Datenexport

'use client';

import { useEffect, useId, useLayoutEffect, useMemo, useRef, useState } from 'react';
import { cn, type Locale, prefersReducedMotion, round, useLocale, useTexts } from '@/lib/kit';
import { Button } from '@/components/ui/button';
import { Icon, type IconName } from '@/components/ui/icon';
import { Switch } from '@/components/ui/switch';
import { Sidebar, type SidebarProps } from '@/components/ui/sidebar';
import { useScrollFade } from '@/components/ui/motion';

export type DataExportVariant = 'quick-export' | 'columns' | 'scheduled' | 'history' | 'account-archive';
export type ExportFormat = 'csv' | 'xlsx' | 'json' | 'pdf';

export interface ExportColumn {
  id: string;
  label: string;
  /** Shown in the first rows of the preview */
  samples?: string[];
  on?: boolean;
}

export interface ScheduledExport {
  id: string;
  name: string;
  format: ExportFormat;
  /** e.g. Every Monday at 07:00 */
  when: string;
  /** Where the file goes, e.g. an email address or a folder */
  to: string;
  toKind: 'email' | 'folder';
  enabled: boolean;
  /** ISO date and time */
  next?: string;
}

export interface ExportFile {
  id: string;
  name: string;
  format: ExportFormat;
  rows: number;
  /** Bytes */
  size: number;
  /** ISO date and time */
  created: string;
  /** ISO date and time when the link stops working */
  expires?: string;
  by?: string;
  status: 'ready' | 'running' | 'expired' | 'failed';
}

export interface ArchivePart {
  id: string;
  label: string;
  description?: string;
  /** Rough size in bytes */
  size: number;
  icon?: IconName;
}

export interface DataExportProps {
  variant?: DataExportVariant;
  /** The app frame. Leave it out (or null) for a standalone screen. */
  sidebar?: Omit<SidebarProps, 'children'> | null;
  title: string;
  subtitle?: string;
  /** What gets exported, e.g. contacts */
  entity?: string;
  /** quick-export: rows in all data, in the current filter and selected */
  counts?: { all: number; filtered?: number; selected?: number };
  /** columns */
  columns?: ExportColumn[];
  /** scheduled */
  schedules?: ScheduledExport[];
  /** history */
  files?: ExportFile[];
  /** account-archive */
  parts?: ArchivePart[];
  /** account-archive: where the link goes */
  email?: string;
  /** ISO date and time that counts as now */
  now?: string;
  /** Called on export, save and download. Without it the block simulates the work. */
  onAction?: (action: string, data: Record<string, unknown>) => void | Promise<void>;
  labels?: Partial<(typeof TEXTS)['en']>;
  className?: string;
}

const TEXTS = {
  en: {
    format: 'Format',
    csv: 'CSV',
    xlsx: 'Excel',
    json: 'JSON',
    pdf: 'PDF',
    csvText: 'For any spreadsheet',
    xlsxText: 'With column widths',
    jsonText: 'For developers',
    pdfText: 'To print or send',
    which: 'Which rows',
    all: 'All {entity}',
    filtered: 'Current filter',
    selected: 'Selected only',
    rowsN: '{n} rows',
    options: 'Options',
    headers: 'Include column names',
    dates: 'Dates as YYYY-MM-DD',
    export: 'Export {n} rows',
    exporting: 'Preparing your file…',
    ready: 'Your file is ready',
    download: 'Download',
    another: 'Export again',
    emailToo: 'We also sent the link to your email.',
    columns: 'Columns',
    columnsText: 'Pick the columns and their order. The preview shows the first rows.',
    picked: '{n} of {total} columns',
    pickAll: 'All',
    pickNone: 'None',
    moveUp: 'Move {name} up',
    moveDown: 'Move {name} down',
    preview: 'Preview',
    noColumns: 'Pick at least one column.',
    saveSet: 'Save as preset',
    saved: 'Preset saved',
    scheduled: 'Scheduled exports',
    scheduledText: 'Fresh files arrive on their own, no one has to remember.',
    next: 'Next {when}',
    paused: 'Paused',
    toggle: 'Run {name}',
    newSchedule: 'New scheduled export',
    name: 'Name',
    every: 'Repeat',
    daily: 'Every day',
    weekly: 'Every Monday',
    monthly: 'On the 1st',
    at: 'At',
    sendTo: 'Send to',
    toEmail: 'Email',
    toFolder: 'Shared folder',
    address: 'Address',
    folder: 'Folder path',
    add: 'Add schedule',
    adding: 'Adding…',
    added: '{name} added.',
    nameError: 'Give it a name.',
    toError: 'Fill in where the file goes.',
    history: 'Export history',
    historyText: 'Links work for 7 days, then the files are deleted.',
    statusReady: 'Ready',
    statusRunning: 'Running',
    statusExpired: 'Expired',
    statusFailed: 'Failed',
    expiresIn: 'Link works {when}',
    rerun: 'Export again',
    retry: 'Try again',
    by: 'by {name}',
    allStatus: 'All',
    archive: 'Download your data',
    archiveText: 'A ZIP with everything you pick. We email you a link as soon as it is ready, usually within an hour.',
    whatIn: 'What goes in',
    total: 'About {size}',
    confirm: 'Confirm with your password',
    password: 'Password',
    passwordError: 'Enter your password to continue.',
    request: 'Request archive',
    requesting: 'Requesting…',
    steps: 'What happens next',
    step1: 'We collect your data',
    step2: 'We pack it into a ZIP',
    step3: 'You get an email with a link',
    requested: 'We are on it',
    requestedText: 'The link goes to {email}. It works for 7 days and needs your password again.',
    eta: 'Ready in about {n} minutes',
  },
  de: {
    format: 'Format',
    csv: 'CSV',
    xlsx: 'Excel',
    json: 'JSON',
    pdf: 'PDF',
    csvText: 'Für jede Tabelle',
    xlsxText: 'Mit Spaltenbreiten',
    jsonText: 'Für Entwickler',
    pdfText: 'Zum Drucken und Senden',
    which: 'Welche Zeilen',
    all: 'Alle {entity}',
    filtered: 'Aktueller Filter',
    selected: 'Nur ausgewählte',
    rowsN: '{n} Zeilen',
    options: 'Optionen',
    headers: 'Spaltennamen mitnehmen',
    dates: 'Datum als JJJJ-MM-TT',
    export: '{n} Zeilen exportieren',
    exporting: 'Deine Datei wird vorbereitet…',
    ready: 'Deine Datei ist fertig',
    download: 'Herunterladen',
    another: 'Erneut exportieren',
    emailToo: 'Den Link haben wir dir auch per E-Mail geschickt.',
    columns: 'Spalten',
    columnsText: 'Wähle Spalten und Reihenfolge. Die Vorschau zeigt die ersten Zeilen.',
    picked: '{n} von {total} Spalten',
    pickAll: 'Alle',
    pickNone: 'Keine',
    moveUp: '{name} nach oben',
    moveDown: '{name} nach unten',
    preview: 'Vorschau',
    noColumns: 'Wähle mindestens eine Spalte.',
    saveSet: 'Als Vorlage speichern',
    saved: 'Vorlage gespeichert',
    scheduled: 'Geplante Exporte',
    scheduledText: 'Frische Dateien kommen von selbst, niemand muss daran denken.',
    next: 'Nächster {when}',
    paused: 'Pausiert',
    toggle: '{name} ausführen',
    newSchedule: 'Neuer geplanter Export',
    name: 'Name',
    every: 'Wiederholen',
    daily: 'Jeden Tag',
    weekly: 'Jeden Montag',
    monthly: 'Am 1. des Monats',
    at: 'Um',
    sendTo: 'Senden an',
    toEmail: 'E-Mail',
    toFolder: 'Geteilter Ordner',
    address: 'Adresse',
    folder: 'Ordnerpfad',
    add: 'Export planen',
    adding: 'Wird geplant…',
    added: '{name} hinzugefügt.',
    nameError: 'Gib ihm einen Namen.',
    toError: 'Trag ein, wohin die Datei geht.',
    history: 'Exportverlauf',
    historyText: 'Links funktionieren 7 Tage, danach werden die Dateien gelöscht.',
    statusReady: 'Bereit',
    statusRunning: 'Läuft',
    statusExpired: 'Abgelaufen',
    statusFailed: 'Fehlgeschlagen',
    expiresIn: 'Link gilt {when}',
    rerun: 'Erneut exportieren',
    retry: 'Erneut versuchen',
    by: 'von {name}',
    allStatus: 'Alle',
    archive: 'Deine Daten herunterladen',
    archiveText: 'Ein ZIP mit allem, was du wählst. Wir schicken dir einen Link, sobald es fertig ist, meist innerhalb einer Stunde.',
    whatIn: 'Was hinein kommt',
    total: 'Etwa {size}',
    confirm: 'Mit deinem Passwort bestätigen',
    password: 'Passwort',
    passwordError: 'Gib dein Passwort ein, um weiterzumachen.',
    request: 'Archiv anfordern',
    requesting: 'Wird angefordert…',
    steps: 'So geht es weiter',
    step1: 'Wir sammeln deine Daten',
    step2: 'Wir packen sie in ein ZIP',
    step3: 'Du bekommst eine E-Mail mit Link',
    requested: 'Wir sind dran',
    requestedText: 'Der Link geht an {email}. Er gilt 7 Tage und fragt noch einmal nach deinem Passwort.',
    eta: 'Fertig in etwa {n} Minuten',
  },
};

