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/*
 * Video On Demand Samples
 *
 * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 * You may also obtain this software under a propriety license from Microchip.
 * Please contact Microchip for further information.
 *
 */

#include "SafeVector.h"
#include "Console.h"
#include "ScriptXml.h"

#define TAG_SCRIPT               ((xmlChar *)"script")
#define TAG_ACTION               ((xmlChar *)"action")
#define TAG_NAME                 ((xmlChar *)"name")
#define TAG_TYPE                 ((xmlChar *)"type")
#define TAG_FBLOCK_ID_HEX        ((xmlChar *)"fblock_id_hex")
#define TAG_FUNCTION_ID_HEX      ((xmlChar *)"function_id_hex")
#define TAG_OP_TYPE_REQUEST_HEX  ((xmlChar *)"op_type_request_hex")
#define TAG_OP_TYPE_RESPONSE_HEX ((xmlChar *)"op_type_response_hex")
#define TAG_PAYLOAD_HEX          ((xmlChar *)"payload_hex")
#define TAG_PAUSE_MS             ((xmlChar *)"pause_ms")

#define VAL_SEND_MCM             ((char*)"SEND_MCM")
#define VAL_PAUSE                ((char*)"PAUSE")

#define XML_STRCMP(x,y)          (strcmp(reinterpret_cast< const char* >(x), reinterpret_cast< const char* >(y)) == 0)

CSciptXml::CSciptXml( const char *szFile ) : CXml( szFile )
{

}

CSciptXml::CSciptXml( const char *szBuffer, uint32_t nBufferLen ) : CXml( szBuffer, nBufferLen )
{

}

bool CSciptXml::GetScripts( CSafeVector<CScript *> &allChannels )
{
    xmlChar szTmp[XML_DEFAULT_VALUE_LEN];
    bool success = false;
    CXml Xml( *( ( CXml * )this ) );
    success = Xml.SetToTopNode();

    while( success && Xml.FindNode( TAG_ACTION ) )
    {
        ConsolePrintf( PRIO_LOW, BLUE"--NEW ACTION--"RESETCOLOR"\n" );
        CScript *script = new CScript();
        if( NULL == script )
            break;

        szTmp[0] = '\0';
        success &= Xml.GetChildValue( TAG_NAME, szTmp, XML_DEFAULT_VALUE_LEN );
        if( success )
        {
            ConsolePrintf( PRIO_LOW, BLUE"Name: '%s'"RESETCOLOR"\n", szTmp );
            int nameLen = sizeof( xmlChar ) * ( xmlStrlen( szTmp ) + 1 );
            if( nameLen >= MAX_SCRIPT_NAME_LENGTH )
                nameLen = MAX_SCRIPT_NAME_LENGTH - 1;
            memcpy( script->scriptName, szTmp, nameLen );
            script->scriptName[nameLen] = '\0'; //Terminate string in any case
        }

        szTmp[0] = '\0';
        success &= Xml.GetChildValue( TAG_TYPE, szTmp );
        if( success )
        {
            ConsolePrintf( PRIO_LOW, BLUE"Type: %s"RESETCOLOR"\n", szTmp );
            if( XML_STRCMP(szTmp, VAL_SEND_MCM) )
            {
                script->scriptType = SCRIPT_MCM_SEND;
            }
            else if( XML_STRCMP(szTmp, VAL_PAUSE) )
            {
                script->scriptType = SCRIPT_PAUSE;
            }
            else
            {
                //Be tolerant to new types
                ConsolePrintf( PRIO_ERROR, YELLOW"CSciptXml: Ignoring unknown TYPE:'%s'"RESETCOLOR"\n", szTmp );
                delete script;
                Xml.FindNextNode();
                continue;
            }
        }

