import { readFileSync } from 'node:fs';
import { join, resolve } from 'node:path';
import { Glob } from 'bun';

/*
  Which settings sections actually exist, read from the screens that declare them.

  Separated from `docs-check.ts` because it is the only check that parses source rather than importing it —
  the sections are JSX-adjacent object literals inside components, so importing them would drag React and a
  browser environment into a CLI. A regex over `BASE_PATH` and `key:` is the honest tool for that, and it is
  narrow enough to be obvious when it breaks.
*/

const ROOT = resolve(import.meta.dir, '..');
const SETTINGS_DIR = join(ROOT, 'src/apps/officer-web/Screens/Dashboard/Settings');

/** `/settings/profile` + `change-password` → `/settings/profile/change-password`. */
export async function declaredSettingsPaths(): Promise<Set<string>> {
  const paths = new Set<string>();
  const glob = new Glob('**/*.tsx');
  for await (const file of glob.scan({ cwd: SETTINGS_DIR, absolute: true })) {
    const body = readFileSync(file, 'utf-8');
    const base = /BASE_PATH\s*=\s*'([^']+)'/.exec(body)?.[1];
    if (!base) continue;
    paths.add(base);
    for (const m of body.matchAll(/key:\s*'([^']+)'/g)) paths.add(`${base}/${m[1]}`);
  }
  return paths;
}

/**
 * Settings routes Spotlight offers, and which of them nothing declares.
 *
 * Parsed rather than imported for the same reason: `useSpotlightItems` is a hook and pulls in the dock,
 * lucide and React.
 */
export async function SPOTLIGHT_SETTINGS_PATHS(): Promise<{ offered: string[]; missing: string[] }> {
  const file = join(ROOT, 'src/apps/officer-web/Screens/Dashboard/Layout/Spotlight/useSpotlightItems.ts');
  const body = readFileSync(file, 'utf-8');
  const offered = [...body.matchAll(/to:\s*'(\/settings\/[^']+)'/g)].map((m) => m[1]!);
  const declared = await declaredSettingsPaths();
  return { offered, missing: offered.filter((p) => !declared.has(p)) };
}