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, 73 insertions, 0 deletions

diff --git a/voice/voice.h b/voice/voice.h
new file mode 100644
index 0000000..d4c288e
--- /dev/null
+++ b/voice/voice.h
@@ -0,0 +1,73 @@
+/*
+ * 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.
+ */
+
+#ifndef VOICE_H
+#define VOICE_H
+
+#include <QDebug>
+#include <QObject>
+#include <QJsonArray>
+#include <QtQml/QQmlContext>
+#include "message.h"
+
+class MessageEngine;
+class ResponseMessage;
+class VoiceMessage;
+class VoiceAgentRegistry;
+
+class Voice : public QObject
+{
+	Q_OBJECT
+
+	public:
+		explicit Voice(QUrl &url, QQmlContext *context,
+			       QObject * parent = Q_NULLPTR);
+		virtual ~Voice();
+
+		//enumerate agents:
+		Q_INVOKABLE void scan();
+		//obtain code based login params:
+		Q_INVOKABLE void getCBLpair(QString id);
+
+	private:
+		MessageEngine *m_loop;
+		VoiceAgentRegistry *m_var;
+
+		void subscribeAgentToVshlEvents(QString id);
+		void unsubscribeAgentFromVshlEvents(QString id);
+		void triggerCBLProcess(QString id);
+		void parseAgentsList(QJsonArray agents);
+		void processVshlEvent(VoiceMessage *vmsg);
+		void processLoginEvent(VoiceMessage *vmsg);
+
+		void processEvent(VoiceMessage *vmsg);
+		void processReply(ResponseMessage *rmsg);
+
+		// slots
+		void onConnected();
+		void onDisconnected();
+		void onMessageReceived(MessageType type, Message *msg);
+
+		const QStringList vshl_events {
+			"voice_authstate_event",
+			"voice_dialogstate_event",
+			"voice_connectionstate_event",
+			"voice_cbl_codepair_received_event",
+			"voice_cbl_codepair_expired_event",
+		};
+};
+
+#endif // VOICE_H