using System.Collections.Generic;

namespace SourceGit.Models {
    public class User {
        public static User Invalid = new User();
        public static Dictionary<string, User> Caches = new Dictionary<string, User>();

        public string Name { get; set; } = string.Empty;
        public string Email { get; set; } = string.Empty;

        public override bool Equals(object obj) {
            if (obj == null || !(obj is User)) return false;

            var other = obj as User;
            return Name == other.Name && Email == other.Email;
        }

        public override int GetHashCode() {
            return base.GetHashCode();
        }

        public static User FindOrAdd(string data) {
            if (Caches.ContainsKey(data)) {
                return Caches[data];
            } else {
                var nameEndIdx = data.IndexOf('<', System.StringComparison.Ordinal);
                var name = nameEndIdx >= 2 ? data.Substring(0, nameEndIdx - 1) : string.Empty;
                var email = data.Substring(nameEndIdx + 1);

                User user = new User() { Name = name, Email = email };
                Caches.Add(data, user);
                return user;
            }
        }
    }
}