/**
 * Interface for storage backends used by the Gemini wallet SDK
 */
export interface IStorage {
  /**
   * Store a serializable object in storage
   * @param key Storage key
   * @param item Object to store
   */
  storeObject<T>(key: string, item: T): Promise<void>;

  /**
   * Load a serializable object from storage
   * @param key Storage key
   * @param fallback Default value if key doesn't exist
   * @returns The stored object or fallback
   */
  loadObject<T>(key: string, fallback: T): Promise<T>;

  /**
   * Store a string value in storage
   * @param key Storage key
   * @param value String value to store
   */
  setItem(key: string, value: string): Promise<void>;

  /**
   * Retrieve a string value from storage
   * @param key Storage key
   * @returns The stored string or null if not found
   */
  getItem(key: string): Promise<string | null>;

  /**
   * Remove an item from storage
   * @param key Storage key
   */
  removeItem(key: string): Promise<void>;

  /**
   * Remove multiple items from storage
   * @param keys Array of storage keys to remove
   */
  removeItems(keys: string[]): Promise<void>;
}

// Export storage keys
export const STORAGE_ETH_ACCOUNTS_KEY = "eth-accounts";
export const STORAGE_ETH_ACTIVE_CHAIN_KEY = "eth-active-chain";
export const STORAGE_PASSKEY_CREDENTIAL_KEY = "passkey-credential";
export const STORAGE_PRESERVED_PASSKEY_CREDENTIALS_KEY = "preserved-passkey-credentials";
export const STORAGE_SMART_ACCOUNT_KEY = "smart-account";
export const STORAGE_SETTINGS_KEY = "settings";
export const STORAGE_WC_REQUESTS_KEY = "wc-requests";
export const STORAGE_CALL_BATCHES_KEY = "call-batches";