1using System;
 2using System.Collections.Generic;
 3using System.Linq;
 4
 5namespace MoMoney.Domain.Core
 6{
 7    public static class Months
 8    {
 9        static readonly IList<IMonth> all_months = new List<IMonth>();
10
11        public static readonly IMonth January = new Month(01, "January");
12        public static readonly IMonth February = new Month(02, "February");
13        public static readonly IMonth March = new Month(03, "March");
14        public static readonly IMonth April = new Month(04, "April");
15        public static readonly IMonth May = new Month(05, "May");
16        public static readonly IMonth June = new Month(06, "June");
17        public static readonly IMonth July = new Month(07, "July");
18        public static readonly IMonth August = new Month(08, "August");
19        public static readonly IMonth September = new Month(09, "September");
20        public static readonly IMonth October = new Month(10, "October");
21        public static readonly IMonth November = new Month(11, "November");
22        public static readonly IMonth December = new Month(12, "December");
23
24        public static IMonth that_represents(DateTime the_underlying_date)
25        {
26            return all_months.Single(x => x.represents(the_underlying_date));
27        }
28
29        public static void add(IMonth month)
30        {
31            all_months.Add(month);
32        }
33    }
34}