import { ApiError } from "./api";

type ValidationIssue = { path?: Array<string | number>; message?: string };

export function apiFieldErrors(caught: unknown): Record<string, string> {
  if (!(caught instanceof ApiError) || !Array.isArray(caught.details)) return {};
  const errors: Record<string, string> = {};
  for (const issue of caught.details as ValidationIssue[]) {
    const field = issue.path?.[0];
    if (typeof field === "string" && issue.message && !errors[field]) errors[field] = issue.message;
  }
  return errors;
}