//
//  DatePickerPopoverViewController.swift
//  VDS
//
//  Created by Matt Bruce on 5/14/24.
//

import Foundation
import UIKit

protocol DatePickerViewControllerDelegate: NSObject {
    func didSelectDate(_ controller: DatePicker.DatePickerViewController, date: Date)
}

extension DatePicker {
    class DatePickerViewController: UIViewController {
        private var padding: CGFloat = 15
        private var topPadding: CGFloat { 10 + padding }
        private var calendarModel: CalendarModel
        private let picker = CalendarBase()
        weak var delegate: DatePickerViewControllerDelegate?
        
        init(_ calendarModel: CalendarModel, delegate: DatePickerViewControllerDelegate?) {
            self.delegate = delegate
            self.calendarModel = calendarModel
            super.init(nibName: nil, bundle: nil)
            self.picker.onChange = { [weak self] control in
                guard let self else { return }
                self.delegate?.didSelectDate(self, date: control.selectedDate)
            }
        }
        
        var selectedDate: Date = Date() {
            didSet {
                picker.selectedDate = selectedDate
            }
        }
        
        required init?(coder: NSCoder) {
            fatalError("init(coder:) has not been implemented")
        }
        
        override func viewDidLoad() {
            super.viewDidLoad()
            view.addSubview(picker)
            picker.surface = calendarModel.surface
            picker.hideContainerBorder = calendarModel.hideContainerBorder
            picker.hideCurrentDateIndicator = calendarModel.hideCurrentDateIndicator
            picker.indicators = calendarModel.indicators
            picker.activeDates = calendarModel.activeDates
            picker.inactiveDates = calendarModel.inactiveDates
            picker.selectedDate = calendarModel.selectedDate
            picker.minDate = calendarModel.minDate
            picker.maxDate = calendarModel.maxDate
            picker.pinToSuperView(.init(top: topPadding, left: padding, bottom: padding, right: padding))
            view.backgroundColor = picker.backgroundColor
        }
        
        override var preferredContentSize: CGSize {
            get {
                var size = picker.frame.size
                size.height += 40
                size.width += 30
                return size
            }
            set {
                super.preferredContentSize = newValue
            }
        }
    }
}