/*

    Copyright (C) 2015 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    A view controller that demonstrates how to use UIDatePicker.

*/

import UIKit

class DatePickerController: UIViewController {

    // MARK: Properties

    @IBOutlet weak var datePicker: UIDatePicker!

    @IBOutlet weak var dateLabel: UILabel!

    /// A date formatter to format the `date` property of `datePicker`.

    lazy var dateFormatter: NSDateFormatter = {

        let dateFormatter = NSDateFormatter()

        dateFormatter.dateStyle = .MediumStyle

        dateFormatter.timeStyle = .ShortStyle

        return dateFormatter

    }()

    // MARK: View Life Cycle

    override func viewDidLoad() {

        super.viewDidLoad()

        configureDatePicker()

    }

    // MARK: Configuration

    func configureDatePicker() {

        datePicker.datePickerMode = .DateAndTime

        // Set min/max date for the date picker.

        // As an example we will limit the date between now and 7 days from now.

        let now = NSDate()

        datePicker.minimumDate = now

        let currentCalendar = NSCalendar.currentCalendar()

        let dateComponents = NSDateComponents()

        dateComponents.day = 7

        let sevenDaysFromNow = currentCalendar.dateByAddingComponents(dateComponents, toDate: now, options: nil)

        datePicker.maximumDate = sevenDaysFromNow

        datePicker.minuteInterval = 2

        datePicker.addTarget(self, action: "updateDatePickerLabel", forControlEvents: .ValueChanged)

        updateDatePickerLabel()

    }

    // MARK: Actions

    func updateDatePickerLabel() {

        dateLabel.text = dateFormatter.stringFromDate(datePicker.date)

    }

}