Hinduja-LMS/LMS/View Controller/LoginViewController.swift

//
//  LoginViewController.swift
//  LMS
//
//  Created by Suraj Kumar Mandal on 18/08/22.
//

import UIKit
import Toast_Swift

class LoginViewController: UIViewController {
    
    @IBOutlet var lockView: UIView!
    @IBOutlet var lockImageView: UIImageView!
    @IBOutlet var signInTitleLabel: UILabel!
    @IBOutlet var usernameTF: UITextField!
    @IBOutlet var passwordTF: UITextField!
    @IBOutlet var signInButton: UIButton!
    
    var viewModel = LoginViewModel()
    var timer = Timer()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Do any additional setup after loading the view.
        viewModel.delegate = self
        setupUI()
        
        // Add a tap gesture recognizer to the view
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
        self.view.addGestureRecognizer(tapGesture)
    }
    
    override func viewDidDisappear(_ animated: Bool) {
        scheduledTimerWithTimeInterval()
    }
    
    override var preferredStatusBarStyle : UIStatusBarStyle {
        return .lightContent
    }
    
    func setupUI() {
        lockView.layer.borderWidth = 1
        lockView.layer.borderColor = #colorLiteral(red: 0.1058823529, green: 0.3764705882, blue: 0.5960784314, alpha: 1)
        lockView.layer.cornerRadius = lockView.frame.height / 2
        
        let attributes: [NSAttributedString.Key: Any] = [
            .foregroundColor: #colorLiteral(red: 1, green: 1, blue: 1, alpha: 0.69), // Change to your desired color
        ]
        
        usernameTF.attributedPlaceholder = NSAttributedString(string: PlaceHolderText.UserName, attributes: attributes)
        usernameTF.layer.borderWidth = 2
        usernameTF.layer.borderColor = #colorLiteral(red: 0.1058823529, green: 0.3764705882, blue: 0.5960784314, alpha: 1)
        usernameTF.layer.cornerRadius = 10
        
        passwordTF.attributedPlaceholder = NSAttributedString(string: PlaceHolderText.Password, attributes: attributes)
        passwordTF.layer.borderWidth = 2
        passwordTF.layer.borderColor = #colorLiteral(red: 0.1058823529, green: 0.3764705882, blue: 0.5960784314, alpha: 1)
        passwordTF.layer.cornerRadius = 10
        
        signInButton.layer.cornerRadius = 15
    }
    
    @objc func handleTap(_ sender: UITapGestureRecognizer) {
        // Call this method when a tap gesture is recognized
        self.view.endEditing(true) // Resign first responder status for the text field
    }
    
    func login() {
        if usernameTF.text?.isEmpty == true {
            self.view.makeToast("Enter username!")
        } else if passwordTF.text?.isEmpty == true {
            self.view.makeToast("Enter password!")
        } else {
            if Reachability.isConnectedToNetwork() {
                viewModel.login(email: usernameTF.text!, password: passwordTF.text!)
            } else {
                Alert.showInternetFailureAlert(on: self)
            }
        }
    }
    
    func scheduledTimerWithTimeInterval() {
        let time = UserDefaults.standard.value(forKey: "tokenExpire") as! Int
        timer = Timer.scheduledTimer(timeInterval: TimeInterval(time), target: self, selector: #selector(self.refresh), userInfo: nil, repeats: true)
    }
    
    @objc func refresh() {
        Dispatch.background {
            self.viewModel.refreshToken()
        }
    }
    
    
    /*
     // 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.
     }
     */
    
    
    @IBAction func signInAction(_ sender: Any) {
        login()
    }
    
}

extension LoginViewController: LoginViewProtocol {
    func navigate() {
        UserDefaults.standard.set(1, forKey: "menuActiveIndex")
        UserDefaults.standard.synchronize()
        let vc = self.storyboard?.instantiateViewController(withIdentifier: "StudyMaterialsViewController") as! StudyMaterialsViewController
        self.navigationController?.pushViewController(vc, animated: false)
    }
    
    func startLoader() {
        ActivityIndicator.start()
    }
    
    func stopLoader() {
        ActivityIndicator.stop()
    }
    
    func showError(error: String) {
        self.view.makeToast(error)
    }
}