/* api.js — HTTP-утилиты */

function authHeaders() {
  return {
    'X-Auth-Token': localStorage.getItem('auth_token') || '',
    'X-Auth-Env': localStorage.getItem('auth_env') || 'test'
  };
}

async function getJSON(url) {
  const r = await fetch(url, { headers: authHeaders() });
  if (r.status === 401) { doLogout(); throw new Error('Сессия истекла'); }
  if (!r.ok) {
    let msg = '';
    try {
      const body = await r.json();
      msg = body.error || JSON.stringify(body);
    } catch (_) {
      msg = await r.text();
    }
    throw new Error(url + ': ' + r.status + (msg ? ' - ' + msg : ''));
  }
  return r.json();
}

async function requestJSON(url, method, body) {
  const r = await fetch(url, {
    method: method,
    headers: Object.assign({ 'Content-Type': 'application/json' }, authHeaders()),
    body: body ? JSON.stringify(body) : undefined
  });
  if (r.status === 401) { doLogout(); throw new Error('Сессия истекла'); }
  let data = {};
  try { data = await r.json(); } catch (_) { }
  if (!r.ok) {
    throw new Error(data.error || (url + ': ' + r.status));
  }
  return data;
}