Main.java

package ProcessSale;

import java.util.Scanner;

// Class to run the program
public class Main {
    
    public static void main(String[] args) {
        
        // Get username and password
        Scanner input = new Scanner(System.in);
      
        System.out.println("Please enter your employee ID and password");
        String username = input.nextLine();
        String password = input.nextLine();
    

        LoginNoGUI login = new LoginNoGUI(username,password);
        
        // Check validity
        if (!login.isValidUser()) {
            System.out.println("Please enter a valid username");
            System.exit(1);
        }
        
        System.out.println("Welcome " + username + "!");
        
        ManagingUsers userRole = new ManagingUsers(username);
        String role = userRole.getRoles(username, password); 
        System.out.println("Role: " + role);
          
       boolean proceed = true;
       while (proceed == true) {
        if (role.trim().equals("MANAGER")) { //trim() removes extra whitespace
            System.out.println("Would you like to ~Add User~ ~Delete User~ ~Transaction~");
            String managerAnswer = input.nextLine().toUpperCase();
            if (managerAnswer.equals("ADD USER")) {
                ManagingUsers addUser = new ManagingUsers(username);
                    System.out.println("What will be the User's new Employee_ID?");
                        String newID = input.nextLine();
                    System.out.println("What will be the User's new Employee Name?");
                        String newName = input.nextLine();
                    System.out.println("What will be the User's new Role?");
                        String newRole = input.nextLine();
                    System.out.println("What will be the User's new Password?");
                        String newPassword = input.nextLine();
                addUser.insert(newID, newName, newRole, newPassword);
                    System.out.println("~Succesfully Added User~");
            } else if (managerAnswer.equals("DELETE USER")) {
                ManagingUsers deleteUser = new ManagingUsers(username);
                    System.out.println("Enter the user's password for confirmation: ");
                        String deleteUserPassword = input.nextLine();
                deleteUser.delete(deleteUserPassword);
                    System.out.println("~Succesfully Deleted User~");
            } else if (managerAnswer.equals("TRANSACTION")){
                      System.out.println("~Continue Transaction~");
                      proceed = false;
            } else {
                System.out.println("Error in Manager Answer");
            } 
        }
       }
       
        System.out.println("\nStarting up the register...");
        Register register = new Register();
        register.makeNewSale();
        
        
        String barcode = "";
        int qty = -1;
        while (!barcode.equalsIgnoreCase("q")) {
            System.out.println("Please enter an item barcode, or type q to quit");
            barcode = input.next();
            if (!barcode.equalsIgnoreCase("q")) {
                System.out.println("How many would you like?");
                qty = input.nextInt();
                register.enterItem(barcode, qty);
            }
        }
        if (register.hasSale()) {
            System.out.println("Please enter the credit card number or type c for cash...");
            String type = input.next();
            if (type.equalsIgnoreCase("c")) {
                type = "cash";
            }
            register.makePayment(type);
            register.endSale();
        }
        
        System.out.println("Thanks for coming. Bye!");
            
        System.exit(1);
        
    }
}