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familysync/apps/pwa/src/components/CalendarShell.tsx
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TypeScript

/**
* CalendarShell — Schedule-X calendar wired to TanStack Query + hydrateEvents + Zustand range.
*
* Data flow:
* Zustand calendarRange → TanStack Query ['events', start, end] → fetchEvents
* → hydrateEvents (ISO → Temporal) → eventsService.set() → Schedule-X render
*
* Critical constraints:
* - Plugins (eventsService) created once via useState stable initialiser
* - onRangeUpdate fires on navigation; initial fetch uses Zustand default range (A4/Q2)
* - DateRange.start/end are Temporal.ZonedDateTime → converted to 'YYYY-MM-DD' for Zustand
* - calendarId routing: 'shared' | String(ownerUserId) — produced by hydrateEvents, consumed
* by buildCalendarConfig; never the DB calendar-row id
* - Event popover: driven exclusively by Zustand openEventId via onEventClick → standalone
* EventDetailPopover; createEventModalPlugin and customComponents.eventModal are NOT used
* - Threat T-02d-01: all event fields are plain-text JSX children — no raw HTML injection
* - Navigation: Schedule-X's built-in header is the sole navigation bar (Today/‹›/view switcher
* + weekday-name row). The custom ViewToolbar and calendar-controls plugin have been removed.
*
* Layout (FIX 3):
* AppNav has been lifted to App.tsx and is no longer rendered here. CalendarShell fills
* its parent container (a flex:1 area in App.tsx). Auth splashes use position:fixed to
* overlay everything including AppNav.
*
* State branches:
* isLoading (initial) → SkeletonCalendar
* success + 0 occurrences → EmptyState
* isError (after retry:2) → error state with Retry button
* success + events → ScheduleXCalendar
*/
import { useState, useEffect, useMemo, useRef } from 'react';
import { useQuery, useQueryClient } from '@tanstack/react-query';
import { ScheduleXCalendar, useCalendarApp } from '@schedule-x/react';
import {
createViewDay,
createViewWeek,
createViewMonthGrid,
createViewMonthAgenda,
type CalendarType,
} from '@schedule-x/calendar';
import { createEventsServicePlugin } from '@schedule-x/events-service';
import { Plus } from 'lucide-react';
import { fetchMe, fetchEvents } from '../api/client.js';
import { hydrateEvents } from '../lib/hydrateEvents.js';
import { maybeRedirectToLogin, clearLoginRedirect } from '../lib/loginRedirect.js';
import { buildCalendarConfig, SX_FIRST_DAY_OF_WEEK } from '../lib/calendarConfig.js';
import { useCalendarStore } from '../store/calendarStore.js';
import { AuthSplash } from './AuthSplash.js';
import { EventDetailPopover } from './EventDetailPopover.js';
import { EventForm } from './EventForm.js';
import { DeleteConfirmationDialog } from './DeleteConfirmationDialog.js';
import { SyncStateToast } from './SyncStateToast.js';
import { ColorLegend } from './ColorLegend.js';
import { SkeletonCalendar } from './SkeletonCalendar.js';
import { InstallPrompt } from './InstallPrompt.js';
// ── Helpers ────────────────────────────────────────────────────────────────
/**
* IN-02: this does NOT compute the D-05 phone/desktop default — that lives in the
* store's readPersistedView() (calendarStore.ts), which seeds selectedView with the
* breakpoint-aware default. By the time this runs, `persistedView` already carries that
* resolved default. The ONLY job here is the SSR guard: return a stable 'month-grid'
* when `window` is undefined (no breakpoint to read), otherwise pass the already-resolved
* view through unchanged. Do not expect breakpoint logic here.
*/
function resolveDefaultView(persistedView: string): string {
if (typeof window === 'undefined') return 'month-grid';
return persistedView;
}
function isPhone(): boolean {
return typeof window !== 'undefined' && window.matchMedia('(max-width: 767px)').matches;
}
// ── Component ──────────────────────────────────────────────────────────────
export function CalendarShell() {
// Use per-field selectors so CalendarShell does NOT subscribe to openEventId.
