/* ============================================================================
   LISTING UI
   ----------------------------------------------------------------------------
   The pieces the three listings share: page header, filter bar, result
   summary, empty state, tabs, pagination, metadata list and detail-page
   scaffolding.

   None of this duplicates the component library - Button, Input and the Card
   family come from ~/components/ui and are used as they are; what is here is
   layout and the handful of controls (a native <select>, a tab strip, a
   pagination list) the library does not ship.

   RULES FOLLOWED THROUGHOUT
     * colour, radius, spacing and motion are tier-2 semantic tokens only,
       spent through the Tailwind bridge (bg-surface-raised, text-text-primary)
       or as arbitrary values (shadow-[var(--elevation-card)]);
     * every directional property is logical (ps-/pe-/ms-/me-/start-/end-,
       border-s), so the Arabic build mirrors with no second stylesheet;
     * type comes from the published roles - display-sm, heading-h2, body-md,
       label-md - never a raw font-size.
   ========================================================================= */

import type { ReactNode } from "react";
import { Form, Link, useSubmit } from "react-router";

import { ArrowIcon, Button } from "~/components/ui/Button";
import { Input } from "~/components/ui/Input";
import type { Translator } from "~/i18n";

import { Container, PageHero, type HeroWash } from "../_page-kit/sections";
import type { PaginationModel, SelectOption } from "./listing";
import { withParam } from "./listing";

import "../_page-kit/motion.css";

function cx(...parts: Array<string | false | null | undefined>): string {
  return parts.filter(Boolean).join(" ");
}

/* ---------------------------------------------------------------------------
   PAGE SCAFFOLDING
   ------------------------------------------------------------------------ */

/** The centred column every page in this section uses. */
export function PageShell({
  children,
  className,
}: {
  children: ReactNode;
  className?: string;
}) {
  return (
    <div
      className={cx(
        "mx-auto flex w-full max-w-[var(--layout-content-max)] flex-col",
        "gap-2xl px-[var(--layout-gutter)] py-3xl",
        className,
      )}
    >
      {children}
    </div>
  );
}

/**
 * The redesigned listing hero (2026 drafts): an accent eyebrow over the
 * headline, the standfirst, the two slow washes drifting behind it, the
 * staggered entrance, and a rule drawn on under the whole band.
 *
 * It is `PageHero` from the page kit, not a second hero: the same component
 * the home page uses, with `ambient` and `reveal` turned on, so every page on
 * the site arrives the same way and there is one hero to maintain.
 *
 * `children` is the slot under the headline row - the knowledge hub puts its
 * search box there; `actions` is the page kit's own inline-end slot.
 */
export function ListingHero({
  heading,
  intro,
  eyebrow,
  actions,
  ambient,
  children,
}: {
  heading: string;
  intro?: string;
  eyebrow?: string;
  actions?: ReactNode;
  /** This page's own drifting wash - every draft positions its own. */
  ambient?: readonly HeroWash[];
  children?: ReactNode;
}) {
  return (
    <div className="flex flex-col gap-2xl">
      <PageHero
        title={heading}
        {...(eyebrow ? { eyebrow } : {})}
        {...(intro ? { lead: intro } : {})}
        {...(actions ? { actions } : {})}
        {...(ambient ? { ambient } : {})}
        reveal
      />

      {children ? <Container>{children}</Container> : null}

      {/* The draft closes the hero with a hairline. Drawn on from the inline
          start rather than simply appearing - the `barGrow` of the drafts. */}
      <div
        aria-hidden="true"
        className="sh-bar-grow h-px w-full bg-[var(--border-subtle)]"
      />
    </div>
  );
}

export function PageHeader({
  heading,
  intro,
  eyebrow,
  children,
}: {
  heading: string;
  intro?: string;
  eyebrow?: string;
  children?: ReactNode;
}) {
  return (
    <header className="flex max-w-[var(--layout-prose-max)] flex-col gap-md">
      {eyebrow ? <p className="label-md uppercase text-text-accent">{eyebrow}</p> : null}
      <h1 className="display-sm text-text-primary">{heading}</h1>
      {intro ? <p className="body-lg text-text-secondary">{intro}</p> : null}
      {children}
    </header>
  );
}

