import UIKit
import Foundation

class Signup: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.

}

@IBOutlet weak var username: UITextField!
@IBOutlet weak var email: UITextField!
@IBOutlet weak var password: UITextField!
@IBOutlet weak var lastname: UITextField!
@IBOutlet weak var firstname: UITextField!

@IBAction func register(_ sender: AnyObject) {

  if((username.text?.isEmpty)! || (password.text?.isEmpty)! || (email.text?.isEmpty)! || (lastname.text?.isEmpty)! || (firstname.text?.isEmpty)!){

        username.attributedPlaceholder = NSAttributedString(string: username.placeholder!, attributes: [NSForegroundColorAttributeName: UIColor.red])
    email.attributedPlaceholder = NSAttributedString(string: email.placeholder!, attributes: [NSForegroundColorAttributeName: UIColor.red])
    password.attributedPlaceholder = NSAttributedString(string: password.placeholder!, attributes: [NSForegroundColorAttributeName: UIColor.red])
    lastname.attributedPlaceholder = NSAttributedString(string: lastname.placeholder!, attributes: [NSForegroundColorAttributeName: UIColor.red])
    firstname.attributedPlaceholder = NSAttributedString(string: firstname.placeholder!, attributes: [NSForegroundColorAttributeName: UIColor.red])

  }else{
    let url = NSURL(string: "http://localhost/classdbfiles/register.php")!
    let request = NSMutableURLRequest(url: url as URL)
    request.httpMethod = "POST"
    let body = "username=(username.text!.lowercased())&email=(email.text!)&password=(password.text!)&lastname=(lastname.text!)&firstname=(firstname.text!)"
    request.httpBody = body.data(using: String.Encoding.utf8)

    URLSession.shared.dataTask(with: request as URLRequest, completionHandler: {(data: Data?, response: URLResponse?, error: Error?) in

        if error == nil{
            DispatchQueue.main.async(execute: {
                do{
                    let json = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? NSDictionary
                    guard let parseJSON = json else{
                    print("error while parsing")

                    return

                        }
                    let id = parseJSON["id"]
                    if id != nil{
                        print(parseJSON)
                    }
                }catch{
                    print("caught an error:(error)")
                }
            })
        }else{
            print("error: (error)")
        }
        }).resume()
    }
}

override func viewDidAppear(_ animated: Bool) {

}




   override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}



}