import { test } from 'node:test';
import assert from 'node:assert/strict';
import {
  getLotusRoomPermalink,
  getLotusSpacePermalink,
  lotusPermalinkToMatrixTo,
  parseLotusPermalink,
} from './lotus-permalink';

const BASE = 'https://chat.lotusguild.org/';

test('builds room / event / space permalinks with encoded ids and viaServers', () => {
  assert.equal(
    getLotusRoomPermalink(BASE, '!abc:matrix.lotusguild.org', '$ev1', ['matrix.lotusguild.org']),
    'https://chat.lotusguild.org/home/!abc%3Amatrix.lotusguild.org/%24ev1?viaServers=matrix.lotusguild.org',
  );
  assert.equal(
    getLotusRoomPermalink(BASE, '#general:matrix.lotusguild.org'),
    'https://chat.lotusguild.org/home/%23general%3Amatrix.lotusguild.org',
  );
  assert.equal(
    getLotusSpacePermalink('https://chat.lotusguild.org', '#guild:matrix.lotusguild.org'),
    'https://chat.lotusguild.org/%23guild%3Amatrix.lotusguild.org',
  );
});

test('parses its own output back (encoded and decoded forms)', () => {
  const link = getLotusRoomPermalink(BASE, '!abc:lotus', '$ev1', ['a.org', 'b.org']);
  assert.deepEqual(parseLotusPermalink(BASE, link), {
    roomIdOrAlias: '!abc:lotus',
    eventId: '$ev1',
    viaServers: ['a.org', 'b.org'],
  });
  assert.deepEqual(parseLotusPermalink(BASE, 'https://chat.lotusguild.org/home/!abc:lotus/$ev1'), {
    roomIdOrAlias: '!abc:lotus',
    eventId: '$ev1',
    viaServers: undefined,
  });
  assert.deepEqual(parseLotusPermalink(BASE, 'https://chat.lotusguild.org/direct/!dm:lotus/'), {
    roomIdOrAlias: '!dm:lotus',
    viaServers: undefined,
  });
});

test('space routes: lobby → the space, nested room → the room', () => {
  assert.deepEqual(parseLotusPermalink(BASE, 'https://chat.lotusguild.org/%23guild%3Alotus/'), {
    roomIdOrAlias: '#guild:lotus',
    viaServers: undefined,
  });
  assert.deepEqual(
    parseLotusPermalink(BASE, 'https://chat.lotusguild.org/%23guild%3Alotus/!room%3Alotus/%24e'),
    { roomIdOrAlias: '!room:lotus', eventId: '$e', viaServers: undefined },
  );
});

test('accepts the matrix.to Cinny adapter form (?via=a,b)', () => {
  assert.deepEqual(
    parseLotusPermalink(BASE, 'https://chat.lotusguild.org/home/!r:x?via=a.org,b.org'),
    {
      roomIdOrAlias: '!r:x',
      viaServers: ['a.org', 'b.org'],
    },
  );
});

test('rejects other origins, non-room routes and malformed ids', () => {
  assert.equal(parseLotusPermalink(BASE, 'https://app.cinny.in/home/!r:x'), undefined);
  assert.equal(parseLotusPermalink(BASE, 'https://chat.lotusguild.org/home/settings'), undefined);
  assert.equal(parseLotusPermalink(BASE, 'https://chat.lotusguild.org/explore/lotus'), undefined);
  assert.equal(
    parseLotusPermalink(BASE, 'https://chat.lotusguild.org/home/!r:x/notanevent'),
    undefined,
  );
  assert.equal(
    parseLotusPermalink(BASE, 'https://chat.lotusguild.org.evil.com/home/!r:x'),
    undefined,
  );
  assert.equal(parseLotusPermalink(BASE, 'https://chat.lotusguild.org'), undefined);
});

test('rewrites to the matrix.to form the existing mention pipeline understands', () => {
  assert.equal(
    lotusPermalinkToMatrixTo(BASE, 'https://chat.lotusguild.org/home/!r:x/$e?viaServers=a.org'),
    'https://matrix.to/#/!r:x/$e?via=a.org',
  );
  assert.equal(
    lotusPermalinkToMatrixTo(BASE, 'https://chat.lotusguild.org/%23guild%3Ax/'),
    'https://matrix.to/#/#guild:x',
  );
  assert.equal(lotusPermalinkToMatrixTo(BASE, 'https://example.org/home/!r:x'), undefined);
});