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(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
(* Copyright (c) 2018 Nomadic Labs, <contact@nomadic-labs.com>               *)
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(* copy of this software and associated documentation files (the "Software"),*)
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(** Tezos Shell - Main entry point of the validation scheduler. *)

type t

val create:
  State.t ->
  Distributed_db.t ->
  Peer_validator.limits ->
  Block_validator.limits ->
  Block_validator.validator_kind ->
  Prevalidator.limits ->
  Chain_validator.limits ->
  t tzresult Lwt.t
val shutdown: t -> unit Lwt.t

(** Start the validation scheduler of a given chain. *)
val activate:
  t ->
  ?max_child_ttl:int ->
  start_prevalidator:bool ->
  State.Chain.t -> Chain_validator.t tzresult Lwt.t

val get: t -> Chain_id.t -> Chain_validator.t tzresult
val get_exn: t -> Chain_id.t -> Chain_validator.t

(** Force the validation of a block. *)
val validate_block:
  t ->
  ?force:bool ->
  ?chain_id:Chain_id.t ->
  MBytes.t -> Operation.t list list ->
  (Block_hash.t * State.Block.t option tzresult Lwt.t) tzresult Lwt.t

(** Monitor all the valid block (for all activate chains). *)
val watcher: t -> State.Block.t Lwt_stream.t * Lwt_watcher.stopper

val inject_operation:
  t ->
  ?chain_id:Chain_id.t ->
  Operation.t -> unit tzresult Lwt.t

val distributed_db: t -> Distributed_db.t