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(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2018 Dynamic Ledger Solutions, Inc. <contact@tezos.com>     *)
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let list ctxt = RPC_context.make_call RPC_service.error_service ctxt () () ()

let encoding = RPC_service.error_encoding

let opt_encoding = RPC_service.error_opt_encoding

(* FIXME: https://gitlab.com/tezos/tezos/-/issues/1753

   the error should not be in the error monad. *)
type Error_monad.error += Bad_version of {given : int; supported : int list}

let () =
  let open Error_monad in
  register_error_kind
    `Permanent
    ~id:"RPC_error.bad_version"
    ~title:"Unknown RPC version"
    ~description:"The RPC was called with a bad version number."
    ~pp:(fun ppf (given, supported) ->
      Format.fprintf
        ppf
        "@[<v 2>The RPC was called with version number '%d' which is not \
         supported. Accepted version numbers are '%a'.@]@."
        given
        (Format.pp_print_list
           ~pp_sep:(fun fmt () -> Format.fprintf fmt ", ")
           Format.pp_print_int)
        supported)
    Data_encoding.(
      obj2 (req "given" int8) (req "supported" (list Data_encoding.int8)))
    (function
      | Bad_version {given; supported} -> Some (given, supported) | _ -> None)
    (fun (given, supported) -> Bad_version {given; supported})

let bad_version ~given ~supported : RPC_service.error =
  [Bad_version {given; supported}]