const apiKeyStorageKey = 'ctv-api-key';

function getStorage(): Storage | undefined {
  if (typeof window === 'undefined') {
    return undefined;
  }

  try {
    return window.localStorage;
  } catch {
    return undefined;
  }
}

export function getStoredApiKey(): string | null {
  const value = getStorage()?.getItem(apiKeyStorageKey);
  return value && value.trim().length > 0 ? value : null;
}

export function setStoredApiKey(apiKey: string): void {
  const trimmed = apiKey.trim();

  if (trimmed.length === 0) {
    clearStoredApiKey();
    return;
  }

  getStorage()?.setItem(apiKeyStorageKey, trimmed);
}

export function clearStoredApiKey(): void {
  getStorage()?.removeItem(apiKeyStorageKey);
}