import "../../_dnt.polyfills.js";
import { SerdeEnum } from "./utils.js"

/** A type of supported crypto. */
export type StorageKind = SerdeEnum<{
  /**
   * Persistent storage is non-revertible and not fork-aware. It means that any value
   * set by the offchain worker triggered at block `N(hash1)` is persisted even
   * if that block is reverted as non-canonical and is available for the worker
   * that is re-run at block `N(hash2)`.
   * This storage can be used by offchain workers to handle forks
   * and coordinate offchain workers running on different forks.
   */
  PERSISTENT: void
  /**
   * Local storage is revertible and fork-aware. It means that any value
   * set by the offchain worker triggered at block `N(hash1)` is reverted
   * if that block is reverted as non-canonical and is NOT available for the worker
   * that is re-run at block `N(hash2)`.
   */
  LOCAL: void
}>

// https://github.com/paritytech/substrate/blob/7d233c2/client/rpc-api/src/offchain/mod.rs#L28
export type OffchainCalls = {
  /** Set offchain local storage under given key and prefix. */
  offchain_localStorageSet(kind: StorageKind, key: string, value: string): null
  /** Get offchain local storage under given key and prefix. */
  offchain_localStorageGet(kind: StorageKind, key: string): string | null
}