vojo/apps/widget-telegram/src/state.ts

677 lines
28 KiB
TypeScript

// Login state machine — consumes LoginEvent (one per inbound m.notice from
// the bridge bot) and emits a typed UI state. The widget renders forms and
// the status pill from this state, never from raw reply strings.
//
// Multi-reply collapse is implemented here: when the bot emits two notices
// for a single transition (2fa instructions + password re-prompt; invalid
// code + code re-prompt; wrong password + password re-prompt), the second
// notice arrives as `awaiting_password` / `awaiting_code` and the reducer
// recognises it as a no-op against the state already set by the first.
//
// State-gating policy: prompt events (`awaiting_*`) and step-error events
// (`twofa_required`, `invalid_code`, `wrong_password`, `submit_failed`,
// `invalid_value`) are valid only from a *plausible previous state*.
// Without these gates, late prompt-events can resurrect cancelled or
// completed flows — e.g. user submits phone, clicks Cancel, bot's pipeline
// already started a Telegram API call and emits `Please enter your Code…`
// AFTER the cancel reply lands. The reducer here ignores that late prompt
// because we're already `disconnected`.
import type { LoginEvent, ListedLogin } from './bridge-protocol/types';
export type LoginErrorFlag =
| { kind: 'invalid_code' }
| { kind: 'wrong_password' }
| { kind: 'submit_failed'; reason?: string }
| { kind: 'invalid_value'; reason?: string }
| { kind: 'prepare_failed'; reason?: string }
| { kind: 'start_failed'; reason?: string }
| { kind: 'login_in_progress' }
| { kind: 'max_logins'; limit?: number }
| { kind: 'unknown_command' };
// A live form is open and waiting for user input. M12.5's hydrate path
// can ONLY ever produce one of these — every other final state falls
// through to live `list-logins` reconciliation.
export type PendingFormState =
| { kind: 'awaiting_phone'; lastError?: LoginErrorFlag }
| { kind: 'awaiting_code'; lastError?: LoginErrorFlag }
| { kind: 'awaiting_password'; lastError?: LoginErrorFlag };
export type LoginState =
// Pre-handshake / pre-list-logins. Status pill: --faint.
| { kind: 'unknown' }
// list-logins came back empty, OR logout completed. Status pill: --rose
// (disconnected = needs action).
| { kind: 'disconnected'; lastError?: LoginErrorFlag }
// After "Войти по номеру" — waiting for `Please enter your Phone number`.
// After phone submit — waiting for code prompt OR error reply.
// After code submit (when the bot decided 2fa is needed) — waiting for
// password submission. lastError carries `wrong_password` after a failed
// password retry. Status pill: --amber for all three.
| PendingFormState
// logout in flight — waiting for `Logged out`. Status pill: --amber.
| { kind: 'logging_out'; loginId: string }
// Live session. login carries the parsed handle/numericId from
// `Successfully logged in as <handle> (<id>)`, plus the loginId we need
// for `!tg logout <id>`. Status pill: --green.
| {
kind: 'connected';
handle: string;
numericId?: string;
loginId?: string;
};
// Outbound user actions the App dispatches. Form-submit actions clear any
// pending lastError; structural transitions (start_login, request_logout,
// cancel_pending) optimistically advance state — the App rolls them back
// on send-failure where the bot would otherwise leave us stuck.
export type LoginAction =
| { kind: 'event'; event: LoginEvent }
| { kind: 'start_login' } // user clicked "Войти по номеру"
| { kind: 'submit_phone' } // user clicked submit on phone form
| { kind: 'submit_code' } // user clicked submit on code form
| { kind: 'submit_password' } // user clicked submit on 2fa form
| { kind: 'request_logout'; loginId: string } // user clicked "Выйти"
| { kind: 'cancel_pending' } // user clicked "Отмена"
| { kind: 'hydrate'; state: PendingFormState }; // M12.5 timeline-resume seed
export const initialLoginState: LoginState = { kind: 'unknown' };
const pickConnected = (logins: ListedLogin[]): LoginState => {
if (logins.length === 0) return { kind: 'disconnected' };
// M12 ships single-account UI (max_logins=1 in the operator's bridge
// config). If a future deployment runs with multiple logins, we still
// surface the first one — multi-account UI is a follow-up phase. The
// loginId here is what the widget will pass to `!tg logout <id>`.
const [first] = logins;
return {
kind: 'connected',
handle: first.name,
loginId: first.id,
};
};
// Whether a `awaiting_code` prompt is plausible from the current state.
