HealthLog/src/app/page-client.tsx

"use client";

import { useCallback, useState } from "react";
import { useQueryClient } from "@tanstack/react-query";

import { useDashboardChartReveal } from "@/components/dashboard/chart-reveal";
import { DashboardHeader } from "@/components/dashboard/dashboard-header";
import { EnvironmentChip } from "@/components/dashboard/environment-chip";
import { RecoveryKitBanner } from "@/components/dashboard/recovery-kit-banner";
import {
  QuickEntrySheets,
  type QuickEntryDialog,
} from "@/components/dashboard/quick-entry-sheets";
import {
  buildChartEntries,
  revealChartIds,
  visibleChartTiles,
} from "@/components/dashboard/tiles/chart-tiles";
import { DashboardTiles } from "@/components/dashboard/tiles/dashboard-tiles";
import { buildStripEntries } from "@/components/dashboard/tiles/strip-tiles";
import { useDashboardTileContext } from "@/components/dashboard/tiles/tile-context";
import { useDashboardData } from "@/components/dashboard/tiles/use-dashboard-data";
import { TodayHero } from "@/components/daily/today-hero";
import { TodayHeroSkeleton } from "@/components/daily/today-hero-skeleton";
import { GettingStartedChecklist } from "@/components/onboarding/getting-started-checklist";
import { PullToRefreshIndicator } from "@/components/ui/pull-to-refresh-indicator";
import { QueryErrorCard } from "@/components/ui/query-error-card";
import { useAccountOnceMounted, useAuth } from "@/hooks/use-auth";
import { useMounted } from "@/hooks/use-mounted";
import { usePullToRefresh } from "@/hooks/use-pull-to-refresh";
import { useRecordCapabilities } from "@/hooks/use-record-capabilities";
import type { BatchWindow } from "@/lib/dashboard/batch-chart-types";
import { PRIORITY_ITEM_KINDS } from "@/lib/daily/priority-item";

/**
 * The dashboard: the header, the Today hero, and the tiles and charts the
 * layout switches on. Which tiles exist, what each reads, when each shows and
 * where it sits is the registry under `components/dashboard/tiles/`; this
 * component only composes.
 */
export default function DashboardPageClient({
  batchWindow,
  demoMode = false,
}: {
  /**
   * The batched-series ISO window computed server-side from the PROFILE time
   * zone, present only when the RSC prefetch ran. Adopted verbatim so the
   * `chartSeriesBatch` key matches the key the RSC dehydrated under.
   */
  batchWindow?: BatchWindow;
  /**
   * True on a `DEMO_MODE` instance. The demo is one shared, read-only
   * account a visitor cannot set up, so the setup checklist has nothing to
   * offer there, as the shell already leaves out the tour.
   */
  demoMode?: boolean;
} = {}) {
  const { isAuthenticated } = useAuth();
  const mounted = useMounted();
  // The account payload is withheld until this boundary has mounted, so the
  // hydration render paints exactly what the server streamed. Every
  // account-derived branch (the BMI chart's height gate, the personalised
  // bands, the module gates, the unit labels) would otherwise render one
  // thing on the server and another here, and with the RSC prefetch on that
  // costs the whole streamed dashboard (React #418). See
  // `useAccountOnceMounted`.
  const user = useAccountOnceMounted();
  const queryClient = useQueryClient();
  const { canWriteDomain } = useRecordCapabilities();
  const canAddMeasurement = canWriteDomain("measurements");
  const [quickEntryDialog, setQuickEntryDialog] =
    useState<QuickEntryDialog>(null);

  // Pull to refresh: a PWA resumed from the home screen never fires a focus
  // event, and the dashboard fans out into a dozen independent reads, so
  // refetching every active query is the one tractable "refresh everything
  // visible".
  const refreshDashboard = useCallback(
    () => queryClient.refetchQueries({ type: "active" }),
    [queryClient],
  );
  const pull = usePullToRefresh({ onRefresh: refreshDashboard });

  const dashboard = useDashboardData({
    isAuthenticated,
    mounted,
    batchWindowProp: batchWindow,
  });
  const { digestQuery, layout, primaryLoading } = dashboard;
  const tileContext = useDashboardTileContext({ dashboard, user });

  const renderFilteredHeroAllClear =
    (layout.enabledHeroItemKinds ?? PRIORITY_ITEM_KINDS).length <
    PRIORITY_ITEM_KINDS.length;

