import UIKit
import Firebase

class SignInVC: UIViewController {

//outlets

    @IBOutlet weak var emailTF: UITextField!
    @IBOutlet weak var passwordTF: UITextField!

//action


    @IBAction func onSignInTapped(_ sender: Any) {

        guard let email = emailTF.text,
        email != "",
        let password = passwordTF.text,
        password != ""
        else {
            AlertController.showAlert(self, title: "Missing Info", message: "Please fill out all required fields")
            return
        }

        Auth.auth().signIn(withEmail: email, password: password, completion: { (user, error) in
            guard error == nil else{
                AlertController.showAlert(self, title: "Error", message: error!.localizedDescription)
                return
            }
            guard let user = user else { return }
            print(user.email ?? "MISSING EMAIL")
            print(user.displayName ?? "MISSING DISPLAY NAME")
            print(user.uid)

            self.performSegue(withIdentifier: "signInSegue", sender: nil)


        })

    }



}

import UIKit
import Firebase

class SignUpVC: UIViewController {

    //outlets

    @IBOutlet weak var usernameTF: UITextField!

    @IBOutlet weak var emailTF: UITextField!

    @IBOutlet weak var passwordTF: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

    }

    //actions


    @IBAction func onSignUpTapped(_ sender: Any) {

        guard let username = usernameTF.text,
            username != "",
            let email = emailTF.text,
            email != "",
            let password = passwordTF.text,
            password != ""
            else {
                AlertController.showAlert(self, title: "Missing Info", message: "Please fill out all fields")
                return

        }

        Auth.auth().createUser(withEmail: email, password: password, completion:  { (user, error) in

            guard error == nil else {
                AlertController.showAlert(self, title: "Error", message: error!.localizedDescription)
                return
            }
            guard let user = user else { return }
            print(user.email ?? "Missing Email")
            print(user.uid)

            let changeRequest = user.createProfileChangeRequest()
            changeRequest.displayName = username
            changeRequest.commitChanges(completion: { (error) in
                guard error == nil else {
                    AlertController.showAlert(self, title: "Error", message: error!.localizedDescription)
                    return
                }

                self.performSegue(withIdentifier: "signUpSegue", sender: nil)


            })

        })

    }


}