using System;
using System.Linq;

namespace WinFormsApp2
{
    internal enum Activity
    {
        Working,
        Studying,
        Unemployed
    }

    internal struct Human
    {
        public const string FIELDS_DELIMITER = ",";
        public static string HumansDelimiter = Environment.NewLine;

        public string FullName { get; }
        public DateTime Birth { get; }
        public Activity Activity { get; }

        public Human(string fullName, DateTime birth, Activity activity)
        {
            FullName = fullName;
            Birth = birth;
            Activity = activity;
        }

        public override string ToString()
        {
            return $"{FullName} {Birth.ToShortDateString()} {Activity}";
        }

        public static Human[] ParseMany(string text)
        {
            return text
                .Split(new string[] { HumansDelimiter }, StringSplitOptions.RemoveEmptyEntries)
                .Select(t => Parse(t))
                .ToArray();
        }

        public static Human Parse(string text)
        {
            string[] fields = text.Split(new string[] { FIELDS_DELIMITER },
                StringSplitOptions.RemoveEmptyEntries);

            string fullName = fields[0];
            DateTime birth = DateTime.Parse(fields[1]);
            Activity activity = (Activity)Enum.Parse(typeof(Activity), fields[2]);

            return new Human(fullName, birth, activity);
        }
    }
}