import { test } from 'node:test';
import assert from 'node:assert/strict';
import dayjs from 'dayjs';
import { messageAriaLabel } from './a11y';
import { timeDayMonthYear, timeHourMinute } from './time';

test('messageAriaLabel composes sender, date and time (24h)', () => {
  const ts = dayjs('2026-07-01T14:30:00').valueOf();
  assert.equal(
    messageAriaLabel('Alice', ts, true),
    `Alice, ${timeDayMonthYear(ts)} ${timeHourMinute(ts, true)}`,
  );
});

test('messageAriaLabel honours the 12-hour clock preference', () => {
  const ts = dayjs('2026-07-01T14:30:00').valueOf();
  assert.equal(
    messageAriaLabel('Bob', ts, false),
    `Bob, ${timeDayMonthYear(ts)} ${timeHourMinute(ts, false)}`,
  );
});

test('messageAriaLabel keeps the sender name verbatim as plain text', () => {
  const ts = dayjs('2026-07-01T09:05:00').valueOf();
  const label = messageAriaLabel('@user:example.org', ts, true);
  assert.ok(label.startsWith('@user:example.org, '));
  assert.ok(!label.includes('<'));
});