import { logDebug, logError, logWarn } from "./logger.js";

export async function api(path, options = {}) {
  const controller = new AbortController();
  const timeout = setTimeout(() => controller.abort(), 12000);
  try {
    const headers = new Headers(options.headers || {});
    if (!(options.body instanceof FormData) && !headers.has("content-type")) headers.set("content-type", "application/json");
    const started = performance.now();
    logDebug("api.request", { method: options.method || "GET", path });
    const response = await fetch(path, { ...options, headers, signal: controller.signal });
    const durationMs = Math.round(performance.now() - started);
    logDebug("api.response", { method: options.method || "GET", path, status: response.status, durationMs });
    const contentType = response.headers.get("content-type") || "";
    const data = contentType.includes("application/json") ? await response.json().catch(() => ({})) : {};
    if (!response.ok) {
      const defaults = { 400: "Invalid request.", 401: "Authentication required.", 403: "Access denied.", 404: "The requested resource was not found.", 405: "This operation is not allowed.", 409: "The requested change conflicts with existing data.", 413: "The uploaded data is too large.", 429: "Too many requests. Try again later.", 500: "Server error. Try again later.", 503: "Service temporarily unavailable." };
      const requestError = new Error(data.error || defaults[response.status] || `Request failed (${response.status}).`);
      requestError.status = response.status;
      logWarn("api.failed", { method: options.method || "GET", path, status: response.status, message: requestError.message });
      throw requestError;
    }
    return data;
  } catch (error) {
    if (error.name === "AbortError") { logWarn("api.timeout", { method: options.method || "GET", path }); throw new Error("Timed out"); }
    logError("api.network_error", error, { method: options.method || "GET", path });
    throw error;
  } finally { clearTimeout(timeout); }
}