/* ---------------------------------------------------------------------------
   FILTERS
   ------------------------------------------------------------------------ */

/**
 * A native <select>. Native on purpose: it is keyboard- and screen-reader
 * correct in every browser, it works before hydration, and `color-scheme` on
 * the surface already makes the dropdown itself paint dark or light.
 */
export function FilterSelect({
  name,
  label,
  value,
  options,
  allLabel,
  disabled,
}: {
  name: string;
  label: string;
  value: string;
  options: readonly SelectOption[];
  /**
   * Label of the "no filter" option, e.g. "All". Omit it for a control that
   * always has a value - a sort order has no "unset" state, and offering one
   * would duplicate whichever option is the default.
   */
  allLabel?: string;
  disabled?: boolean;
}) {
  return (
    <div className="flex min-w-0 flex-col gap-2xs">
      <label className="label-md text-text-tertiary" htmlFor={`filter-${name}`}>
        {label}
      </label>
      <select
        id={`filter-${name}`}
        name={name}
        defaultValue={value}
        disabled={disabled || options.length === 0}
        className={cx(
          "body-md w-full rounded-[var(--radius-control)] border bg-field-bg",
          "border-field-border px-md py-sm text-[var(--field-fg)]",
          "transition-colors duration-[var(--motion-duration-fast)]",
          "ease-[var(--motion-ease-standard)] hover:border-[var(--field-border-hover)]",
          "disabled:cursor-not-allowed disabled:bg-[var(--field-bg-disabled)]",
          "disabled:text-[var(--field-fg-disabled)]",
        )}
      >
        {allLabel === undefined ? null : <option value="">{allLabel}</option>}
        {options.map((option) => (
          <option key={option.value} value={option.value}>
            {option.label}
          </option>
        ))}
      </select>
    </div>
  );
}

/**
 * The filter bar. A real `<form method="get">`, so every combination of
 * filters is a URL: shareable, indexable, and usable with scripting off. When
 * scripting is on, changing a control submits immediately; the Apply button
 * stays for the case where it is not.
 *
 * `page` is deliberately NOT a field: submitting the form drops it, which
 * returns the reader to page 1 of the new result set.
 */
export function FilterBar({
  legend,
  action,
  applyLabel,
  clearLabel,
  clearHref,
  showClear,
  children,
}: {
  legend: string;
  /** The listing's own pathname - keeps the GET target explicit. */
  action: string;
  applyLabel: string;
  clearLabel: string;
  clearHref: string;
  showClear: boolean;
  children: ReactNode;
}) {
  const submit = useSubmit();

  return (
    <Form
      method="get"
      action={action}
      aria-label={legend}
      onChange={(event) => {
        // Progressive enhancement: with JS, changing a control applies at once.
        if (event.target instanceof HTMLSelectElement) {
          submit(event.currentTarget, { method: "get" });
        }
      }}
      className={cx(
        "flex flex-col gap-md rounded-card border border-border-subtle",
        "bg-surface-raised p-lg shadow-[var(--elevation-raised)]",
      )}
    >
      <div className="grid gap-md sm:grid-cols-2 lg:grid-cols-4">{children}</div>

      <div className="flex flex-wrap items-center gap-sm">
        <Button type="submit" variant="secondary" size="sm">
          {applyLabel}
        </Button>
        {showClear ? (
          <Button as={Link} to={clearHref} variant="ghost" size="sm">
            {clearLabel}
          </Button>
        ) : null}
      </div>
    </Form>
  );
}

/** The search box of the knowledge hub. Submits with the surrounding form. */
export function FilterSearch({
  label,
  placeholder,
  defaultValue,
  name = "q",
}: {
  label: string;
  placeholder: string;
  defaultValue: string;
  name?: string;
}) {
  return (
    <Input
      type="search"
      name={name}
      label={label}
      placeholder={placeholder}
      defaultValue={defaultValue}
      className="min-w-0"
    />
  );
}

/* ---------------------------------------------------------------------------
   RESULTS
   ------------------------------------------------------------------------ */

