spb/os-vault Public

1import Foundation23public struct FeeAmount: Equatable, Hashable {4    public struct OtherFee: Equatable, Hashable {5        public init(amount: Double, unit: String) {6            self.amount = amount7            self.unit = unit8        }910        public var amount: Double11        public var unit: String12    }1314    public init(transaction: UInt64, accountBalances: UInt64, deposit: UInt64 = 0, others: [OtherFee]? = nil) {15        self.transaction = transaction16        self.accountBalances = accountBalances17        self.others = others18        self.deposit = deposit19    }2021    public var transaction: UInt6422    public var accountBalances: UInt6423    public var deposit: UInt6424    public var others: [OtherFee]?25    public var total: UInt64 {26        transaction + accountBalances + deposit27    }2829    public static var zero: Self {30        .init(transaction: 0, accountBalances: 0)31    }32}3334public extension FeeAmount {35    static func + (lhs: FeeAmount, rhs: FeeAmount) -> FeeAmount {36        return .init(37            transaction: lhs.transaction + rhs.transaction,38            accountBalances: lhs.accountBalances + rhs.accountBalances,39            deposit: lhs.deposit + rhs.deposit,40            others: lhs.others == nil && rhs.others == nil ? nil : ((lhs.others ?? []) + (rhs.others ?? []))41        )42    }43}44