import java.util.ArrayList;

public final class Calc {

private final int personsCount;

private double total;

private final ArrayList<Product> order;

final static String[] valueToFormat = {"рубль", "рубля", "рублей"};

private int maxLength = 0;

public static Calc getInstance(final MyScanner scanner) {

Calc calc = null;

while (calc == null) {

System.out.println("На скольких человек необходимо разделить счёт?");

int personsCount = scanner.nextInt();

if (personsCount >= 2) {

calc = new Calc(personsCount, new ArrayList<Product>());

} else {

MyScanner.errorMessage();

}

}

return calc;

}

public void addProduct(final String name, final double price) {

Product newProduct = new Product(name, price);

order.add(newProduct);

total += price;

maxLength = Math.max(maxLength, name.length());

}

public void printOrder() {

System.out.println("Добавленные товары:");

for (Product product : order) {

String name = product.getName();

double price = product.getPrice();

System.out.println(String.format(name + ".".repeat(maxLength - name.length() + 5) + "%.2f" +

Formatter.formatValue(price, valueToFormat), price));

}

double eachToPay = total / personsCount;

String total = String.format("Сумма к оплате для каждого человека: %.2f %s",

eachToPay, Formatter.formatValue(eachToPay, valueToFormat));

System.out.println("_".repeat(total.length()));

System.out.println(total);

}

Calc(int personsCount, ArrayList<Product> order) {

this.personsCount = personsCount;

this.order = order;

}

}