public IEnumerable<CallStatistic> GetClientCalls(Client client, Func<CallStatistic, bool> predicate)
{
IAccount account = GetAccount(client);
if (account == null)
throw new Exception("IAccount can not be found");
return this._callStatistics[account].Where(predicate);
}
public Agreement(Client client, PhoneNumber phoneNumber, DateTime acceptedDate)
{
Client = client;
PhoneNumber = phoneNumber;
AcceptedDate = acceptedDate;
}
public IAccount GetAccount(Client client)
{
return this._acccounts.FirstOrDefault(IAccount => IAccount.Client == client);
}