// node modules/test/test-download-url.js
// Regression guard for the download/share URL space (2026-10-21, tightened 2026-10-24).
// The URL must follow the WebDAV config (the logged-in user's space), NOT the page path —
// /spaces/newos4/ is the app, not the user.
//
// 2026-10-24 (T6): this test used to re-implement both helpers locally, so it passed 4/4
// whatever filemgr.js did. It now requires the shipped functions.
const { fmDetectSpaceName, fmExtractSpaceNameFromUrl, fmBuildShareUrl } =
  require('../ext/filemgr.js');

const cases = [
  { page: '/spaces/newos4/', cfg: 'https://webx11.duckdns.org/spaces/agando/', want: 'agando' },
  { page: '/spaces/newos4/', cfg: 'https://webx11.duckdns.org/spaces/mindtech/', want: 'mindtech' },
  { page: '/spaces/agando/', cfg: 'https://webx11.duckdns.org/spaces/agando/', want: 'agando' },
  { page: '/spaces/newos4/', cfg: '', want: 'newos4' }, // no config → fall back to the page space
];

let bad = 0;
for (const c of cases) {
  const got = fmExtractSpaceNameFromUrl(c.cfg) || fmDetectSpaceName(c.page);
  const ok = got === c.want;
  if (!ok) bad++;
  console.log((ok ? 'PASS' : 'FAIL'), c.page, 'cfg=' + (c.cfg || '(none)'), '→', got, '(want', c.want + ')');
}

// T5: an unresolved space must produce null — never a "spaces//" URL.
{
  const got = fmBuildShareUrl('', 'docs/x.md');
  const ok = got === null;
  if (!ok) bad++;
  console.log((ok ? 'PASS' : 'FAIL'), 'empty space →', got, '(want null)');
}

// Paths with spaces must be percent-encoded per segment.
{
  const got = fmBuildShareUrl('newos4', 'docs/a file/b&c.md');
  const want = 'https://webx11.duckdns.org/spaces/newos4/docs/a%20file/b%26c.md';
  const ok = got === want;
  if (!ok) bad++;
  console.log((ok ? 'PASS' : 'FAIL'), 'encoded path →', got);
}

// Belt and braces: no case may ever produce a double slash after /spaces/.
for (const c of cases) {
  const url = fmBuildShareUrl(fmExtractSpaceNameFromUrl(c.cfg) || fmDetectSpaceName(c.page), 'docs/x.md');
  if (url && url.indexOf('/spaces//') !== -1) {
    bad++;
    console.log('FAIL double space slash →', url);
  }
}

console.log(bad ? `\n${bad} FAILED` : `\n${cases.length + 2} PASS`);
process.exit(bad ? 1 : 0);