3 files changed, 110 insertions, 21 deletions

diff --git a/signal-composer-binding/signal-composer.cpp b/signal-composer-binding/signal-composer.cpp
index 9288e56..8ad8c3b 100644
--- a/signal-composer-binding/signal-composer.cpp
+++ b/signal-composer-binding/signal-composer.cpp
@@ -22,7 +22,7 @@
 CtlSectionT bindingApp::ctlSections_[] = {
 	[0]={.key="plugins" ,.label = "plugins", .info=nullptr,
 		.loadCB=PluginConfig,
-		.handle=nullptr},
+		.handle=&bindingApp::instance()},
 	[1]={.key="sources" ,.label = "sources", .info=nullptr,
 		 .loadCB=loadSourcesAPI,
 		 .handle=nullptr},
@@ -363,17 +363,43 @@ json_object* bindingApp::getSignalValue(const std::string& sig, json_object* opt
 		if (strcasestr(opts[idx], "last") && !last)
 		{
 			last = true;
-			double value = sigP->last();
-			json_object_object_add(response, "last",
-				json_object_new_double(value));
+			struct SignalValue value = sigP->last();
+			if(value.hasBool)
+			{
+				json_object_object_add(response, "last",
+					json_object_new_boolean(value.boolVal));
+			}
+			if(value.hasNum)
+			{
+				json_object_object_add(response, "last",
+					json_object_new_double(value.numVal));
+			}
+			if(value.hasStr)
+			{
+				json_object_object_add(response, "last",
+					json_object_new_string(value.strVal.c_str()));
+			}
 		}
 	}
 
 	if (!opts)
 	{
-		double value = sigP->last();
-		json_object_object_add(response, "last",
-			json_object_new_double(value));
+		struct SignalValue value = sigP->last();
+		if(value.hasBool)
+		{
+			json_object_object_add(response, "last",
+				json_object_new_boolean(value.boolVal));
+		}
+		if(value.hasNum)
+		{
+			json_object_object_add(response, "last",
+				json_object_new_double(value.numVal));
+		}
+		if(value.hasStr)
+		{
+			json_object_object_add(response, "last",
+				json_object_new_string(value.strVal.c_str()));
+		}
 	}
 
 	return response;
diff --git a/signal-composer-binding/signal.cpp b/signal-composer-binding/signal.cpp
index 147aef0..dfa3d5f 100644
--- a/signal-composer-binding/signal.cpp
+++ b/signal-composer-binding/signal.cpp
@@ -22,6 +22,8 @@
 #include "signal.hpp"
 #include "signal-composer.hpp"
 
+#define MICRO 1000000
+
 Signal::Signal(const std::string& id,
 			std::vector<std::string>& sources,
 			const std::string& unit,
@@ -29,6 +31,8 @@ Signal::Signal(const std::string& id,
 			CtlActionT* onReceived)
 :id_(id),
  signalSigList_(sources),
+ timestamp_(0.0),
+ value_({0,0,0,0,0,""}),
  frequency_(frequency),
  unit_(unit),
  onReceived_(onReceived)
@@ -90,14 +94,21 @@ json_object* Signal::toJSON() const
 	return queryJ;
 }
 
-void update(double timestamp, double value)
+void Signal::update(long long int timestamp, struct SignalValue value)
 {
-	AFB_NOTICE("Got an update from observed signal");
+	AFB_NOTICE("Got an update from observed signal. Timestamp: %lld, vb: %d, vn: %lf, vs: %s", timestamp, value.boolVal, value.numVal, value.strVal.c_str());
 }
 