// Without selectors, any popover open/close triggers a full re-render here,
// which rebuilds the Schedule-X config and causes a visible calendar flash (Bug B).
const calendarRange = useCalendarStore((s) => s.calendarRange);
const setCalendarRange = useCalendarStore((s) => s.setCalendarRange);
const setOpenEventId = useCalendarStore((s) => s.setOpenEventId);
const selectedView = useCalendarStore((s) => s.selectedView);
const setEventForm = useCalendarStore((s) => s.setEventForm);
const eventFormOpen = useCalendarStore((s) => s.eventFormOpen);
const sessionExpired = useCalendarStore((s) => s.sessionExpired);
const { start, end } = calendarRange;
const queryClient = useQueryClient();
// Ref to ensure the session-expiry redirect timer fires only once per expiry
const sessionExpiredRedirectFired = useRef(false);
// When the one-shot redirect guard is already exhausted (flag set from a prior
// navigation), maybeRedirectToLogin() returns false — arm the dead-end state so
// AuthSplash shows the tap-to-retry recovery instead of spinning forever (D-11).
const [loginRedirectExhausted, setLoginRedirectExhausted] = useState(false);
// Fetch current user to build per-member color config.
// Same query key (['me']) as App.tsx — TanStack Query deduplicates, no double fetch.
const meQuery = useQuery({
queryKey: ['me'],
queryFn: fetchMe,
retry: false,
staleTime: 5 * 60 * 1000,
});
// Fetch windowed occurrences — key includes start/end so navigation refetches.
//
// enabled: meQuery.isSuccess is load-bearing for the OIDC login flow, not just
// an optimization. When unauthenticated, every /api/* request hits the OIDC
// guard, which 302-redirects to Authelia AND sets a fresh state cookie. If this
// query ran concurrently with fetchMe (and retried), each /api/events redirect
// would overwrite the OIDC state cookie mid-login — so the state returned to
// /callback no longer matched the cookie, producing OAUTH_INVALID_RESPONSE
// ("unexpected state parameter") and an Internal Server Error after Authelia.
// Gating on a successful /api/me means only fetchMe (redirect:'manual',
// retry:false) touches a guarded endpoint while unauthenticated, so the single
// top-level /api/login navigation owns the state cookie uncontested.
const eventsQuery = useQuery({
queryKey: ['events', start, end],
queryFn: () => fetchEvents(start, end),
enabled: meQuery.isSuccess,
retry: 2,
staleTime: 5 * 60 * 1000,
});
// Create plugins once (stable across renders)
const eventsService = useState(() => createEventsServicePlugin())[0];
// Build members list from /api/me for ColorLegend (AppNav uses the same data from App.tsx)
const members = useMemo(() => {
if (!meQuery.data?.user) return [];
return [
{
id: String(meQuery.data.user.id),
name: meQuery.data.user.displayName ?? 'Member',
color: meQuery.data.user.color,
},
];
}, [meQuery.data]);
// Build calendars config whenever the authenticated user changes
const calendarsConfig: Record<string, CalendarType> = useMemo(
() => buildCalendarConfig(members).calendars,
[members],
);
const defaultView = resolveDefaultView(selectedView);
// Display events in the VIEWER's local timezone. Schedule-X defaults to 'UTC', which made
// a 17:45-04:00 event render at 21:45 (9:45 PM). Events arrive as zoned ISO strings in their
// own IANA zones (Toronto/Detroit/New_York/Edmonton); Schedule-X converts them to this one
// display zone, so the family sees every event in their own wall-clock time.
