import { getBearerAuthHeaders } from './authHeaders';

export type ChatTurnStatus = {
  sessionId: string;
  clientTurnId: string;
  status: string;
  userMessageId?: number;
  assistantMessageId?: number;
  attemptCount?: number;
};

export async function fetchChatTurnStatus(
  sessionId: string,
  clientTurnId: string,
  signal?: AbortSignal,
): Promise<ChatTurnStatus | null> {
  const url = `/api/v1/chat/turns/${encodeURIComponent(clientTurnId)}?session_id=${encodeURIComponent(sessionId)}`;
  const res = await fetch(url, { signal, headers: getBearerAuthHeaders() });
  if (res.status === 404) return null;
  if (!res.ok) {
    throw new Error(`fetchChatTurnStatus failed: HTTP ${res.status}`);
  }
  const raw = await res.json();
  return {
    sessionId: raw.session_id,
    clientTurnId: raw.client_turn_id,
    status: raw.status,
    userMessageId: raw.user_message_id,
    assistantMessageId: raw.assistant_message_id,
    attemptCount: raw.attempt_count,
  };
}