public Account FindMemberByNick(string nick)
{
if (String.IsNullOrEmpty(nick))
{
throw new ArgumentNullException(nameof(nick));
}
return(GroupAccounts.FirstOrDefault(a => a.Account.Nick == nick)?.Account);
}
private void AddAccount(Account account, GroupAccountType type)
{
_ = account ?? throw new ArgumentNullException(nameof(account));
if (GroupAccounts.All(x => x.Account != account))
{
var groupAccount = new GroupAccount(account, this, type);
GroupAccounts.Add(groupAccount);
account.GroupAccounts.Add(groupAccount);
}
}
public void RemoveAccount(Account account)
{
_ = account ?? throw new ArgumentNullException(nameof(account));
var groupAccount = GroupAccounts.SingleOrDefault(x => x.Account == account && x.Type == GroupAccountType.Member);
if (groupAccount != null)
{
GroupAccounts.Remove(groupAccount);
account.GroupAccounts.Remove(groupAccount);
}
}
