//
//  ViewControllerExtensions.swift
//  WarplySDKFrameworkIOS
//
//  Created by Manos Chorianopoulos on 5/5/22.
//

import UIKit

extension UIViewController {
    func setBackButton() {
        let uiscreen: CGRect = UIScreen.main.bounds
        
        let backButton = UIButton(type: UIButton.ButtonType.custom) as UIButton
        backButton.frame = CGRect(x: 0, y: 0, width: uiscreen.height * 0.025, height: uiscreen.height * 0.02)
        backButton.imageView!.contentMode = .scaleAspectFit
        //backButton.setBackgroundImage(UIImage(named:Assets.Navigation.backButton), for: UIControlState())
        backButton.setImage(UIImage(named: "ic_back", in: Bundle(for: MyEmptyClass.self), compatibleWith: nil), for: .normal)
//        backButton.imageEdgeInsets = UIEdgeInsets(top: 0, left: -20, bottom: 0, right: 0)
        backButton.addTarget(self, action:  #selector(moveToBack(_:)), for: .touchUpInside)
        
        
        backButton.translatesAutoresizingMaskIntoConstraints = false
        // Add width, height constraints
        let widthContraints =  NSLayoutConstraint(item: backButton, attribute: NSLayoutConstraint.Attribute.width, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: uiscreen.height * 0.025)
        let heightContraints = NSLayoutConstraint(item: backButton, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.equal, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: uiscreen.height * 0.02)
        NSLayoutConstraint.activate([heightContraints,widthContraints])
        
        let leftBarButtonItem: UIBarButtonItem = UIBarButtonItem(customView: backButton)
        self.navigationItem.setLeftBarButton(leftBarButtonItem, animated: false)
        self.navigationItem.title = ""
    }
    
    
    @objc func moveToBack(_ sender:UIButton){
        self.navigationController?.popViewController(animated: true)
        self.dismiss(animated: true, completion: {})
    }
    
    func setNavigationTitle(_ title: String, _ fontWeight: String? = "medium") {
        let uiscreen: CGRect = UIScreen.main.bounds
        
        let titleLabel = UILabel(frame: CGRect(x: 0, y: 0, width: uiscreen.width * 0.7, height: uiscreen.height * 0.03))
        titleLabel.text = title
        titleLabel.textColor = UIColor(red: 0.21, green: 0.32, blue: 0.41, alpha: 1.00)
        if (fontWeight == "bold") {
            titleLabel.font = UIFont(name: "PFSquareSansPro-Bold", size: 17)
        } else {
            titleLabel.font = UIFont(name: "PFSquareSansPro-Medium", size: 17)
        }
        titleLabel.adjustsFontSizeToFitWidth = true
        titleLabel.textAlignment = .center
        self.navigationItem.titleView = titleLabel
        
    }
}

extension String {
    var htmlToAttributedString: NSAttributedString? {
        guard let data = data(using: .utf8) else { return nil }
        do {
            return try NSAttributedString(data: data, options: [.documentType: NSAttributedString.DocumentType.html, .characterEncoding:String.Encoding.utf8.rawValue], documentAttributes: nil)
        } catch {
            return nil
        }
    }
    var htmlToString: String {
        return htmlToAttributedString?.string ?? ""
    }
}

extension String {

    var length: Int {
        return count
    }

    subscript (i: Int) -> String {
        return self[i ..< i + 1]
    }

    func substring(fromIndex: Int) -> String {
        return self[min(fromIndex, length) ..< length]
    }

    func substring(toIndex: Int) -> String {
        return self[0 ..< max(0, toIndex)]
    }

    subscript (r: Range<Int>) -> String {
        let range = Range(uncheckedBounds: (lower: max(0, min(length, r.lowerBound)),
                                            upper: min(length, max(0, r.upperBound))))
        let start = index(startIndex, offsetBy: range.lowerBound)
        let end = index(start, offsetBy: range.upperBound - range.lowerBound)
        return String(self[start ..< end])
    }
}

