#include "uscxml/Interpreter.h"

using namespace uscxml;

// -- Issue 56 on github
int main(int argc, char** argv) {
	std::deque<std::string> messageQueue;
	messageQueue.push_back("a");
	messageQueue.push_back("b");
	messageQueue.push_back("c");
	messageQueue.push_back("d");

	const char* scxmlContent =
	    "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
	    "<scxml xmlns=\"http://www.w3.org/2005/07/scxml\" version=\"1.0\" initial=\"initial_state\">"
	    "    <state id=\"initial_state\">"
	    "        <transition event=\"a\" target=\"parallel_state\"/>"
	    "    </state>"
	    "    <parallel id=\"parallel_state\">"
	    "        <transition event=\"done.state.parallel_state\" target=\"join_state\"/>"
	    "        <state id=\"p1out\" initial=\"p1\">"
	    "            <state id=\"p1\">"
	    "                <transition event=\"b\" target=\"p11\"/>"
	    "            </state>"
	    "            <final id=\"p11\"/>"
	    "        </state>"
	    "        <state id=\"p2out\" initial=\"p2\">"
	    "            <state id=\"p2\">"
	    "                <transition event=\"c\" target=\"p21\"/>"
	    "            </state>"
	    "            <final id=\"p21\"/>"
	    "        </state>"
	    "    </parallel>"
	    "    <state id=\"join_state\">"
	    "        <transition event=\"d\" target=\"final_state\"/>"
	    "    </state>"
	    "    <final id=\"final_state\"/>"
	    "</scxml>";

	std::string msg;

	uscxml::Interpreter scxml = uscxml::Interpreter::fromXML(scxmlContent, "");
	scxml.addMonitor(new StateTransitionMonitor());

	uscxml::InterpreterState state;
	// assume initial stable configuration
	do {
		state = scxml.step();
	} while(state > 0);

	while(state != uscxml::USCXML_FINISHED && !messageQueue.empty()) {
		msg = messageQueue.front();
		messageQueue.pop_front();

		scxml.receive(uscxml::Event(msg, uscxml::Event::EXTERNAL));

		// step to next stable configuration
		do {
			state = scxml.step();
		} while(state > 0);

	}

	return EXIT_SUCCESS;

}