using System;
using System.Collections.Generic;

public class Person
{
    private string name;
    private decimal money;
    private List<Product> products;

    public Person(string name, decimal money)
    {
        this.Name = name;
        this.Money = money;
        products = new List<Product>();
    }

    public List<Product> Products
    {
        get { return products; }
        private set { products = value; }
    }


    public decimal Money
    {
        get { return money; }
        private set
        {
            Validator.ValidatingMoney(value);
            this.money = value;
        }
    }


    public string Name
    {
        get { return name; }
        private set
        {
           Validator.ValidatingName(value);
            this.name = value;
        }
    }

    public void AddProduct(Product product)
    {
        if (product.Cost <= money)
        {
            products.Add(product);
            this.money -= product.Cost;
        }
        else
        {
            throw new ArgumentException($"{name} can't afford {product.Name}");
        }
    }

    public override string ToString()
    {
        return $"{name} - {string.Join(", ", products)}";
    }

}