/// <remarks>Runs <see cref="Keybase.API.Environment.EnsureInitialization"/>.</remarks>
public static void Listen([NotNull] IListener listener)
{
Process process;
if (null == (process = CreateProcess(kListenArguments)))
{
listener.OnError();
return;
}
process.OutputDataReceived += (sender, arguments) =>
{
if (null == process || null == arguments.Data)
{
return;
}
Log.Debug(typeof(Chat), Log.Type.Message, "Incoming: {0}", arguments.Data);
Incoming incoming = JsonSerializer.Deserialize <Incoming> (
arguments.Data,
StandardResolver.AllowPrivateCamelCase
);
Incoming.Content.Type type = incoming.GetContentType();
switch (type)
{
case Incoming.Content.Type.Text:
if (!incoming.MarkReceipt())
{
Log.Error("API.Chat.Listen MarkReceipt failed. Incoming contained no message structure?");
return;
}
Message message = incoming.ToMessage();
if (message.Valid)
{
#if DEBUG_API_LISTEN
Log.Message("API.Chat.Listen invoking OnIncoming: {0}", message);
#endif
listener.OnIncoming(message);
}
else
{
Log.Error("API.Chat.Listen failed to log an incoming message. Keeping busy?");
}
break;
case Incoming.Content.Type.Reaction:
if (!incoming.MarkReceipt())
{
Log.Error("API.Chat.Listen MarkReceipt failed. Incoming contained no message structure?");
return;
}
Reaction reaction = incoming.ToReaction();
if (reaction.Valid)
{
#if DEBUG_API_LISTEN
Log.Message("API.Chat.Listen invoking OnReaction: {0}", reaction);
#endif
listener.OnReaction(reaction);
}
else
{
Log.Error("API.Chat.Listen failed to log an incoming reaction. Keeping busy?");
}
break;
case Incoming.Content.Type.Delete:
DeletePolicy policy = listener.DeletePolicy;
using (PooledList <Message.ID> targets = incoming.ToDeleteList())
{
if (null == targets)
{
Log.Error("API.Chat.Listen received delete with an invalid targets list");
return;
}
#if DEBUG_API_LISTEN
Log.Message("API.Chat.Listen handling delete of {0} messages", targets.Value.Count);
#endif
if (policy.HasFlag(DeletePolicy.Callback))
{
foreach (Message.ID target in targets.Value)
{
listener.OnDelete(target);
}
}
if (policy.HasFlag(DeletePolicy.Remove))
{
foreach (Message.ID target in targets.Value)
{
TryRemoveFromLog(target);
}
}
}
break;
case Incoming.Content.Type.Unknown:
Log.Error("API.Chat.Listen received unknown content type. Incomplete API spec? Data:\n{0}", arguments.Data);
return;
default:
Log.Warning("API.Chat.Listen received unhandled content type: {0}", type);
break;
}
};
bool receivedStartMessage = false;
process.ErrorDataReceived += (sender, arguments) =>
{
if (null == process || null == arguments.Data)
{
return;
}
if (!receivedStartMessage && arguments.Data.StartsWith(kListenOutputStart))
{
receivedStartMessage = true;
return;
}
Log.Error("API.Chat.Listen process received error output: {0}", arguments.Data);
};
process.Exited += (sender, arguments) =>
{
if (null == process)
{
return;
}
Log.Debug(typeof(Chat), Log.Type.Message, "API.Chat.Listen process exit");
listener.OnError();
process.EnableRaisingEvents = false;
process.Dispose();
process = null;
};
if (!process.Start())
{
Log.Error("API.Chat.Listen process failed to start");
listener.OnError();
return;
}
process.BeginOutputReadLine();
process.BeginErrorReadLine();
}