type Texts = (typeof TEXTS)['en'];

const fill = (s: string, v: Record<string, string | number>) => s.replace(/\{(\w+)\}/g, (_, k) => String(v[k] ?? ''));

/* ------------------------------------------------------------------ */
/* Motion of the app screens                                           */
/* ------------------------------------------------------------------ */
/*
 * The same small set in every app block (auth, dashboard, files, inbox …),
 * kept in the block so it ships on its own:
 *   useEnter   entrance that waits until its area scrolls in. The area gets
 *              data-kitm-scope and data-kitm={state}, children take kitm-wipe
 *              (charts draw from the left), kitm-grow-x, kitm-grow-y (bars),
 *              kitm-up and kitm-pop, with --kitm-d as delay.
 *   useGlide   a marker inside the active item ([data-glide]) glides over
 *              from where the previous one stood: tabs, segments, steps.
 *   kitm-in, kitm-fly, kitm-tick for things that appear after an action.
 * The server renders the end state, without JavaScript nothing waits longer
 * than 2.5 s, with reduced motion nothing moves. Only transform, opacity and
 * clip-path change, so no layout shifts.
 */
const useIso = typeof window === 'undefined' ? useEffect : useLayoutEffect;
const KITM_EASE = 'cubic-bezier(0.2, 0.7, 0.2, 1)';
const KITM_FX: [string, string, number][] = [
  ['wipe', 'clip-path:inset(0 100% 0 0)', 1100],
  ['grow-x', 'transform:scaleX(0)', 900],
  ['grow-y', 'transform:scaleY(0)', 800],
  ['up', 'opacity:0;transform:translateY(10px)', 600],
  ['pop', 'opacity:0;transform:scale(.92)', 450],
];
const KITM_CSS =
  KITM_FX.map(([k, v]) => `@keyframes kitm-${k}{from{${v}}}@keyframes kitm-${k}-h{from{${v}}}`).join('') +
  '@keyframes kitm-fly{from{opacity:0;transform:translateX(24px)}}@keyframes kitm-sheen{to{transform:translateX(130%)}}.kitm-sheen{transform:translateX(-130%)}@keyframes kitm-blink{50%{opacity:0}}@keyframes kitm-shake{20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}@keyframes kitm-ring{20%{transform:rotate(14deg)}40%{transform:rotate(-11deg)}60%{transform:rotate(7deg)}80%{transform:rotate(-3deg)}}@keyframes kitm-next{from{opacity:0;transform:translateX(18px)}}@keyframes kitm-prev{from{opacity:0;transform:translateX(-18px)}}.kitm-caret{display:inline-block;width:.45em;height:1.1em;margin-left:.15em;vertical-align:-.2em;border-radius:2px;background:color-mix(in oklab,var(--primary) 80%,var(--foreground))}@keyframes kitm-flash{from{background-color:color-mix(in oklab,var(--primary) 14%,transparent)}}' +
  '.kitm-grow-x{transform-origin:left}.kitm-grow-y{transform-origin:bottom}' +
  '@media (prefers-reduced-motion:no-preference){' +
  KITM_FX.map(([k, , d]) => `[data-kitm=play] .kitm-${k}{animation:kitm-${k} var(--kitm-t,${d}ms) var(--ease-kit) var(--kitm-d,0ms) both}[data-kitm=wait] .kitm-${k}{animation:kitm-${k}-h 0s 1s both paused}`).join('') +
  '[data-kitm=play] .kitm-sheen{animation:kitm-sheen 1.6s var(--ease-kit) var(--kitm-d,400ms) both}.kitm-in{animation:kitm-up var(--kitm-t,.5s) var(--ease-kit) var(--kitm-d,0ms) both}.kitm-fly{animation:kitm-fly .55s var(--ease-kit) var(--kitm-d,0ms) both}.kitm-tick{animation:kitm-wipe .36s var(--ease-kit) both}.kitm-caret{animation:kitm-blink 1.05s steps(1) infinite}.kitm-shake{animation:kitm-shake .4s ease-in-out}.kitm-ring{transform-origin:50% 8%;animation:kitm-ring .9s var(--ease-kit) both}.kitm-next{animation:kitm-next .45s var(--ease-kit) both}.kitm-prev{animation:kitm-prev .45s var(--ease-kit) both}.kitm-flash{animation:kitm-flash 1.6s ease-out both}' +
  '}@media (scripting:enabled) and (prefers-reduced-motion:no-preference){' +
  KITM_FX.map(([k]) => `[data-kitm-scope]:not([data-kitm]) .kitm-${k}{animation:kitm-${k}-h 0s 2.5s both}`).join('') +
  '}';

function KitmStyle() {
  // React hoists it once into the head, however many app blocks render
  return (
    <style href="kitm" precedence="default">
      {KITM_CSS}
    </style>
  );
}

/** Entrance state of an area: undefined on the server, then wait (below the fold) or play */
function useEnter<T extends HTMLElement>() {
  const ref = useRef<T>(null);
  const [state, setState] = useState<'wait' | 'play' | undefined>(undefined);
  useEffect(() => {
    const el = ref.current;
    if (!el || prefersReducedMotion() || el.getBoundingClientRect().top < window.innerHeight * 0.92) return setState('play');
    setState('wait');
    const io = new IntersectionObserver(
      ([e]) => {
        if (!e?.isIntersecting) return;
        setState('play');
        io.disconnect();
      },
      { rootMargin: '0px 0px -8% 0px' },
    );
    io.observe(el);
    return () => io.disconnect();
  }, []);
  return [ref, { 'data-kitm-scope': '', 'data-kitm': state }] as const;
}

type Box = { x: number; y: number; w: number; h: number };
const boxOf = (el: Element, root: HTMLElement): Box => {
  const r = el.getBoundingClientRect();
  const b = root.getBoundingClientRect();
  return { x: r.left - b.left + root.scrollLeft, y: r.top - b.top + root.scrollTop, w: r.width, h: r.height };
};