        if( SCRIPT_MCM_SEND == script->scriptType )
        {
            szTmp[0] = '\0';
            success &= Xml.GetChildValue( TAG_FBLOCK_ID_HEX, szTmp, XML_DEFAULT_VALUE_LEN );
            if( success )
            {
                script->fblockId = ConvertToInt( szTmp );
                ConsolePrintf( PRIO_LOW, BLUE"FBlock-ID: '%s=%d'"RESETCOLOR"\n", szTmp, script->fblockId );
            }

            szTmp[0] = '\0';
            success &= Xml.GetChildValue( TAG_FUNCTION_ID_HEX, szTmp, XML_DEFAULT_VALUE_LEN );
            if( success )
            {
                script->functionId = ConvertToInt( szTmp );
                ConsolePrintf( PRIO_LOW, BLUE"Function-ID: '%s=%d'"RESETCOLOR"\n", szTmp, script->functionId );
            }

            szTmp[0] = '\0';
            success &= Xml.GetChildValue( TAG_OP_TYPE_REQUEST_HEX, szTmp,
                XML_DEFAULT_VALUE_LEN );
            if( success )
            {
                script->opTypeRequest = ConvertToInt( szTmp );
                ConsolePrintf( PRIO_LOW, BLUE"OP-Type Request: '%s=%d'"RESETCOLOR"\n", szTmp, script->opTypeRequest );
            }

            szTmp[0] = '\0';
            if( Xml.GetChildValue( TAG_OP_TYPE_RESPONSE_HEX, szTmp,
                XML_DEFAULT_VALUE_LEN ) )
            {
                script->opTypeResponse = ConvertToInt( szTmp );
                ConsolePrintf( PRIO_LOW, BLUE"OP-Type Response: '%s=%d'"RESETCOLOR"\n", szTmp,
                    script->opTypeResponse );
            }
            else
            {
                script->opTypeResponse = 0xFF;
                ConsolePrintf( PRIO_LOW, BLUE"OP-Type Response was not defined"RESETCOLOR"\n" );
            }

            szTmp[0] = '\0';
            //Payload is optional
            if( Xml.GetChildValue( TAG_PAYLOAD_HEX, szTmp, XML_DEFAULT_VALUE_LEN ) )
            {
                ConsolePrintf( PRIO_LOW, BLUE"Payload: '%s'"RESETCOLOR"\n", szTmp );
                StorePayload( szTmp, script );
            }
        }
        else if( SCRIPT_PAUSE == script->scriptType )
        {
            szTmp[0] = '\0';
            success &= Xml.GetChildValue( TAG_PAUSE_MS, szTmp, XML_DEFAULT_VALUE_LEN );
            if( success )
            {
                script->pauseInMillis = strtol( ( char * )szTmp, NULL, 10 );
                ConsolePrintf( PRIO_LOW, BLUE"FBlock-ID: '%s=%d'"RESETCOLOR"\n", szTmp, script->fblockId );
            }
        }
        if( success )
        {
            allChannels.PushBack( script );
        }
        else
        {
            delete script;
        }
        Xml.FindNextNode();
    }
    return success;
}

void CSciptXml::StorePayload( xmlChar *xString, CScript *script )
{
    char *cString = ( char * )xString; //Convertion may be needed..
    script->payloadLength = 0;
    for( uint32_t i = 0; i < strlen( cString ); i++ )
    {
        if( cString[i] >= 65 && cString[i] <= 90 )
        {
            //convert upper case to lower case
            cString[i] += 32;
        }
    }
    char *tkPtr;
    char *token = strtok_r( cString, " ,.-", &tkPtr );
    while( NULL != token )
    {
        if( script->payloadLength >= MAX_PAYLOAD_LENGTH )
        {
            ConsolePrintf( PRIO_ERROR,
                "CSciptXml::ConvertToByteArray, MAX_PAYLOAD_LENGTH is defined too low. Please increase value!" );
            break;
        }
        script->payload[script->payloadLength++] = strtol( token, NULL, 16 );
        token = strtok_r( NULL, " ,.-", &tkPtr );
    }
}