Manager

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package l03;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.Scanner;

/**
 *
 * @author HP
 */
public class Manager {

    /**
     * create ArrayList
     */
    public static ArrayList<Fruit> fa = new ArrayList<>();
    public static ArrayList<Order> lo = new ArrayList<>();
    Hashtable<String, ArrayList<Order>> ht = new Hashtable<>();
    Validation vd = new Validation();
    Scanner sc = new Scanner(System.in);
    private int fruitID;
    private String fruitName;
    private double price;
    private int quantity;
    private String origin;

    /**
     * format menu
     */
    public void menu() {
        System.out.println("   FRUIT SHOP SYSTEM   ");
        System.out.println("1. Create Fruit        ");
        System.out.println("2. View orders         ");
        System.out.println("3. Shopping (for buyer)");
        System.out.println("4. Exit                ");
        System.out.print("Please choose: ");
    }

    /**
     * open menu
     */
    public void openMenu() {
        while (true) {
            menu();
            int choice = vd.checkInputIntLimit();
            switch (choice) {
                case 1:
                    createFruit();
                    break;
                case 2:
                    viewOrder();
                    break;
                case 3:
                    shopping();
                    break;
                case 4:
                    return;
            }
        }
    }

    /**
     * use create fruit function 1
     */
    public void createFruit() {
        String a = "";
        do {
            System.out.println("Please input Fruit ID:");
            inputID();
            System.out.println("Please input Fruit name:");
            fruitName = vd.checkInputWord();
            System.out.println("Please input price:");
            price = vd.checkInputPrice();
            System.out.println("Please input quantity:");
            quantity = vd.checkInputQuantity();
            System.out.println("Please input origin:");
            origin = vd.checkInputWord();
            fa.add(new Fruit(fruitID, fruitName, price, quantity, origin));
            System.out.println("Do you want to order now (Y/N)?");
            boolean isValids = true;
            //Input user's yes or no to playagain or not
            do {
                a = sc.nextLine();
                //check their input if input is valid or not
                if (!(a.equalsIgnoreCase("y") || a.equalsIgnoreCase("n")
                        || a.equalsIgnoreCase("yes") || a.equalsIgnoreCase("no"))) {
                    System.out.println("Please input 'yes' or 'no': ");
                    isValids = false;
                } else {
                    isValids = true;
                }
            } while (isValids == false);

        } while (a.equalsIgnoreCase("y") || a.equalsIgnoreCase("yes"));
    }

    /**
     * Input ID again
     */
    public void inputID() {
        do {
            fruitID = vd.checkInputInt();
            if (checkIDExits()) {
                System.out.println("The ID already exists in the data, please enter another !");
                System.out.print("Enter again: ");
            }
        } while (checkIDExits());
    }

    /**
     * check id already exists
     *
     * @return
     */
    public boolean checkIDExits() {
        for (int i = 0; i < fa.size(); i++) {
            if (fa.get(i).getFruitID() == fruitID) {
                return true;
            }
        }
        return false;
    }

    /**
     * Show table information
     */
    public void printFruitList() {
        if (fa.isEmpty()) {
            System.out.println("There are currently no customer orders");
        } else {
            System.out.println("List of Fruit:");
            System.out.printf("|%5s|%-20s|%-16s|%-5s|\n", "No.", "Fruit Name", "Origin", "Price");
            for (int i = 0; i < fa.size(); i++) {
                Fruit e = fa.get(i);
                e.output();
            }
        }
    }

    public void shopping() {
        if (lo.isEmpty()) {
            System.out.println("khogn");
        } else {
            String a = "";
            String customer = null;
            printFruitList();
            do {

                System.out.println("Please choose fruit you want to buy: ");
                inputName();
                System.out.println("Please input quantity: ");
                inputQuantity();
                System.out.println("Please select 'Yes' if you want to buy more or 'No' stop and invoice");
                boolean isValids = true;
                //Input user's yes or no to playagain or not
                do {
                    a = sc.nextLine();
                    //check their input if input is valid or not
                    if (!(a.equalsIgnoreCase("y") || a.equalsIgnoreCase("n")
                            || a.equalsIgnoreCase("yes") || a.equalsIgnoreCase("no"))) {
                        System.out.println("Please input 'yes' or 'no': ");
                        isValids = false;
                    } else {
                        isValids = true;
                    }
                } while (isValids == false);

            } while (a.equalsIgnoreCase("y") || a.equalsIgnoreCase("yes"));
            Order o = new Order(fruitID, fruitName, quantity, price, customer);
            o.print();
            inputNameCustomer();
        }
    }

    public String inputName() {
        do {
            fruitName = vd.checkInputWord();
            if (!checkNameExits()) {
                System.out.println("The fruit you want to buy is not in the store yet.");
                System.out.print("Please choose another fruit: ");
            }
        } while (!checkNameExits());

        return fruitName;
    }

    public boolean checkNameExits() {
        for (int i = 0; i < fa.size(); i++) {
            if (fa.get(i).getFruitName().equals(fruitName)) {
                return true;
            }
        }
        return false;
    }

    public void inputQuantity() {
        boolean enoughQuantity;
        do {
            quantity = vd.checkInputQuantity();
            enoughQuantity = checkEnoughQuantity();
            if (!enoughQuantity) {
                System.out.println("The store does not have enough quantity to meet your needs.");
                System.out.print("Please enter a smaller quantity: ");
            }
        } while (!enoughQuantity);
    }

    public boolean checkEnoughQuantity() {
        for (int i = 0; i < fa.size(); i++) {
            if (fa.get(i).getFruitName().equals(fruitName) && fa.get(i).getQuantity() >= quantity) {
                return true;
            }
        }
        return false;
    }

    public void inputNameCustomer() {
        System.out.println("Input your name: ");
        String customer = vd.checkInputWord();
        lo.add(new Order(fruitID, fruitName, quantity, price, customer));
        ht.put(customer, lo);
        System.out.println("Add Sucessful.");

    }

    public void viewOrder() {
        if (lo.isEmpty()) {
            System.out.println("khogn");
        } else {
            double total = 0;
            for (String customer : ht.keySet()) {
                System.out.println("Customer: " + customer);
                lo = ht.get(customer);
                System.out.printf("|%-10s|%20s|%16s|%8s|\n", "Product", "Quantity", "Price", "Amount");
                for (Order o : lo) {
                    if (o.getCustomer().equalsIgnoreCase(customer)) {
                        System.out.printf("|%-10s|%20s|%16s|%8s|\n", o.getFruitName(), o.getQuantity(), o.getPrice(), o.getPrice() * o.getQuantity());
                        total += o.getPrice() * o.getQuantity();
                    }

                }
                System.out.printf("|%48s|%8s|\n", "Total", total);
                total = 0;
            }
        }
    }
}