/****************************************************************************
 * This file is part of the project AqHome.
 * AqHome (c) by 2023 Martin Preuss, all rights reserved.
 *
 * The license for this file can be found in the file COPYING which you
 * should have received along with this file.
 ****************************************************************************/

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif


#include "./c_getdatapoints.h"
#include "./aqhome_data_p.h"
#include "aqhome/ipc/data/ipc_data.h"
#include "aqhome/ipc/data/msg_data_datapoints.h"
#include "aqhome/ipc/msg_ipc_result.h"

#include <gwenhywfar/debug.h>



/* ------------------------------------------------------------------------------------------------
 * defines
 * ------------------------------------------------------------------------------------------------
 */

#define AQHOMEDATA_HANDLEGETDATAPOINTS_MAXTABLEENTRIES     2048



/* ------------------------------------------------------------------------------------------------
 * forward declarations
 * ------------------------------------------------------------------------------------------------
 */



/* ------------------------------------------------------------------------------------------------
 * implementations
 * ------------------------------------------------------------------------------------------------
 */


void AqHomeData_HandleGetDataPoints(AQHOME_DATA *aqh, GWEN_MSG_ENDPOINT *ep, const GWEN_MSG *recvdMsg)
{
  GWEN_MSG *outMsg;
  int resultCode=0;

  if (AQH_DataPointsDataIpcMsg_IsValid(recvdMsg)) {
    const char *valueName;

    valueName=AQH_DataPointsDataIpcMsg_GetValueName(recvdMsg);
    if (valueName) {
      const AQH_VALUE *value;

      value=AQH_Storage_GetValueByNameForSystem(aqh->storage, valueName);
      if (value) {
        uint64_t valueId;
        uint32_t numValues;
        uint64_t tsBegin=0;
        uint64_t tsEnd=0;
        uint64_t *tablePtr;

        valueId=AQH_Value_GetId(value);

        numValues=AQH_DataPointsDataIpcMsg_GetNumValues(recvdMsg);
        if (numValues==1) {
          const uint64_t *dataPoints;

          dataPoints=AQH_DataPointsDataIpcMsg_GetDataPoints(recvdMsg);
          tsBegin=dataPoints[0];
          tsEnd=dataPoints[1];
        }

        tablePtr=AQH_Storage_GetDataPoints(aqh->storage, valueId, tsBegin, tsEnd, AQHOMEDATA_HANDLEGETDATAPOINTS_MAXTABLEENTRIES);
        if (tablePtr) {
          int numTableEntries;
          int numDataPoints;

          numTableEntries=(int)(tablePtr[0]);
          numDataPoints=numTableEntries/2;
          outMsg=AQH_DataPointsDataIpcMsg_new(AQH_MSGTYPE_IPC_DATA_GETDATA_RSP, AQH_MSGDATA_DATAPOINTS_FLAGS_LASTMSG,
                                              valueId,
                                              AQH_Value_GetNameForSystem(value),
                                              AQH_Value_GetValueUnits(value),
                                              &(tablePtr[1]), numDataPoints);
          GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
          free(tablePtr);
          return;
        }
        else {
          DBG_INFO(NULL, "No matching datapoints for value \"%s\"", valueName);
          resultCode=AQH_MSG_IPC_ERROR_NODATA;
        }
      }
      else {
        DBG_INFO(NULL, "Value \"%s\" not found", valueName);
        resultCode=AQH_MSG_IPC_ERROR_NOTFOUND;
      }
    }
    else {
      DBG_INFO(NULL, "No value name in request");
      resultCode=AQH_MSG_IPC_ERROR_INVALID;
    }
  }
  else {
    DBG_INFO(NULL, "Invalid request message");
    resultCode=AQH_MSG_IPC_ERROR_INVALID;
  }

  outMsg=AQH_ResultIpcMsg_new(AQH_MSGTYPE_IPC_DATA_RESULT, resultCode);
  GWEN_MsgEndpoint_AddSendMessage(ep, outMsg);
}