Source file frozen_deposits_storage.ml

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let get ctxt delegate =
  let open Lwt_result_syntax in
  let+ frozen_deposits_opt =
    Storage.Contract.Frozen_deposits.find ctxt delegate
  in
  Option.value ~default:Deposits_repr.zero frozen_deposits_opt

let update_balance ctxt delegate f amount =
  let open Lwt_result_syntax in
  let delegate_contract = Contract_repr.Implicit delegate in
  let* frozen_deposits = get ctxt delegate_contract in
  let*? new_amount = f frozen_deposits.current_amount amount in
  let*! ctxt =
    Storage.Contract.Frozen_deposits.add
      ctxt
      delegate_contract
      {frozen_deposits with current_amount = new_amount}
  in
  return ctxt

let credit_only_call_from_token ctxt staker amount =
  let open Lwt_result_syntax in
  let delegate = Stake_repr.staker_delegate staker in
  let* ctxt = update_balance ctxt delegate Tez_repr.( +? ) amount in
  Stake_storage.add_frozen_stake ctxt staker amount

let spend_only_call_from_token ctxt staker amount =
  let open Lwt_result_syntax in
  let delegate = Stake_repr.staker_delegate staker in
  let* ctxt = update_balance ctxt delegate Tez_repr.( -? ) amount in
  Stake_storage.remove_frozen_stake ctxt staker amount

let update_initial_amount ctxt delegate_contract deposits_cap =
  let open Lwt_result_syntax in
  let* frozen_deposits = get ctxt delegate_contract in
  let*! ctxt =
    Storage.Contract.Frozen_deposits.add
      ctxt
      delegate_contract
      {frozen_deposits with initial_amount = deposits_cap}
  in
  return ctxt