// Plausible: just submitted phone (still in awaiting_phone), or the bot
// is re-prompting after invalid_code (we're already in awaiting_code).
const acceptsCodePrompt = (s: LoginState): boolean =>
s.kind === 'awaiting_phone' || s.kind === 'awaiting_code';
// Whether a `awaiting_password` re-prompt is plausible. The TRANSITION to
// password (from awaiting_code) is driven by `twofa_required`, not by the
// re-prompt itself; the re-prompt only confirms we're still waiting.
const acceptsPasswordReprompt = (s: LoginState): boolean => s.kind === 'awaiting_password';
// Whether `twofa_required` is plausible. It can only follow a code submit.
const acceptsTwofa = (s: LoginState): boolean => s.kind === 'awaiting_code';
// Whether step-scoped errors (invalid_code, wrong_password, invalid_value,
// submit_failed) should land on a form. Form-scoped errors are dropped
// when no form is open. Shared by the live reducer and the hydrate path —
// the predicate body and the resulting type are identical.
const isFormState = (s: LoginState): s is PendingFormState =>
s.kind === 'awaiting_phone' || s.kind === 'awaiting_code' || s.kind === 'awaiting_password';
export const loginReducer = (state: LoginState, action: LoginAction): LoginState => {
if (action.kind === 'hydrate') {
// M12.5: hydrate is a one-shot mount-time seed. It races against live
// events that may arrive between `on('ready')` firing and our async
// readTimeline resolving — bridgev2 / cinny's BotWidgetEmbed can push
// a new bot reply via send_event during that window. If a live event
// has already moved us off `unknown`, the live truth wins; the cached
// timeline snapshot is by definition older than what the live event
// just told us. Without this gate, a stale `awaiting_code` from the
// pre-reload session could overwrite a legitimate `connected` that
// arrived during the await.
if (state.kind !== 'unknown') return state;
return action.state;
}
if (action.kind === 'start_login') {
return { kind: 'awaiting_phone' };
}
if (action.kind === 'submit_phone') {
// Stay on the phone form until the bot confirms with `awaiting_code`.
// Optimistic transition to awaiting_code would mis-surface a phone-side
// error (e.g. `submit_failed: PHONE_NUMBER_BANNED`) on the code form.
if (state.kind === 'awaiting_phone') {
return { kind: 'awaiting_phone', lastError: undefined };
}
return state;
}
if (action.kind === 'submit_code') {
if (state.kind === 'awaiting_code') {
return { kind: 'awaiting_code', lastError: undefined };
}
return state;
}
if (action.kind === 'submit_password') {
if (state.kind === 'awaiting_password') {
return { kind: 'awaiting_password', lastError: undefined };
}
return state;
}
if (action.kind === 'request_logout') {
return { kind: 'logging_out', loginId: action.loginId };
}
if (action.kind === 'cancel_pending') {
// Optimistic: drop straight back to disconnected. The bot's reply will
// be `Login cancelled.` (cancel_ok) or `No ongoing command.`
// (cancel_no_op) — either way the user has signalled they want out.
return { kind: 'disconnected' };
}
const event = action.event;
switch (event.kind) {
case 'logins_listed':
// list-logins is the source of truth — accept from any state.
return pickConnected(event.logins);
case 'not_logged_in':
// Same gating idea as the prompt events: a late-arriving
// `You're not logged in` from a list-logins fired before the user
// started a fresh login flow would otherwise wipe an active form.
// Accept only from states where flipping to disconnected is correct.
if (
state.kind === 'unknown' ||
state.kind === 'disconnected' ||
state.kind === 'logging_out'
) {
return { kind: 'disconnected' };
}
return state;
case 'awaiting_phone':
// Bot's "Please enter your Phone number". Only meaningful when we
// initiated phone-login (state already awaiting_phone). From any
// other state — including the late-arriving prompt after a cancel
// — drop it on the floor.
return state.kind === 'awaiting_phone' ? state : state;
case 'awaiting_code':
// Plausible after submitting phone, or as a re-prompt within the
// code form. Late arrival after cancel/connected/logging_out is
// ignored to avoid resurrecting dead flows.
if (!acceptsCodePrompt(state)) return state;
if (state.kind === 'awaiting_phone') return { kind: 'awaiting_code' };
return state;
case 'awaiting_password':
// Pure re-prompt arm. The TRANSITION to awaiting_password is driven
// by `twofa_required` (or `wrong_password`), not by this event.