// IANATimezone (the config's timezone type) is declared but not exported by @schedule-x/calendar,
// so derive it from useCalendarApp's config parameter rather than importing it.
type SxTimeZone = NonNullable<Parameters<typeof useCalendarApp>[0]['timezone']>;
const displayTimeZone: SxTimeZone = Intl.DateTimeFormat().resolvedOptions().timeZone;
// useCalendarApp — config is stable; plugins passed as second argument
const calendar = useCalendarApp(
{
views: [createViewDay(), createViewWeek(), createViewMonthGrid(), createViewMonthAgenda()],
defaultView,
timezone: displayTimeZone,
firstDayOfWeek: SX_FIRST_DAY_OF_WEEK,
calendars: calendarsConfig,
callbacks: {
onRangeUpdate(range) {
// range.start / range.end are Temporal.ZonedDateTime.
// Set end to the day AFTER range.end (exclusive window end) so that:
// - Day view: start === day N, end === day N+1 → 1-day window (avoids 400 on 0-day span)
// - Week/Month: end includes the last visible day instead of dropping it
setCalendarRange({
start: range.start.toPlainDate().toString(),
end: range.end.toPlainDate().add({ days: 1 }).toString(),
});
},
onEventClick(event) {
if (event.id != null) {
setOpenEventId(String(event.id));
}
},
},
},
[eventsService],
);
// Sync TanStack Query result into Schedule-X eventsService (Pitfall 4 guard)
// hydrateEvents converts ISO strings → Temporal before eventsService.set()
useEffect(() => {
if (!eventsQuery.data) return;
const sxEvents = hydrateEvents(eventsQuery.data.occurrences);
eventsService.set(sxEvents);
}, [eventsQuery.data, eventsService]);
// Auth redirect — one-shot full-page nav to /api/login when /api/me fails.
// If this is the first failure, maybeRedirectToLogin() sets a sessionStorage
// flag and navigates the browser to /api/login (top-level nav, no CORS block).
// The page will unmount as the browser navigates. If the flag is already set
// (already bounced through login once and still failing), returns false — arm
// loginRedirectExhausted so the dead-end "Tap to try again" branch renders
// instead of spinning indefinitely (D-11 dead-end recovery).
useEffect(() => {
if (meQuery.isError) {
const willRedirect = maybeRedirectToLogin();
if (!willRedirect) {
setLoginRedirectExhausted(true);
}
}
}, [meQuery.isError]);
// Clear the one-shot flag on a successful /api/me load so a later session
// expiry can trigger another redirect instead of showing "Sign-in required".
// Also reset the dead-end state in case the component is reused after auth recovery.
useEffect(() => {
if (meQuery.isSuccess) {
clearLoginRedirect();
setLoginRedirectExhausted(false);
}
}, [meQuery.isSuccess]);
// Session-expiry redirect (D-11) — fires when a mid-use 401 is detected by the
// global QueryCache/MutationCache handler and arms the Zustand sessionExpired flag.
// Re-arms the one-shot guard (clearLoginRedirect) so maybeRedirectToLogin fires
// afresh, then schedules the top-level navigation after ~1.5s (UI-SPEC §Surface 2
// "≤2s before redirect, no dismiss button").
useEffect(() => {
if (!sessionExpired) return;
if (sessionExpiredRedirectFired.current) return;
sessionExpiredRedirectFired.current = true;
clearLoginRedirect();
const timer = setTimeout(() => {
maybeRedirectToLogin();
}, 1500);
return () => {
clearTimeout(timer);
};
}, [sessionExpired]);
// ── Render helpers ────────────────────────────────────────────────────────
// Determine which content to show in the calendar area.
// Note: meQuery.isLoading is handled above by an early AuthSplash return — it
// will always be false when we reach this line (meQuery.isSuccess is guaranteed).
const isInitialLoading = eventsQuery.isLoading && !eventsQuery.data;
const isEventsError = eventsQuery.isError;
const phone = isPhone();
// ── Auth splash (D-10) ────────────────────────────────────────────────────
// Gate the calendar render on auth state so no calendar shell, skeleton, or
// "Sign-in required" alert paints before Authelia (D-10 success criterion 5).
