async function request<T>(url: string, init?: RequestInit): Promise<T> {
  const res = await fetch(url, init);
  if (!res.ok) {
    const body = await res.json().catch(() => ({})) as { error?: string };
    throw new Error(body.error ?? `HTTP ${res.status}`);
  }
  return res.json() as Promise<T>;
}

export const api = {
  get: <T>(url: string) =>
    request<T>(url),

  post: <T>(url: string, body: unknown) =>
    request<T>(url, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(body),
    }),

  patch: <T>(url: string, body: unknown) =>
    request<T>(url, {
      method: "PATCH",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(body),
    }),

  delete: (url: string) =>
    request<void>(url, { method: "DELETE" }),
};