//
//  RegisterViewController.swift
//  QRCodeReader
//
//  Created by Simo Korpikoski on 25/04/17.
//  Copyright © 2017 AppCoda. All rights reserved.
//

import Foundation
import UIKit


class RegisterViewController: UIViewController, UITextFieldDelegate {



    @IBOutlet weak var userNameTextField: UITextField!
    @IBOutlet weak var userEmailTextField: UITextField!
    @IBOutlet weak var userPasswordTextField: UITextField!
    @IBOutlet weak var repeatPasswordTextField: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()

        self.userNameTextField.delegate = self
        self.userNameTextField.tag = 0
        self.userNameTextField.autocapitalizationType = .words
        self.userEmailTextField.delegate = self
        self.userEmailTextField.tag = 1
        self.userPasswordTextField.delegate = self
        self.userPasswordTextField.tag = 2
        self.repeatPasswordTextField.delegate = self
        self.repeatPasswordTextField.tag = 3



}

    override func didReceiveMemoryWarning() {
        //add stuff
    }



    @IBAction func registerButtonTapped(_ sender: AnyObject) {

        let userName = userNameTextField.text;
        let userEmail = userEmailTextField.text;
        let userPassword = userPasswordTextField.text;
        let userRepeatPassword = repeatPasswordTextField.text;


        //Send userdata to server side
        let myUrl = NSURL(string: "http://192.168.1.7/Affix/dbConn/userRegister.php");


        let request = NSMutableURLRequest(url:myUrl! as URL);
        request.httpMethod = "POST";

        let postString = "email=\(userEmail!)&password=\(userPassword!)&name=\(userName!)";

        request.httpBody = postString.data(using: String.Encoding.utf8)




        let task = URLSession.shared.dataTask(with: request as URLRequest){
            data, response, error in

            if error != nil {
                print("error=\(error)")
                return
            }

            var err: NSError?
            do {
                let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary


                if let parseJSON = json {
                    var resultValue:String = parseJSON["status"] as! String;
                    var alertTitle = String()
                    print("result: \(resultValue)");


                    var isUserRegistered:Bool = false;

                    if(resultValue == "Success"){
                        isUserRegistered = true;
                        alertTitle = "Tili lisätty"
                    } else {
                        alertTitle = "Virhe"
                    }

                    var messageToDisplay:String = parseJSON["message"] as! String!;
                    if(!isUserRegistered) {
                        messageToDisplay = parseJSON["message"] as! String!;
                    }


                    DispatchQueue.main.async {
                        //Display alert message with confirmation.


                        let myAlert = UIAlertController(title: alertTitle, message:messageToDisplay, preferredStyle: UIAlertControllerStyle.alert);

                        let okAction = UIAlertAction(title:"Ok", style:UIAlertActionStyle.default) {
                            action in self.dismiss(animated: true, completion: nil);
                            if(isUserRegistered) {
                                self.dismiss(animated: true, completion: nil);
                                DispatchQueue.main.async() {
                                    self.performSegue(withIdentifier: "registered", sender: self)
                                }
                            }

                        }
                        myAlert.addAction(okAction);
                        self.present(myAlert, animated: true, completion: nil);


                    }
                }


            } catch let error as NSError {
                err = error
            }

        }
        task.resume()
}

    //Hide keyboard when user touches outside the keyboard
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        self.view.endEditing(true)
    }

    //Return key press
    func textFieldShouldReturn(_ textField: UITextField) -> Bool
    {
        // Try to find next responder
        if let nextField = textField.superview?.viewWithTag(textField.tag + 1) as? UITextField {
            nextField.becomeFirstResponder()
        } else {
            // Not found, so remove keyboard.
            textField.resignFirstResponder()
        }
        // Do not add a line break
        return false
    }
}