const BASE = '/api';

async function req(path, opts = {}) {
  const res = await fetch(`${BASE}${path}`, {
    headers: { 'content-type': 'application/json' },
    ...opts,
  });
  if (!res.ok) {
    const text = await res.text().catch(() => '');
    throw new Error(`HTTP ${res.status} ${path}: ${text}`);
  }
  return res.json();
}

export const api = {
  health: () => req('/health'),
  listGoals: () => req('/goals'),
  listCompletionsSince: (since = 0) =>
    req(`/completions?since=${encodeURIComponent(since)}`),
  putCompletion: (payload) =>
    req('/completions', { method: 'PUT', body: JSON.stringify(payload) }),
};