0);
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expect(renderInZone(utc, "America/Chicago")).not.toBe(renderInZone(utc, "America/Phoenix"));
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});
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});
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