SalesApp

package main;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Scanner;
import java.text.ParseException;

import resources.Staff;
import resources.SystemData;
import resources.Data;
import resources.DateCreated;
import resources.Order;

public class SalesApp {
    //instance variables are static to class access it
    static Scanner sc = new Scanner(System.in);
    //linking variables
    static Data data;
    static Staff staff;
    static SystemData SystemData;
    static Order Order;

    public static void main(String[] args)throws ParseException, IOException {
        // Programmer: Syid (keyboardcrash)
        // create obj
        staff = new Staff();
        Order = new Order();
        SystemData = new SystemData();

        boolean login;        //declare boolean
        //start program
        login = setStaffID(); //invoke method to get the boolean value

        if(login) //if login is true then do below
        {
        int choice; //choose is default value for switch case

        do { //creating sentinel value
            //print menu
            System.out.println("Please choose number: ");
            System.out.println("1: Payment");
            System.out.println("2: View items");
            System.out.println("3: Info");
            System.out.println("4: Exit system");
            choice = sc.nextInt(); //get choose value

            switch(choice){ //check choose value
            case 1: //for payment
                int input_1;//

                do{
                    //print menu
                    System.out.print("\n");
                    System.out.println("1: Order");
                    System.out.println("2: Print Invoice");
                    System.out.println("3: Remove order");
                    System.out.println("4: Back to the menu");
                    input_1 = sc.nextInt(); //get input_1 value

                    //sc.nextLine();
                    switch(input_1){
                    case 1:
                        Order.takeOrder(); //display menu
                        //System.out.println("TEST : RM " + Order.orderBill);
                        break;
                    case 2:
                        Order.orderBill = 0; //reset orderBill memory value
                        Order.printInvoice(staff);

                        break;

                    case 3: Order.removeOrder(); //order remove
                    case 4:
                        input_1=4; //back to menu
                        System.out.print("\n");
                    }
                }while(input_1 < 4); //maintain in this page if do something
                break;


            case 2: SystemData.viewItem(); break; //view itemlist

            case 3: staff.ViewStaff(staff.getStaffID() + "\n"); break; //view staff info

            case 4: System.out.println("System terminated"); break;
            }

        }while (choice<4); //if choice value is < 4, then looping
    }
        else
        {
            main(args); //return main class
        }
    }

    //boolean method
    public static boolean setStaffID() throws FileNotFoundException{
        boolean result = false; //false as default boolean, if true = can access login
        DateCreated date = new DateCreated(); //create date obj
        data = new Data(); //create data obj
        ArrayList<Staff> staffList = data.getStaffID();  //create arraylist stafflist invoke arraylist method to get info file

        System.out.print("Please enter Staff ID: ");
        staff.setStaffID(sc.next()); //staff id value

        System.out.print("Password: ");
        staff.setStaffPWD(sc.next()); //pwd value
        System.out.print("\n");

        for(Staff input: staffList){ //looping checking in stafflist
            if(staff.getStaffID().equals(input.getStaffID()) && staff.getStaffPWD().equals(input.getStaffPWD())){ //check if match id entered
                staff = input; //staff <- staff information
                result = true; //boolean become true
            }
        }
        if(result){ //boolean cases selection print out something
            System.out.println("Staff ID accepted, Welcome " + staff.getStaffName() + "!");
            System.out.println("Login at " + date.getDateCreated() + "\n");
            //true
        }else{
            System.out.println("Invalid StaffID! \n");
            //false
        }
        return result; //return boolean result
    }

}