/**
 * The marker ([data-glide]) is rendered inside the active item, so the server
 * and a page without JavaScript show it in place. After a change it starts
 * where the old one stood and glides into the new item.
 */
function useGlide<T extends HTMLElement>(key: unknown) {
  const ref = useRef<T>(null);
  const before = useRef<Box | null>(null);
  // Read during render, while the DOM still shows the old marker
  if (typeof window !== 'undefined' && ref.current) {
    const m = ref.current.querySelector('[data-glide]');
    before.current = m ? boxOf(m, ref.current) : null;
  }
  useIso(() => {
    const root = ref.current;
    const m = root?.querySelector<HTMLElement>('[data-glide]');
    const a = before.current;
    if (!root || !m || !a || prefersReducedMotion()) return;
    const b = boxOf(m, root);
    if (!b.w || !b.h || (Math.abs(a.x - b.x) < 1 && Math.abs(a.y - b.y) < 1 && Math.abs(a.w - b.w) < 1)) return;
    m.animate([{ transformOrigin: '0 0', transform: `translate(${a.x - b.x}px, ${a.y - b.y}px) scale(${a.w / b.w}, ${a.h / b.h})` }, { transformOrigin: '0 0', transform: 'none' }], { duration: 420, easing: KITM_EASE });
  }, [key]);
  return ref;
}

/* ------------------------------------------------------------------ */
/* Parts                                                               */
/* ------------------------------------------------------------------ */

type P = Omit<DataExportProps, 'variant' | 'sidebar' | 'labels' | 'className'> & { t: Texts; locale: Locale; entity: string; now: string };

const wait = (ms: number) => new Promise((r) => setTimeout(r, ms));
async function run(onAction: DataExportProps['onAction'], action: string, data: Record<string, unknown>, ms = 700) {
  if (onAction) await onAction(action, data);
  else await wait(prefersReducedMotion() ? 0 : ms);
}

const MIN = 60000;
const toMin = (iso: string) => Math.round(Date.parse(iso + (iso.length <= 10 ? 'T00:00:00Z' : iso.endsWith('Z') ? '' : 'Z')) / MIN);
const num = (l: Locale, n: number) => new Intl.NumberFormat(l === 'de' ? 'de-DE' : 'en-US').format(n);
function bytes(l: Locale, n: number) {
  const units = ['B', 'KB', 'MB', 'GB'];
  let i = 0;
  let v = n;
  while (v >= 1000 && i < units.length - 1) {
    v /= 1000;
    i++;
  }
  return `${new Intl.NumberFormat(l === 'de' ? 'de-DE' : 'en-US', { maximumFractionDigits: v < 10 && i ? 1 : 0 }).format(v)} ${units[i]}`;
}
function rel(l: Locale, iso: string, now: string) {
  const rtf = new Intl.RelativeTimeFormat(l === 'de' ? 'de-DE' : 'en-US', { numeric: 'auto' });
  const d = toMin(iso) - toMin(now);
  const a = Math.abs(d);
  if (a < 60) return rtf.format(Math.round(d), 'minute');
  if (a < 1440) return rtf.format(Math.round(d / 60), 'hour');
  return rtf.format(Math.round(d / 1440), 'day');
}

/** Next run after now for a new schedule, as YYYY-MM-DDTHH:mm, computed in UTC so server and browser agree. */
function nextRun(every: 'daily' | 'weekly' | 'monthly', time: string, now: string) {
  const [h, m] = time.split(':').map(Number);
  const base = new Date(`${now.slice(0, 16)}:00Z`);
  const d = new Date(Date.UTC(base.getUTCFullYear(), base.getUTCMonth(), base.getUTCDate(), h || 0, m || 0));
  if (every === 'monthly') {
    d.setUTCDate(1);
    if (d <= base) d.setUTCMonth(d.getUTCMonth() + 1);
  } else if (every === 'weekly') {
    d.setUTCDate(d.getUTCDate() + ((8 - d.getUTCDay()) % 7));
    if (d <= base) d.setUTCDate(d.getUTCDate() + 7);
  } else if (d <= base) d.setUTCDate(d.getUTCDate() + 1);
  return d.toISOString().slice(0, 16);
}

const FORMAT_ICON: Record<ExportFormat, IconName> = { csv: 'table', xlsx: 'layout', json: 'file-code', pdf: 'file' };
const control = 'h-11 w-full min-w-0 rounded-lg border border-input bg-background px-3 text-base text-foreground shadow-[var(--shadow-sm)] outline-none transition-[border-color,box-shadow] duration-300 placeholder:text-subtle-foreground focus:border-[color-mix(in_oklab,var(--primary)_60%,var(--border-strong))] focus:shadow-[0_0_0_3px_color-mix(in_oklab,var(--primary)_16%,transparent)] sm:h-10 sm:text-[14px]';

function Header({ title, subtitle, children }: { title: string; subtitle?: React.ReactNode; children?: React.ReactNode }) {
  return (
    <div className="flex flex-col gap-4 sm:flex-row sm:items-end sm:justify-between">
      <div className="min-w-0">
        {subtitle && <p className="text-[13px] text-muted-foreground">{subtitle}</p>}
        <h1 className="mt-0.5 text-balance text-[clamp(1.5rem,1.2rem+1vw,1.875rem)] font-semibold tracking-[-0.035em] text-foreground">{title}</h1>
      </div>
      {children && <div className="flex flex-wrap items-center gap-2">{children}</div>}
    </div>
  );
}

function Main({ children, className }: { children: React.ReactNode; className?: string }) {
  return <main className={cn('mx-auto w-full max-w-[80rem] flex-1 p-4 sm:p-6 lg:p-8', className)}>{children}</main>;
}

function Card({ title, description, action, children, className, bodyClassName }: { title?: React.ReactNode; description?: React.ReactNode; action?: React.ReactNode; children: React.ReactNode; className?: string; bodyClassName?: string }) {
  return (
    <section className={cn('flex min-w-0 flex-col rounded-xl border border-border bg-card shadow-[var(--highlight),var(--shadow-sm)]', className)}>
      {(title || action) && (
        <div className="flex shrink-0 flex-wrap items-center justify-between gap-3 border-b border-border px-4 py-3.5 sm:px-5">
          <div className="min-w-0">
            {title && <h2 className="text-[14px] font-semibold tracking-[-0.01em] text-foreground">{title}</h2>}
            {description && <p className="mt-0.5 text-pretty text-[13px] text-muted-foreground">{description}</p>}
          </div>
          {action}
        </div>
      )}
      <div className={cn('flex-1 p-4 sm:p-5', bodyClassName)}>{children}</div>
    </section>
  );
}

function Segmented<T extends string>({ options, value, onChange, label, className }: { options: { value: T; label: React.ReactNode }[]; value: T; onChange: (v: T) => void; label: string; className?: string }) {
  const ref = useGlide<HTMLDivElement>(value);
  const onKey = (e: React.KeyboardEvent, i: number) => {
    const dir = e.key === 'ArrowRight' || e.key === 'ArrowDown' ? 1 : e.key === 'ArrowLeft' || e.key === 'ArrowUp' ? -1 : 0;
    if (!dir) return;
    e.preventDefault();
    const next = (i + dir + options.length) % options.length;
    onChange(options[next].value);
    ref.current?.querySelectorAll<HTMLButtonElement>('[role=radio]')[next]?.focus();
  };
  return (
    <div ref={ref} role="radiogroup" aria-label={label} className={cn('relative inline-flex shrink-0 rounded-lg bg-muted p-1', className)}>
      {options.map((o, i) => (
        <button
          key={o.value}
          type="button"
          role="radio"
          aria-checked={value === o.value}
          tabIndex={value === o.value ? 0 : -1}
          onClick={() => onChange(o.value)}
          onKeyDown={(e) => onKey(e, i)}
          className={cn(
            'relative inline-flex h-11 min-w-11 sm:h-10 sm:min-w-0 flex-1 shrink-0 items-center justify-center gap-1.5 whitespace-nowrap rounded-md px-3 text-[13px] font-medium outline-none transition-colors duration-200 focus-visible:ring-2 focus-visible:ring-[color-mix(in_oklab,var(--primary)_50%,transparent)] sm:h-8',
            value === o.value ? 'text-foreground' : 'text-muted-foreground hover:text-foreground',
          )}
        >
          {value === o.value && <span data-glide aria-hidden className="absolute inset-0 rounded-md bg-background shadow-[var(--shadow-sm)] ring-1 ring-border" />}
          <span className="relative inline-flex items-center gap-1.5">{o.label}</span>
        </button>
      ))}
    </div>
  );
}

function Live({ text }: { text: string }) {
  return (
    <p role="status" aria-live="polite" className="sr-only">
      {text}
    </p>
  );
}