// Ignored when we're not already on the password form.
if (!acceptsPasswordReprompt(state)) return state;
return state;
case 'twofa_required':
// First of the two-reply 2fa transition. Only valid after a code
// submit. Ignored from disconnected/connected/etc.
if (!acceptsTwofa(state)) return state;
return { kind: 'awaiting_password' };
case 'invalid_code':
if (state.kind !== 'awaiting_code') return state;
return { kind: 'awaiting_code', lastError: { kind: 'invalid_code' } };
case 'wrong_password':
if (state.kind !== 'awaiting_password') return state;
return { kind: 'awaiting_password', lastError: { kind: 'wrong_password' } };
case 'login_success':
// Always honour — even if state somehow drifted, the bridge says we're in.
return {
kind: 'connected',
handle: event.handle,
numericId: event.numericId,
// loginId is unknown until the post-success list-logins fires
// (App.tsx). Until then, logout is gated.
};
case 'logout_ok':
// Late `Logged out` from a previous session can arrive while the user
// is mid-new-flow (e.g. they cancelled, started login again, and the
// old logout's reply finally lands). Only honour from logging_out;
// other states keep their flow.
if (state.kind !== 'logging_out') return state;
return { kind: 'disconnected' };
case 'cancel_ok':
case 'cancel_no_op':
// The App's `cancel_pending` action ALWAYS optimistically lands us
// in `disconnected` before the bot's confirmation arrives. So a
// legitimate cancel-reply naturally finds state === 'disconnected'
// — accepting it then is a safe idempotent no-op transition.
//
// From ANY other state (awaiting_*, connected, logging_out,
// unknown), the cancel reply is stale: the user has either started
// a new flow (state already moved on) or never cancelled in this
// widget session at all. Letting it through would clobber an
// active flow — exactly the race the reviewer flagged: cancel +
// immediate re-login = late cancel_ok kicking awaiting_phone
// back to disconnected.
//
// (Out-of-band manual `!tg cancel` typed in chat-fallback while
// the widget shows an active form would also be ignored. That's
// accepted scope: we don't run a causality/epoch system, and the
// chat-fallback flow is an escape hatch, not a primary surface.)
if (state.kind !== 'disconnected') return state;
return { kind: 'disconnected' };
case 'login_in_progress':
// Surfaces when the user clicked Войти по номеру but the bridge
// already has a stale flow open. Form-level warning if a form is
// open; otherwise dropped so we don't manufacture a disconnected
// banner from nothing.
if (isFormState(state)) {
return { ...state, lastError: { kind: 'login_in_progress' } };
}
return state;
case 'max_logins':
// Should not fire for max_logins=1 operators when our UI hides
// login while connected. If it does fire, the user is in a race;
// surface the error on disconnected so they can logout first.
return { kind: 'disconnected', lastError: { kind: 'max_logins', limit: event.limit } };
case 'login_not_found':
// Logout target id was wrong. Treat as disconnected — bridge clearly
// doesn't know that login id any more.
return { kind: 'disconnected' };
case 'invalid_value':
// Bridge rejected our submitted phone/code/password (e.g. malformed
// phone). Keep the form open with an error; if no form is open,
// ignore so we don't pollute disconnected state.
if (!isFormState(state)) return state;
return { ...state, lastError: { kind: 'invalid_value', reason: event.reason } };
case 'submit_failed':
// Telegram-side error (FloodWait, banned, etc.) leaked through
// bridgev2's commands layer. Hold the current form open so the user
// can retry; surface the verbatim Go error tail in the warning.
if (!isFormState(state)) return state;
return { ...state, lastError: { kind: 'submit_failed', reason: event.reason } };
case 'prepare_failed':
return { kind: 'disconnected', lastError: { kind: 'prepare_failed', reason: event.reason } };
case 'start_failed':
return { kind: 'disconnected', lastError: { kind: 'start_failed', reason: event.reason } };
case 'flow_required':
case 'flow_invalid':
// We always send `login phone` so this shouldn't happen. If it does,
// the operator-config / bridge mismatch is loud enough to fail
// visibly on the disconnected screen.
return { kind: 'disconnected', lastError: { kind: 'start_failed', reason: 'flow' } };
case 'unknown_command':
// Shouldn't happen — we only send commands the bridge knows. If it
// does, the operator-config / bridge image is mismatched; surface it
// loudly on the disconnected screen so the misconfig is visible.
return { kind: 'disconnected', lastError: { kind: 'unknown_command' } };
case 'unknown':
return state;
default: {
// Exhaustiveness check — if a new LoginEvent kind is added without a
// case, TypeScript will flag this as a compile error.
const exhaustive: never = event;
return exhaustive;
}
}
};
// --- M12.5 hydrate-from-timeline -----------------------------------------
//
// Why a separate reducer: the live `loginReducer` above intentionally rejects
// "out-of-thin-air" prompt events to defend against late-arriving replies
// from cancelled flows resurrecting forms. Those gates are correct for live
// traffic but useless for hydrate — from `unknown` they would drop every
// awaiting_* prompt and we'd render nothing.
