// Saves a size mode on the logged-in user's account (needs the redmine_tonalmine plugin).
// No size resets the account to the default appearance.
export async function setSize(page, size) {
  const status = await page.evaluate(async (body) => {
    const headers = { 'Content-Type': 'application/json', 'X-Requested-With': 'XMLHttpRequest',
      'X-CSRF-Token': document.querySelector('meta[name="csrf-token"]').content };
    return (await fetch('/tonalmine/appearance', { method: 'PUT', headers, body: JSON.stringify(body) })).status;
  }, size ? { size } : {});
  if (status !== 204) throw new Error(`could not save size ${size ?? 'default'} (HTTP ${status})`);
}