//
//  LoginViewController.swift
//  Lieferschein
//
//  Created by Sevgjan on 5/24/19.
//  Copyright © 2019 Swiss IT-Factory. All rights reserved.
//

import UIKit

class LoginViewController: UIViewController {

    @IBOutlet weak var lblLieferschein: UILabel!
    @IBOutlet weak var lblLieferscheinCenterConstraint: NSLayoutConstraint! //-180
    @IBOutlet weak var txtUsername: UITextField!
    @IBOutlet weak var txtPassword: UITextField!
    @IBOutlet weak var btnLogin: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
        setup(textField: txtUsername, withImage: UIImage(named: "user") ?? UIImage())
        setup(textField: txtPassword, withImage: UIImage(named: "password") ?? UIImage())

        lblLieferschein.font = isRunningOnIpad() ? UIFont.systemFont(ofSize: 70, weight: .semibold) : UIFont.systemFont(ofSize: 40, weight: .semibold)
        lblLieferscheinCenterConstraint.constant = isRunningOnIpad() ? -180 : 0
    }

    @IBAction func versionInfo(_ sender: Any) {
        let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"]
        if let versionNumber = version as? String {
            let alert = UIAlertController.init(title: "Arbeitsrapport \nVersion \(versionNumber)", message: "Swiss IT-Factory", preferredStyle: .alert)
            alert.addAction(UIAlertAction(title: "Erledigt", style: .default, handler: { (action) in
                alert.dismiss(animated: true, completion: nil)
            }))

            self.present(alert, animated: true, completion: nil)
        }
    }

    func setup(textField: UITextField, withImage: UIImage) {
        let blankView = UIView(frame: CGRect(x: 0, y: 0, width: 35, height: textField.frame.height))
        let userIcon = UIImageView(image: withImage)
        userIcon.contentMode = .scaleAspectFit
        userIcon.center = blankView.center
        blankView.backgroundColor = .clear
        blankView.addSubview(userIcon)

        textField.leftView = blankView
        textField.leftViewMode = .always
    }

    @IBAction func loginAction(_ sender: Any) {
        performSegue(withIdentifier: "showMain", sender: self)
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */

}