import { toast } from "sonner";

/** Fire-and-forget report of a user-visible error to the per-user error log.
 * Listeners (the notification bell) are only notified once the entry is
 * durably stored, so the badge never counts entries the user cannot see. */

const listeners = new Set<() => void>();

export function subscribeErrorLogged(listener: () => void): () => void {
  listeners.add(listener);
  return () => {
    listeners.delete(listener);
  };
}

export function reportError(
  source: string,
  message: string,
  details?: string
): void {
  void fetch("/api/error-logs", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify({
      source,
      message,
      ...(details ? { details } : {}),
    }),
  })
    .then((response) => {
      if (!response.ok) return;
      for (const listener of listeners) listener();
    })
    .catch(() => {});
}

/** toast.error + error-log report. Use for operational failures; pure form
 * validation hints should keep using toast.error directly. */
export function errorToast(
  source: string,
  message: string,
  details?: string
): void {
  toast.error(message);
  reportError(source, message, details);
}