/*
 * opcua_encodingLayer.c
 *
 *  Created on: Jan 14, 2014
 *      Author: opcua
 */
#include "opcua_encodingLayer.h"
#include "opcua_binaryEncDec.h"
#include "opcua_types.h"

/**
* IntegerId
* Part: 4
* Chapter: 7.13
* Page: 118
*/
T_IntegerId convertToTIntegerId(char* buf, int pos){
	return convertToUInt32(buf, pos);
}

/**
* DiagnosticInfo
* Part: 4
* Chapter: 7.9
* Page: 116
*/
T_DiagnosticInfo convertToTDiagnosticInfo(char* buf, int pos){
	T_DiagnosticInfo tmpTDiagnosticInfo;
	int counter = 0;
	tmpTDiagnosticInfo.namespaceUri = convertToInt32(buf, counter);
	counter += sizeof(tmpTDiagnosticInfo.namespaceUri);
	tmpTDiagnosticInfo.symbolicId = convertToInt32(buf, counter);
	counter += sizeof(tmpTDiagnosticInfo.symbolicId);
	tmpTDiagnosticInfo.locale = convertToInt32(buf, counter);
	counter += sizeof(tmpTDiagnosticInfo.locale);
	tmpTDiagnosticInfo.localizesText = convertToInt32(buf, counter);
	counter += sizeof(tmpTDiagnosticInfo.localizesText);
	tmpTDiagnosticInfo.additionalInfo = convertToUAString(buf, counter);
	counter += sizeof(tmpTDiagnosticInfo.additionalInfo);
	tmpTDiagnosticInfo.innerStatusCode = convertToUAStatusCode(buf, pos);
	counter += sizeof(tmpTDiagnosticInfo.innerStatusCode);

	//If the Flag InnerDiagnosticInfo is set, then the DiagnosticInfo will be encoded
	if((tmpTDiagnosticInfo.innerStatusCode & DIEMT_INNER_DIAGNOSTIC_INFO) == 1){
		tmpTDiagnosticInfo.innerDiagnosticInfo = convertToTDiagnosticInfo(buf, counter);
	}

	return tmpTDiagnosticInfo;
}

/**
* RequestHeader
* Part: 4
* Chapter: 7.26
* Page: 132
*/
T_RequestHeader encodeTRequestHeader(char* buf){
	T_RequestHeader tmpRequestHeader;
	int counter = 0 ;
	//ToDo: counter needs the length of the buffer,
	//		strings have in this type just the size of the pointer not of the content
	tmpRequestHeader.authenticationToken = convertToUANodeId(buf, counter);
	if(tmpRequestHeader.authenticationToken.EncodingByte ==  NIEVT_STRING){
		counter = sizeof(tmpRequestHeader.authenticationToken.EncodingByte) +
				sizeof(tmpRequestHeader.authenticationToken.Namespace) +
				sizeof(tmpRequestHeader.authenticationToken.Identifier.String.Length) +
				sizeof(tmpRequestHeader.authenticationToken.Identifier.String.Data);
	}else{
		counter = sizeof(tmpRequestHeader.authenticationToken);
	}
	tmpRequestHeader.timestamp = convertToUADateTime(buf, counter);
	counter += sizeof(tmpRequestHeader.timestamp);
	tmpRequestHeader.requestHandle = convertToTIntegerId(buf, counter);
	counter += sizeof(tmpRequestHeader.requestHandle);
	tmpRequestHeader.returnDiagnostics = convertToUInt32(buf, counter);
	counter += sizeof(tmpRequestHeader.returnDiagnostics);
	tmpRequestHeader.auditEntryId = convertToUAString(buf, counter);
	counter += sizeof(tmpRequestHeader.auditEntryId);
	tmpRequestHeader.timeoutHint = convertToUInt32(buf, counter);
	counter += sizeof(tmpRequestHeader.timeoutHint);
	// AdditionalHeader will stay empty, need to be changed if there is relevant information

	return tmpRequestHeader;
}

/**
* ResponseHeader
* Part: 4
* Chapter: 7.27
* Page: 133
*/
T_ResponseHeader encodeTResponseHeader(char* buf){
	T_ResponseHeader tmpResponseHeader;
	int counter = 0;
	tmpResponseHeader.timestamp = convertToUADateTime(buf, counter);
	counter += sizeof(tmpResponseHeader.timestamp);
	tmpResponseHeader.requestHandle = convertToTIntegerId(buf, counter);
	counter += sizeof(tmpResponseHeader.requestHandle);
	tmpResponseHeader.serviceResult = convertToUAStatusCode(buf, counter);
	counter += sizeof(tmpResponseHeader.serviceResult);
	tmpResponseHeader.serviceDiagnostics = convertToTDiagnosticInfo(buf, counter);


	return tmpResponseHeader;
}