//-----------------------------------------------------------------------------
//
//	Version.cpp
//
//	Implementation of the Z-Wave COMMAND_CLASS_VERSION
//
//	Copyright (c) 2010 Mal Lansell <openzwave@lansell.org>
//
//	SOFTWARE NOTICE AND LICENSE
//
//	This file is part of OpenZWave.
//
//	OpenZWave is free software: you can redistribute it and/or modify
//	it under the terms of the GNU Lesser General Public License as published
//	by the Free Software Foundation, either version 3 of the License,
//	or (at your option) any later version.
//
//	OpenZWave 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 Lesser General Public License for more details.
//
//	You should have received a copy of the GNU Lesser General Public License
//	along with OpenZWave.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------

#include "CommandClasses.h"
#include "Version.h"
#include "../Defs.h"
#include "../Msg.h"
#include "../Driver.h"
#include "../Node.h"
#include "../platform/Log.h"

#include "../value_classes/ValueString.h"

#include "../tinyxml.h"

using namespace OpenZWave;

enum VersionCmd
{
	VersionCmd_Get					= 0x11,
	VersionCmd_Report				= 0x12,
	VersionCmd_CommandClassGet			= 0x13,
	VersionCmd_CommandClassReport			= 0x14
};

enum
{
	VersionIndex_Library = 0,
	VersionIndex_Protocol,
	VersionIndex_Application
};

//-----------------------------------------------------------------------------
// <Version::Version>
// Constructor
//-----------------------------------------------------------------------------
Version::Version
(
	uint32 const _homeId,
	uint8 const _nodeId
):
	CommandClass( _homeId, _nodeId ),
	m_classGetSupported( true )
{
	SetStaticRequest( StaticRequest_Values );
}

//-----------------------------------------------------------------------------
// <Version::ReadXML>
// Read configuration.
//-----------------------------------------------------------------------------
void Version::ReadXML
(
	TiXmlElement const* _ccElement
)
{
	CommandClass::ReadXML( _ccElement );

	char const* str = _ccElement->Attribute("classgetsupported");
	if( str )
	{
		m_classGetSupported = !strcmp( str, "true");
	}
}

//-----------------------------------------------------------------------------
// <Version::WriteXML>
// Save changed configuration
//-----------------------------------------------------------------------------
void Version::WriteXML
(
	TiXmlElement* _ccElement
)
{
	CommandClass::WriteXML( _ccElement );

	if( !m_classGetSupported )
	{
		_ccElement->SetAttribute( "classgetsupported", "false" );
	}
}

//-----------------------------------------------------------------------------
// <Version::RequestState>
// Request current state from the device
//-----------------------------------------------------------------------------
bool Version::RequestState
(
	uint32 const _requestFlags,
	uint8 const _instance,
	Driver::MsgQueue const _queue
)
{
	if( ( _requestFlags & RequestFlag_Static ) && HasStaticRequest( StaticRequest_Values ) )
	{
		return RequestValue( _requestFlags, 0, _instance, _queue );
	}

	return false;
}

//-----------------------------------------------------------------------------
// <Version::RequestValue>
// Request current value from the device
//-----------------------------------------------------------------------------
bool Version::RequestValue
(
	uint32 const _requestFlags,
	uint8 const _dummy1,		// = 0
	uint8 const _instance,
	Driver::MsgQueue const _queue
)
{
	if( _instance != 1 )
	{
		// This command class doesn't work with multiple instances
		return false;
	}
	if ( IsGetSupported() )
	{
		Msg* msg = new Msg( "VersionCmd_Get", GetNodeId(), REQUEST, FUNC_ID_ZW_SEND_DATA, true, true, FUNC_ID_APPLICATION_COMMAND_HANDLER, GetCommandClassId() );
		msg->Append( GetNodeId() );
		msg->Append( 2 );
		msg->Append( GetCommandClassId() );
		msg->Append( VersionCmd_Get );
		msg->Append( GetDriver()->GetTransmitOptions() );
		GetDriver()->SendMsg( msg, _queue );
		return true;
	} else {
		Log::Write(  LogLevel_Info, GetNodeId(), "VersionCmd_Get Not Supported on this node");
	}
	return false;
}