//
// Auth splashes use position:fixed (inset:0, z-index:999) to overlay the entire
// viewport including the persistent AppNav in App.tsx (FIX 3).
//
// loading: meQuery is still pending — show the neutral "Signing you in" splash.
// No skeleton, no CalendarContent — nothing app-specific until authed.
// isError: meQuery failed — the maybeRedirectToLogin() useEffect fires immediately
// after this render. Show the "redirecting" splash while the browser navigates.
// If the one-shot guard is exhausted (flag already set), maybeRedirectToLogin
// returns false and this splash stays — the dead-end "Tap to try again" is
// rendered by AuthSplash's dead-end state (wired in Task 3 via sessionExpired).
if (meQuery.isLoading) {
return <AuthSplash state="loading" overlay />;
}
if (meQuery.isError) {
// loginRedirectExhausted: the one-shot guard was already set (prior navigation),
// so maybeRedirectToLogin() returned false — show dead-end tap-to-retry (D-11).
// Otherwise the useEffect above already fired maybeRedirectToLogin() and
// the browser is navigating — show the redirecting splash while it does.
if (loginRedirectExhausted) {
return <AuthSplash state="dead-end" overlay />;
}
return <AuthSplash state="redirecting" overlay />;
}
// ── Session-expiry interstitial (D-11) ─────────────────────────────────────
// When a mid-use query or mutation returns 401, the global QueryCache/MutationCache
// handler sets sessionExpired=true. Show the "Session expired" interstitial while the
// 1.5s timer fires (wired above in the sessionExpired useEffect).
if (sessionExpired) {
return (
<AuthSplash
state="redirecting"
heading="Session expired"
body="Signing you back in…"
overlay
/>
);
}
// ── Calendar content ───────────────────────────────────────────────────────
// The content panel fills its parent container (a flex:1 area set by App.tsx).
//
// This is a plain JSX value, NOT a nested `function CalendarContent()` rendered
// as `<CalendarContent />`. A component defined inside render has a new identity
// every render, so React unmounts+remounts its entire subtree — including
// <ScheduleXCalendar> — on ANY CalendarShell re-render (popup/form close, post-
// write events refetch). That full remount is the "calendar flash" (Bug B). As
// an element value it reconciles in place across re-renders: no remount, no flash.
const calendarContent = (
<div
style={{
flex: 1,
minWidth: 0,
display: 'flex',
flexDirection: 'column',
overflow: 'hidden',
}}
>
{/* Main calendar area */}
<div style={{ flex: 1, minHeight: 0, height: '100%', position: 'relative' }}>
{isInitialLoading ? (
// Loading state: shimmer skeleton
<div style={{ padding: 'var(--space-4)', flex: 1 }}>
<SkeletonCalendar variant={phone ? 'agenda' : 'month'} />
</div>
) : isEventsError ? (
// Error state: replace grid with heading + body + Retry button
<div
style={{
display: 'flex',
flexDirection: 'column',
alignItems: 'center',
justifyContent: 'center',
padding: 'var(--space-12)',
gap: 'var(--space-4)',
fontFamily: 'var(--font-family-base)',
textAlign: 'center',
flex: 1,
}}
>
<h2
style={{
margin: 0,
fontSize: 'var(--text-heading-size)',
fontWeight: 'var(--text-heading-weight)',
lineHeight: 'var(--text-heading-line-height)',
color: 'var(--color-text-primary)',
}}
>
Couldn&apos;t load events
</h2>
<p
style={{
margin: 0,
fontSize: 'var(--text-body-size)',
color: 'var(--color-text-secondary)',
}}
>
Check your connection and try again.