/** A drawn file with its type on the fold */
function FileArt({ format, className }: { format: ExportFormat; className?: string }) {
  const tone = format === 'csv' || format === 'xlsx' ? 'bg-success' : format === 'json' ? 'bg-primary' : 'bg-destructive';
  return (
    <span aria-hidden className={cn('relative grid h-11 w-9 shrink-0 place-items-end rounded-md border border-border bg-card shadow-[var(--shadow-sm)]', className)}>
      <span className="absolute end-0 top-0 size-2.5 rounded-bl-[4px] border-b border-s border-border bg-surface-2" />
      <span className={cn('mb-1.5 me-auto ms-1 rounded-[3px] px-1 text-[8.5px] font-bold uppercase leading-[14px] text-white', tone)}>{format}</span>
    </span>
  );
}

/** A radio card in a grid, the picked one lit */
function Tiles<T extends string>({ label, value, onChange, items, className }: { label: string; value: T; onChange: (v: T) => void; items: { value: T; title: string; text: string; icon?: IconName; art?: React.ReactNode }[]; className?: string }) {
  const id = useId();
  return (
    <fieldset className={className}>
      <legend className="mb-2 text-[13px] font-medium text-foreground">{label}</legend>
      <div className="grid grid-cols-2 gap-2 sm:grid-cols-4">
        {items.map((x) => {
          const on = x.value === value;
          return (
            <label key={x.value} className={cn('relative flex cursor-pointer flex-col gap-2 rounded-xl border p-3 transition-[border-color,background-color,box-shadow] duration-200 has-[:focus-visible]:outline has-[:focus-visible]:outline-2 has-[:focus-visible]:outline-offset-2 has-[:focus-visible]:outline-[var(--ring)]', on ? 'border-[color-mix(in_oklab,var(--primary)_60%,var(--border))] bg-[color-mix(in_oklab,var(--primary)_6%,var(--card))] shadow-[0_0_0_3px_color-mix(in_oklab,var(--primary)_12%,transparent)]' : 'border-border hover:border-border-strong')}>
              <input type="radio" name={id} checked={on} onChange={() => onChange(x.value)} className="peer sr-only" />
              <span className="flex items-start justify-between">
                {x.art ?? (x.icon && <Icon name={x.icon} size={18} className="text-muted-foreground" />)}
                <span aria-hidden className={cn('grid size-[18px] place-items-center rounded-full border transition-colors', on ? 'border-primary bg-primary' : 'border-border-strong')}>
                  <span className={cn('size-[7px] rounded-full bg-primary-foreground transition-transform duration-300', on ? 'scale-100' : 'scale-0')} />
                </span>
              </span>
              <span>
                <span className="block text-[14px] font-semibold text-foreground">{x.title}</span>
                <span className="block text-[12px] leading-snug text-muted-foreground">{x.text}</span>
              </span>
            </label>
          );
        })}
      </div>
    </fieldset>
  );
}

/* ------------------------------------------------------------------ */
/* quick-export                                                        */
/* ------------------------------------------------------------------ */

function QuickExport({ t, title, subtitle, entity, counts = { all: 0 }, locale, onAction }: P) {
  const id = useId();
  const [format, setFormat] = useState<ExportFormat>('csv');
  const [scope, setScope] = useState<'all' | 'filtered' | 'selected'>(counts.filtered !== undefined ? 'filtered' : 'all');
  const [headers, setHeaders] = useState(true);
  const [iso, setIso] = useState(false);
  const [state, setState] = useState<'idle' | 'busy' | 'done'>('idle');
  const [progress, setProgress] = useState(0);
  const [area, enter] = useEnter<HTMLDivElement>();
  const n = scope === 'all' ? counts.all : scope === 'filtered' ? counts.filtered ?? 0 : counts.selected ?? 0;
  const size = Math.round(n * (format === 'pdf' ? 420 : format === 'xlsx' ? 160 : format === 'json' ? 380 : 210));
  const file = `${entity.toLowerCase().replace(/\s+/g, '-')}-2026-10-19.${format}`;
  const go = async () => {
    setState('busy');
    setProgress(0);
    const steps = prefersReducedMotion() ? 1 : 16;
    for (let i = 1; i <= steps; i++) {
      await wait(70);
      setProgress(i / steps);
    }
    await run(onAction, 'export', { format, scope, headers, iso }, 0);
    setState('done');
  };
  const scopes: { v: typeof scope; label: string; n?: number }[] = [
    { v: 'all', label: fill(t.all, { entity }), n: counts.all },
    ...(counts.filtered !== undefined ? [{ v: 'filtered' as const, label: t.filtered, n: counts.filtered }] : []),
    ...(counts.selected !== undefined ? [{ v: 'selected' as const, label: t.selected, n: counts.selected }] : []),
  ];
  return (
    <Main>
      <Header title={title} subtitle={subtitle} />
      <div ref={area} {...enter} className="mt-6 grid grid-cols-[minmax(0,1fr)] gap-6 lg:grid-cols-[minmax(0,1fr)_21rem] lg:items-start">
        <section className="kitm-up min-w-0 rounded-xl border border-border bg-card p-4 shadow-[var(--highlight),var(--shadow-sm)] sm:p-6">
          <Tiles
            label={t.format}
            value={format}
            onChange={(v) => {
              setFormat(v);
              setState('idle');
            }}
            items={(['csv', 'xlsx', 'json', 'pdf'] as ExportFormat[]).map((f) => ({ value: f, title: t[f], text: t[`${f}Text` as 'csvText'], art: <FileArt format={f} /> }))}
          />
          <fieldset className="mt-6">
            <legend className="mb-2 text-[13px] font-medium text-foreground">{t.which}</legend>
            <div className="grid gap-2">
              {scopes.map((s) => (
                <label key={s.v} className={cn('flex min-h-12 cursor-pointer items-center gap-3 rounded-lg border px-3.5 transition-colors', scope === s.v ? 'border-[color-mix(in_oklab,var(--primary)_60%,var(--border))] bg-[color-mix(in_oklab,var(--primary)_5%,var(--card))]' : 'border-border hover:border-border-strong')}>
                  <input
                    type="radio"
                    name={`${id}-scope`}
                    checked={scope === s.v}
                    onChange={() => {
                      setScope(s.v);
                      setState('idle');
                    }}
                    className="size-4 accent-[var(--primary)]"
                  />
                  <span className="flex-1 text-[14px] text-foreground">{s.label}</span>
                  <span className="text-[13px] tabular-nums text-muted-foreground">{fill(t.rowsN, { n: num(locale, s.n ?? 0) })}</span>
                </label>
              ))}
            </div>
          </fieldset>
          <div className="mt-6 grid gap-1 border-t border-border pt-4">
            <p className="mb-1 text-[13px] font-medium text-foreground">{t.options}</p>
            <Switch checked={headers} onCheckedChange={setHeaders} label={t.headers} className="py-1.5" />
            <Switch checked={iso} onCheckedChange={setIso} label={t.dates} className="py-1.5" />
          </div>
        </section>
        {/* The file that comes out */}
        <aside className="kitm-up [--kitm-d:120ms] rounded-xl border border-border bg-card p-5 shadow-[var(--highlight),var(--shadow-sm)] lg:sticky lg:top-6">
          <div className="flex items-center gap-3.5">
            <FileArt key={format} format={format} className="kitm-pop h-14 w-11" />
            <div className="min-w-0">
              <p className="truncate text-[14px] font-semibold text-foreground">{file}</p>
              <p className="text-[12.5px] tabular-nums text-muted-foreground">
                {fill(t.rowsN, { n: num(locale, n) })} · ~{bytes(locale, size)}
              </p>
            </div>
          </div>
          <div className="mt-5" role="status" aria-live="polite">
            {state === 'busy' && (
              <div className="kitm-in">
                <p className="text-[13px] text-muted-foreground">{t.exporting}</p>
                <span className="mt-2 block h-2 overflow-hidden rounded-full bg-track">
                  <span className="block h-full origin-left rounded-full bg-primary transition-transform duration-100" style={{ transform: `scaleX(${round(progress, 3)})` }} />
                </span>
              </div>
            )}
            {state === 'done' && (
              <div className="kitm-in rounded-lg bg-[color-mix(in_oklab,var(--success)_9%,var(--card))] p-3.5">
                <p className="flex items-center gap-2 text-[14px] font-semibold text-foreground">
                  <Icon name="check-circle" size={16} className="text-success-foreground" />
                  {t.ready}
                </p>
                <p className="mt-1 text-[12.5px] text-muted-foreground">{t.emailToo}</p>
              </div>
            )}
          </div>
          <div className="mt-5 grid gap-2">
            {state === 'done' ? (
              <>
                <Button iconLeft="download" onClick={() => void onAction?.('download', { file })}>
                  {t.download}
                </Button>
                <Button variant="ghost" size="sm" onClick={() => setState('idle')}>
                  {t.another}
                </Button>
              </>
            ) : (
              <Button disabled={!n || state === 'busy'} iconLeft={state === 'busy' ? 'loader' : 'download'} onClick={go}>
                {state === 'busy' ? t.exporting : fill(t.export, { n: num(locale, n) })}
              </Button>
            )}
          </div>
        </aside>
      </div>
    </Main>
  );
}

