(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
(*                                                                           *)
(* Permission is hereby granted, free of charge, to any person obtaining a   *)
(* copy of this software and associated documentation files (the "Software"),*)
(* to deal in the Software without restriction, including without limitation *)
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(* Software is furnished to do so, subject to the following conditions:      *)
(*                                                                           *)
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(* in all copies or substantial portions of the Software.                    *)
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(* DEALINGS IN THE SOFTWARE.                                                 *)
(*                                                                           *)
(*****************************************************************************)

module type Authenticated_request = sig
  type t = {
    pkh : Tezos_crypto.Signature.Public_key_hash.t;
    data : Bytes.t;
    signature : Tezos_crypto.Signature.t option;
  }

  val to_sign :
    pkh:Tezos_crypto.Signature.Public_key_hash.t -> data:Bytes.t -> Bytes.t

  val encoding : t Data_encoding.t
end

module Sign : sig
  module Request : Authenticated_request

  module Response : sig
    type t = Tezos_crypto.Signature.t

    val encoding : t Data_encoding.t
  end
end

module Deterministic_nonce : sig
  module Request : Authenticated_request

  module Response : sig
    type t = Bytes.t

    val encoding : t Data_encoding.t
  end
end

module Deterministic_nonce_hash : sig
  module Request : Authenticated_request

  module Response : sig
    type t = Bytes.t

    val encoding : t Data_encoding.t
  end
end

module Supports_deterministic_nonces : sig
  module Request : sig
    type t = Tezos_crypto.Signature.Public_key_hash.t

    val encoding : t Data_encoding.t
  end

  module Response : sig
    type t = bool

    val encoding : t Data_encoding.t
  end
end

module Public_key : sig
  module Request : sig
    type t = Tezos_crypto.Signature.Public_key_hash.t

    val encoding : t Data_encoding.t
  end

  module Response : sig
    type t = Tezos_crypto.Signature.Public_key.t

    val encoding : t Data_encoding.t
  end
end

module Authorized_keys : sig
  module Response : sig
    type t =
      | No_authentication
      | Authorized_keys of Tezos_crypto.Signature.Public_key_hash.t list

    val encoding : t Data_encoding.t
  end
end

module Request : sig
  type t =
    | Sign of Sign.Request.t
    | Public_key of Public_key.Request.t
    | Authorized_keys
    | Deterministic_nonce of Deterministic_nonce.Request.t
    | Deterministic_nonce_hash of Deterministic_nonce_hash.Request.t
    | Supports_deterministic_nonces of Supports_deterministic_nonces.Request.t

  val encoding : t Data_encoding.t
end