@IBOutlet weak var datePicker: JBDatePickerView!

import JBDatePicker

class ViewController: UIViewController, JBDatePickerViewDelegate {
 
}

override func viewDidLoad() {
    super.viewDidLoad()

    datePicker.delegate = self
}

// MARK: - JBDatePickerViewDelegate implementation

func didSelectDay(_ dayView: JBDatePickerDayView) {
    print("date selected: \(String(describing: dayView.date))")
}

class ViewController: UIViewController, JBDatePickerViewDelegate {

var datePicker: JBDatePickerView!

override func viewDidLoad() {
    super.viewDidLoad()

    let frameForDatePicker = CGRect(x: 0, y: 20, width: view.bounds.width, height: 250)
    datePicker = JBDatePickerView(frame: frameForDatePicker)
    view.addSubview(datePicker)
    datePicker.delegate = self  
}


// MARK: - JBDatePickerViewDelegate

func didSelectDay(_ dayView: JBDatePickerDayView) {
    print("date selected: \(String(describing: dayView.date))")
}

/**
Is called when the user swiped (or manually moved) to another month
- parameter monthView: the monthView that is now 'on screen'
*/
func didPresentOtherMonth(_ monthView: JBDatePickerMonthView) {
    print(“month selected: \(monthView.monthDescription)”)
}

/**
Is called to check if any particular date is selectable by the picker
- parameter date: the date to be checked on selectability 
*/
func shouldAllowSelectionOfDay(_ date: Date?) -> Bool {

    //this code example disables selection for dates older then today
    guard let date = date else {return true}
    let comparison = NSCalendar.current.compare(date, to: Date().stripped()!, toGranularity: .day)

    if comparison == .orderedAscending {
        return false
    }
    return true
}

///Sets the day that determines which month is shown on initial load. Defaults to the current date.
var dateToShow: Date { return a Date object}

///Sets the first day of the week. Defaults to the local preference.
var firstWeekDay: JBWeekDay { return .wednesday }

///Determines if a month should also show the dates of the previous and next month. Defaults to true.
var shouldShowMonthOutDates: Bool { return false }

///Determines if the weekday symbols and the month description should follow available localizations. Defaults to false. 
///This means that the weekday symbols and the month description will be in the same language as the device language. 
///If you want it to conform to the localization of your app, return true here. 
///If you return true and your app is not localized, the weekday symbols and the month description will be in the development language.
var shouldLocalize: Bool { return true }

///Determines the height ratio of the weekDaysView compared to the total height. Defaults to 0.1 (10%).
var weekDaysViewHeightRatio: CGFloat { return 0.2 }

/**
Customizes the weekday symbols. Defaults to 'shortStandaloneWeekdaySymbols', but any Calendar API value can be used. It is also possible to return a custom string array. 
- parameter calendar: calendar instance used by the calendar view
*/
func weekdaySymbols(for calendar: Calendar) -> [String]

///Determines the shape that is used to indicate a selected date. Defaults to a circular shape. 
var selectionShape: JBSelectionShape { return .roundedRect }

///Font to be used in dayLabel. Defaults to systemFont of a regular size.
var fontForDayLabel: JBFont { return JBFont(name: "Avenir", size: .medium) }

///Font to be used in the bar which shows the 'mon' to 'sun' labels (weekdaysView). Defaults to systemFont of a regular size.
var fontForWeekDaysViewText: JBFont { return JBFont(name: "Avenir", size: .medium) }

///Color of any date label text that falls within the presented month
var colorForDayLabelInMonth: UIColor { return UIColor of choice }

///Color of any date label text that falls out of the presented month and is part of the next or previous (but not presented) month
var colorForDayLabelOutOfMonth: UIColor { return UIColor of choice }

///Color of any date label text that falls within the presented month but is unavailable because it's selection is now allowed
var colorForUnavaibleDay: UIColor { return UIColor of choice }

///Color of the 'today' date label text
var colorForCurrentDay: UIColor { return UIColor of choice }

///Color of any label text that is selected
var colorForSelelectedDayLabel: UIColor { return UIColor of choice }

///Color of the bar which shows the 'mon' to 'sun' labels. Defaults to green. 
var colorForWeekDaysViewBackground: UIColor { return UIColor of choice }

///Color of the labels in the WeekdaysView bar that say 'mon' to 'sun'. Defaults to white.
var colorForWeekDaysViewText: UIColor { return UIColor of choice }

///Color of the selection circle for dates that aren't today
var colorForSelectionCircleForOtherDate: UIColor { return UIColor of choice }

///Color of the selection circle for today
var colorForSelectionCircleForToday: UIColor { return UIColor of choice }

///Color of the semi selected selection circle (that shows on a long press)
var colorForSemiSelectedSelectionCircle: UIColor { return UIColor of choice }