//
// The hydrate reducer is permissive: it walks bot replies in chronological
// order and lets each one freely transition the state. We trust the timeline
// because (a) the sender is filtered to bootstrap.botMxid by the caller and
// (b) the events are durable bridge writes, not arbitrary user input.
//
// Hard scope: hydrate only ever returns one of awaiting_phone / awaiting_code
// / awaiting_password (with optional lastError) or null. Terminal-ish final
// states (login_success, logout_ok, cancel_*, not_logged_in, max_logins,
// login_not_found, prepare_failed, start_failed, flow_*, unknown_command)
// always fall back to null so App.tsx fires `list-logins` for authoritative
// reconciliation.
// UX freshness guard, NOT bridge truth. Bridgev2's CommandState has no
// explicit TTL — it lives in User.CommandState until submit/cancel/restart
// clears it, so a "stale" prompt could in fact still be active at the bridge.
// This window is the UX-side judgement call: a 10-min-old code prompt is
// worth resurfacing (Telegram's own SMS code TTL ~5 min, plus margin), a
// day-old one is not. Tuned for code/password forms; phone is cheap enough
// that the same window applies.
const HYDRATE_FRESHNESS_MS = 10 * 60 * 1000;
export type HydrateInput = {
ev: LoginEvent;
// origin_server_ts of the underlying m.notice. Used for the freshness
// check on the LAST significant pending prompt only.
ts: number;
};
type HydrateAccumulator = {
state: LoginState;
// Timestamp of the most recent event that contributed to a non-unknown,
// non-terminal pending state. Drives the freshness gate.
pendingTs: number | null;
// Once a terminal event lands, we stop honouring later pending prompts in
// the same scan — terminal collapses the chain and any subsequent pending
// prompt is a fresh flow that the live `list-logins` will reconcile.
terminated: boolean;
};
// Apply one event with permissive rules. Unlike the live reducer, every
// transition is allowed from any predecessor — we're rebuilding past truth,
// not protecting against late races.
const stepHydrate = (acc: HydrateAccumulator, input: HydrateInput): HydrateAccumulator => {
const { ev, ts } = input;
// After a terminal event (cancel_ok / logout_ok / login_success / …) we
// normally stop tracking — anything that follows is by definition a fresh
// flow that the live `list-logins` will reconcile. EXCEPT for one case:
// if `awaiting_phone` shows up, that IS the bridgev2 signature of `!tg
// login phone` being re-issued. The user cancelled (or finished) and is
// now logging in again; the chain should resume tracking from the new
// start. Without this re-entry, sequences like
// [awaiting_code, cancel_ok, awaiting_phone, awaiting_code]
// (cancel-then-restart, mid-code) would return null and regress the very
// M12.5 bug we set out to fix.
if (acc.terminated && ev.kind !== 'awaiting_phone') {
return acc;
}
switch (ev.kind) {
case 'awaiting_phone':
return { state: { kind: 'awaiting_phone' }, pendingTs: ts, terminated: false };
case 'awaiting_code':
return { state: { kind: 'awaiting_code' }, pendingTs: ts, terminated: false };
case 'awaiting_password':
return { state: { kind: 'awaiting_password' }, pendingTs: ts, terminated: false };
case 'twofa_required':
return { state: { kind: 'awaiting_password' }, pendingTs: ts, terminated: false };
case 'invalid_code':
return {
state: { kind: 'awaiting_code', lastError: { kind: 'invalid_code' } },
pendingTs: ts,
terminated: false,
};
case 'wrong_password':
return {
state: { kind: 'awaiting_password', lastError: { kind: 'wrong_password' } },
pendingTs: ts,
terminated: false,
};
case 'invalid_value':
// Form-scoped soft error: only surface if we're already on a form.
