sharp-chat/SharpChatCommon/UserInfo.cs

namespace SharpChat {
    public class UserInfo {
        public const int DEFAULT_SIZE = 30;
        public const int DEFAULT_MINIMUM_DELAY = 10000;
        public const int DEFAULT_RISKY_OFFSET = 5;

        public long UserId { get; }
        public string UserName { get; set; }
        public Colour Colour { get; set; }
        public int Rank { get; set; }
        public UserPermissions Permissions { get; set; }
        public bool IsSuper { get; set; }
        public string NickName { get; set; }

        public UserInfo(
            long userId,
            string userName,
            Colour colour,
            int rank,
            UserPermissions perms,
            string? nickName = null,
            bool isSuper = false
        ) {
            UserId = userId;
            UserName = userName;
            Colour = colour;
            Rank = rank;
            Permissions = perms;
            NickName = nickName ?? string.Empty;
            IsSuper = isSuper;
        }

        public static string GetDMChannelName(UserInfo user1, UserInfo user2) {
            return user1.UserId < user2.UserId
                ? $"@{user1.UserId}-{user2.UserId}"
                : $"@{user2.UserId}-{user1.UserId}";
        }
    }
}