(**************************************************************************)
(*                                                                        *)
(*    Copyright (c) 2014 - 2016.                                          *)
(*    Dynamic Ledger Solutions, Inc. <contact@tezos.com>                  *)
(*                                                                        *)
(*    All rights reserved. No warranty, explicit or implicit, provided.   *)
(*                                                                        *)
(**************************************************************************)

open Tezos_hash

type error +=
  | Too_late_revelation
  | Too_early_revelation
  | Previously_revealed_nonce
  | Unexpected_nonce

type t = Seed_repr.nonce
type nonce = t
val encoding: nonce Data_encoding.t

val record_hash:
  Storage.t ->
  Ed25519.Public_key_hash.t -> Tez_repr.t ->
  Nonce_hash.t -> Storage.t tzresult Lwt.t

val reveal:
  Storage.t -> Level_repr.t -> nonce ->
  (Storage.t * Ed25519.Public_key_hash.t * Tez_repr.t) tzresult Lwt.t

type status =
  | Unrevealed of {
      nonce_hash: Tezos_hash.Nonce_hash.t ;
      delegate_to_reward: Ed25519.Public_key_hash.t ;
      reward_amount: Tez_repr.t ;
    }
  | Revealed of nonce

val get: Storage.t -> Level_repr.t -> status tzresult Lwt.t

val of_bytes: MBytes.t -> nonce tzresult
val hash: nonce -> Nonce_hash.t
val check_hash: nonce -> Nonce_hash.t -> bool