Purchase Unit Mockup

protocol Patchable: Encodable {
  func getPatchValue(referenceId: String?) -> String
}

@objc(PPCIntent)
enum Intent: Int, Patchable {
  case capture
  case authorize

  var rawText: String {
    switch self {
    case .capture:
      return "CAPTURE"
    case .authorize:
      return "AUTHORIZE"
    }

    func getPatchValue(referenceId: String?) -> String{
      return "purchaseUnit[]/asdfjadsf;adsf"
    }
  }

  func encode(to encoder: Encoder) throws {
    var container = encoder.singleValueContainer()
    try container.encode(rawText)
  }
}

@objc(PPCAmountObj)
class AmountObj: NSObject, Patchable, Encodable {
  var currencyCode: String
  var value: String

  init(cc: String, value: String) {
    currency_code = cc
    self.value = value
  }
}

func patch(op: String, value: Patchable) {
  let patchString = value.getPatchValue(referenceId: nil)

  
}

public class PatchOrderRequest: NSObject, Encodable {
  private enum CodingKeys: String, CodingKey {
    case op
    case path
    case value
    case from
  }

  let op: PatchOp
  let path: String?
  let value: Patchable?
  let from: String?

  public init(
    op: PatchOp,
    path: String? = nil,
    value: Patchable? = nil,
    from: String? = nil
  ) {
    self.op = op
    self.path = path
    self.value = value
    self.from = from
  }
  deinit { }
}

public func patch<Value: Encodable>(op: Operation, value: Value)

func patch(operation: Operation, value: String)