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/***************************************************************************

 *   Copyright (C) November 28, 2008 by Mattias Runge                             *

 *   mattias@runge.se                                                      *

 *   canmessage.cpp                                            *

 *                                                                         *

 *   This program is free software; you can redistribute it and/or modify  *

 *   it under the terms of the GNU General Public License as published by  *

 *   the Free Software Foundation; either version 2 of the License, or     *

 *   (at your option) any later version.                                   *

 *                                                                         *

 *   This program is distributed in the hope that it will be useful,       *

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *

 *   GNU General Public License for more details.                          *

 *                                                                         *

 *   You should have received a copy of the GNU General Public License     *

 *   along with this program; if not, write to the                         *

 *   Free Software Foundation, Inc.,                                       *

 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *

 ***************************************************************************/

#include <string>

#include <iostream>

#include "canidtranslator.h"

#include "canmessage.h"

void CanMessage::setRaw(string rawHex)

{

	CanIdTranslator &translator = CanIdTranslator::getInstance();

	//SyslogStream &slog = SyslogStream::getInstance();

	//PKT 00060102 1 0 00 00 c4

	rawHex = trim(rawHex, '\n');

	rawHex = trim(rawHex);

	vector<string> parts = explode(" ", rawHex);

	if (parts.size() < 2 || parts[0].compare("PKT") != 0)

	{

		//slog << "Malformed can message received from canDaemon: \"" << rawHex << "\"\n";

		throw new CanMessageException("Malformed can message received from canDaemon");

	}

	myRawHeaderBin = hex2bin(parts[1]);

	myIsHeartbeat = (parts[1] == translator.getDefineId("HeartbeatHeader", "None"));

	// This is not a module id header, but heartbeats are sent this way so we want to check it anyway

	if (myIsHeartbeat)

	{

		string rawHexData = "";

		for (int n = 4; n < parts.size(); n++)

		{

			rawHexData += parts[n];

		}

		myData = translator.translateHeartbeatData(rawHexData);

	}

	else

	{

		myClassName = translator.lookupClassName(bin2uint(myRawHeaderBin.substr(3, 4)));

		if (myClassName == "")

		{

			myIsUnknown = true;

			return;

		}

		myDirectionFlag = translator.lookupDirectionFlag(bin2uint(myRawHeaderBin.substr(7, 1)));

		myModuleName = translator.lookupModuleName(bin2uint(myRawHeaderBin.substr(8, 8)));

		myModuleId = (unsigned int)bin2uint(myRawHeaderBin.substr(16, 8));

		int commandId = bin2uint(myRawHeaderBin.substr(24, 8));

		myCommandName = translator.lookupCommandName(commandId, translator.lookupModuleName(myModuleId));

		string rawHexData = "";

		for (int n = 4; n < parts.size(); n++)

		{

			rawHexData += parts[n];

		}

		myData = translator.translateData(commandId, myModuleName, rawHexData);

	}

}

string CanMessage::getRaw()

{

	CanIdTranslator &translator = CanIdTranslator::getInstance();

	string rawHex = "PKT ";

	string bin = "000";

	int classId = translator.resolveClassId(myClassName);

	if (classId == -1)

		bin += "0000";

	else

		bin += uint2bin(classId, 4);

	bin += uint2bin(translator.resolveDirectionFlag(myDirectionFlag), 1);

	int moduleTypeId = translator.resolveModuleId(myModuleName);

	if (moduleTypeId == -1)

		bin += "00000000";

	else

		bin += uint2bin(moduleTypeId, 8);

	int moduleId = myModuleId;

	bin += uint2bin(moduleId, 8);

	int commandNameId = translator.resolveCommandId(myCommandName, myModuleName);

	if (commandNameId == -1)

		bin += "00000000";

	else

		bin += uint2bin(commandNameId, 8);

	rawHex += bin2hex(bin);

	rawHex += " 1 0";

	string dataHex = translator.translateDataToHex(commandNameId, myModuleName, myData);

	while (dataHex.size() > 0)

	{

		string hex = dataHex.substr(0, 2);

		dataHex.erase(0, 2);

		rawHex += " " + hex;

	}

	rawHex += "\n";

	return rawHex;

}

void CanMessage::setJSON(string json)

{

	cout << json << "\n";

	string data = trim(json, '(');

	data = trim(data, ')');

	data = trim(data, '{');

	data = trim(data, '{');

	data = trim(data, ' ');

	vector<string> parts = explode(",", data);

	for (int n = 0; n < parts.size(); n++)

	{

		string part = trim(parts[n], ' ');

		vector<string> innerParts = explode(":", part);

		int c = 0;

		if (innerParts[0] == "data")

			c++;

		string name = trim(innerParts[c], ' ');

		name = trim(name, '{');

		name = trim(name, '}');

		string value = trim(innerParts[c+1], ' ');

		value = trim(value, '{');

		value = trim(value, '}');

		value = trim(value, '"');

		cout << "\n" << name << "=" << value << "\n";

		if (name == "className")

			myClassName = value;

		else if (name == "directionFlag")

			myDirectionFlag = value;

		else if (name == "moduleName")

			myModuleName = value;

		else if (name == "moduleId")

			myModuleId = stoi(value);

		else if (name == "commandName")

			myCommandName = value;

		else

		{

			CanVariable canVariable(name, value, "", "");

			myData[name] = canVariable;

		}

	}

}

string CanMessage::getJSON()

{

	string json = "{ ";

	json += "className : '" + myClassName + "', ";

	json += "directionFlag : '" + myDirectionFlag + "', ";

	json += "moduleName : '" + myModuleName + "', ";

	json += "moduleId : " + itos(myModuleId) + ", ";

	json += "commandName : '" + myCommandName + "', ";

	json += "data : {";

	map<string, CanVariable>::iterator iter;

	for (iter = myData.begin(); iter != myData.end(); iter++)

	{

		json += " " + iter->first + " : { ";

		json += "unit : '" + iter->second.getUnit() + "', ";

		json += "type : '" + iter->second.getType() + "', ";

		json += "value : ";

		if (iter->second.getType() == "uint")

		{

			json += iter->second.getValue();

		}

		else if (iter->second.getType() == "float")

		{

			json += iter->second.getValue();

		}

		else if (iter->second.getType() == "ascii")

		{

			json += "'" + iter->second.getValue() + "'";

		}

		json += " },";

	}

	json = trim(json, ',');

	json += " }";

	return json + " }";

}

string CanMessage::getJSONData()

{

	string json = "{";

	map<string, CanVariable>::iterator iter;

	for (iter = myData.begin(); iter != myData.end(); iter++)

	{

		json += " " + iter->first + " : ";

		if (iter->second.getType() == "uint")

		{

			json += iter->second.getValue();

		}

		else if (iter->second.getType() == "float")

		{

			json += iter->second.getValue();

		}

		else if (iter->second.getType() == "ascii")

		{

			json += "'" + escape(iter->second.getValue()) + "'";

		}

		json += ",";

	}

	json = trim(json, ',');

	return json + " }";

}