/* ------------------------------------------------------------------ */
/* columns                                                             */
/* ------------------------------------------------------------------ */

function Columns({ t, title, subtitle, columns: start = [], onAction }: P) {
  const [cols, setCols] = useState(start.map((c) => ({ ...c, on: c.on ?? true })));
  const [saved, setSaved] = useState(false);
  const [area, enter] = useEnter<HTMLDivElement>();
  const listRef = useRef<HTMLUListElement>(null);
  const [rowRef, fade] = useScrollFade<HTMLDivElement>();
  const on = cols.filter((c) => c.on);
  const set = (fn: (l: typeof cols) => typeof cols) => {
    setCols(fn);
    setSaved(false);
  };
  const move = (i: number, d: number) =>
    set((l) => {
      const j = i + d;
      if (j < 0 || j >= l.length) return l;
      const c = [...l];
      [c[i], c[j]] = [c[j], c[i]];
      return c;
    });
  const before = useRef<Map<string, number>>(new Map());
  if (typeof window !== 'undefined' && listRef.current) before.current = new Map(Array.from(listRef.current.children, (el) => [(el as HTMLElement).dataset.id ?? '', el.getBoundingClientRect().top]));
  useIso(() => {
    if (!listRef.current || prefersReducedMotion()) return;
    Array.from(listRef.current.children).forEach((el) => {
      const a = before.current.get((el as HTMLElement).dataset.id ?? '');
      const b = el.getBoundingClientRect().top;
      if (a !== undefined && Math.abs(a - b) > 1) el.animate([{ transform: `translateY(${a - b}px)` }, { transform: 'none' }], { duration: 400, easing: KITM_EASE });
    });
  }, [cols.map((c) => c.id).join()]);
  const rows = Math.max(0, ...on.map((c) => c.samples?.length ?? 0));
  return (
    <Main>
      <Header title={title} subtitle={subtitle} />
      <p className="mt-2 text-[13.5px] text-muted-foreground">{t.columnsText}</p>
      <div ref={area} {...enter} className="mt-6 grid grid-cols-[minmax(0,1fr)] gap-6 lg:grid-cols-[20rem_minmax(0,1fr)] lg:items-start">
        <Card
          title={t.columns}
          description={<span key={on.length} className="kitm-in tabular-nums">{fill(t.picked, { n: on.length, total: cols.length })}</span>}
          className="kitm-up"
          bodyClassName="p-0 sm:p-0"
          action={
            <span className="flex gap-1">
              <button type="button" onClick={() => set((l) => l.map((c) => ({ ...c, on: true })))} className="h-11 min-w-11 rounded-md px-2.5 text-[12.5px] font-medium text-muted-foreground hover:bg-accent hover:text-foreground sm:h-8 sm:min-w-0 sm:px-2">
                {t.pickAll}
              </button>
              <button type="button" onClick={() => set((l) => l.map((c) => ({ ...c, on: false })))} className="h-11 min-w-11 rounded-md px-2.5 text-[12.5px] font-medium text-muted-foreground hover:bg-accent hover:text-foreground sm:h-8 sm:min-w-0 sm:px-2">
                {t.pickNone}
              </button>
            </span>
          }
        >
          <ul ref={listRef} className="divide-y divide-border">
            {cols.map((c, i) => (
              <li key={c.id} data-id={c.id} className={cn('flex items-center gap-2 bg-card px-3 py-1.5 transition-colors', !c.on && 'bg-surface')}>
                <label className="flex min-h-11 min-w-0 flex-1 cursor-pointer items-center gap-3 px-1">
                  <input type="checkbox" checked={c.on} onChange={() => set((l) => l.map((x) => (x.id === c.id ? { ...x, on: !x.on } : x)))} className="size-4 shrink-0 accent-[var(--primary)]" />
                  <span className={cn('truncate text-[14px]', c.on ? 'text-foreground' : 'text-muted-foreground')}>{c.label}</span>
                </label>
                <button type="button" aria-label={fill(t.moveUp, { name: c.label })} disabled={i === 0} onClick={() => move(i, -1)} className="grid size-11 shrink-0 place-items-center rounded-md text-muted-foreground hover:bg-accent hover:text-foreground disabled:opacity-30 sm:size-8">
                  <Icon name="chevron-up" size={15} />
                </button>
                <button type="button" aria-label={fill(t.moveDown, { name: c.label })} disabled={i === cols.length - 1} onClick={() => move(i, 1)} className="grid size-11 shrink-0 place-items-center rounded-md text-muted-foreground hover:bg-accent hover:text-foreground disabled:opacity-30 sm:size-8">
                  <Icon name="chevron-down" size={15} />
                </button>
              </li>
            ))}
          </ul>
        </Card>
        <section className="kitm-up [--kitm-d:100ms] min-w-0 overflow-hidden rounded-xl border border-border bg-card shadow-[var(--highlight),var(--shadow-sm)]">
          <div className="flex items-center justify-between gap-3 border-b border-border px-4 py-3.5 sm:px-5">
            <h2 className="text-[14px] font-semibold text-foreground">{t.preview}</h2>
            <Button
              size="sm"
              variant={saved ? 'ghost' : 'outline'}
              iconLeft={saved ? 'check' : 'bookmark'}
              disabled={!on.length}
              onClick={async () => {
                await run(onAction, 'save-columns', { columns: on.map((c) => c.id) });
                setSaved(true);
              }}
            >
              {saved ? t.saved : t.saveSet}
            </Button>
          </div>
          {on.length ? (
            <div ref={rowRef} className={cn('kit-no-scrollbar overflow-x-auto outline-none focus-visible:ring-2 focus-visible:ring-inset focus-visible:ring-[color-mix(in_oklab,var(--primary)_50%,transparent)]', fade)} tabIndex={0} aria-label={t.preview}>
              <table className="w-full min-w-max border-collapse text-left text-[13px]">
                <thead>
                  <tr className="border-b border-border bg-surface">
                    {on.map((c) => (
                      <th key={c.id} scope="col" className="kitm-in whitespace-nowrap px-4 py-2.5 text-[12px] font-semibold text-foreground">
                        {c.label}
                      </th>
                    ))}
                  </tr>
                </thead>
                <tbody className="divide-y divide-border">
                  {Array.from({ length: rows }, (_, r) => (
                    <tr key={r}>
                      {on.map((c) => (
                        <td key={c.id} className="max-w-[14rem] truncate whitespace-nowrap px-4 py-2.5 tabular-nums text-muted-foreground">
                          {c.samples?.[r] ?? ''}
                        </td>
                      ))}
                    </tr>
                  ))}
                </tbody>
              </table>
            </div>
          ) : (
            <p className="px-5 py-12 text-center text-[13.5px] text-muted-foreground">{t.noColumns}</p>
          )}
        </section>
      </div>
    </Main>
  );
}

