public SentSmsMessageLogEntry Send(string phoneNumber, string message)
{
SentSmsMessageLogEntry result = new SentSmsMessageLogEntry
{
Date = DateTime.UtcNow,
Message = message,
Destination = phoneNumber,
};
SMSMessage msg = Client.SendSmsMessage(_Configuration.FromNumber, phoneNumber, message);
if (msg.Status == "failed")
{
result.Status = (int)MessageSendStatus.Error;
if (msg.RestException != null)
{
result.Details = string.Format(CultureInfo.InvariantCulture, "Code: {0} : Status: {1}",
msg.RestException.Code,
msg.RestException.Status);
}
else
{
result.Details = "Unknown error (Twilio did not report a RestException)";
}
}
else
{
result.MessageId = msg.Sid;
result.Status = (int)MessageSendStatus.Success;
}
return result;
}
void MessageSent(SentSmsMessageLogEntry result, OutgoingSmsMessage message)
{
IDataStore store = DataStore.GetInstance();
if (result.Status == (int)MessageSendStatus.Success)
{
// delete copy local to this store
store.Remove(store.OutgoingMessages.Where(m => m.Id == message.Id).FirstOrDefault());
}
else
{
ProcessSendFailure(message);
}
}
void IDataStore.Save(SentSmsMessageLogEntry entry)
{
SentSmsMessageLogEntries.Add(entry);
SaveChanges();
}
void IDataStore.Save(SentSmsMessageLogEntry entry)
{
SentSmsMessageLogEntries.Add(entry);
SaveChanges();
}
public void Save(SentSmsMessageLogEntry entry)
{
lock (_lock)
{
if (entry.Id == 0)
{
entry.Id = NextId();
}
_sentSmsMessageLogEntries[entry.Id] = entry;
}
}
private void ProcessSendFailure(OutgoingSmsMessage msg)
{
IDataStore store = DataStore.GetInstance();
// reload from the local store
msg = store.OutgoingMessages.Where(m => m.Id == msg.Id).First();
if (msg != null)
{
if (msg.Attempts < 10)
{
msg.Attempts++;
DateTime next;
if (msg.Attempts < 10)
{
next = DateTime.UtcNow.AddMinutes(msg.Attempts * 10);
}
else
{
next = DateTime.UtcNow.AddHours(18);
}
msg.NextAttempt = next;
store.Save(msg);
}
else
{
SentSmsMessageLogEntry entry = new SentSmsMessageLogEntry
{
Date = DateTime.UtcNow,
Destination = msg.Destination,
Message = msg.Message,
Status = (int)MessageSendStatus.Abandoned,
Details = string.Format(CultureInfo.InvariantCulture, "Fatal SMS Send error - giving up on sending message {0} - it was attempted {1} times.",
msg.Id,
msg.Attempts),
};
store.Save(entry);
store.Remove(msg);
}
}
}
