import UIKit
import Cartography

class ViewCodeLoginViewController: LoginViewController {

    let userTextField: UITextField = {
        let text = UITextField()
        text.placeholder = "username"
        text.textColor = .black
        return text
    }()

    let passTextField: UITextField = {
        let text = UITextField()
        text.placeholder = "password"
        text.textColor = .black
        return text
    }()

    lazy var loginButton: UIButton = { [weak self] in
        let button = UIButton()
        button.setTitle("login", for: .normal)
        button.addTarget(self, action: #selector(login), for: .touchUpInside)
        button.setTitleColor(.black, for: .normal)
        return button
    }()

    override func loadView() {
        let view = UIView()

        view.addSubview(userTextField)
        view.addSubview(passTextField)
        view.addSubview(loginButton)

        self.view = view
    }

    override func viewDidLoad() {

        constrain(self.view, userTextField, passTextField, loginButton) { view, user, pass, button in
            user.top == view.top + 50
            user.left == view.left + 20
            user.right == view.right - 20

            pass.top == user.bottom + 20
            pass.left == user.left
            pass.right == user.right

            button.top == pass.bottom + 20
            button.right == pass.right
            button.left == pass.left
            button.height == 40
        }

        self.view.backgroundColor = .white

    }

    func login() {

        username = userTextField.text
        password = passTextField.text

        self.delegate?.login(username: self.username!, password: self.password!) { response in
            if response {
                print("user login viewcode")
            } else {
                print("fail to login viewcode")
            }
        }
    }
}