/* ------------------------------------------------------------------ */
/* scheduled                                                           */
/* ------------------------------------------------------------------ */

function Scheduled({ t, title, subtitle, schedules = [], now, locale, onAction }: P) {
  const id = useId();
  const [items, setItems] = useState(schedules);
  const [name, setName] = useState('');
  const [format, setFormat] = useState<ExportFormat>('xlsx');
  const [every, setEvery] = useState<'daily' | 'weekly' | 'monthly'>('weekly');
  const [time, setTime] = useState('07:00');
  const [toKind, setToKind] = useState<'email' | 'folder'>('email');
  const [to, setTo] = useState('');
  const [tried, setTried] = useState(false);
  const [busy, setBusy] = useState(false);
  const [msg, setMsg] = useState('');
  const [fresh, setFresh] = useState('');
  const [area, enter] = useEnter<HTMLDivElement>();
  const add = async (e: React.FormEvent) => {
    e.preventDefault();
    setTried(true);
    if (!name.trim() || !to.trim()) return;
    setBusy(true);
    await run(onAction, 'schedule', { name, format, every, time, toKind, to });
    const s: ScheduledExport = { id: `s${Date.now()}`, name: name.trim(), format, when: `${t[every]}, ${time}`, to: to.trim(), toKind, enabled: true, next: nextRun(every, time, now) };
    setItems((l) => [s, ...l]);
    setFresh(s.id);
    setName('');
    setTo('');
    setTried(false);
    setBusy(false);
    setMsg(fill(t.added, { name: s.name }));
  };
  return (
    <Main>
      <Header title={title} subtitle={subtitle} />
      <p className="mt-2 text-[13.5px] text-muted-foreground">{t.scheduledText}</p>
      <div ref={area} {...enter} className="mt-6 grid grid-cols-[minmax(0,1fr)] gap-6 lg:grid-cols-[minmax(0,1fr)_22rem] lg:items-start">
        <ul className="grid grid-cols-[minmax(0,1fr)] gap-3">
          {items.map((s, i) => (
            <li key={s.id} className={cn('kitm-up flex items-start gap-4 rounded-xl border border-border bg-card p-4 shadow-[var(--highlight),var(--shadow-sm)] transition-opacity sm:p-5', !s.enabled && 'opacity-70', s.id === fresh && 'kitm-flash')} style={{ '--kitm-d': `${i * 60}ms` } as React.CSSProperties}>
              <FileArt format={s.format} />
              <div className="min-w-0 flex-1">
                <p className="truncate text-[15px] font-semibold text-foreground">{s.name}</p>
                <p className="mt-1 flex flex-wrap items-center gap-x-3 gap-y-1 text-[12.5px] text-muted-foreground">
                  <span className="inline-flex items-center gap-1.5">
                    <Icon name="repeat" size={13} />
                    {s.when}
                  </span>
                  <span className="inline-flex min-w-0 items-center gap-1.5">
                    <Icon name={s.toKind === 'email' ? 'mail' : 'folder'} size={13} className="shrink-0" />
                    <span className="truncate">{s.to}</span>
                  </span>
                </p>
                <p className={cn('mt-1 text-[12.5px] font-medium', s.enabled ? 'text-[color-mix(in_oklab,var(--primary)_75%,var(--foreground))]' : 'text-subtle-foreground')}>{s.enabled ? (s.next ? fill(t.next, { when: rel(locale, s.next, now) }) : '') : t.paused}</p>
              </div>
              <Switch
                checked={s.enabled}
                aria-label={fill(t.toggle, { name: s.name })}
                onCheckedChange={(v) => {
                  setItems((l) => l.map((x) => (x.id === s.id ? { ...x, enabled: v } : x)));
                  void run(onAction, 'toggle', { id: s.id, enabled: v });
                }}
              />
            </li>
          ))}
        </ul>
        <form noValidate onSubmit={add} className="kitm-up [--kitm-d:120ms] grid gap-4 rounded-xl border border-border bg-card p-4 shadow-[var(--highlight),var(--shadow-sm)] sm:p-5 lg:sticky lg:top-6">
          <h2 className="text-[14px] font-semibold text-foreground">{t.newSchedule}</h2>
          <div className="grid gap-1.5">
            <label className="text-[13px] font-medium text-foreground" htmlFor={`${id}-n`}>{t.name}</label>
            <input id={`${id}-n`} value={name} onChange={(e) => setName(e.target.value)} aria-invalid={tried && !name.trim()} aria-describedby={tried && !name.trim() ? `${id}-ne` : undefined} className={cn(control, tried && !name.trim() && 'border-[color-mix(in_oklab,var(--destructive)_70%,var(--border))]')} />
            {tried && !name.trim() && <span id={`${id}-ne`} className="kitm-in text-[12.5px] font-medium text-destructive">{t.nameError}</span>}
          </div>
          <div className="grid gap-1.5">
            <span className="text-[13px] font-medium text-foreground">{t.format}</span>
            <Segmented label={t.format} value={format} onChange={setFormat} className="flex w-full" options={(['csv', 'xlsx', 'json', 'pdf'] as ExportFormat[]).map((f) => ({ value: f, label: t[f] }))} />
          </div>
          <div className="grid grid-cols-[minmax(0,1fr)_6.5rem] gap-3">
            <label className="grid gap-1.5 text-[13px] font-medium text-foreground" htmlFor={`${id}-e`}>
              {t.every}
              <span className="relative block">
                <select id={`${id}-e`} value={every} onChange={(e) => setEvery(e.target.value as typeof every)} className={cn(control, 'appearance-none pe-8')}>
                  <option value="daily">{t.daily}</option>
                  <option value="weekly">{t.weekly}</option>
                  <option value="monthly">{t.monthly}</option>
                </select>
                <Icon name="chevrons-up-down" size={14} className="pointer-events-none absolute end-2.5 top-1/2 -translate-y-1/2 text-subtle-foreground" />
              </span>
            </label>
            <label className="grid gap-1.5 text-[13px] font-medium text-foreground" htmlFor={`${id}-t`}>
              {t.at}
              <input id={`${id}-t`} type="time" value={time} onChange={(e) => setTime(e.target.value)} className={cn(control, 'tabular-nums')} />
            </label>
          </div>
          <div className="grid gap-1.5">
            <span className="text-[13px] font-medium text-foreground">{t.sendTo}</span>
            <Segmented
              label={t.sendTo}
              value={toKind}
              onChange={setToKind}
              className="flex w-full"
              options={[
                { value: 'email', label: <><Icon name="mail" size={14} />{t.toEmail}</> },
                { value: 'folder', label: <><Icon name="folder" size={14} />{t.toFolder}</> },
              ]}
            />
            <input aria-label={toKind === 'email' ? t.address : t.folder} value={to} onChange={(e) => setTo(e.target.value)} placeholder={toKind === 'email' ? 'team@example.com' : '/exports/weekly'} aria-invalid={tried && !to.trim()} aria-describedby={tried && !to.trim() ? `${id}-te` : undefined} className={cn(control, 'mt-1', tried && !to.trim() && 'border-[color-mix(in_oklab,var(--destructive)_70%,var(--border))]')} />
            {tried && !to.trim() && <span id={`${id}-te`} className="kitm-in text-[12.5px] font-medium text-destructive">{t.toError}</span>}
          </div>
          <Button type="submit" disabled={busy} iconLeft={busy ? 'loader' : 'plus'}>
            {busy ? t.adding : t.add}
          </Button>
        </form>
      </div>
      <Live text={msg} />
    </Main>
  );
}

