Backport voice message support

Backported changes from master branch include:

72eb23f fix parsing for all events, overloading for specific needs
21bba7d fix parsing event payload in presence of '\n' chars, and include signal emit for voice status and cbl changes.
9f3896c voice: register for all vshl events on start up
0ff12f7 voice: remove vshl-capabilities dependencies
16c4429 voice: add status events to VshlCoreVoiceMessages.
da09164 voice: add initial support for voice agents configuration

Bug-AGL: SPEC-2981, SPEC-2880, SPEC-3060

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: Ia75ff0c8d180324459fe8a2d8fb844b7b288d057

1 files changed, 199 insertions, 0 deletions

diff --git a/voice/voice.cpp b/voice/voice.cpp
new file mode 100644
index 0000000..40349d1
--- /dev/null
+++ b/voice/voice.cpp
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2019 Konsulko Group
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <QStringList>
+#include "voice.h"
+#include "message.h"
+#include "messageengine.h"
+#include "responsemessage.h"
+#include "voicemessage.h"
+#include "voiceagentregistry.h"
+
+Voice::Voice (QUrl &url, QQmlContext *context, QObject *parent) :
+	QObject(parent),
+	m_loop(nullptr)
+{
+	m_loop = new MessageEngine(url);
+	m_var = new VoiceAgentRegistry(this, context, parent);
+
+	QObject::connect(m_loop, &MessageEngine::connected,
+			 this, &Voice::onConnected);
+	QObject::connect(m_loop, &MessageEngine::disconnected,
+			 this, &Voice::onDisconnected);
+	QObject::connect(m_loop, &MessageEngine::messageReceived,
+			 this, &Voice::onMessageReceived);
+}
+
+Voice::~Voice()
+{
+	delete m_loop;
+	delete m_var;
+}
+
+void Voice::scan()
+{
+	VoiceMessage *vmsg = new VoiceMessage();
+	QJsonObject parameter;
+
+	vmsg->createRequest("enumerateVoiceAgents", parameter);
+	m_loop->sendMessage(vmsg);
+	delete vmsg;
+}
+
+void Voice::getCBLpair(QString id)
+{
+    triggerCBLProcess(id);
+}
+
+void Voice::subscribeAgentToVshlEvents(QString id)
+{
+	QJsonArray events = QJsonArray::fromStringList(vshl_events);
+	VoiceMessage *vmsg = new VoiceMessage();
+	QJsonObject parameter;
+
+	parameter.insert("va_id", id);
+	parameter.insert("events", events);
+	vmsg->createRequest("subscribe", parameter);
+	m_loop->sendMessage(vmsg);
+	delete vmsg;
+}
+
+void Voice::unsubscribeAgentFromVshlEvents(QString id)
+{
+	QJsonArray events = QJsonArray::fromStringList(vshl_events);
+	VoiceMessage *vmsg = new VoiceMessage();
+	QJsonObject parameter;
+
+	parameter.insert("va_id", id);
+	parameter.insert("events", events);
+	vmsg->createRequest("unsubscribe", parameter);
+	m_loop->sendMessage(vmsg);
+	delete vmsg;
+}
+
+void Voice::triggerCBLProcess(QString id)
+{
+	QJsonArray events;
+	VoiceMessage *vmsg = new VoiceMessage();
+	QJsonObject parameter;
+
+	parameter.insert("va_id", id);
+	parameter.insert("events", events);
+	vmsg->createRequest("subscribeToLoginEvents", parameter);
+	m_loop->sendMessage(vmsg);
+	delete vmsg;
+}
+
+void Voice::parseAgentsList(QJsonArray agents)
+{
+	for (auto value : agents) {
+		QJsonObject a = value.toObject();
+		QString id = m_var->addAgent(a);
+		subscribeAgentToVshlEvents(id);
+	}
+}
+
+
+
+void Voice::processEvent(VoiceMessage *vmsg)
+{
+	const QString str = vmsg->eventName();
+	QJsonObject data = vmsg->eventData();
+	QString agentId = data.value("va_id").toString();
+	QString state = data.value("state").toString();
+
+	if (vmsg->isAuthStateEvent()) {
+		m_var->setAuthState(
+			agentId,
+			static_cast<VoiceAgentRegistry::ServiceAuthState>(
+			m_var->stringToEnum(state, "ServiceAuthState")));
+
+		return;
+	}
+	else if (vmsg->isConnectionStateEvent()) {
+		m_var->setConnectionState(
+			agentId,
+			static_cast<VoiceAgentRegistry::AgentConnectionState>(
+			m_var->stringToEnum(state, "AgentConnectionState")));
+		return;
+	}
+	else if (vmsg->isDialogStateEvent()) {
+		m_var->setDialogState(
+			agentId,
+			static_cast<VoiceAgentRegistry::VoiceDialogState>(
+			m_var->stringToEnum(state, "VoiceDialogState")));
+		return;
+	}
+	else if (vmsg->isCblEvent()) {
+		auto payload_iter = data.find("payload");
+		if (payload_iter == data.end())
+			qWarning() << "no top-level payload field in event";
+		auto payload_stringval = payload_iter.value().toString();
+		if (!payload_stringval.isEmpty())
+			payload_stringval.remove('\n');
+		QJsonDocument infodoc = QJsonDocument::fromJson(payload_stringval.toUtf8());
+		QJsonObject info = infodoc.object();
+		QJsonObject properties = info.value("payload").toObject();
+		QString url = properties.value("url").toString();
+		QString code = properties.value("code").toString();
+		if (str.contains("expired"))
+			m_var->updateLoginData(agentId, code, url, true);
+		else if (str.contains("received")) {
+			m_var->updateLoginData(agentId, code, url, false);
+		} else
+			qWarning() << "unknown cbl event";
+		return;
+	}
+
+	qWarning() << "Unknown vshl event:" << str;
+}
+
+void Voice::processReply(ResponseMessage *rmsg)
+{
+	if (rmsg->replyStatus() == "failed") {
+		qWarning() << "Reply Failed received for verb:" <<  rmsg->requestVerb();
+	} else	if (rmsg->requestVerb() == "enumerateVoiceAgents") {
+		parseAgentsList(rmsg->replyData().value("agents").toArray());
+		m_var->setDefaultId(
+				rmsg->replyData().value("default").toString());
+	} else
+		qWarning() << "discarding reply received for verb:" <<
+							rmsg->requestVerb();
+}
+
+void Voice::onConnected()
+{
+	scan();
+}
+
+void Voice::onDisconnected()
+{
+	QStringList mvarlist = m_var->getAgentsListById();
+	QStringList::iterator it;
+	for (it = mvarlist.begin(); it != mvarlist.end(); ++it)
+		unsubscribeAgentFromVshlEvents(*it);
+}
+
+void Voice::onMessageReceived(MessageType type, Message *msg)
+{
+	if (msg->isEvent() && type == VoiceEventMessage) {
+		processEvent(qobject_cast<VoiceMessage*>(msg));
+	} else if (msg->isReply() && (type == ResponseRequestMessage)) {
+		processReply(qobject_cast<ResponseMessage*>(msg));
+	} else
+		qWarning() << "Received unknown message type:" << type;
+	msg->deleteLater();
+}