import Foundation

//Little more type safe version of storage
class DeviceStorage {

    //Bool functions
    static func getBool(forKey key: String) -> Bool? {
        if UserDefaults.standard.object(forKey: key) == nil {
            // Если такого ключа в базе нет - возрващаем nil ! а не false.
            return nil
        }
        return UserDefaults.standard.bool(forKey: key)
    }

    static func setBool(_ value: Bool, forKey key: String) {
        UserDefaults.standard.set(value, forKey: key)
    }

    //String functions
    static func getString(forKey key: String) -> String? {
        return UserDefaults.standard.string(forKey: key)
    }

    static func setString(_ value: String, forKey key: String) {
        return UserDefaults.standard.set(value, forKey: key)
    }

    static func delete(key: String) {
        UserDefaults.standard.removeObject(forKey: key)
    }
}