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(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
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open Protocol
open Alpha_context

type block_info = {
  hash : Block_hash.t;
  chain_id : Chain_id.t;
  predecessor : Block_hash.t;
  fitness : Bytes.t list;
  timestamp : Time.Protocol.t;
  protocol : Protocol_hash.t;
  next_protocol : Protocol_hash.t;
  proto_level : int;
  level : Raw_level.t;
  context : Context_hash.t;
}

val info :
  #Protocol_client_context.rpc_context ->
  ?chain:Chain_services.chain ->
  Block_services.block ->
  block_info tzresult Lwt.t

val monitor_valid_blocks :
  #Protocol_client_context.rpc_context ->
  ?chains:Chain_services.chain list ->
  ?protocols:Protocol_hash.t list ->
  next_protocols:Protocol_hash.t list option ->
  unit ->
  block_info tzresult Lwt_stream.t tzresult Lwt.t

val monitor_heads :
  #Protocol_client_context.rpc_context ->
  next_protocols:Protocol_hash.t list option ->
  Chain_services.chain ->
  block_info tzresult Lwt_stream.t tzresult Lwt.t

val blocks_from_current_cycle :
  #Protocol_client_context.rpc_context ->
  ?chain:Chain_services.chain ->
  Block_services.block ->
  ?offset:int32 ->
  unit ->
  Block_hash.t list tzresult Lwt.t