import Foundation

import UIKit
import SnapKit

protocol Spinnable where Self: UIViewController {
    func showActivityIndicator()
    func hideActivityIndicator()
}

extension Spinnable {
    func showActivityIndicator() {
        let activityIndicator = UIActivityIndicatorView()
        self.view.addSubview(activityIndicator)
        activityIndicator.snp.makeConstraints { (make) in
            make.centerX.centerY.equalToSuperview()
            make.width.height.equalTo(50)
        }
    }

    func hideActivityIndicator() {
        for view in self.view.subviews {
            guard let activityIndicator = view as? UIActivityIndicatorView else {
                continue
            }
            activityIndicator.removeFromSuperview()
        }
    }
}