/** "Showing 1–12 of 34". Announced politely when a filter changes the count. */
export function ResultSummary({
  pagination,
  t,
}: {
  pagination: PaginationModel;
  t: Translator;
}) {
  return (
    <p className="body-sm text-text-tertiary" role="status">
      {pagination.total === 0
        ? null
        : t("pagination.showing", {
            from: pagination.from,
            to: pagination.to,
            total: pagination.total,
          })}
    </p>
  );
}

export function EmptyState({
  title,
  body,
  children,
}: {
  title: string;
  body: string;
  children?: ReactNode;
}) {
  return (
    <div
      className={cx(
        // The drafts draw the empty panel as a dashed outline on whatever band
        // it sits on - no fill of its own, so it is correct on the #0B0B0A
        // ground and inside a #1D1D1B band alike.
        "flex flex-col items-start gap-md rounded-card border border-dashed",
        "border-border-default p-2xl",
      )}
    >
      <p className="heading-h3 text-text-primary">{title}</p>
      <p className="body-md max-w-[var(--layout-prose-max)] text-text-secondary">{body}</p>
      {children}
    </div>
  );
}

/* ---------------------------------------------------------------------------
   TABS
   ------------------------------------------------------------------------ */

export interface TabLink {
  readonly id: string;
  readonly label: string;
  readonly href: string;
  readonly isCurrent: boolean;
}

/**
 * The News tab strip. Links rather than buttons, because each tab is its own
 * URL - the reader can share "From the Network" and a crawler can reach it.
 */
export function TabLinks({ label, tabs }: { label: string; tabs: readonly TabLink[] }) {
  return (
    <nav aria-label={label}>
      <ul className="flex flex-wrap gap-xs border-b border-border-subtle">
        {tabs.map((tab) => (
          <li key={tab.id}>
            <Link
              to={tab.href}
              aria-current={tab.isCurrent ? "page" : undefined}
              className={cx(
                "-mb-px inline-block border-b-2 px-md py-sm body-md-bold",
                "transition-colors duration-[var(--motion-duration-fast)]",
                "ease-[var(--motion-ease-standard)]",
                tab.isCurrent
                  ? "border-border-accent text-text-accent"
                  : "border-transparent text-text-secondary hover:text-text-primary",
              )}
            >
              {tab.label}
            </Link>
          </li>
        ))}
      </ul>
    </nav>
  );
}

/* ---------------------------------------------------------------------------
   PAGINATION
   ------------------------------------------------------------------------ */

const PAGE_LINK = cx(
  "inline-flex min-w-[2.75rem] items-center justify-center rounded-[var(--radius-control)]",
  "border px-sm py-2xs body-sm-bold transition-colors",
  "duration-[var(--motion-duration-fast)] ease-[var(--motion-ease-standard)]",
);

/**
 * Numbered pagination, rendered as ordinary links so the whole archive is
 * crawlable. The arrows follow reading order: `ArrowIcon` mirrors itself in
 * RTL, so "next" points left on /ar without a second component.
 */
export function Pagination({
  model,
  pathname,
  params,
  t,
}: {
  model: PaginationModel;
  pathname: string;
  params: URLSearchParams;
  t: Translator;
}) {
  if (model.pageCount <= 1) return null;

  const href = (page: number) => `${pathname}${withParam(params, "page", page)}`;

  return (
    <nav aria-label={t("pagination.label")} className="flex flex-col gap-md">
      <ul className="flex flex-wrap items-center gap-xs">
        <li>
          {model.previous === undefined ? (
            <Button variant="ghost" size="sm" disabled iconStart={<ArrowIcon direction="backward" />}>
              {t("pagination.previous")}
            </Button>
          ) : (
            <Button
              as={Link}
              to={href(model.previous)}
              variant="ghost"
              size="sm"
              iconStart={<ArrowIcon direction="backward" />}
            >
              {t("pagination.previous")}
            </Button>
          )}
        </li>