if (!isFormState(acc.state)) return acc;
return {
state: { ...acc.state, lastError: { kind: 'invalid_value', reason: ev.reason } },
pendingTs: ts,
terminated: false,
};
case 'submit_failed':
if (!isFormState(acc.state)) return acc;
return {
state: { ...acc.state, lastError: { kind: 'submit_failed', reason: ev.reason } },
pendingTs: ts,
terminated: false,
};
// Terminal events — collapse the chain. The state at this point is
// whatever-the-bot-confirmed-last; we don't care which, the caller
// returns null and lets `list-logins` reconcile.
case 'login_success':
case 'logout_ok':
case 'cancel_ok':
case 'cancel_no_op':
case 'not_logged_in':
case 'max_logins':
case 'login_not_found':
case 'prepare_failed':
case 'start_failed':
case 'flow_required':
case 'flow_invalid':
case 'unknown_command':
return { state: acc.state, pendingTs: null, terminated: true };
case 'logins_listed':
// A list-logins reply landed in history. Empty list means user wasn't
// logged in at that point; non-empty means they were. Both are
// terminal-ish for hydrate purposes — fall through to live
// reconciliation rather than guess at validity from cached snapshot.
return { state: acc.state, pendingTs: null, terminated: true };
case 'login_in_progress':
case 'unknown':
// Soft no-op for hydrate. login_in_progress is a live-flow warning
// that doesn't reflect persistent state; unknown is a wording-drift
// catch-all — neither should advance hydrate state.
return acc;
default: {
const exhaustive: never = ev;
return exhaustive;
}
}
};
export const hydrateFromTimeline = (
inputs: ReadonlyArray<HydrateInput>,
now: number = Date.now()
): PendingFormState | null => {
const acc = inputs.reduce<HydrateAccumulator>(stepHydrate, {
state: { kind: 'unknown' },
pendingTs: null,
terminated: false,
});
if (acc.terminated) return null;
if (!isFormState(acc.state)) return null;
if (acc.pendingTs === null) return null;
if (now - acc.pendingTs > HYDRATE_FRESHNESS_MS) return null;
return acc.state;
};
// --- DEV sanity assertions ------------------------------------------------
// Mirrors the dialect-side runSanityChecks pattern — failure throws, dev
// overlay surfaces it on reload, production builds tree-shake the branch.
if (import.meta.env.DEV) {
runHydrateSanity();
}
function runHydrateSanity(): void {
const t0 = 1_700_000_000_000;
const recent = (offset: number) => t0 + offset;
const now = t0 + 60 * 1000; // 1 minute after t0
const cases: Array<{
name: string;
inputs: HydrateInput[];
expected: LoginState | null;
nowOverride?: number;
}> = [
{
name: 'empty timeline → null',
inputs: [],
expected: null,
},
{
name: 'lone phone prompt → awaiting_phone',
inputs: [{ ev: { kind: 'awaiting_phone' }, ts: recent(0) }],
expected: { kind: 'awaiting_phone' },
},
{
name: 'phone → code → awaiting_code',
inputs: [
{ ev: { kind: 'awaiting_phone' }, ts: recent(0) },
{ ev: { kind: 'awaiting_code' }, ts: recent(1000) },
],
expected: { kind: 'awaiting_code' },
},
{
name: '2fa pair → awaiting_password',
inputs: [
{ ev: { kind: 'awaiting_phone' }, ts: recent(0) },
{ ev: { kind: 'awaiting_code' }, ts: recent(1000) },
{ ev: { kind: 'twofa_required' }, ts: recent(2000) },
{ ev: { kind: 'awaiting_password' }, ts: recent(2100) },
],
expected: { kind: 'awaiting_password' },
},
{
name: 'invalid_code retry → awaiting_code with error',
inputs: [
{ ev: { kind: 'awaiting_code' }, ts: recent(0) },
{ ev: { kind: 'invalid_code' }, ts: recent(1000) },
{ ev: { kind: 'awaiting_code' }, ts: recent(1100) },
],
expected: { kind: 'awaiting_code' }, // re-prompt clears the error — same as live reducer
},
{
name: 'invalid_code as final event → awaiting_code with error',
inputs: [
{ ev: { kind: 'awaiting_code' }, ts: recent(0) },
{ ev: { kind: 'invalid_code' }, ts: recent(1000) },
