import Foundation


import UIKit

extension UIView {
    
    @IBInspectable
    var cornerRadius: CGFloat {
        get {
            return layer.cornerRadius
        }
        set {
            layer.cornerRadius = newValue
        }
    }
    
    @IBInspectable
    var borderWidth: CGFloat {
        get {
            return layer.borderWidth
        }
        set {
            layer.borderWidth = newValue
        }
    }
    
    @IBInspectable
    var borderColor: UIColor? {
        get {
            if let color = layer.borderColor {
                return UIColor(cgColor: color)
            }
            return nil
        }
        set {
            if let color = newValue {
                layer.borderColor = color.cgColor
            } else {
                layer.borderColor = nil
            }
        }
    }
    
    @IBInspectable
    var shadowRadius: CGFloat {
        get {
            return layer.shadowRadius
        }
        set {
            layer.shadowRadius = newValue
        }
    }
    
    @IBInspectable
    var shadowOpacity: Float {
        get {
            return layer.shadowOpacity
        }
        set {
            layer.shadowOpacity = newValue
        }
    }
    
    @IBInspectable
    var shadowOffset: CGSize {
        get {
            return layer.shadowOffset
        }
        set {
            layer.shadowOffset = newValue
        }
    }
    
    @IBInspectable
    var shadowColor: UIColor? {
        get {
            if let color = layer.shadowColor {
                return UIColor(cgColor: color)
            }
            return nil
        }
        set {
            if let color = newValue {
                layer.shadowColor = color.cgColor
            } else {
                layer.shadowColor = nil
            }
        }
    }
    
    @IBInspectable
    var bothTopBorderMask:Bool {
        get{
            return self.bothTopBorderMask
        }
        set{
            if newValue{
                if #available(iOS 11.0, *) {
                    self.layer.maskedCorners = [.layerMinXMinYCorner, .layerMaxXMinYCorner]
                } else {
                    // Fallback on earlier versions
                }
            }
            
        }
    }
    
    @IBInspectable
    var bothTopLeftBottomRightBorderMask:Bool {
        get{
            return bothTopBorderMask
        }
        set{
            if newValue{
                if #available(iOS 11.0, *) {
                    self.layer.maskedCorners = [.layerMinXMinYCorner, .layerMaxXMaxYCorner]
                } else {
                    // Fallback on earlier versions
                }
            }
            
        }
    }
    
    func copyView() -> AnyObject{
        return NSKeyedUnarchiver.unarchiveObject(with: NSKeyedArchiver.archivedData(withRootObject: self))! as AnyObject
    }
    
    func clearConstraints() {
        for subview in self.subviews {
            subview.clearConstraints()
        }
        self.removeConstraints(self.constraints)
    }
    
    func addDashedLine(color: UIColor = UIColor(red: 207/255.0, green: 207/255.0, blue: 207/255.0, alpha: 0.5)) {
        let _ = layer.sublayers?.filter({ $0.name == "DashedTopLine" }).map({ $0.removeFromSuperlayer() })
        self.backgroundColor = UIColor.clear
        let cgColor = color.cgColor
        
        let shapeLayer: CAShapeLayer = CAShapeLayer()
        let shapeRect = CGRect(x: 0, y: 0, width: 0, height: 0)
        
        shapeLayer.name = "DashedTopLine"
        shapeLayer.bounds = shapeRect
        shapeLayer.position = CGPoint(x: 0, y: 0)
        shapeLayer.fillColor = UIColor.clear.cgColor
        shapeLayer.strokeColor = cgColor
        shapeLayer.lineWidth = 2
        shapeLayer.lineJoin = CAShapeLayerLineJoin.round
        shapeLayer.lineDashPattern = [2, 2]
        
        let path: CGMutablePath = CGMutablePath()
        path.move(to: CGPoint(x: 0, y: 0))
        path.addLine(to: CGPoint(x: self.frame.width, y: 0))
        
        shapeLayer.path = path
        
        self.layer.addSublayer(shapeLayer)
    }
    
    
}

extension UIView {
    
    // In order to create computed properties for extensions, we need a key to
    // store and access the stored property
    fileprivate struct AssociatedObjectKeys {
        static var tapGestureRecognizer = "MediaViewerAssociatedObjectKey_mediaViewer"
        static var longPressGestureRecognizer = "MediaViewerAssociatedObjectKey_mediaViewer2"
    }
    
    fileprivate typealias Action = (() -> Void)?
    
    // Set our computed property type to a closure
    fileprivate var tapGestureRecognizerAction: Action? {
        set {
            if let newValue = newValue {
                // Computed properties get stored as associated objects
                objc_setAssociatedObject(self, &AssociatedObjectKeys.tapGestureRecognizer, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN)
            }
        }
        get {
            let tapGestureRecognizerActionInstance = objc_getAssociatedObject(self, &AssociatedObjectKeys.tapGestureRecognizer) as? Action
            return tapGestureRecognizerActionInstance
        }
    }
    
    // This is the meat of the sauce, here we create the tap gesture recognizer and
    // store the closure the user passed to us in the associated object we declared above
    public func addTapGestureRecognizer(action: (() -> Void)?) {
        self.isUserInteractionEnabled = true
        self.tapGestureRecognizerAction = action
        let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleTapGesture))
        self.addGestureRecognizer(tapGestureRecognizer)
    }
    
    // Every time the user taps on the UIImageView, this function gets called,
    // which triggers the closure we stored
    @objc fileprivate func handleTapGesture(sender: UITapGestureRecognizer) {
        if let action = self.tapGestureRecognizerAction {
            action?()
        } else {
            print("no action")
        }
    }
    
}

extension UIView {
    
    // Set our computed property type to a closure
    fileprivate var longPressGestureRecognizerAction: Action? {
        set {
            if let newValue = newValue {
                // Computed properties get stored as associated objects
                objc_setAssociatedObject(self, &AssociatedObjectKeys.longPressGestureRecognizer, newValue, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN)
            }
        }
        get {
            let longPressGestureRecognizerActionInstance = objc_getAssociatedObject(self, &AssociatedObjectKeys.longPressGestureRecognizer) as? Action
            return longPressGestureRecognizerActionInstance
        }
    }
    
    // This is the meat of the sauce, here we create the tap gesture recognizer and
    // store the closure the user passed to us in the associated object we declared above
    public func addLongPressGestureRecognizer(action: (() -> Void)?) {
        self.isUserInteractionEnabled = true
        self.longPressGestureRecognizerAction = action
        let longPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(handleTapGesture2))
        self.addGestureRecognizer(longPressGestureRecognizer)
    }
    
    // Every time the user taps on the UIImageView, this function gets called,
    // which triggers the closure we stored
    @objc fileprivate func handleTapGesture2(sender: UILongPressGestureRecognizer) {
        if let action = self.longPressGestureRecognizerAction,
            sender.state == .began{
            action?()
        } else {
            print("no action")
        }
    }
    
}

extension UIView{
    //Get Parent View Controller from any view
    func parentViewController() -> UIViewController {
        var responder: UIResponder? = self
        while !(responder is UIViewController) {
            responder = responder?.next
            if nil == responder {
                break
            }
        }
        return (responder as? UIViewController)!
    }
}