+/// @brief Notify observers that there is a change and execute callback defined
+/// when signal is received
+///
+/// @param[in] queryJ - JSON query object to transmit to callback function
+///
+/// @return 0 if OK, -1 or other if not.
 int Signal::onReceivedCB(json_object *queryJ)
 {
-	return ActionExecOne(onReceived_, queryJ);
+	notify();
+	return onReceived_ ? ActionExecOne(onReceived_, queryJ) : 0;
 }
 
 void Signal::attach(Signal* obs)
@@ -157,15 +168,49 @@ int Signal::recursionCheck()
 
 double Signal::average(int seconds) const
 {
-	return 0.0;
+	long long int begin = history_.begin()->first,
+		end = begin+(seconds*MICRO);
+	double total = 0.0;
+	int nbElt = 0;
+
+	for (const auto& val: history_)
+	{
+		if(val.first >= end)
+			{break;}
+		if(val.second.hasNum)
+		{
+			total += val.second.numVal;
+		nbElt++;
+		}
+		else
+		{
+			AFB_ERROR("There isn't numerical value to compare with in that signal '%s'. Stored value : bool %d, num %lf, str: %s",
+			id_.c_str(),
+			val.second.boolVal,
+			val.second.numVal,
+			val.second.strVal.c_str());
+			break;
+		}
+	}
+
+	return total / nbElt;
 }
 double Signal::minimum() const
 {
 	double min = DBL_MAX;
 	for (auto& v : history_)
 	{
-		double temp_min = v.second;
-		if(temp_min < min) { min = temp_min;}
+		if(v.second.hasNum && v.second.numVal < min)
+			{min = v.second.numVal;}
+		else
+		{
+			AFB_ERROR("There isn't numerical value to compare with in that signal '%s'. Stored value : bool %d, num %lf, str: %s",
+			id_.c_str(),
+			v.second.boolVal,
+			v.second.numVal,
+			v.second.strVal.c_str());
+			break;
+		}
 	}
 	return min;
 }
@@ -175,12 +220,21 @@ double Signal::maximum() const
 	double max = 0.0;
 	for (auto& v : history_)
 	{
-		double temp_max = v.second;
-		if(temp_max > max) { max = temp_max;}
+		if(v.second.hasNum && v.second.hasNum > max)
+			{max = v.second.numVal;}
+		else
+		{
+			AFB_ERROR("There isn't numerical value to compare with in that signal '%s'. Stored value : bool %d, num %lf, str: %s",
+			id_.c_str(),
+			v.second.boolVal,
+			v.second.numVal,
+			v.second.strVal.c_str());
+			break;
+		}
 	}
 	return max;
 }
-double Signal::last() const
+struct SignalValue Signal::last() const
 {
 	return history_.rbegin()->second;
 }
diff --git a/signal-composer-binding/signal.hpp b/signal-composer-binding/signal.hpp
index ac3b678..34e6ab1 100644
--- a/signal-composer-binding/signal.hpp
+++ b/signal-composer-binding/signal.hpp
@@ -24,19 +24,29 @@
 
 class bindingApp;
 
+struct SignalValue {
+	bool hasBool = false;
+	bool boolVal;
+	bool hasNum = false;
+	double numVal;
+	bool hasStr = false;
+	std::string strVal;
+};
+
 class Signal
 {
 private:
 	std::string id_;
 	std::vector<std::string> signalSigList_;
 	long long int timestamp_;
-	double value_;
-	std::map<long long int, double> history_; ///< history_ - Hold signal value history in map with <timestamp, value>
+	struct SignalValue value_;
+	std::map<long long int, struct SignalValue> history_; ///< history_ - Hold signal value history in map with <timestamp, value>
 	double frequency_;
 	std::string unit_;
 	CtlActionT* onReceived_;
 	std::vector<Signal*> Observers_;
 
+	void notify();
 	void attach(Signal *obs);
 	int recursionCheck(const std::string& origId);
 
@@ -49,14 +59,13 @@ public:
 	const std::string id() const;
 	json_object* toJSON() const;
 
-	void update(long long int timestamp, double value);
+	void update(long long int timestamp,  struct SignalValue value);
 	int onReceivedCB(json_object *queryJ);
 	void attachToSourceSignals(bindingApp& bApp);
-	void notify();
 
 	double average(int seconds = 0) const;
 	double minimum() const;
 	double maximum() const;
-	double last() const;
+	struct SignalValue last() const;
 	int recursionCheck();
 };