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

type command = full Clic.command
type network = [ `Mainnet | `Alphanet | `Zeronet | `Sandbox ]

exception Version_not_found

let versions = Protocol_hash.Table.create 7

let get_versions () =
  Protocol_hash.Table.fold
    (fun k c acc -> (k, c) :: acc)
    versions
    []

let register name commands =
  let previous =
    try Protocol_hash.Table.find versions name
    with Not_found -> (fun (_network : network option) -> ([] : command list)) in
  Protocol_hash.Table.replace versions name
    (fun (network : network option) -> (commands network @ previous network))

let commands_for_version version =
  try Protocol_hash.Table.find versions version
  with Not_found -> raise Version_not_found