extension UILabel {

    convenience init(text: String? = nil,
                     font: UIFont = .systemFont(ofSize: UIFont.labelFontSize),
                     textColor: UIColor = .black,
                     textAlignment: NSTextAlignment = .left,
                     numberOfLines: Int = 1,
                     backgroundColor: UIColor = .clear) {
        self.init()
        self.text = text
        self.font = font
        self.textColor = textColor
        self.textAlignment = textAlignment
        self.numberOfLines = numberOfLines
        self.backgroundColor = backgroundColor
    }
}


extension UIViewController {
    func configureLargeNavigationItemAppearance(for navigationItem: UINavigationItem) -> UINavigationItem {
        navigationItem.leftBarButtonItem = nil

        let label = UILabel(
            text: title,
            font: UIFont.systemFont(ofSize: 30, weight: .bold),
            textColor: .white,
            textAlignment: .left,
            numberOfLines: 1,
            backgroundColor: .clear
        )
        let view = UIView(frame: CGRect(x: 0, y: 0, width: navigationController?.navigationBar.frame.width ?? 0, height: navigationController?.navigationBar.frame.height ?? 0))
        view.addSubview(label)
        label.frame = CGRect(x: 5, y: 0, width: navigationController?.navigationBar.frame.width ?? 0, height: navigationController?.navigationBar.frame.height ?? 0)
        navigationItem.titleView = view
        return navigationItem
    }

    func configureModalNavigationItem(for navigationItem: UINavigationItem) -> UINavigationItem {
        let label = UILabel(
            text: title,
            font: UIFont.systemFont(ofSize: 20, weight: .semibold),
            textColor: .white,
            textAlignment: .center,
            numberOfLines: 1,
            backgroundColor: .clear
        )
        navigationItem.titleView = label

        navigationItem.leftBarButtonItem = UIBarButtonItem(image: #imageLiteral(resourceName: "close"), target: self, action: #selector(dismissAnimated))

        return navigationItem
    }

    func configureDefaultNavigationItem(for navigationItem: UINavigationItem) -> UINavigationItem {
        let label = UILabel(
            text: title,
            font: UIFont.systemFont(ofSize: 20, weight: .semibold),
            textColor: .white,
            textAlignment: .center,
            numberOfLines: 1,
            backgroundColor: .clear
        )
        navigationItem.titleView = label

        navigationItem.leftBarButtonItem = UIBarButtonItem(image: #imageLiteral(resourceName: "back-button"), target: self, action: #selector(popViewControllerAnimated))

        return navigationItem
    }

    @objc
    fileprivate func dismissAnimated() {
        dismiss(animated: true, completion: nil)
    }

    @objc
    fileprivate func popViewControllerAnimated() {
        navigationController?.popViewController(animated: true)
    }
}

extension UIBarButtonItem {

    /// Создает UIBarButtonItem с заданным цветом кнопки назад и действием по нажатию
    convenience init(image: UIImage, target: Any?, action: Selector, for controlEvents: UIControlEvents = .touchUpInside) {
        let button = UIButton(frame: CGRect(x: 0, y: 0, width: backButtonSize.width, height: backButtonSize.height))
        button.setImage(image, for: .normal)
        button.contentEdgeInsets = UIEdgeInsets(top: 0, left: leftInset, bottom: 0, right: 0)
        button.addTarget(target, action: action, for: controlEvents)
        button.isExclusiveTouch = true
        button.accessibilityIdentifier = UIBarButtonItem.backButtonAccessibilityIdentifier()

        self.init(customView: button)

        button.accessibilityIdentifier = UIBarButtonItem.backButtonAccessibilityIdentifier()
    }

    static func backButtonAccessibilityIdentifier() -> String {
        return "backButton"
    }

}