/**
 * api.js — Обёртка над fetch с обработкой ошибок и авторизации
 */

import { showAuthOverlay } from "./auth.js";

export async function readJsonResponse(response) {
  const text = await response.text();
  if (!text) return null;
  try {
    return JSON.parse(text);
  } catch {
    return { ok: false, error: text };
  }
}

export async function apiFetch(url, options = {}) {
  const response = await fetch(url, options);

  if (response.status === 401) {
    showAuthOverlay();
    const data = await readJsonResponse(response);
    const error = new Error(data?.error || "Требуется авторизация.");
    error.status = 401;
    throw error;
  }

  const data = await readJsonResponse(response);

  if (!response.ok || (data && data.ok === false)) {
    const errorMsg = data?.error || `Ошибка сервера (${response.status})`;
    const error = new Error(errorMsg);
    error.status = response.status;
    error.details = data?.details;
    error.requestId = data?.requestId;
    throw error;
  }

  return data;
}