import Users.Cashier;
import Users.Manager;
import Users.Trainer;
import Users.User;

import java.util.Scanner;
import java.util.ArrayList;
import java.util.List;

public class LoginScreen {

    //Creating a variable that later determines what kind of user signed in
    int result;

    //Creating a method that runs the login, with a int value as returntype
    public int runLogin() {

        //Creating variables that the user types in
        int ID;
        String Password;

        //Creating variables, that are used later to determine if user has signed in, and what role
        User Loggedinuser = null;
        String Roleuser = "";

        //Creating a arraylist
        List<User> listOfUsers = new ArrayList<>();

        //Adding items to the arraylist, using the different constructers that is inherited from the superclass (Users.User)
        listOfUsers.add(new Trainer(31243, "Test123", "Trainer"));
        listOfUsers.add(new Cashier(21300, "Test321", "Cashier"));
        listOfUsers.add(new Manager(11300, "Hej123", "Manager"));
        listOfUsers.add(new Trainer(31200,"1234","Trainer"));

        //Adding scanners - we are adding because or else the nextInt will skip nextLine
        Scanner inp = new Scanner(System.in);
        Scanner intInp = new Scanner(System.in);

        System.out.println();
        System.out.println();

        //Creating a boolean value, so the program keeps running if a mistake is made, and so we can break it when we want
        boolean breakout = true;
        while (breakout) {
            System.out.println("Dolphin sign in system");
            System.out.println();

            //Asking user to type in, and fill the variables we made previously
            System.out.print("ID: ");
            ID = inp.nextInt();
            System.out.print("Password: ");
            Password = intInp.nextLine();

            //We ask that it looks through the arraylist we made
            for (User user : listOfUsers) {
                //If the userinput ID matches one on the arraylist
                if (user.getID()==(ID)) {
                    //Then if also the user password matches that spot on the arraylists password
                    if (user.getPassword().equals(Password)) {
                        //Then we set the variable we made earlier to user
                        Loggedinuser = user;
                        break;
                    }
                }
            }
            //If the variable we made earlier Loggedinuser is something else than null, then the user successfully signed in
            if (Loggedinuser != null) {
                System.out.println();
                System.out.println("User signed in: " + Loggedinuser.getID() + " as " + Loggedinuser.getClearance());
                System.out.println();
                Roleuser = Loggedinuser.getClearance();
                breakout = false;
              //If that is not the case, then the username or password must have been wrong, since the value started as null
            } else {
                System.out.println();
                System.out.println("Invalid username/password, try again");
                System.out.println();
            }
        }
        //Here we return values depending on what clearance they signed in with, used later to determine what access they have
        if (Roleuser.equalsIgnoreCase("Manager")) {
            result = 1;
        } else if (Roleuser.equalsIgnoreCase("Cashier")) {
            result = 2;
        } else if(Roleuser.equalsIgnoreCase("Trainer")){
            result = 3;
        }
        return result;
    }
}