scriptInterface.h

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/*******************************************************************************
** Copyright (c) 2012 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
#pragma once

#include <vrfobjcore/vrfobjcoreDefines.h>

#include <vrfmsgs/setDataRequestMessage.h>
#include <vrfobjcore/scriptVrfObject.h>
#include <vrfobjcore/scriptTaskControllerInterface.h>
#include <vrfutil/rwVariableBindings.h>

#include "vlutil/vlString.h"

#include <deque>

class DtVrfObject;
class DtTranslatableStream;


class DT_DLL_vrfobjcore DtScriptInterface
{
public:

   class DtScriptFunctionReference
   {
   public:
      DtScriptFunctionReference() {};
      virtual ~DtScriptFunctionReference() {};

      virtual bool operator<(const DtScriptFunctionReference& other) const = 0;
   };

   typedef boost::shared_ptr<DtScriptFunctionReference> DtScriptFunctionReferencePtr;

   typedef std::pair<std::string, DtScriptFunctionReferencePtr> DtPostCallbackEntry;

   struct PostSetDataCallbackLessThan
   {
      bool operator()(DtPostCallbackEntry lhs, DtPostCallbackEntry rhs)
      {
         if (lhs.first < rhs.first) return true;
         else if (lhs.first > rhs.first) return false;
         else if (*lhs.second.get() < *rhs.second.get()) return true;
         else return false;
      }
   };

   typedef std::set<DtPostCallbackEntry, PostSetDataCallbackLessThan> DtPostSetDataCallbackSet;
   typedef std::vector<DtSimMessage*> DtSetDataMessageVector;
   typedef std::map<DtPostCallbackEntry, bool> DtPostCallbackEntryPendingChanges;

protected:
   DtScriptInterface();
   DtScriptInterface(const DtScriptInterface& other);
   DtScriptInterface& operator=(const DtScriptInterface& other);

public:
   virtual ~DtScriptInterface();

   virtual bool invokeInit() = 0;
   virtual void invokeSuspend() = 0;
   virtual bool invokeResume() = 0;

   virtual void invokeTick() = 0;

   virtual bool loadScript(bool reload = false) = 0;

   virtual void invokeCheckInit() = 0;
   virtual bool invokeCheck() = 0;

   virtual void invokeShutdown() = 0;
   
   virtual void invokeDisable() = 0;

   virtual DtString type() const = 0;

   virtual void setTaskId(int taskId) { myTaskId = taskId; }
   virtual int taskId() const { return myTaskId; }

   virtual void setScriptId(const DtString& scriptId) { myScriptId = scriptId; }
   virtual const DtString& scriptId() const { return myScriptId; }

   virtual void setSystemName(const DtString& system) { mySystemName = system; }
   virtual const DtString& systemName() const { return mySystemName; }

   virtual void setScriptPath(const DtFilename& scriptPath) { myScriptPath = scriptPath; }
   virtual const DtFilename& scriptPath() const { return myScriptPath; }

   virtual void setEntity(DtVrfObject* entity) { myEntity = entity; }
   virtual DtVrfObject* entity() const { return myEntity; }

   virtual void init() { }


   virtual void setTaskVariables(const DtRwVariableBindings& variables) { myTaskVariables = variables; }
   virtual const DtRwVariableBindings& taskVariables() const { return myTaskVariables; }
   virtual bool updateTaskVariables();

   virtual DtReaderWriter* saveState() = 0;

   virtual bool loadState(const DtReaderWriter* savedState) = 0;

   virtual void processClearForReuse();

   virtual void setTaskStarting(bool v);
   virtual bool taskStarting() const;


   virtual void setTaskResuming(bool v);
   virtual bool taskResuming() const;


   virtual void setIsBackgroundProces(bool isBgProc);
   virtual bool isBackgroundProcess() const;

   virtual void setController(DtScriptTaskControllerInterface* controller) { myControllerInterface = controller; }
   virtual DtScriptTaskControllerInterface* controller() { return myControllerInterface; }

   virtual void processEntityDestroyed() {}

   double scriptGetExerciseTime();

   int scriptGetApplicationId();

   double scriptGetSimulationTime();

   double scriptGetTimeMultiplier();

   double scriptGetTimeOfDay();

   double scriptGetWindSpeed();

   double scriptGetWindDirection();

