import UIKit

class addEventViewController: UIViewController, UITextFieldDelegate, UIPickerViewDataSource, UIPickerViewDelegate {


@IBOutlet weak var addEventNameInput: UITextField!

@IBOutlet weak var addEventDateInput: UITextField!

@IBOutlet weak var addEventCategoryInput: UITextField!

var addEventCategories = ["Født", "Startede børnehave", "Startede uddannelse", "Startede job", "Flyttede hjemmefra", "Startede romantisk forhold", "Startede forhold"]
var categoryPicker = UIPickerView()

let datePicker = UIDatePicker()

func textFieldDidBeginEditing(_ textField: UITextField) {
    addEventDateInput.inputView = datePicker
    datePicker.datePickerMode = .date
    datePicker.addTarget(self, action: #selector(datePickerChanged), for: .valueChanged)
}


func datePickerChanged(sender: UIDatePicker) {
    let formatter = DateFormatter()
    formatter.dateStyle = .full
    formatter.timeStyle = .none

    addEventDateInput.text = formatter.string(from: sender.date)

}

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.

    addEventNameInput.delegate = self
    addEventDateInput.delegate = self

    categoryPicker.delegate = self
    categoryPicker.dataSource = self
    addEventCategoryInput.inputView = categoryPicker


}

func textFieldShouldReturn(_ textField: UITextField) -> Bool {
    textField.resignFirstResponder()
    return true
}

// returns the number of 'columns' to display.
func numberOfComponents(in pickerView: UIPickerView) -> Int {
    return 1
}


// returns the # of rows in each component..
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
    return addEventCategories.count
}

func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
    addEventCategoryInput.text = addEventCategories[row]
}

func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
    return addEventCategories[row]
}




@IBAction func addEventButtonPressed(_ sender: Any) {



    if addEventNameInput.text == "" {
        } else {

    let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext

    let newevent = MyEvents(context: context)
    newevent.nameOfevent = addEventNameInput.text!
    newevent.categoryOfevent = addEventCategoryInput.text!

    // Save data to coredata

   (UIApplication.shared.delegate as! AppDelegate).saveContext()

    // Pop back to events list
   navigationController!.popViewController(animated: true)
    }

}

}