import UIKit

class ExampleAlertView: UIView {


    @IBOutlet weak var wechatPayButton: UIButton!
    @IBOutlet weak var alipayButton: UIButton!

    @IBOutlet weak var amountTextField: UITextField!

    @IBOutlet weak var infoLabel: UILabel!

    private var shadowBtn: UIButton!

    let ApplicationDelegate = (UIApplication.sharedApplication().delegate as! AppDelegate)
    private var showView: UIView {
        return ApplicationDelegate.window!
    }

    private var confirmClosure: (() -> ())?
    private var cancelClosure: (() -> ())?


    @objc private func shadowBtnClick() {

        UIView.animateWithDuration(0.15, animations: {
            self.shadowBtn.alpha = 0
            self.alpha = 0
        }) { (success) in
            self.shadowBtn.removeFromSuperview()
            self.removeFromSuperview()
        }
    }

    class func exampleAlertView(initialMoney: String, canInput: Bool, confirmClosure:(()->()), cancelClosure: (() -> ())) -> DXPayAlertView {
        let alert = NSBundle.mainBundle().loadNibNamed("ExampleAlertView", owner: nil, options: nil).first as! ExampleAlertView
        alert.confirmClosure = confirmClosure
        alert.cancelClosure = cancelClosure

        return alert
    }

    override func awakeFromNib() {
        self.layer.cornerRadius = 10
        self.layer.masksToBounds = true
        self.shadowBtn = UIButton(frame: UIScreen.mainScreen().bounds)
        self.shadowBtn.addTarget(self, action: #selector(ExampleAlertView.shadowBtnClick), forControlEvents: .TouchUpInside)
        self.shadowBtn.backgroundColor = UIColor.blackColor()
        shadowBtn.alpha = 0.4
        UIApplication.sharedApplication().keyWindow?.addSubview(shadowBtn)
    }

    func show() {
        let size = UIScreen.mainScreen().bounds.size
        self.shadowBtn.center = CGPoint(x: size.width/2, y: size.height/2)
        self.center = self.shadowBtn.center
        self.shadowBtn.frame = self.showView.bounds
        self.shadowBtn.alpha = 0
        self.alpha = 0

        self.transform = CGAffineTransformMakeScale(1.2, 1.2)

        UIView.animateWithDuration(0.25) {

            self.shadowBtn.alpha = 0.4
            self.showView.addSubview(self.shadowBtn)

            UIView.animateWithDuration(0.25, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 0.1, options: .CurveEaseInOut, animations: {
                self.showView.addSubview(self)
                self.transform = CGAffineTransformMakeScale(1.0, 1.0)

                self.alpha = 1
                }, completion: { (_) in
                    self.transform = CGAffineTransformMakeScale(1.0, 1.0)
                    self.showView.addSubview(self)
                    self.alpha = 1
            })
        }
    }

    @IBAction func confirmBtnClick(sender: UIButton) {
        self.confirmClosure?()
        shadowBtnClick()
    }

    @IBAction func cancelBtnClick(sender: UIButton) {
        self.cancelClosure?()
        shadowBtnClick()
    }
}