/* ------------------------------------------------------------------ */
/* history                                                             */
/* ------------------------------------------------------------------ */

function History({ t, title, subtitle, files = [], now, locale, onAction }: P) {
  const [items, setItems] = useState(files);
  const [filter, setFilter] = useState<'all' | ExportFile['status']>('all');
  const [area, enter] = useEnter<HTMLDivElement>();
  const shown = items.filter((f) => filter === 'all' || f.status === filter);
  const label: Record<ExportFile['status'], string> = { ready: t.statusReady, running: t.statusRunning, expired: t.statusExpired, failed: t.statusFailed };
  const tone: Record<ExportFile['status'], string> = {
    ready: 'bg-[color-mix(in_oklab,var(--success)_14%,transparent)] text-success-foreground',
    running: 'bg-[color-mix(in_oklab,var(--primary)_12%,transparent)] text-[color-mix(in_oklab,var(--primary)_75%,var(--foreground))]',
    expired: 'bg-muted text-muted-foreground',
    failed: 'bg-[color-mix(in_oklab,var(--destructive)_11%,transparent)] text-destructive',
  };
  // A running export finishes on its own after a moment
  useEffect(() => {
    if (!items.some((f) => f.status === 'running')) return;
    const id = window.setTimeout(() => setItems((l) => l.map((f) => (f.status === 'running' ? { ...f, status: 'ready', expires: f.expires ?? now } : f))), prefersReducedMotion() ? 0 : 3200);
    return () => window.clearTimeout(id);
  }, [items, now]);
  const rerun = (f: ExportFile) => {
    const n: ExportFile = { ...f, id: `e${Date.now()}`, created: now, status: 'running', expires: undefined };
    setItems((l) => [n, ...l]);
    void onAction?.('rerun', { id: f.id });
  };
  return (
    <Main>
      <Header title={title} subtitle={subtitle}>
        <Segmented
          label={t.history}
          value={filter}
          onChange={setFilter}
          className="grid w-full grid-cols-2 gap-1 sm:flex sm:w-auto"
          options={[
            { value: 'all', label: t.allStatus },
            { value: 'ready', label: t.statusReady },
            { value: 'expired', label: t.statusExpired },
            { value: 'failed', label: t.statusFailed },
          ]}
        />
      </Header>
      <p className="mt-2 text-[13.5px] text-muted-foreground">{t.historyText}</p>
      <div ref={area} {...enter} className="mt-6">
        <ul className="kitm-up overflow-hidden rounded-xl border border-border bg-card shadow-[var(--highlight),var(--shadow-sm)]">
          {shown.map((f) => (
            <li key={f.id} className={cn('grid grid-cols-[auto_minmax(0,1fr)_auto] items-center gap-x-4 gap-y-2 border-b border-border px-4 py-3.5 last:border-b-0 sm:px-5 md:grid-cols-[auto_minmax(0,1.4fr)_minmax(0,1fr)_7rem_10rem]', f.status === 'running' && 'kitm-fly')}>
              <FileArt format={f.format} className={cn(f.status === 'expired' && 'opacity-50')} />
              <div className="min-w-0">
                <p className={cn('truncate text-[14px] font-medium', f.status === 'expired' ? 'text-muted-foreground' : 'text-foreground')}>{f.name}</p>
                <p className="truncate text-[12.5px] tabular-nums text-muted-foreground">
                  {fill(t.rowsN, { n: num(locale, f.rows) })} · {bytes(locale, f.size)}
                  <span className="md:hidden"> · {rel(locale, f.created, now)}</span>
                </p>
              </div>
              <p className="hidden min-w-0 text-[12.5px] text-muted-foreground md:block">
                <span className="block tabular-nums">{rel(locale, f.created, now)}</span>
                {f.by && <span className="block truncate">{fill(t.by, { name: f.by })}</span>}
              </p>
              <span className={cn('col-start-2 inline-flex h-6 w-fit items-center gap-1.5 rounded-md px-2 text-[12px] font-semibold md:col-start-auto', tone[f.status])}>
                {f.status === 'running' && <Icon name="loader" size={12} className="motion-safe:animate-spin" />}
                {label[f.status]}
              </span>
              <div className="col-start-3 row-span-2 row-start-1 flex items-center justify-end gap-1 md:col-start-auto md:row-span-1 md:row-start-auto">
                {f.status === 'ready' && (
                  <Button size="sm" variant="outline" iconLeft="download" onClick={() => void onAction?.('download', { id: f.id })} title={f.expires ? fill(t.expiresIn, { when: rel(locale, f.expires, now) }) : undefined}>
                    <span className="max-sm:sr-only">{t.download}</span>
                  </Button>
                )}
                {(f.status === 'expired' || f.status === 'failed') && (
                  <Button size="sm" variant="ghost" iconLeft="rotate-cw" onClick={() => rerun(f)}>
                    <span className="max-sm:sr-only">{f.status === 'failed' ? t.retry : t.rerun}</span>
                  </Button>
                )}
              </div>
            </li>
          ))}
        </ul>
      </div>
    </Main>
  );
}

/* ------------------------------------------------------------------ */
/* account-archive                                                     */
/* ------------------------------------------------------------------ */

