/****************************************************************************
 * This file is part of the project AqHome.
 * AqHome (c) by 2024 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 "./requests.h"

#include <gwenhywfar/debug.h>



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

static void _freeFinishedRequests(GWEN_MSG_REQUEST *rq);




void AQH_Requests_CheckTimeouts(GWEN_MSG_REQUEST *requestTreeRoot)
{
  if (requestTreeRoot) {
    GWEN_MSG_REQUEST *rq;
    GWEN_TIMESTAMP *now;

    now=GWEN_Timestamp_NowInLocalTime();
    rq=GWEN_MsgRequest_Tree2_GetFirstChild(requestTreeRoot);
    while(rq) {
      const GWEN_TIMESTAMP *ts;

      ts=GWEN_MsgRequest_GetExpiresAt(rq);
      if (GWEN_Timestamp_Compare(now, ts)>=0) {
        /* timeout */
        DBG_INFO(NULL, "Request timed out, aborting");
        GWEN_MsgRequest_Abort(rq);
      }
      rq=GWEN_MsgRequest_Tree2_GetBelow(rq);
    }
    GWEN_Timestamp_free(now);
  }
}



void AQH_Requests_Cleanup(GWEN_MSG_REQUEST *requestTreeRoot)
{
  if (requestTreeRoot) {
    GWEN_MSG_REQUEST *rq;
  
    rq=GWEN_MsgRequest_Tree2_GetFirstChild(requestTreeRoot);
    while(rq) {
      GWEN_MSG_REQUEST *nextSubRq;
  
      nextSubRq=GWEN_MsgRequest_Tree2_GetNext(rq);
      _freeFinishedRequests(rq);
      rq=nextSubRq;
    }
  }
}



int AQH_Requests_HandleIpcMsg(GWEN_MSG_REQUEST *requestTreeRoot, GWEN_MSG_ENDPOINT *srcEp, GWEN_MSG *recvdMsg)
{
  if (requestTreeRoot) {
    uint32_t refMsgId;

    refMsgId=GWEN_IpcMsg_GetRefMsgId(recvdMsg);
    if (refMsgId) {
      GWEN_MSG_REQUEST *rq;

      rq=GWEN_MsgRequest_Tree2_GetFirstChild(requestTreeRoot);
      while(rq) {
        if (srcEp==GWEN_MsgRequest_GetEndpoint(rq) && refMsgId==GWEN_MsgRequest_GetRequestMsgId(rq)) {
          if (GWEN_MsgRequest_HandleResponse(rq, recvdMsg)==GWEN_MSG_REQUEST_RESULT_HANDLED)
            return GWEN_MSG_REQUEST_RESULT_HANDLED;
        }

        rq=GWEN_MsgRequest_Tree2_GetBelow(rq);
      }
    }
    else {
      DBG_INFO(NULL, "Message has no reference msg id, not a response");
    }
  }
  return GWEN_MSG_REQUEST_RESULT_NOT_HANDLED;
}



int AQH_Requests_HandleTtyMsg(GWEN_MSG_REQUEST *requestTreeRoot, GWEN_MSG_ENDPOINT *srcEp, GWEN_MSG *recvdMsg)
{
  if (requestTreeRoot) {
    GWEN_MSG_REQUEST *rq;
  
    rq=GWEN_MsgRequest_Tree2_GetFirstChild(requestTreeRoot);
    while(rq) {
      if (srcEp==GWEN_MsgRequest_GetEndpoint(rq)) {
        if (GWEN_MsgRequest_HandleResponse(rq, recvdMsg)==GWEN_MSG_REQUEST_RESULT_HANDLED)
          return GWEN_MSG_REQUEST_RESULT_HANDLED;
      }

      rq=GWEN_MsgRequest_Tree2_GetBelow(rq);
    }
  }
  return GWEN_MSG_REQUEST_RESULT_NOT_HANDLED;
}



void _freeFinishedRequests(GWEN_MSG_REQUEST *rq)
{
  GWEN_MSG_REQUEST *subRq;

  subRq=GWEN_MsgRequest_Tree2_GetFirstChild(rq);
  while(subRq) {
    GWEN_MSG_REQUEST *nextSubRq;

    nextSubRq=GWEN_MsgRequest_Tree2_GetNext(subRq);
    _freeFinishedRequests(subRq);
    subRq=nextSubRq;
  }

  if (GWEN_MsgRequest_GetState(rq)==GWEN_MSG_REQUEST_STATE_DONE) {
    DBG_ERROR(NULL, "Deleting request");
    GWEN_MsgRequest_free(rq);
  }
}