extension UIView {

    func addDashedBorderVertical(color: UIColor, width: CGFloat, height: CGFloat) {

        let color = color.cgColor
        let frameSize = self.frame.size
        
        let lineLayer = CAShapeLayer()
        lineLayer.strokeColor = color
        lineLayer.lineWidth = width
        lineLayer.lineDashPattern = [5,5]
        
        let path = CGMutablePath()
        path.addLines(between: [CGPoint(x: frameSize.width/2, y: 0), CGPoint(x: frameSize.width/2, y: height)])
        lineLayer.path = path
        self.layer.addSublayer(lineLayer)
    }
}

extension UIImageView {
    
    func load(link: String, placeholder: UIImage?, cache: URLCache? = nil) {
        guard let url = URL(string: link) else { return }
        
        let cache = cache ?? URLCache.shared
        let request = URLRequest(url: url)
        if let data = cache.cachedResponse(for: request)?.data, let image = UIImage(data: data) {
            DispatchQueue.main.async {
                self.image = image
            }
        } else {
            self.image = placeholder
            URLSession.shared.dataTask(with: request, completionHandler: { (data, response, error) in
                if let data = data, let response = response, ((response as? HTTPURLResponse)?.statusCode ?? 500) < 300, let image = UIImage(data: data) {
                    let cachedData = CachedURLResponse(response: response, data: data)
                    cache.storeCachedResponse(cachedData, for: request)
                    DispatchQueue.main.async {
                        self.image = image
                    }

                }
            }).resume()
        }
    }
}

typealias GradientPoints = (startPoint: CGPoint, endPoint: CGPoint)

enum GradientOrientation {
    case topRightBottomLeft
    case topLeftBottomRight
    case horizontal
    case vertical

    var startPoint : CGPoint {
        return points.startPoint
    }

    var endPoint : CGPoint {
        return points.endPoint
    }

    var points : GradientPoints {
        switch self {
        case .topRightBottomLeft:
            return (CGPoint(x: 0.0,y: 1.0), CGPoint(x: 1.0,y: 0.0))
        case .topLeftBottomRight:
            return (CGPoint(x: 0.0,y: 0.0), CGPoint(x: 1,y: 1))
        case .horizontal:
            return (CGPoint(x: 0.0,y: 0.5), CGPoint(x: 1.0,y: 0.5))
        case .vertical:
            return (CGPoint(x: 0.0,y: 0.0), CGPoint(x: 0.0,y: 1.0))
        }
    }
}

extension UIView {

    func applyGradient(colours: [UIColor], locations: [NSNumber]? = nil, cornerRadius: CGFloat) {
        let gradient = CAGradientLayer()
        gradient.frame = self.bounds
        gradient.colors = colours.map { $0.cgColor }
        gradient.locations = locations
        gradient.cornerRadius = cornerRadius
        gradient.name = "linearGradientLayer"
        self.layer.insertSublayer(gradient, at: 0)
    }

    func applyGradient(colours: [UIColor], gradient orientation: GradientOrientation, cornerRadius: CGFloat) {
        let gradient = CAGradientLayer()
        gradient.frame = self.bounds
        gradient.colors = colours.map { $0.cgColor }
        gradient.startPoint = orientation.startPoint
        gradient.endPoint = orientation.endPoint
        gradient.cornerRadius = cornerRadius
        gradient.name = "linearGradientLayer"
        self.layer.insertSublayer(gradient, at: 0)
    }
}

extension UIViewController
{
    func setupToHideKeyboardOnTapOnView()
    {
        let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(UIViewController.dismissKeyboardWarply))

        tap.cancelsTouchesInView = false
        view.addGestureRecognizer(tap)
    }

    @objc func dismissKeyboardWarply()
    {
        view.endEditing(true)
    }
}

extension UIFont {
    class func mediumSystemFont(ofSize pointSize: CGFloat) -> UIFont {
        return self.systemFont(ofSize: pointSize, weight: .medium)
    }
}