        {model.pages.map((entry, index) => {
          const previousPage = model.pages[index - 1]?.page;
          const gap = previousPage !== undefined && entry.page - previousPage > 1;

          return (
            <li key={entry.page} className="flex items-center gap-xs">
              {gap ? (
                <span aria-hidden="true" className="body-sm text-text-tertiary">
                  …
                </span>
              ) : null}
              <Link
                to={href(entry.page)}
                aria-current={entry.isCurrent ? "page" : undefined}
                aria-label={t("pagination.goToPage", { page: entry.page })}
                className={cx(
                  PAGE_LINK,
                  entry.isCurrent
                    ? "border-border-accent bg-surface-accent-subtle text-text-accent"
                    : "border-border-subtle text-text-secondary hover:border-border-default hover:text-text-primary",
                )}
              >
                {entry.page}
              </Link>
            </li>
          );
        })}

        <li>
          {model.next === undefined ? (
            <Button variant="ghost" size="sm" disabled iconEnd={<ArrowIcon />}>
              {t("pagination.next")}
            </Button>
          ) : (
            <Button
              as={Link}
              to={href(model.next)}
              variant="ghost"
              size="sm"
              iconEnd={<ArrowIcon />}
            >
              {t("pagination.next")}
            </Button>
          )}
        </li>
      </ul>

      <p className="body-sm text-text-tertiary">
        {t("pagination.page", { page: model.page, pageCount: model.pageCount })}
      </p>
    </nav>
  );
}

/* ---------------------------------------------------------------------------
   DETAIL PAGES
   ------------------------------------------------------------------------ */

export interface MetaItem {
  readonly label: string;
  readonly value: ReactNode;
}

/** The "Published / Author / Partner organisation" block of a detail page. */
export function MetaList({ heading, items }: { heading: string; items: readonly MetaItem[] }) {
  if (items.length === 0) return null;

  return (
    <section
      aria-label={heading}
      className={cx(
        "flex flex-col gap-md rounded-card border border-border-subtle",
        "bg-surface-raised p-lg",
      )}
    >
      <h2 className="label-md uppercase text-text-tertiary">{heading}</h2>
      <dl className="flex flex-col gap-sm">
        {items.map((item) => (
          <div key={item.label} className="flex flex-col gap-2xs">
            <dt className="body-sm text-text-tertiary">{item.label}</dt>
            <dd className="body-md-bold text-text-primary">{item.value}</dd>
          </div>
        ))}
      </dl>
    </section>
  );
}

/** Topic chips. Each one links back into the listing, pre-filtered. */
export function TopicChips({
  heading,
  topics,
}: {
  heading: string;
  topics: readonly { label: string; href?: string }[];
}) {
  if (topics.length === 0) return null;

  return (
    <section aria-label={heading} className="flex flex-col gap-xs">
      <h2 className="label-md uppercase text-text-tertiary">{heading}</h2>
      <ul className="flex flex-wrap gap-xs">
        {topics.map((topic) => (
          <li key={topic.label}>
            {topic.href ? (
              <Link
                to={topic.href}
                className={cx(
                  "inline-block rounded-pill border border-border-subtle px-sm py-2xs",
                  "body-sm text-text-secondary transition-colors",
                  "duration-[var(--motion-duration-fast)] ease-[var(--motion-ease-standard)]",
                  "hover:border-border-accent hover:text-text-accent",
                )}
              >
                {topic.label}
              </Link>
            ) : (
              <span className="inline-block rounded-pill border border-border-subtle px-sm py-2xs body-sm text-text-secondary">
                {topic.label}
              </span>
            )}
          </li>
        ))}
      </ul>
    </section>
  );
}

/** The link out of a detail page, arrow pointing against reading order. */
export function BackLink({ to, label }: { to: string; label: string }) {
  return (
    <Button
      as={Link}
      to={to}
      variant="ghost"
      size="sm"
      iconStart={<ArrowIcon direction="backward" />}
    >
      {label}
    </Button>
  );
}

/** A short, dot-separated metadata line under a card or a detail title. */
export function MetaLine({ items }: { items: readonly string[] }) {
  const present = items.filter(Boolean);
  if (present.length === 0) return null;

  return (
    <p className="body-sm text-text-tertiary">
      {present.map((item, index) => (
        <span key={`${item}-${index}`}>
          {index > 0 ? <span aria-hidden="true"> · </span> : null}
          {item}
        </span>
      ))}
    </p>
  );
}