</p>
<button
onClick={() => {
void queryClient.refetchQueries({ queryKey: ['events'] });
}}
style={{
background: 'var(--color-surface-dim)',
border: '1px solid var(--color-border)',
borderRadius: 'var(--space-1)',
cursor: 'pointer',
minHeight: '44px',
padding: '0 var(--space-4)',
fontSize: 'var(--text-label-size)',
fontWeight: 600,
color: 'var(--color-text-primary)',
fontFamily: 'var(--font-family-base)',
}}
>
Retry
</button>
</div>
) : (
// Normal: Schedule-X calendar (primary focal point).
// ALWAYS render the calendar even when the window has no events — its built-in
// header carries the navigation, so swapping in an empty-state would strand the
// user with no way to navigate away from an empty day/week. An empty grid is clear.
<ScheduleXCalendar calendarApp={calendar} />
)}
</div>
{/* Phone: show ColorLegend below toolbar, collapsed */}
{phone && !meQuery.isLoading && members.length > 0 && (
<div
style={{
padding: 'var(--space-2) var(--space-4)',
borderTop: '1px solid var(--color-border)',
background: 'var(--color-surface)',
}}
>
<ColorLegend members={members} />
</div>
)}
</div>
);
// ── Layout ─────────────────────────────────────────────────────────────────
// CalendarShell fills its container (App.tsx provides the outer layout with AppNav).
// Both phone and desktop use the same flex column structure here since AppNav is
// now outside this component.
return (
<div
style={{
flex: 1,
display: 'flex',
flexDirection: 'column',
background: 'var(--color-surface)',
color: 'var(--color-text-primary)',
fontFamily: 'var(--font-family-base)',
overflow: 'hidden',
height: '100%',
}}
>
<InstallPrompt />
{/* New Event toolbar button — desktop only (phone uses FAB below) */}
{!phone && (
<div
style={{
display: 'flex',
justifyContent: 'flex-end',
padding: 'var(--space-2) var(--space-4)',
borderBottom: '1px solid var(--color-border-subtle)',
background: 'var(--color-surface)',
flexShrink: 0,
}}
>
<button
onClick={() => setEventForm(true, 'create')}
style={{
background: 'var(--color-text-primary)',
color: '#ffffff',
border: 'none',
cursor: 'pointer',
minHeight: '44px',
padding: '0 var(--space-4)',
borderRadius: 'var(--space-1)',
fontSize: 'var(--text-label-size)',
fontWeight: 600,
display: 'flex',
alignItems: 'center',
gap: 'var(--space-1)',
fontFamily: 'var(--font-family-base)',
}}
>
<Plus size={16} aria-hidden="true" />
{/* Plain text — XSS guard */}
New Event
</button>
</div>
)}
{calendarContent}
{/* Phone: New Event FAB — bottom-right floating action button (UI-SPEC §Interaction Contract) */}
{phone && (
<button
aria-label="New Event"
onClick={() => setEventForm(true, 'create')}
style={{
position: 'fixed',
bottom: 'var(--space-6)',
right: 'var(--space-6)',
width: '56px',
height: '56px',
minWidth: '56px',
minHeight: '56px',
borderRadius: '50%',
background: 'var(--color-text-primary)',
color: '#ffffff',
border: 'none',
cursor: 'pointer',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
boxShadow: '0 4px 16px rgba(0,0,0,0.18)',
zIndex: 100,
fontFamily: 'var(--font-family-base)',
}}
>
<Plus size={24} aria-hidden="true" />
</button>
)}
{/* EventDetailPopover — standalone mode driven by Zustand openEventId */}
<EventDetailPopover />
{/* EventForm modal — conditionally rendered while eventFormOpen */}
{eventFormOpen && <EventForm />}
{/* DeleteConfirmationDialog — always mounted; renders nothing when deleteDialogOpen is false */}
<DeleteConfirmationDialog />
{/* SyncStateToast — always mounted; renders nothing when lastSyncedUid is null */}
<SyncStateToast />
</div>
);
}