(*****************************************************************************)
(*                                                                           *)
(* Open Source License                                                       *)
(* Copyright (c) 2023 Nomadic Labs <contact@nomadic-labs.com>                *)
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type t = {
  network : string;
  snapshot : string option;
  protocol : Protocol.t;
  data_dir : string option;
  client_dir : string option;
}

let get_testnet_config path =
  let conf = JSON.parse_file path in
  let snapshot = JSON.(conf |-> "snapshot" |> as_string_opt) in
  let network = JSON.(conf |-> "network" |> as_string) in
  let data_dir = JSON.(conf |-> "data-dir" |> as_string_opt) in
  let client_dir = JSON.(conf |-> "client-dir" |> as_string_opt) in
  let protocol =
    let tags =
      List.map (fun proto -> (proto, Protocol.tag proto)) Protocol.all
    in
    let protocol_tag = JSON.(conf |-> "protocol" |> as_string) in
    match List.find_opt (fun (_proto, tag) -> tag = protocol_tag) tags with
    | Some (proto, _tag) -> proto
    | None -> failwith (protocol_tag ^ " is not a valid protocol name")
  in
  {snapshot; network; protocol; data_dir; client_dir}