/* ---------------------------------------------------------------------------
   PILL FILTERS
   ----------------------------------------------------------------------------
   The 2026 drafts replace the underlined tab strip with a row of pills on the
   calendar, the calls list and the activities index: a dot marks the pill in
   force and the rest are outlined. They are LINKS, exactly as the tab strip
   was - each combination of filters is its own URL, so it survives a share, a
   bookmark, the back button and a crawler that only follows links.
   ------------------------------------------------------------------------ */

export interface FilterPill {
  readonly id: string;
  readonly label: string;
  readonly href: string;
  readonly isCurrent: boolean;
}

export function FilterPills({
  label,
  pills,
  shape = "pill",
  hideLabel = false,
  children,
}: {
  label: string;
  pills: readonly FilterPill[];
  /**
   * The drafts draw two shapes on the same row: the filters themselves are
   * fully rounded, while the calendar's List / Month switch is a pair of
   * square controls. Same markup, same behaviour, one radius token apart.
   */
  shape?: "pill" | "control";
  /** The view switch carries no visible caption in the draft. */
  hideLabel?: boolean;
  /** Anything that belongs on the same row - a region select, a view switch. */
  children?: ReactNode;
}) {
  const radius = shape === "pill" ? "rounded-pill" : "rounded-[var(--radius-control)]";

  return (
    <nav aria-label={label} className="flex flex-wrap items-center gap-sm">
      <p
        className={cx(
          "label-md uppercase text-text-tertiary",
          hideLabel && "sr-only",
        )}
      >
        {label}
      </p>

      <ul className="flex flex-wrap items-center gap-xs">
        {pills.map((pill) => (
          <li key={pill.id}>
            <Link
              to={pill.href}
              prefetch="intent"
              aria-current={pill.isCurrent ? "page" : undefined}
              className={cx(
                "inline-flex items-center gap-xs border px-md py-xs",
                radius,
                "body-sm-bold transition-colors",
                "duration-[var(--motion-duration-fast)] ease-[var(--motion-ease-standard)]",
                pill.isCurrent
                  ? "border-border-accent bg-surface-accent-subtle text-text-primary"
                  : "border-border-default text-text-secondary hover:border-border-accent hover:text-text-primary",
              )}
            >
              {/* Decorative: `aria-current` already says which pill is on. */}
              {pill.isCurrent ? (
                <span
                  aria-hidden="true"
                  className="size-[7px] shrink-0 rounded-pill bg-[var(--surface-accent)]"
                />
              ) : null}
              {pill.label}
            </Link>
          </li>
        ))}
      </ul>

      {children}
    </nav>
  );
}

/**
 * A single `<select>` that navigates on change, styled as one of the pills
 * beside it. A real `<form method="get">`, so it still applies with scripting
 * off; `keep` carries the filters that are not this one, because a GET submit
 * replaces the whole query string.
 */
export function PillSelect({
  name,
  label,
  value,
  options,
  allLabel,
  applyLabel,
  action,
  keep,
}: {
  name: string;
  label: string;
  value: string;
  options: readonly SelectOption[];
  allLabel: string;
  /** Label of the fallback submit - shown because a <select> cannot submit. */
  applyLabel: string;
  action: string;
  /** Other query parameters to preserve, as [name, value] pairs. */
  keep?: readonly (readonly [string, string])[];
}) {
  const submit = useSubmit();

  return (
    <Form
      method="get"
      action={action}
      aria-label={label}
      onChange={(event) => {
        if (event.target instanceof HTMLSelectElement) {
          submit(event.currentTarget, { method: "get" });
        }
      }}
      className="flex items-center gap-xs"
    >
      {(keep ?? []).map(([key, kept]) => (
        <input key={key} type="hidden" name={key} value={kept} />
      ))}

      <label className="sr-only" htmlFor={`pill-${name}`}>
        {label}
      </label>
      <select
        id={`pill-${name}`}
        name={name}
        defaultValue={value}
        className={cx(
          "body-sm-bold rounded-pill border border-border-default bg-surface-raised",
          "px-md py-xs text-text-secondary transition-colors",
          "duration-[var(--motion-duration-fast)] ease-[var(--motion-ease-standard)]",
          "hover:border-border-accent hover:text-text-primary",
        )}
      >
        <option value="">{allLabel}</option>
        {options.map((option) => (
          <option key={option.value} value={option.value}>
            {option.label}
          </option>
        ))}
      </select>

