export type JsonStorage = Pick<Storage, 'getItem' | 'setItem' | 'removeItem'>;

export function isRecord(value: unknown): value is Record<string, unknown> {
  return Boolean(value) && typeof value === 'object' && !Array.isArray(value);
}

export function getJsonStorage(storage?: JsonStorage | null) {
  if (storage !== undefined) {
    return storage;
  }

  if (typeof window === 'undefined') {
    return null;
  }

  return window.localStorage;
}

export function readStoredJson<T>({
  key,
  parse,
  storage,
}: {
  key: string;
  parse: (value: unknown) => T | null;
  storage?: JsonStorage | null;
}) {
  const resolvedStorage = getJsonStorage(storage);
  if (!resolvedStorage) {
    return null;
  }

  const raw = resolvedStorage.getItem(key);
  if (!raw) {
    return null;
  }

  try {
    return parse(JSON.parse(raw));
  } catch {
    return null;
  }
}

export function writeStoredJson({
  key,
  value,
  storage,
}: {
  key: string;
  value: unknown;
  storage?: JsonStorage | null;
}) {
  const resolvedStorage = getJsonStorage(storage);
  if (!resolvedStorage) {
    return false;
  }

  resolvedStorage.setItem(key, JSON.stringify(value));
  return true;
}

export function removeStoredJson(key: string, storage?: JsonStorage | null) {
  getJsonStorage(storage)?.removeItem(key);
}