//
//  UIView+Extensions.swift
//  TournamentStats
//
//  Created by Laurent Morvillier on 05/08/2019.
//  Copyright © 2019 Stax River. All rights reserved.
//

import Foundation
import UIKit

extension UIView {
    
    func toImage() -> UIImage? {
        UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.isOpaque, 0.0)
        if let context = UIGraphicsGetCurrentContext() {
            self.layer.render(in: context)
            if let image = UIGraphicsGetImageFromCurrentImageContext() {
                UIGraphicsEndImageContext()
                return image
            }
        }
        return nil
    }
    
    
    // MARK: - Constraints
    
    @objc public func addMaxConstraints(view: UIView) {
        
        view.translatesAutoresizingMaskIntoConstraints = false
        
        view.leadingAnchor.constraint(equalTo: self.leadingAnchor).isActive = true
        view.trailingAnchor.constraint(equalTo: self.trailingAnchor).isActive = true
        if #available(iOS 11.0, *) {
            view.topAnchor.constraint(equalTo: self.safeAreaLayoutGuide.topAnchor).isActive = true
        } else {
            view.topAnchor.constraint(equalTo: self.topAnchor).isActive = true
        }
        if #available(iOS 11.0, *) {
            view.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor).isActive = true
        } else {
            view.bottomAnchor.constraint(equalTo: self.bottomAnchor).isActive = true
        }
    }
    
    @objc public func addCenterConstraints(view: UIView) {
        
        view.translatesAutoresizingMaskIntoConstraints = false
        
        view.centerXAnchor.constraint(equalTo: self.centerXAnchor).isActive = true
        view.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
        view.heightAnchor.constraint(equalToConstant: view.frame.size.height).isActive = true
        view.widthAnchor.constraint(equalToConstant: view.frame.size.width).isActive = true
    }
    
    @objc public func addTopStickyConstraintsWithHeight(_ height: CGFloat, view: UIView) {
        
        view.translatesAutoresizingMaskIntoConstraints = false
        
        view.leadingAnchor.constraint(equalTo: self.leadingAnchor).isActive = true
        view.trailingAnchor.constraint(equalTo: self.trailingAnchor).isActive = true
        if #available(iOS 11.0, *) {
            view.topAnchor.constraint(equalTo: self.safeAreaLayoutGuide.topAnchor).isActive = true
        } else {
            view.topAnchor.constraint(equalTo: self.topAnchor).isActive = true
        }
        view.heightAnchor.constraint(equalToConstant: height).isActive = true
    }
    
    @objc public func addBottomStickyConstraintsWithHeight(_ height: CGFloat, view: UIView) {
        
        view.translatesAutoresizingMaskIntoConstraints = false
        
        view.leadingAnchor.constraint(equalTo: self.leadingAnchor).isActive = true
        view.trailingAnchor.constraint(equalTo: self.trailingAnchor).isActive = true
        if #available(iOS 11.0, *) {
            view.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor).isActive = true
        } else {
            view.bottomAnchor.constraint(equalTo: self.bottomAnchor).isActive = true
        }
        view.heightAnchor.constraint(equalToConstant: height).isActive = true
    }
    
    @objc public func addMaxConstraintsToTopView(_ topView: UIView, forView view: UIView) {
        
        view.translatesAutoresizingMaskIntoConstraints = false
        
        view.leadingAnchor.constraint(equalTo: self.leadingAnchor).isActive = true
        view.trailingAnchor.constraint(equalTo: self.trailingAnchor).isActive = true
        view.topAnchor.constraint(equalTo: topView.bottomAnchor).isActive = true
        if #available(iOS 11.0, *) {
            view.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor).isActive = true
        } else {
            view.bottomAnchor.constraint(equalTo: self.bottomAnchor).isActive = true
        }
    }

}