import type { LucideIcon } from 'lucide-react';
import { Home, Info, Layers, Images, Handshake, Sparkles, Wrench, Settings, Mail, Cog, FolderOpen } from 'lucide-react';

/**
 * The sections of the fofos admin, in nav order.
 *
 * ── The order is the client's site, not the database's ──
 *
 * It follows the sitemap: the pages someone edits most, first. Site settings, Messages and
 * Administration sit at the bottom because they are not pages — the site's settings, an inbox, and the
 * plugin's own machinery.
 *
 * ── `site` and `administration` are different things ──
 *
 * "Site settings" is the CLIENT's — partners, social links, contact details, all of it public copy that
 * whoever edits the site edits. "Administration" is OFFICER's end: where fofos is, how to reach it, and
 * whatever else this plugin needs to know to do its job. One is content, the other is plumbing, and the
 * people who touch them are not the same people. Nothing in Administration ever appears on the site.
 *
 * ── `built` ──
 *
 * The panels arrive one section at a time, each verified against the live site before the next is
 * started. A section that is not built yet says so, plainly, with what it will do — which is a better
 * answer than a nav that hides most of itself and gives no sense of what is coming.
 *
 * It mirrors `built` in fofos's own `src/apps/web/site-map.ts`, and for the same reason: one list, so
 * the nav and what actually renders cannot disagree.
 */

export type SectionKey =
  | 'administration'
  | 'media'
  | 'messages'
  | 'site'
  | 'about'
  | 'home'
  | 'gallery'
  | 'drops'
  | 'collabs'
  | 'collections'
  | 'services';

export type Section = {
  key: SectionKey;
  label: string;
  icon: LucideIcon;
  /** One line under the label in the nav — what this section is, for somebody who has not opened it. */
  hint: string;
  /** The fofos path this reads, relative to the plugin's mount. Null when nothing is built. */
  path: string | null;
  built: boolean;
  /**
   * Pinned to the FOOT of the nav rather than sitting in the list.
   *
   * A flag rather than the nav hard-coding a key, because "which sections are the site's and which are
   * the plugin's own" is a fact about the section. It is also why this stays in one array: `sectionFor`
   * and `isSectionKey` have to resolve every key, and a second exported list would be a second place to
   * forget one.
   */
  pinned?: boolean;
};

export const SECTIONS: Section[] = [
  {
    key: 'home',
    label: 'Home',
    icon: Home,
    hint: 'The hero, the intro, and the gallery',
    path: '/fofos-admin/home',
    built: false,
  },
  {
    key: 'about',
    label: 'About Us',
    icon: Info,
    hint: 'The header photograph and the copy',
    path: '/fofos-admin/about',
    built: false,
  },
  {
    key: 'collections',
    label: 'Collections',
    icon: Layers,
    hint: 'Collections, and the items in them',
    path: '/fofos-admin/collections',
    built: false,
  },
  {
    key: 'gallery',
    label: 'Gallery',
    icon: Images,
    hint: 'Standalone pieces',
    path: '/fofos-admin/gallery',
    built: false,
  },
  {
    key: 'collabs',
    label: 'Collabs',
    icon: Handshake,
    hint: 'Projects with other people',
    path: '/fofos-admin/collabs',
    built: false,
  },
  {
    key: 'drops',
    label: 'Drops',
    icon: Sparkles,
    hint: 'Releases',
    path: '/fofos-admin/drops',
    built: false,
  },
  {
    key: 'services',
    label: 'Services',
    icon: Wrench,
    hint: 'A fixed tree — the words, not the shape',
    path: '/fofos-admin/services',
    built: false,
  },
  {
    key: 'site',
    label: 'Site settings',
    icon: Settings,
    hint: 'Partners, social links, contact details',
    path: '/fofos-admin/site',
    built: false,
  },
  {
    key: 'messages',
    label: 'Messages',
    icon: Mail,
    hint: 'What people sent through the contact form',
    path: '/fofos-admin/messages',
    built: true,
  },
  {
    /*
      The site's own media, browsed in place.

      Above Administration and below the pages, because it is neither: the pages are the site's CONTENT
      and Administration is this plugin's machinery, while this is the raw material both draw on. It is
      also the section somebody uses most often once the site exists, which is the other reason it sits
      where a hand falls rather than at the bottom.

      `path: null` — it reads no fofos API. It embeds the platform's own file browser, confined to the
      originals folder under the root location.
    */
    key: 'media',
    label: 'Media',
    icon: FolderOpen,
    hint: 'Photos and video the site is built from',
    path: null,
    built: true,
  },
  {
    /*
      Last, and `path: null` — it reads nothing from fofos. Every other section is a window onto the
      client's site; this one is the window onto the connection itself, which is why it keeps working
      when fofos is unreachable and the others do not.
    */
    key: 'administration',
    label: 'Administration',
    icon: Cog,
    hint: 'Where fofos is, and the token to reach it',
    path: null,
    built: true,
    pinned: true,
  },
];

/** Where the detail panel goes when the URL says nothing, or says something it does not recognise. */
export const DEFAULT_SECTION: SectionKey = 'messages';

export const isSectionKey = (value: string | null): value is SectionKey =>
  SECTIONS.some((section) => section.key === value);

export const sectionFor = (key: SectionKey): Section =>
  SECTIONS.find((section) => section.key === key) ?? SECTIONS[SECTIONS.length - 1]!;