/****************************************************************************
 * 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 <aqhome/ipc/data/msg_data_datapoints.h>
#include <aqhome/ipc/data/ipc_data.h>
#include <aqhome/ipc/data/msg_data_multidata.h>
#include <aqhome/ipc/data/msg_data_getdata.h>
#include <aqhome/ipc/data/ipc_data.h>
#include <aqhome/ipc/msg_ipc_tag16.h>

#include <gwenhywfar/msg.h>
#include <gwenhywfar/buffer.h>

#include <gwenhywfar/debug.h>
#include <gwenhywfar/msg_ipc.h>




GWEN_MSG *_waitForMatchingResponse(GWEN_MSG_ENDPOINT *epTcp, int msgCode, int timeoutInSeconds);




GWEN_MSG *AQH_CmdDataIpc_RequestDatapointsMsg(GWEN_MSG_ENDPOINT *ep,
					      const char *valueName, uint64_t tsBegin, uint64_t tsEnd, uint64_t num,
					      int timeoutInSeconds)
{
  GWEN_MSG *msg;
  time_t startTime;

  msg=AQH_GetDataDataIpcMsg_new(AQH_MSGTYPE_IPC_DATA_GETDATA_REQ, valueName, tsBegin, tsEnd, num);
  GWEN_MsgEndpoint_AddSendMessage(ep, msg);

  msg=_waitForMatchingResponse(ep, AQH_MSGTYPE_IPC_DATA_GETDATA_RSP, timeoutInSeconds);
  if (msg) {
    uint16_t code;

    code=GWEN_IpcMsg_GetCode(msg);
    if (code==AQH_MSGTYPE_IPC_DATA_RESULT) {
      uint32_t resultCode;

      resultCode=AQH_ResultIpcMsg_GetResultCode(msg);
      DBG_INFO(AQH_LOGDOMAIN, "IPC error: %d", resultCode);
      GWEN_Msg_free(msg);
      return NULL;
    }
    else if (code==AQH_MSGTYPE_IPC_DATA_GETDATA_RSP) {
      int rv;

      AQH_MultiDataDataIpcMsg_Parse(msg, 0);
      return msg;
    }
    GWEN_Msg_free(msg);
  }
  return NULL;
}



GWEN_MSG *_waitForMatchingResponse(GWEN_MSG_ENDPOINT *epTcp, int msgCode, int timeoutInSeconds)
{
  time_t startTime;

  startTime=time(NULL);

  for (;;) {
    GWEN_MSG *msg;
    time_t now;

    while( (msg=GWEN_MsgEndpoint_TakeFirstReceivedMessage(epTcp)) ) {
      uint16_t code;

      code=GWEN_IpcMsg_GetCode(msg);
      if (code==msgCode) {
        DBG_INFO(NULL, "Received expected IPC message");
        return msg;
      }
      else if (code==AQH_MSGTYPE_IPC_DATA_RESULT) {
        DBG_INFO(NULL, "Received IPC result message");
        return msg;
      }
      else {
        DBG_INFO(NULL, "Received unexpected message %d (%x), ignoring", code, code);
      }
      GWEN_Msg_free(msg);
    } /* while */

    now=time(NULL);
    if (now-startTime>timeoutInSeconds) {
      DBG_INFO(NULL, "Timeout");
      break;
    }
    GWEN_MsgEndpoint_IoLoop(epTcp, 2000); /* 2000 ms */
  }

  return NULL;
}