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(* Open Source License                                                       *)
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module Get_delegates = struct
  open Tezos_protocol_018_Proxford
  open Protocol

  type context = Alpha_context.t

  type contract = Alpha_context.Contract.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 Contract = struct
    open Alpha_context.Contract

    let fold context ~init ~f =
      let open Lwt_syntax in
      let* l = list context in
      Lwt_list.fold_left_s f init l

    let balance ctxt t = get_balance ctxt t |> Lwt.map Environment.wrap_tzresult

    let frozen_bonds ctxt t =
      get_frozen_bonds ctxt t |> Lwt.map Environment.wrap_tzresult

    let get_staked_balance ctxt t =
      For_RPC.get_staked_balance ctxt t |> Lwt.map Environment.wrap_tzresult

    let get_unstaked_frozen_balance ctxt t =
      For_RPC.get_unstaked_frozen_balance ctxt t
      |> Lwt.map Environment.wrap_tzresult

    let get_unstaked_finalizable_balance ctxt t =
      For_RPC.get_unstaked_finalizable_balance ctxt t
      |> Lwt.map Environment.wrap_tzresult

    let get_full_balance ctxt t =
      For_RPC.get_full_balance ctxt t |> Lwt.map Environment.wrap_tzresult

    let contract_address contract = Alpha_context.Contract.to_b58check contract

    let total_supply ctxt =
      Alpha_context.Contract.get_total_supply ctxt
      |> Lwt.map Environment.wrap_tzresult
  end

  module Commitment = struct
    include Alpha_context.Commitment

    type t = Blinded_public_key_hash.t

    (* Use Obj.magic to access commitments from raw context without modifying Protocol 018 *)
    let fold ctxt ~order ~init ~f =
      let context : Tezos_protocol_018_Proxford.Protocol.Raw_context.t =
        Obj.magic ctxt
      in
      Tezos_protocol_018_Proxford.Protocol.Storage.Commitments.fold
        context
        ~order
        ~init
        ~f:(fun c t acc -> f c (Tez_repr.to_mutez t) acc)
  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 =
      For_RPC.staking_balance ctxt pkh |> Lwt.map Environment.wrap_tzresult

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

    let unstaked_frozen_deposits ctxt pkh =
      Alpha_context.Unstaked_frozen_deposits.balance
        ctxt
        pkh
        Alpha_context.Level.(current ctxt).cycle
      |> 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)