import Foundation

class Push: NSObject {

    class private var keyAppDeviceToken: String {
        return "kAppDeviceToken"
    }

    class func registerOnAPNS() {
        let app = UIApplication.sharedApplication()
        if (app.respondsToSelector(Selector("registerUserNotificationSettings:"))) {
            let settings = UIUserNotificationSettings(forTypes: (.Badge | .Sound | .Alert), categories: nil)
            app.registerUserNotificationSettings(settings)
            app.registerForRemoteNotifications()
        } else {
            app.registerForRemoteNotificationTypes(.Badge | .Sound | .Alert)
        }
    }

    class func saveDeviceToken(deviceToken: String?) {
        let ud = NSUserDefaults.standardUserDefaults()
        ud.setObject(deviceToken, forKey: self.keyAppDeviceToken)
        ud.synchronize()
    }

    class func deviceToken() -> String? {
        return NSUserDefaults.standardUserDefaults().objectForKey(self.keyAppDeviceToken) as? String
    }

}