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(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2022 Marigold <contact@marigold.dev>                        *)
(* Copyright (c) 2022 Nomadic Labs <contact@nomadic-labs.com>                *)
(* Copyright (c) 2022 Oxhead Alpha <info@oxhead-alpha.com>                   *)
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type error += Tx_rollup_negative_input_size

(** A generic helper to hash an input *)
val hash :
  hash_f:(bytes list -> 'b) ->
  Raw_context.t ->
  'a Data_encoding.t ->
  'a ->
  (Raw_context.t * 'b) tzresult

(** [hash_cost size] returns the cost of gas for hashing a buffer of
    [size] bytes.

    Raises [Tx_rollup_negative_input_size] iff [size < 0]. *)
val hash_cost : int -> Gas_limit_repr.cost tzresult

val consume_check_path_inbox_cost : Raw_context.t -> Raw_context.t tzresult

val consume_check_path_commitment_cost : Raw_context.t -> Raw_context.t tzresult

(** [consume_add_message_cost ctxt] consume the gas cost of adding a
   message to an inbox and return the new context. *)
val consume_add_message_cost : Raw_context.t -> Raw_context.t tzresult

val consume_compact_commitment_cost :
  Raw_context.t -> int -> Raw_context.t tzresult