      {/* Kept for the case where scripting is off - the same bargain the
          filter bar strikes. A <select> alone cannot submit its form. */}
      <Button type="submit" variant="ghost" size="sm">
        {applyLabel}
      </Button>
    </Form>
  );
}

/* ---------------------------------------------------------------------------
   FACET SIDEBAR - the resources listing
   ----------------------------------------------------------------------------
   The draft draws the resources filters as checkbox groups in a sticky rail.
   They are rendered as LINKS with a checkbox-shaped marker: one click sets the
   facet, clicking the active option clears it, and the result is still one
   URL per view. A real <input type="checkbox"> would promise multi-select,
   which the Strapi query behind this listing does not offer.
   ------------------------------------------------------------------------ */

export interface FacetOption {
  readonly value: string;
  readonly label: string;
  readonly href: string;
  readonly isCurrent: boolean;
}

export function FacetGroup({
  heading,
  options,
}: {
  heading: string;
  options: readonly FacetOption[];
}) {
  if (options.length === 0) return null;

  return (
    <div className="flex flex-col gap-sm border-t border-border-subtle pt-md">
      <p className="label-md uppercase text-text-tertiary">{heading}</p>
      <ul className="flex flex-col gap-2xs">
        {options.map((option) => (
          <li key={option.value}>
            <Link
              to={option.href}
              prefetch="intent"
              aria-current={option.isCurrent ? "true" : undefined}
              className={cx(
                "flex items-start gap-sm py-2xs text-start body-sm-bold",
                "transition-colors duration-[var(--motion-duration-fast)]",
                "ease-[var(--motion-ease-standard)]",
                option.isCurrent
                  ? "text-text-primary"
                  : "text-text-secondary hover:text-text-primary",
              )}
            >
              <span
                aria-hidden="true"
                className={cx(
                  "mt-2xs flex size-[0.875rem] shrink-0 items-center justify-center",
                  "rounded-chip border",
                  option.isCurrent
                    ? "border-border-accent"
                    : "border-border-default",
                )}
              >
                {option.isCurrent ? (
                  <span className="size-[7px] bg-[var(--surface-accent)]" />
                ) : null}
              </span>
              <span>{option.label}</span>
            </Link>
          </li>
        ))}
      </ul>
    </div>
  );
}

/** The rail the facet groups sit in - sticky from the large breakpoint up. */
export function FacetRail({
  label,
  children,
}: {
  label: string;
  children: ReactNode;
}) {
  return (
    <aside
      aria-label={label}
      className={cx(
        "flex min-w-0 flex-col gap-lg lg:sticky lg:top-[var(--layout-sticky-top)]",
        "lg:max-w-[20rem] lg:self-start",
      )}
    >
      {children}
    </aside>
  );
}

/* ---------------------------------------------------------------------------
   SEARCH
   ------------------------------------------------------------------------ */

/**
 * A standalone search box - the hub's hero field and the resources rail both
 * use it. `keep` preserves the filters that are not the query, so searching
 * inside a filtered view does not silently clear the filters.
 */
export function SearchForm({
  action,
  label,
  placeholder,
  defaultValue,
  submitLabel,
  keep,
  name = "q",
  className,
}: {
  action: string;
  label: string;
  placeholder: string;
  defaultValue: string;
  submitLabel: string;
  keep?: readonly (readonly [string, string])[];
  name?: string;
  className?: string;
}) {
  return (
    <Form
      method="get"
      action={action}
      role="search"
      aria-label={label}
      className={cx("flex flex-wrap items-end gap-sm", className)}
    >
      {(keep ?? []).map(([key, value]) => (
        <input key={key} type="hidden" name={key} value={value} />
      ))}

      <Input
        type="search"
        name={name}
        label={label}
        placeholder={placeholder}
        defaultValue={defaultValue}
        className="min-w-0 flex-1"
      />

      <Button type="submit" variant="primary" size="md">
        {submitLabel}
      </Button>
    </Form>
  );
}

/* ---------------------------------------------------------------------------
   CALLOUT BAND
   ----------------------------------------------------------------------------
   The wide panel the drafts close a page with: a raised surface, an accent
   rule down the inline-start edge, a headline and one action. Used by the
   newsroom ("Are you a partner organisation?") and by the knowledge hub's
   repository note.

