Computed properties

getters.swift

 var isDelivered: Bool {
        switch self {
        case .preparePizza(id: _, size: _, type: _, doughType: _):
            return false
        case .addedExtras(id: _, extras: _):
            return false
        case .bakedPizza(id: _):
            return false
        case .deliveredPizza(id: _):
            return true
        }
    }
    
    var isBaked: Bool {
        switch self {
        case .preparePizza(id: _, size: _, type: _, doughType: _):
            return false
        case .addedExtras(id: _, extras: _):
            return false
        case .bakedPizza(id: _):
            return true
        case .deliveredPizza(id: _):
            return false
        }
    }

    var currentState: String {
        switch self {
        case .preparePizza(id: let id, size: _, type: _, doughType: _):
            return "Pizza \(id) prepared"
        case .addedExtras(id: let id, extras: _):
            return "Added extras to pizza \(id)"
        case .bakedPizza(id: let id):
            return "Baked pizza \(id)"
        case .deliveredPizza(id: let id):
            return "Delivered pizza \(id)"
        }
    }