  // Every data-backed chart mounts as soon as its gate flips (so the chart
  // reads fan out in parallel), but the cells hold their skeletons until
  // every gated chart reported its data settled, or the reveal timeout fired
  // (see `chart-reveal.tsx`), so the row swaps in one frame.
  const chartTiles = visibleChartTiles(tileContext);
  const { revealed: chartsRevealed, markReady: markChartReady } =
    useDashboardChartReveal(revealChartIds(chartTiles));
  const stripEntries = buildStripEntries(tileContext);
  const chartEntries = buildChartEntries(chartTiles, {
    ...tileContext,
    preloadedSeries: dashboard.preloadedSeries,
    markChartReady,
  });

  return (
    <div
      className="space-y-6"
      // The switch in the layout settings, for the e2e check: the card
      // itself renders nothing on a day without a digest.
      data-today-card={layout.todayCardVisible === false ? "off" : "on"}
    >
      <PullToRefreshIndicator {...pull} />
      <DashboardHeader onQuickEntry={setQuickEntryDialog} />
      <RecoveryKitBanner isAdmin={user?.role === "ADMIN"} />

      {/* Records other people share with you are reached from the account
          switcher in the top bar and the sidebar, not from a card here. The
          dashboard is this account's own day. */}

      {
        // The Today hero above the tile strip: the day's read, the score and
        // freshness face, and the worth-a-look rail. DATA-FIRST, so the SSR
        // pass paints the populated hero (the LCP element). That is
        // hydration-safe ONLY because the digest is server-dehydrated
        // (`page.tsx` prefetch), so `digestQuery.data` is present on both the
        // SSR pass and the first hydration render, and because `["daily", …]`
        // is NOT in the persist allowlist (`PERSIST_ALLOWLIST_HEADS` in
        // `@/lib/pwa/query-persister`), so it never rehydrates from disk. Do
        // not add it there, or render the hero from any client-only source,
        // without revisiting this gate. A failed read is an error card with
        // retry, distinct from the honest empty degrade (the hero returns
        // null). The card can be switched off in the layout settings; only an
        // explicit `false` hides it, its skeleton and its error card.
        layout.todayCardVisible === false ? null : digestQuery.data ? (
          <TodayHero
            digest={digestQuery.data}
            renderFilteredAllClear={renderFilteredHeroAllClear}
            // The server-persisted hero choice rides the same resolved layout
            // as the widget visibility, so SSR and hydration agree.
            primaryContent={layout.hero ?? "score"}
          />
        ) : !mounted || digestQuery.isLoading ? (
          <TodayHeroSkeleton />
        ) : digestQuery.isError ? (
          <QueryErrorCard
            error={digestQuery.error}
            onRetry={() => digestQuery.refetch()}
          />
        ) : null
      }

      {/* A quiet note about the newest stored environment day (high pollen, a
          hot night, very poor air). Nothing unless one applies, and nothing
          before mount (the module map and the overview are client reads).
          Not a layout widget. */}
      {mounted && <EnvironmentChip />}

      {/* Bottom sheet below `md`, centred dialog from `md` up. */}
      <QuickEntrySheets
        open={quickEntryDialog}
        onClose={() => setQuickEntryDialog(null)}
      />

      <DashboardTiles
        stripEntries={stripEntries}
        chartEntries={chartEntries}
        chartsRevealed={chartsRevealed}
        layout={layout}
        primaryLoading={primaryLoading}
        mounted={mounted}
        user={user}
        canAddMeasurement={canAddMeasurement}
        onAddMeasurement={() => setQuickEntryDialog("measurement")}
      />

      {/* The getting-started checklist sits below the tiles and charts: it
          mounts only once the snapshot resolves, and above the strip its late
          arrival pushed every tile down. It gates itself on onboarding state
          and disappears once dismissed or complete. */}
      {demoMode ? null : <GettingStartedChecklist />}
    </div>
  );
}