/**
 * The footer's link columns.
 *
 * Data rather than markup, and in `src/data/` beside `legal.mjs` and `collection.mjs`, for
 * one reason: the links shipped wrong. All three entries under "Documentation" pointed at
 * `/docs/`, so the column rendered three different labels that went to the same page — and
 * every check passed, because each href resolved perfectly well. `checkLinks.mjs` asks
 * whether a link is broken; nothing asked whether a link goes where its label says.
 *
 * `test/footer.test.mjs` asks that now, which it can only do because the columns are
 * importable. That is the whole reason this file exists.
 *
 * The two Project links are brand-supplied (§7, D13), so this is a function of the rendered
 * brand rather than a constant — the mounted `brand.json` decides them, and `/beta` renders
 * per request, so they cannot be baked at build time.
 */

/** Documentation sections a footer link may point into, and where each one starts. */
export const docsEntryPoints = {
  'getting-started': '/docs/getting-started/requirements/',
  administration: '/docs/administration/configuration/',
  modules: '/docs/modules/building-a-module/',
};

export function footerColumns(brand) {
  return [
    {
      heading: 'Product',
      links: [
        { href: '/features/', label: 'Features' },
        { href: '/architecture/', label: 'Architecture' },
        { href: '/modules/', label: 'Modules' },
        { href: '/app/', label: 'Android app' },
      ],
    },
    {
      // Each of these lands INSIDE the section it names. The docs home — "What is Runic
      // Gateway?", the first page of Getting started — is the header's `Docs` link, so a
      // footer entry pointing there as well would be a fourth way to the same page rather
      // than a way into the section.
      heading: 'Documentation',
      links: [
        { href: docsEntryPoints['getting-started'], label: 'Getting started' },
        { href: docsEntryPoints.administration, label: 'Administration' },
        { href: docsEntryPoints.modules, label: 'Building a module' },
      ],
    },
    {
      heading: 'Project',
      links: [
        { href: brand.giteaOrg, label: 'Source' },
        { href: brand.discordInvite, label: 'Discord' },
        { href: '/community/', label: 'Community' },
      ],
    },
  ];
}