import UIKit
import Security

class backends: UIViewController, NSURLConnectionDelegate, UIWebViewDelegate {

    @IBOutlet weak var webview: UIWebView!
    var loadingUnvalidatedHTTPSPage:Bool!
    var connection:NSURLConnection!
    let path = "https://dev.app.masjidia.com/admin/login"

    override func viewDidLoad() {
        super.viewDidLoad()

        webview.delegate = self
        webview.scalesPageToFit = true
        webview.contentMode = .scaleAspectFit

        let requestObj = NSURLRequest.init(url: URL(string: path)!, cachePolicy: NSURLRequest.CachePolicy.useProtocolCachePolicy, timeoutInterval: 10.0)
        let conn:NSURLConnection = NSURLConnection(request: requestObj as URLRequest, delegate: self)!
        conn.start()

        self.loadingUnvalidatedHTTPSPage = true
        webview.loadRequest(requestObj as URLRequest)

    }

    private func webView(webView: UIWebView!, didFailLoadWithError error: NSError!) {
        print("Webview fail with error \(error)");

        if(error.domain == NSURLErrorDomain){
            if (error.code == NSURLErrorServerCertificateHasBadDate || error.code == NSURLErrorServerCertificateUntrusted   ||
                error.code == NSURLErrorServerCertificateHasUnknownRoot || error.code == NSURLErrorServerCertificateNotYetValid) {
                print("\n ---- :C ....")
            }
        }
    }

    private func webView(webView: UIWebView!, shouldStartLoadWithRequest request: NSURLRequest!, navigationType: UIWebViewNavigationType) ->Bool{
        print("Webview iniciando");
        if (self.loadingUnvalidatedHTTPSPage!) {
            self.connection = NSURLConnection(request: request as URLRequest, delegate: self)
            self.connection.start();
            return false;
        }
        return true;
    }

    private func webViewDidStartLoad(webView: UIWebView!) {
        print("Webview started Loading")
    }

    private func webViewDidFinishLoad(webView: UIWebView!) {
        print("Webview did finish load")
    }


    // MARK - NSURLConnectionDelegate methods
    func connection(_ connection: NSURLConnection, willSendRequestFor challenge: URLAuthenticationChallenge) {
        let trust:SecTrust = challenge.protectionSpace.serverTrust!;
        let cred:URLCredential = URLCredential(trust: trust)
        challenge.sender?.use(cred, for: challenge)
    }

    func connection(_ connection: NSURLConnection, NSURLConnection response:URLResponse){
        let requestObj:NSURLRequest = NSURLRequest(url: URL(string: path)!, cachePolicy: NSURLRequest.CachePolicy.returnCacheDataElseLoad, timeoutInterval: 20.0)
        self.loadingUnvalidatedHTTPSPage = false
        self.webview.loadRequest(requestObj as URLRequest)
        self.connection.cancel()
    }


}