var user:UserDetails?
let userRegister = UserInfo()


var user_name:String?
var first_name:String?
var last_name:String?
var ph_no:String?
var e_mail:String?
var pass_word:String?

var activeField: UITextField?

@IBOutlet var Username: UITextField!

@IBOutlet var Firstname: UITextField!
@IBOutlet var Lastname: UITextField!
@IBOutlet var email: UITextField!
@IBOutlet var phNo: UITextField!
@IBOutlet var password: UITextField!


var rootRef: FIRDatabaseReference! {
    return FIRDatabase.database().reference()
}




override func viewDidAppear(animated: Bool) {
    super.viewDidAppear(true)


    let userRef = FIRDatabase.database().reference().child("users")
    userRef.observeEventType(.Value, withBlock: { (snapshot)  in

        for userInfo in snapshot.children {
            self.user = UserDetails(snapshot: userInfo as! FIRDataSnapshot)
            print(self.user)
        }
        if let user = self.user{
            self.Username.text = user.username
            self.Firstname.text = user.firstname
            self.Lastname.text = user.lastname
            self.email.text = user.email
             self.phNo.text = user.phno
        }
    })

      self.navigationController?.popViewControllerAnimated(true)

}
@IBAction func reset(sender: AnyObject) {


    let userRef = FIRDatabase.database().reference().child("users")

    if Username.text == ""{
        Username.text = "enter title"
    }else{
        user_name = Username.text
    }

    if Firstname.text == ""{
        Firstname.text = "Firstname Missing"
    }else{
        first_name = Firstname.text
    }

    if Lastname.text == ""{
        Lastname.text = "Lastname Missing"
    }else{
        last_name = Lastname.text
    }


    if phNo.text == ""{
        phNo.text = "Phno Missing"
    }else{
        ph_no = phNo.text
    }
    if email.text == ""{
        email.text = "email Missing"
    }else{
 if let user = FIRAuth.auth()?.currentUser {

    user.updateEmail(email.text!, completion: { (error) in

        if let error = error{
            print(error.localizedDescription)
        }else{


            let alertView = UIAlertView(title: "Update Email", message: "email Updated", delegate: self, cancelButtonTitle: "Ok")
            alertView.show()
            }
         })
    self.e_mail = self.email.text
    print(self.e_mail)
   }
    }

    let updatenote = UserDetails(username: user_name!, firstname: first_name!, lastname: last_name!, email: e_mail!, phno: ph_no!)



    print(updatenote)


    let key = user!.ref!.key
    print(key)

    let updateRef = rootRef.child("/users/(key)")


    updateRef.updateChildValues(updatenote.toAnyObject())
    navigationController?.popViewControllerAnimated(true)


    }