OOAD-HW2

import java.util.Date;
import java.util.List;
import java.util.ArrayList;

// Base class for all products
class Product {
    protected int id;
    protected String name;
    protected String description;
    protected float price;
    protected float amount;
    protected Date expiryDate;

    public Product(int id, String name, String description, float price, float amount, Date expiryDate) {
        this.id = id;
        this.name = name;
        this.description = description;
        this.price = price;
        this.amount = amount;
        this.expiryDate = expiryDate;
    }

    public void setPrice(float newPrice) {
        this.price = newPrice;
    }

    public void setDescription(String newDescription) {
        this.description = newDescription;
    }
}

class MeatProduct extends Product {
    public MeatProduct(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class DairyItem extends Product {
    public DairyItem(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class FreshProduct extends Product {
    public FreshProduct(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class ChilledItem extends Product {
    public ChilledItem(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class SmokingItem extends Product {
    public SmokingItem(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class BeverageItem extends Product {
    public BeverageItem(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class AlcoholicBeverage extends Product {
    public AlcoholicBeverage(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class BreadProduct extends Product {
    public BreadProduct(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class DessertItem extends Product {
    public DessertItem(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

class PersonalCareProduct extends Product {
    public PersonalCareProduct(int id, String name, String description, float price, Date expiryDate) {
        super(id, name, description, price, 0, expiryDate);
    }
}

// Order class
class Order {
    private int id;
    private User user;
    private List<Product> products;
    private float totalPrice;
    private String status;
    private Courier courier;

    public Order(int id, User user) {
        this.id = id;
        this.user = user;
        this.products = new ArrayList<>();
        this.status = "New";
    }

    public void addProduct(Product product) {
        products.add(product);
        totalPrice += product.price;
    }

    public float getTotalPrice() {
        return totalPrice;
    }

    public void setStatus(String status) {
        this.status = status;
    }
}

// User management
class User {
    private int id;
    private String fullName;
    private String address;
    private List<Card> cards;
    private String username;
    private String password;

    public User(int id, String fullName, String address, String username, String password) {
        this.id = id;
        this.fullName = fullName;
        this.address = address;
        this.username = username;
        this.password = password;
        this.cards = new ArrayList<>();
    }

    public void addCard(Card card) {
        cards.add(card);
    }

    public void changePassword(String newPassword) {
        this.password = newPassword;
    }
}

// Payment system
abstract class Payment {
    public abstract void confirmPayment();
}

class CardPayment extends Payment {
    private String cardNumber;

    public CardPayment(String cardNumber) {
        this.cardNumber = cardNumber;
    }

    public boolean verifyBankCard() {
        // Placeholder for card verification logic
        return true;
    }

    @Override
    public void confirmPayment() {
        if (verifyBankCard()) {
            System.out.println("Payment confirmed via card.");
        }
    }
}

class CashPayment extends Payment {
    private float cashAmount;

    public CashPayment(float cashAmount) {
        this.cashAmount = cashAmount;
    }

    @Override
    public void confirmPayment() {
        System.out.println("Payment confirmed with cash.");
    }
}

// Admin class
class Admin {
    private int id;
    private String fullName;

    public Admin(int id, String fullName) {
        this.id = id;
        this.fullName = fullName;
    }

    public void addProduct(Product product) {
        // Add product logic
    }

    public void deleteProduct(Product product) {
        // Delete product logic
    }

    public void editProduct(Product product) {
        // Edit product logic
    }

    public void createCoupon(Coupon coupon) {
        // Create coupon logic
    }
}

// Address and coupon management
class Address {
    private String name;
    private String address;

    public Address(String name, String address) {
        this.name = name;
        this.address = address;
    }
}

class Coupon {
    private String code;
    private float discountPercentage;
    private Date expiryDate;

    public Coupon(String code, float discountPercentage, Date expiryDate) {
        this.code = code;
        this.discountPercentage = discountPercentage;
        this.expiryDate = expiryDate;
    }
}

// Reporting system
class Report {
    private Date day;
    private List<Order> orders;
    private float revenue;

    public Report(Date day, List<Order> orders, float revenue) {
        this.day = day;
        this.orders = orders;
        this.revenue = revenue;
    }

    public void sendToAdmin() {
        // Send report to admin logic
    }
}

// Staff and specific roles
class Staff extends User {
    private float yearsOfExperience;
    private boolean isOnline;

    public Staff(int id, String fullName, String address, String username, String password, float yearsOfExperience) {
        super(id, fullName, address, username, password);
        this.yearsOfExperience = yearsOfExperience;
        this.isOnline = false;
    }

    public void changeOrderStatus(Order order, String newStatus) {
        order.setStatus(newStatus);
    }
}

class Courier extends Staff {
    private boolean isDelivering;

    public Courier(int id, String fullName, String address, String username, String password, float yearsOfExperience) {
        super(id, fullName, address, username, password, yearsOfExperience);
        this.isDelivering = false;
    }

    public void takeOrder(Order order) {
        this.isDelivering = true;
        // Logic to handle order delivery
    }

    public void deliverOrder(Order order) {
        this.isDelivering = false;
        // Logic to finalize order delivery
    }
}

class CustomerSupporter extends Staff {
    private boolean isOnSupport;

    public CustomerSupporter(int id, String fullName, String address, String username, String password, float yearsOfExperience) {
        super(id, fullName, address, username, password, yearsOfExperience);
        this.isOnSupport = false;
    }

    public void answerUser(User user) {
        // Answers will be here
    }
}