Encoding and decoding enum of type TimeInterval

Question

Given is the following enum:

    enum TimerType: TimeInterval, Codable {

        case timer, `break`

        var rawValue: TimeInterval {
            switch self {
            case .timer: return 60 * 25
            case .break: return 60 * 5
            }
        }

        enum CodingKeys: String, CodingKey {
            case timer = "timer"
            case `break` = "break"
        }
    }

I want save its values in structs that are using this enum to json like this:

{
  "type": "timer"
}

But what it actually does is

{
  "type": 1500
}

While I can see that it actually saves the Double value (as it's of type TimerInterval which is a typealias of Double), I cannot figure out how to encode and decode with their names. Any hints?

Answer 1

Since you have the timing values hardcoded, I would suggest switching to a String-based enum:

enum TimerType: String, Codable {

    case timer, `break`

    var timerValue: TimeInterval {
        switch self {
        case .timer: return 60 * 25
        case .break: return 60 * 5
        }
    }
}