import java.util.ArrayList;
import java.util.HashMap;
import java.util.Scanner;

public class leonardshop {
    static HashMap<Integer, leonarditem> leoitems = new HashMap<Integer, leonarditem>();

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        loadVariables();
        showMenu();
    }
    // leonarditem & amount
    static Scanner input = new Scanner(System.in);

    private static HashMap<leonarditem, Integer> shoppingcart = new HashMap<leonarditem, Integer>();
    private static void showMenu() {
        System.out.println("0. CLEAR CART");
        System.out.println("1. SHOW CART CONTENTS");

        System.out.println("2.  Pensil     : RP.100.000");
        System.out.println("3. eraser       : RP.500");
        System.out.println("4. iphone       : RP.3000");
        System.out.println("5. microphone : RP.50.000");
        System.out.print("What would you like to purchase? (1-4): ");
        String inputid = input.next();
        int itemcode = -1;
        try {
            itemcode = Integer.parseInt(inputid);
        } catch (NumberFormatException e) {
            System.out.println("Incorrect id.");
            showMenu();
            return;
        }
        // wrong code
        if (itemcode != 0 && itemcode != 1) {
        if (!leoitems.containsKey(itemcode) || itemcode == -1) {
            System.out.println("That item does not exist.");
            showMenu();
            return;
        }
        }

        // RESET CART
        if (itemcode == 0) {
            shoppingcart.clear();
            System.out.println("Cart cleared.");
            showMenu();
            return;
        }

        // SHOW CART CONTENT
        if (itemcode == 1) {
            System.out.println("-=== SHOPPING CART CONTENTS ===-");
            int i = 1;
            int total = 0;
            for (leonarditem car : shoppingcart.keySet()) {
                int amount = shoppingcart.get(car);
                total = total + car.price * amount;
                System.out.println(i + ". '" + car.itemname + "' x" + amount + "");
                i++;
            }
            System.out.println("YOUR TOTAL PRICE:");
            System.out.println("Rp. " + total);
            System.out.println(" ");

            showMenu();
            return;

        }

        leonarditem item = leoitems.get(itemcode);
        System.out.print("[LEO SHOP] Chosen item: " + item.itemname + " Rp. " + item.price);
        System.out.print("\n [LEO SHOP] How many would you like to buy?");

        int amount = input.nextInt();
        shoppingcart.put(item, amount);
        System.out.print("[LEO SHOP] Added " + amount + "x of " + item.itemname + " to your shopping cart. \n");
        showMenu();
        return;

    }
    //int price, String itemname, int itemcode) {
    private final static void loadVariables() {

        ArrayList<leonarditem> items = new ArrayList<leonarditem>();
        items.add(new leonarditem(100000,"jordy PENCIL", 2));
        items.add(new leonarditem(500, "jordy ERASER", 3));
        items.add(new leonarditem(3000, "jordy iPHONE", 4));
        items.add(new leonarditem(50000, "jordy microphone", 5));
        for (leonarditem item : items) {
            leoitems.put(item.itemcode, item);
        }
    }
}

// main class