malice

import assert from 'node:assert/strict';

import { test } from 'node:test';

import { moveBefore, pinnedFirst, sortSpaces } from '../src/lib/rail-order.ts';

const space = (room_id: string, space_order: string | null) => ({ room_id, space_order });

test('orders spaces the MSC3230 way', () => {

  const spaces = [space('!d', null), space('!c', 'b'), space('!b', null), space('!a', 'a'), space('!e', 'b')];

  assert.deepEqual(sortSpaces(spaces, null).map((s) => s.room_id), ['!a', '!c', '!e', '!b', '!d']);

});

test('a local override wins until the server catches up', () => {

  const spaces = [space('!a', 'a'), space('!b', 'b'), space('!c', null)];

  assert.deepEqual(sortSpaces(spaces, ['!c', '!a', '!b']).map((s) => s.room_id), ['!c', '!a', '!b']);

});

test('moves an id before another or to the end', () => {

  assert.deepEqual(moveBefore(['a', 'b', 'c', 'd'], 'd', 'b'), ['a', 'd', 'b', 'c']);

  assert.deepEqual(moveBefore(['a', 'b', 'c'], 'a', null), ['b', 'c', 'a']);

  assert.deepEqual(moveBefore(['a', 'b'], 'a', 'zz'), ['a', 'b']);

});

test('pinned rooms come first and keep their relative order', () => {

  const rooms = [

    { id: 1, favourite: false },

    { id: 2, favourite: true },

    { id: 3, favourite: false },

    { id: 4, favourite: true }

  ];

  assert.deepEqual(pinnedFirst(rooms).map((r) => r.id), [2, 4, 1, 3]);

});