   DtScriptVrfObject scriptGetVrfObjectByName(const std::string name);
   void printError(const std::string message);
   void printErrorTranslatableStream(const DtTranslatableStream& message);
   void printWarn(const std::string message);
   void printWarnTranslatableStream(const DtTranslatableStream& message);
   void printInfo(const std::string message);
   void printInfoTranslatableStream(const DtTranslatableStream& message);
   void printVerbose(const std::string message);
   void printVerboseTranslatableStream(const DtTranslatableStream& message);
   void printDebug(const std::string message);
   void printDebugTranslatableStream(const DtTranslatableStream& message);
   bool entityTypeMatches(const std::string&, const std::string&);

   void setTickPeriod(double);

   void setRespondToNewSensorContacts(bool);

   virtual void addPostSetDataCallback(const std::string& setDataType, 
      DtScriptFunctionReferencePtr functionReference);

   virtual void removePostSetDataCallback(const std::string& setDataType,
      DtScriptFunctionReferencePtr functionReference);

   virtual void clearPostSetDataCallbacks();

   static void postSetDataCallback(DtSimMessage* msg, void* usr);
   virtual void processPostSetData(DtSimMessage* msg);

   static void postTickCallback(void* usr);
   virtual void processPostTick();

   virtual void invokePostSetDataCallback(
      DtScriptFunctionReferencePtr functionReference, 
      DtSetDataRequestMessage* setDatRequest) = 0;

   double getTerrainAltitude(const double lat, const double lon,
      bool& dataAvailable, std::string &surface) const;

   double getGroundAltitude(const double lat, const double lon,
      bool&isWater, bool& dataAvailable);
   
   void chordIntersectionDebug(const DtLocation3D& startLoc,
      const DtLocation3D& endLoc);

   bool doesChordHitTerrain(const DtLocation3D &pt1, 
      const DtLocation3D & pt2, 
      bool& dataAvailable
      ) const;

   DtLocation3D findClosestPointToRoad(const DtLocation3D& point, double searchRadius, bool& dataAvailable, bool& success) const;

   std::string getForceName(int forceType);
   bool forcesHostile(std::string force1, std::string force2);

   double gaussian();

protected:
   virtual void scriptTaskComplete(bool success);

   virtual void scriptTaskError();

   virtual bool scriptText(DtString& text);

   virtual bool scriptPath(DtString& path);
   
   virtual const DtReaderWriter* getTaskParam(const DtString& paramName);

   virtual bool getParamMetaDataType(const DtString& paramName, DtString& typeName);

   int myTaskId;
   DtString myScriptId;
   DtString mySystemName;
   DtFilename myScriptPath;
   DtScriptTaskControllerInterface* myControllerInterface;
   DtVrfObject* myEntity;
   DtRwVariableBindings myTaskVariables;
   bool myTaskStarting;
   bool myTaskResuming;
   bool myIsBackgroundProcess;

   DtPostSetDataCallbackSet mySetDataCallbacks;

   DtSetDataMessageVector mySetDataMessages;
   
   DtPostCallbackEntryPendingChanges myPendingSetDataCallbackEntries;

   DtSetDataMessageVector myPendingSetDataMessages;

   bool myExecutingSetDataCallbacks;
};



typedef DtScriptInterface* (*DtScriptInterfaceCreatorFunc)();

class DT_DLL_vrfobjcore DtScriptInterfaceFactory
{
protected:
   DtScriptInterfaceFactory();
   DtScriptInterfaceFactory(const DtScriptInterfaceFactory& other);
   DtScriptInterfaceFactory& operator=(const DtScriptInterfaceFactory& other);

public:
   virtual ~DtScriptInterfaceFactory();

   static DtScriptInterfaceFactory* instance();

   virtual DtScriptInterface* createInstance(const DtString& type);

   virtual void registerCreator(const DtString& type, DtScriptInterfaceCreatorFunc func);

   static void setFactory(DtScriptInterfaceFactory* factory);
   static DtScriptInterfaceFactory* create();

protected:
   std::map<DtString, DtScriptInterfaceCreatorFunc> myCreators;
   static DtScriptInterfaceFactory* theFactoryInstance;
};