function Archive({ t, title, subtitle, parts = [], email = '', locale, onAction }: P) {
  const id = useId();
  const [picked, setPicked] = useState<Set<string>>(new Set(parts.map((p) => p.id)));
  const [pw, setPw] = useState('');
  const [tried, setTried] = useState(false);
  const [state, setState] = useState<'idle' | 'busy' | 'done'>('idle');
  const [area, enter] = useEnter<HTMLDivElement>();
  const total = parts.filter((p) => picked.has(p.id)).reduce((a, p) => a + p.size, 0);
  const max = parts.reduce((a, p) => a + p.size, 0) || 1;
  const minutes = Math.max(5, Math.round(total / 40_000_000));
  const submit = async (e: React.FormEvent) => {
    e.preventDefault();
    setTried(true);
    if (!pw || !picked.size) return;
    setState('busy');
    await run(onAction, 'archive', { parts: [...picked] }, 900);
    setState('done');
  };
  const steps = [t.step1, t.step2, t.step3];
  return (
    <Main>
      <Header title={title} subtitle={subtitle} />
      <div ref={area} {...enter} className="mt-6 grid grid-cols-[minmax(0,1fr)] gap-6 lg:grid-cols-[minmax(0,1fr)_20rem] lg:items-start">
        <form noValidate onSubmit={submit} className="kitm-up min-w-0 rounded-xl border border-border bg-card shadow-[var(--highlight),var(--shadow-sm)]">
          <div className="flex items-start gap-3.5 border-b border-border p-4 sm:p-6">
            <span className="grid size-10 shrink-0 place-items-center rounded-lg bg-[color-mix(in_oklab,var(--primary)_12%,var(--card))] text-[color-mix(in_oklab,var(--primary)_80%,var(--foreground))]">
              <Icon name="archive" size={18} />
            </span>
            <p className="max-w-[40rem] text-pretty text-[14px] leading-relaxed text-muted-foreground">{t.archiveText}</p>
          </div>
          {state === 'done' ? (
            <div className="kitm-in px-4 py-10 text-center sm:px-6">
              <span className="mx-auto grid size-14 place-items-center rounded-full bg-[color-mix(in_oklab,var(--primary)_12%,var(--card))] text-[color-mix(in_oklab,var(--primary)_80%,var(--foreground))]">
                <Icon name="archive" size={24} className="kitm-pop" />
              </span>
              <h3 className="mt-5 text-[18px] font-semibold text-foreground">{t.requested}</h3>
              <p className="mx-auto mt-2 max-w-[28rem] text-pretty text-[14px] text-muted-foreground">{fill(t.requestedText, { email })}</p>
              <p className="mt-4 inline-flex items-center gap-2 rounded-full bg-muted px-3 py-1 text-[12.5px] font-medium text-foreground">
                <Icon name="clock" size={13} />
                {fill(t.eta, { n: minutes })}
              </p>
            </div>
          ) : (
            <div className="grid gap-6 p-4 sm:p-6">
              <fieldset>
                <legend className="flex w-full items-baseline justify-between gap-3 text-[13px] font-medium text-foreground">
                  {t.whatIn}
                  <span key={total} className="kitm-in text-[12.5px] font-normal tabular-nums text-muted-foreground">
                    {fill(t.total, { size: bytes(locale, total) })}
                  </span>
                </legend>
                {/* One bar for the whole archive, each part as wide as its size */}
                <span aria-hidden className="mt-3 flex h-2.5 gap-[2px] overflow-hidden rounded-full bg-track">
                  {parts.map((p, i) => (
                    <span key={p.id} className="h-full transition-[flex-grow,opacity] duration-500 ease-[var(--ease-kit)]" style={{ flexGrow: picked.has(p.id) ? p.size / max : 0.0001, flexBasis: 0, background: `color-mix(in oklab, var(--primary) ${100 - i * 14}%, var(--muted))` }} />
                  ))}
                </span>
                <ul className="mt-4 grid gap-2 sm:grid-cols-2">
                  {parts.map((p) => {
                    const on = picked.has(p.id);
                    return (
                      <li key={p.id}>
                        <label className={cn('flex min-h-14 cursor-pointer items-start gap-3 rounded-lg border p-3 transition-[border-color,background-color]', on ? 'border-[color-mix(in_oklab,var(--primary)_50%,var(--border))] bg-[color-mix(in_oklab,var(--primary)_5%,var(--card))]' : 'border-border hover:border-border-strong')}>
                          <input
                            type="checkbox"
                            checked={on}
                            onChange={() =>
                              setPicked((s) => {
                                const n = new Set(s);
                                n.has(p.id) ? n.delete(p.id) : n.add(p.id);
                                return n;
                              })
                            }
                            className="mt-0.5 size-4 shrink-0 accent-[var(--primary)]"
                          />
                          <span className="min-w-0 flex-1">
                            <span className="flex items-center justify-between gap-2 text-[13.5px] font-medium text-foreground">
                              <span className="flex min-w-0 items-center gap-2">
                                {p.icon && <Icon name={p.icon} size={14} className="shrink-0 text-muted-foreground" />}
                                <span className="truncate">{p.label}</span>
                              </span>
                              <span className="shrink-0 text-[12px] font-normal tabular-nums text-subtle-foreground">{bytes(locale, p.size)}</span>
                            </span>
                            {p.description && <span className="mt-0.5 block text-pretty text-[12.5px] leading-snug text-muted-foreground">{p.description}</span>}
                          </span>
                        </label>
                      </li>
                    );
                  })}
                </ul>
              </fieldset>
              <div className="grid gap-1.5 sm:max-w-sm">
                <label className="text-[13px] font-medium text-foreground" htmlFor={`${id}-pw`}>{t.confirm}</label>
                <input id={`${id}-pw`} type="password" autoComplete="current-password" value={pw} onChange={(e) => setPw(e.target.value)} placeholder={t.password} aria-invalid={tried && !pw} aria-describedby={tried && !pw ? `${id}-pwe` : undefined} className={cn(control, tried && !pw && 'border-[color-mix(in_oklab,var(--destructive)_70%,var(--border))]')} />
                {tried && !pw && <span id={`${id}-pwe`} className="kitm-in text-[12.5px] font-medium text-destructive">{t.passwordError}</span>}
              </div>
              <Button type="submit" disabled={state === 'busy' || !picked.size} iconLeft={state === 'busy' ? 'loader' : 'archive'} className="max-sm:w-full sm:justify-self-start">
                {state === 'busy' ? t.requesting : t.request}
              </Button>
            </div>
          )}
        </form>
        <aside className="kitm-up [--kitm-d:120ms] rounded-xl border border-border bg-surface p-4 sm:p-5 lg:sticky lg:top-6">
          <h2 className="text-[14px] font-semibold text-foreground">{t.steps}</h2>
          <ol className="relative mt-4 grid gap-4">
            <span aria-hidden className="absolute bottom-3 start-[11px] top-3 w-px bg-border" />
            {steps.map((s, i) => (
              <li key={s} className="relative flex items-center gap-3">
                <span className={cn('relative z-[1] grid size-6 shrink-0 place-items-center rounded-full text-[11.5px] font-semibold tabular-nums ring-4 ring-surface transition-colors duration-500', state === 'done' && i === 0 ? 'bg-primary text-primary-foreground' : 'bg-card text-foreground ring-offset-0 [box-shadow:inset_0_0_0_1px_var(--border)]')}>
                  {state === 'done' && i === 0 ? <Icon name="loader" size={12} className="motion-safe:animate-spin" /> : i + 1}
                </span>
                <span className="text-[13.5px] text-foreground">{s}</span>
              </li>
            ))}
          </ol>
        </aside>
      </div>
    </Main>
  );
}

/* ------------------------------------------------------------------ */
/* DataExport                                                          */
/* ------------------------------------------------------------------ */

/**
 * Export screens for apps: a quick export with format, rows and a ready
 * file, columns to pick and order with a preview, scheduled exports to an
 * address or folder, the export history and a full account archive.
 *   <DataExport variant="quick-export" title="Export" entity="contacts" counts={{ all, filtered, selected }} />
 */
export function DataExport({ variant = 'quick-export', sidebar, labels, className, entity = 'records', now = '2026-10-19T14:30', ...props }: DataExportProps) {
  const t = useTexts(TEXTS, labels);
  const locale = useLocale();
  const p: P = { ...props, t, locale, entity, now };
  const body = (() => {
    switch (variant) {
      case 'columns':
        return <Columns {...p} />;
      case 'scheduled':
        return <Scheduled {...p} />;
      case 'history':
        return <History {...p} />;
      case 'account-archive':
        return <Archive {...p} />;
      default:
        return <QuickExport {...p} />;
    }
  })();
  if (!sidebar)
    return (
      <div className={cn('min-h-dvh bg-background', className)}>
        <KitmStyle />
        {body}
      </div>
    );
  return (
    <Sidebar mobile="drawer" {...sidebar} className={className}>
      <KitmStyle />
      {body}
    </Sidebar>
  );
}