//
//  WebViewController.swift
//  Befund
//
//  Created by Artur Savitskiy on 31.08.22.
//  Copyright © 2022 MVZ Dr. Stein und Kollegen. All rights reserved.
//

import UIKit
import WebKit

protocol UpdatingParentCheckBox: AnyObject {
    var confirmCheckBox: CheckBoxButton! {get}
}

class WebViewController: UIViewController {
        
    private let webView: WKWebView = {
        let preferences = WKPreferences()
        preferences.javaScriptEnabled = true
        let configuration = WKWebViewConfiguration()
        configuration.preferences = preferences
        let webView = WKWebView(frame: .zero, configuration: configuration)
        
        return webView
    }()
    
    private let url: URL
    private let localUrl: URL
    private let btnDoneTitle: String
    
    public var parentView: UpdatingParentCheckBox? = nil
    
    init(url: URL, title: String, localUrl: URL)
    {
        self.url = url
        self.btnDoneTitle = title
        self.localUrl = localUrl
        super.init(nibName: nil, bundle: nil)
    }

    required init?(coder: NSCoder)
    {
        fatalError()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .systemBackground
        view.addSubview(webView)
        webView.load(URLRequest(url: url))
        configurateButtons()
    }
    
    private func configurateButtons()
    {

        let btnDone = UIButton(frame: CGRect(x: 0, y: 0, width: self.view.frame.width-30, height: 45))
        btnDone.setTitle(btnDoneTitle, for: .normal)
        btnDone.titleLabel?.lineBreakMode = NSLineBreakMode.byWordWrapping
        btnDone.titleLabel?.textAlignment = .center
        btnDone.backgroundColor = UIColor(red: 153/255, green: 19/255, blue: 85/255, alpha: 1)
        btnDone.setTitleColor(.white, for: .normal)
        btnDone.layer.cornerRadius = 5
        btnDone.clipsToBounds = true
        btnDone.addTarget(self, action: #selector(didTapAccept), for: .touchUpInside)
        let barButton = UIBarButtonItem(customView: btnDone)
        
        navigationItem.leftBarButtonItem = barButton
    }
    
    @objc private func didTapAccept()
    {
        if (parentView!.confirmCheckBox != nil)
        {
            parentView!.confirmCheckBox.setChecked(flag: true)
        
            let settings = Core.Models.Settings.loadFromFile(atPath: Core.System.SettingsPath())
            if (!settings!.policyAGBExplained)
            {
                settings!.policyAGBExplained = true
                _ = settings!.save(atPath: Core.System.SettingsPath())
            }
        }

        dismiss(animated: true, completion: nil)
    }
    
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        webView.frame = view.bounds
    }

}