],
expected: { kind: 'awaiting_code', lastError: { kind: 'invalid_code' } },
},
{
name: 'wrong_password as final event → awaiting_password with error',
inputs: [
{ ev: { kind: 'awaiting_password' }, ts: recent(0) },
{ ev: { kind: 'wrong_password' }, ts: recent(1000) },
],
expected: { kind: 'awaiting_password', lastError: { kind: 'wrong_password' } },
},
{
name: 'login_success after pending → null (let list-logins reconcile)',
inputs: [
{ ev: { kind: 'awaiting_password' }, ts: recent(0) },
{
ev: { kind: 'login_success', handle: '@x', numericId: '1' },
ts: recent(1000),
},
],
expected: null,
},
{
name: 'cancel_ok after pending → null',
inputs: [
{ ev: { kind: 'awaiting_phone' }, ts: recent(0) },
{ ev: { kind: 'cancel_ok' }, ts: recent(1000) },
],
expected: null,
},
{
name: 'not_logged_in alone → null',
inputs: [{ ev: { kind: 'not_logged_in' }, ts: recent(0) }],
expected: null,
},
{
name: 'awaiting_phone after terminal → restart chain (resume tracking)',
inputs: [
{ ev: { kind: 'awaiting_code' }, ts: recent(0) },
{ ev: { kind: 'cancel_ok' }, ts: recent(1000) },
{ ev: { kind: 'awaiting_phone' }, ts: recent(2000) },
],
expected: { kind: 'awaiting_phone' },
},
{
name: 'cancel-then-restart-mid-code → awaiting_code (the reviewer-#11 regression)',
inputs: [
{ ev: { kind: 'awaiting_code' }, ts: recent(0) },
{ ev: { kind: 'cancel_ok' }, ts: recent(1000) },
{ ev: { kind: 'awaiting_phone' }, ts: recent(2000) },
{ ev: { kind: 'awaiting_code' }, ts: recent(3000) },
],
expected: { kind: 'awaiting_code' },
},
{
name: 'logout-then-relogin-mid-password → awaiting_password',
inputs: [
{ ev: { kind: 'awaiting_phone' }, ts: recent(0) },
{ ev: { kind: 'awaiting_code' }, ts: recent(1000) },
{ ev: { kind: 'login_success', handle: '@x', numericId: '1' }, ts: recent(2000) },
{ ev: { kind: 'logout_ok' }, ts: recent(3000) },
{ ev: { kind: 'awaiting_phone' }, ts: recent(4000) },
{ ev: { kind: 'awaiting_code' }, ts: recent(5000) },
{ ev: { kind: 'twofa_required' }, ts: recent(6000) },
{ ev: { kind: 'awaiting_password' }, ts: recent(6100) },
],
expected: { kind: 'awaiting_password' },
},
{
name: 'stale prompt without preceding awaiting_phone → still terminated → null',
inputs: [
{ ev: { kind: 'awaiting_code' }, ts: recent(0) },
{ ev: { kind: 'cancel_ok' }, ts: recent(1000) },
{ ev: { kind: 'awaiting_code' }, ts: recent(2000) },
],
expected: null,
},
{
name: 'pending too old → null (freshness guard)',
inputs: [{ ev: { kind: 'awaiting_code' }, ts: t0 - 30 * 60 * 1000 }],
expected: null,
},
{
name: 'pending just inside window → state',
inputs: [{ ev: { kind: 'awaiting_code' }, ts: t0 - 9 * 60 * 1000 }],
expected: { kind: 'awaiting_code' },
nowOverride: t0,
},
{
name: 'submit_failed on pending → keeps form with warn',
inputs: [
{ ev: { kind: 'awaiting_phone' }, ts: recent(0) },
{ ev: { kind: 'submit_failed', reason: 'PHONE_NUMBER_BANNED' }, ts: recent(1000) },
],
expected: {
kind: 'awaiting_phone',
lastError: { kind: 'submit_failed', reason: 'PHONE_NUMBER_BANNED' },
},
},
{
name: 'login_in_progress alone → null (soft no-op, no pending state)',
inputs: [{ ev: { kind: 'login_in_progress' }, ts: recent(0) }],
expected: null,
},
{
name: 'unknown alone → null',
inputs: [{ ev: { kind: 'unknown' }, ts: recent(0) }],
expected: null,
},
];
for (const c of cases) {
const actual = hydrateFromTimeline(c.inputs, c.nowOverride ?? now);
if (!sameLoginState(actual, c.expected)) {
// eslint-disable-next-line no-console
console.error('[hydrate sanity] mismatch', { case: c.name, actual, expected: c.expected });
throw new Error(`hydrate sanity failed: ${c.name}`);
}
}
}
function sameLoginState(a: LoginState | null, b: LoginState | null): boolean {
if (a === null || b === null) return a === b;
return JSON.stringify(a) === JSON.stringify(b);
}