import { KeyValueStorage, MemoryStorage, ScopedStorage } from "./basic";
import { BrowserLocalStorage } from "./browser";
import { NodeDirectoryStorage } from "./node";

/**
 * Base type for storage usage
 */
export type Storage = KeyValueStorage

/**
 * Get the best "local" storage available
 */
export function getLocalStorage(appname: string): Storage {
  try {
    return new ScopedStorage(new BrowserLocalStorage(), appname);
  } catch {
    try {
      return new NodeDirectoryStorage(appname);
    } catch {
      console.warn("No persistent storage available, using in-memory volatile storage");
      return new MemoryStorage();
    }
  }
}

/**
 * Get a in-memory volatile storage
 */
export function getMemoryStorage(): Storage {
  return new MemoryStorage();
}