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module Get_delegates = struct
  open Tezos_protocol_017_PtNairob
  open Protocol

  type context = Alpha_context.t

  let hash = hash

  module Tez = struct
    include Alpha_context.Tez

    let ( +? ) a b = Environment.wrap_tzresult (a +? b)
  end

  module Signature = struct
    include Tezos_crypto.Signature.V1
    module To_latest = Tezos_crypto.Signature.Of_V1
  end

  module Delegate = struct
    open Alpha_context.Delegate

    let fold ctxt ~order ~init ~f = fold ctxt ~order ~init ~f

    let pubkey ctxt pkh =
      Alpha_context.Contract.get_manager_key ctxt pkh
      |> Lwt.map Environment.wrap_tzresult

    let staking_balance ctxt pkh =
      staking_balance ctxt pkh |> Lwt.map Environment.wrap_tzresult

    let deactivated ctxt pkh =
      deactivated ctxt pkh |> Lwt.map Environment.wrap_tzresult
  end

  let prepare_context ctxt ~level ~predecessor_timestamp ~timestamp =
    let open Lwt_result_syntax in
    let+ ctxt, _, _ =
      Alpha_context.prepare ctxt ~level ~predecessor_timestamp ~timestamp
      |> Lwt.map Environment.wrap_tzresult
    in
    ctxt
end

let () = Known_protocols.register (module Get_delegates)