//-----------------------------------------------------------------------------
// <Version::HandleMsg>
// Handle a message from the Z-Wave network
//-----------------------------------------------------------------------------
bool Version::HandleMsg
(
	uint8 const* _data,
	uint32 const _length,
	uint32 const _instance	// = 1
)
{
	if( Node* node = GetNodeUnsafe() )
	{
		if( VersionCmd_Report == (VersionCmd)_data[0] )
		{
			char library[8];
			char protocol[16];
			char application[16];

			snprintf( library, sizeof(library), "%d", _data[1] );
			snprintf( protocol, sizeof(protocol), "%d.%.2d", _data[2], _data[3] );
			snprintf( application, sizeof(application), "%d.%.2d", _data[4], _data[5] );

			Log::Write( LogLevel_Info, GetNodeId(), "Received Version report from node %d: Library=%s, Protocol=%s, Application=%s", GetNodeId(), library, protocol, application );
			ClearStaticRequest( StaticRequest_Values );

			if( ValueString* libraryValue = static_cast<ValueString*>( GetValue( _instance, VersionIndex_Library ) ) )
			{
				libraryValue->OnValueRefreshed( library );
				libraryValue->Release();
			}
			if( ValueString* protocolValue = static_cast<ValueString*>( GetValue( _instance, VersionIndex_Protocol ) ) )
			{
				protocolValue->OnValueRefreshed( protocol );
				protocolValue->Release();
			}
			if( ValueString* applicationValue = static_cast<ValueString*>( GetValue( _instance, VersionIndex_Application ) ) )
			{
				applicationValue->OnValueRefreshed( application );
				applicationValue->Release();
			}

			return true;
		}

		if (VersionCmd_CommandClassReport == (VersionCmd)_data[0])
		{
			if( CommandClass* pCommandClass = node->GetCommandClass( _data[1] ) )
			{
				Log::Write( LogLevel_Info, GetNodeId(), "Received Command Class Version report from node %d: CommandClass=%s, Version=%d", GetNodeId(), pCommandClass->GetCommandClassName().c_str(), _data[2] );
				pCommandClass->ClearStaticRequest( StaticRequest_Version );
				pCommandClass->SetVersion( _data[2] );
			}

			return true;
		}
	}

	return false;
}

//-----------------------------------------------------------------------------
// <Version::RequestCommandClassVersion>
// Request the version of a command class used by the device
//-----------------------------------------------------------------------------
bool Version::RequestCommandClassVersion
(
	CommandClass const* _commandClass
)
{
	if( m_classGetSupported )
	{
		if( _commandClass->HasStaticRequest( StaticRequest_Version ) )
		{
			Msg* msg = new Msg( "VersionCmd_CommandClassGet", GetNodeId(), REQUEST, FUNC_ID_ZW_SEND_DATA, true, true, FUNC_ID_APPLICATION_COMMAND_HANDLER, GetCommandClassId() );
			msg->Append( GetNodeId() );
			msg->Append( 3 );
			msg->Append( GetCommandClassId() );
			msg->Append( VersionCmd_CommandClassGet );
			msg->Append( _commandClass->GetCommandClassId() );
			msg->Append( GetDriver()->GetTransmitOptions() );
			GetDriver()->SendMsg( msg, Driver::MsgQueue_Send );
			return true;
		}
	}

	return false;
}

//-----------------------------------------------------------------------------
// <Version::CreateVars>
// Create the values managed by this command class
//-----------------------------------------------------------------------------
void Version::CreateVars
(
	uint8 const _instance
)
{
	if( Node* node = GetNodeUnsafe() )
	{
	  	node->CreateValueString( ValueID::ValueGenre_System, GetCommandClassId(), _instance, VersionIndex_Library, "Library Version", "", true, false, "Unknown", 0 );
		node->CreateValueString( ValueID::ValueGenre_System, GetCommandClassId(), _instance, VersionIndex_Protocol, "Protocol Version", "", true, false, "Unknown", 0 );
		node->CreateValueString( ValueID::ValueGenre_System, GetCommandClassId(), _instance, VersionIndex_Application, "Application Version", "", true, false, "Unknown", 0 );
	}
}