   It is NOT Card.CTA: that card is a filled green field for a primary action,
   and the drafts draw this one as a quiet panel on the page surface.
   ------------------------------------------------------------------------ */

export function CalloutBand({
  eyebrow,
  headline,
  body,
  action,
  headlineAs = "h2",
}: {
  headline: string;
  action: { readonly to: string; readonly label: string };
  eyebrow?: string;
  body?: string;
  headlineAs?: "h2" | "h3";
}) {
  const Headline = headlineAs;

  return (
    <section
      className={cx(
        "sh-reveal flex flex-col gap-lg rounded-card border border-border-subtle",
        "border-s-4 border-s-[var(--border-accent)] bg-surface-raised p-xl",
        "md:flex-row md:items-center md:justify-between",
      )}
    >
      <div className="flex max-w-[var(--layout-prose-max)] flex-col gap-xs">
        {eyebrow ? (
          <p className="label-md uppercase text-text-accent">{eyebrow}</p>
        ) : null}
        <Headline className="heading-h3 text-text-primary">{headline}</Headline>
        {body ? <p className="body-md text-text-secondary">{body}</p> : null}
      </div>

      <Button
        as={Link}
        to={action.to}
        variant="primary"
        size="md"
        iconEnd={<ArrowIcon />}
        className="shrink-0"
      >
        {action.label}
      </Button>
    </section>
  );
}

/* ---------------------------------------------------------------------------
   FORM CONTROLS
   ----------------------------------------------------------------------------
   `FilterSelect` above is a GET filter: it has no error state and its id is
   namespaced for the filter bar. A select that is part of a POSTed form needs
   both, so it gets its own control here rather than a second set of props on
   the filter one.

   It is native on purpose, for the same reasons `FilterSelect` is: correct in
   every browser with a keyboard and a screen reader, and usable before - and
   without - hydration. The visual treatment is the field treatment from
   ~/components/ui/Input, spent through the same tier-2 tokens.
   ------------------------------------------------------------------------ */

export function FormSelect({
  id,
  name,
  label,
  hint,
  error,
  defaultValue,
  options,
  required = false,
  className,
}: {
  id: string;
  name: string;
  label: string;
  options: readonly SelectOption[];
  hint?: string;
  error?: string;
  defaultValue?: string;
  required?: boolean;
  className?: string;
}) {
  const hintId = `${id}-hint`;
  const errorId = `${id}-error`;
  const describedBy =
    [hint ? hintId : null, error ? errorId : null].filter(Boolean).join(" ") ||
    undefined;

  return (
    <div className={cx("sh-field flex min-w-0 flex-col gap-xs", className)}>
      <label className="sh-field__label label-md" htmlFor={id}>
        {label}
        {required ? (
          <span className="sh-field__required ms-2xs" aria-hidden="true">
            *
          </span>
        ) : null}
      </label>

      <select
        id={id}
        name={name}
        defaultValue={defaultValue}
        required={required}
        aria-invalid={error ? true : undefined}
        aria-describedby={describedBy}
        className={cx(
          "body-md w-full rounded-[var(--radius-control)] border bg-field-bg",
          "border-field-border px-md py-sm text-[var(--field-fg)]",
          "transition-colors duration-[var(--motion-duration-fast)]",
          "ease-[var(--motion-ease-standard)] hover:border-[var(--field-border-hover)]",
        )}
      >
        {options.map((option) => (
          <option key={option.value} value={option.value}>
            {option.label}
          </option>
        ))}
      </select>

      {hint ? (
        <p id={hintId} className="sh-field__hint body-sm">
          {hint}
        </p>
      ) : null}

      {error ? (
        <p id={errorId} role="alert" className="sh-field__error body-sm">
          {error}
        </p>
      ) : null}
    </div>
  );
}