aqhomecontrol/apps/aqhome-data/s_getvalues.c

/****************************************************************************
 * This file is part of the project AqHome.
 * AqHome (c) by 2025 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 "./s_getvalues.h"
#include "./server_p.h"
#include "aqhome/aqhome.h"
#include "aqhome/ipc2/endpoint.h"
#include "aqhome/msg/ipc/m_ipc.h"
#include "aqhome/msg/ipc/data/m_ipcd.h"
#include "aqhome/msg/ipc/data/m_ipcd_getvalues.h"
#include "aqhome/msg/ipc/data/m_ipcd_values.h"
#include "aqhome/msg/ipc/m_ipc_result.h"
#include "aqhome/msg/ipc/m_ipc_tag16.h"

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



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

#define AQHOMEDATA_VALUESPERMSG 10



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

static AQH_VALUE_LIST *_getMatchingValueList(AQHOME_SERVER *xo, const GWEN_TAG16_LIST *tagList);
static void _sendValueList(AQH_OBJECT *ep, const AQH_VALUE_LIST *vl, uint32_t refMsgId);
static void _sendValueListMsg(AQH_OBJECT *ep, const AQH_VALUE_LIST *vl, uint32_t flags, uint32_t refMsgId);
static int _valueMatches(const AQH_VALUE *v, const char *deviceName, int modality);



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

void AqHomeDataServer_HandleGetValues(AQH_OBJECT *o, AQH_OBJECT *ep, const AQH_MESSAGE *msg, const GWEN_TAG16_LIST *tagList)
{
  AQHOME_SERVER *xo;

  xo=AqHomeDataServer_GetServerData(o);
  if (xo) {
    AQH_VALUE_LIST *valueList;
    uint32_t refMsgId;

    refMsgId=AQH_IpcMessage_GetMsgId(msg);

    DBG_INFO(NULL, "HandleGetValues");
    valueList=_getMatchingValueList(xo, tagList);
    if (valueList) {
      _sendValueList(ep, valueList, refMsgId);
      AQH_Value_List_free(valueList);
    }
    else {
      /* empty list */
      _sendValueListMsg(ep, NULL, AQH_MSGDATA_VALUES_FLAGS_LASTMSG, refMsgId);
    }
  }
}



AQH_VALUE_LIST *_getMatchingValueList(AQHOME_SERVER *xo, const GWEN_TAG16_LIST *tagList)
{
  const AQH_VALUE_LIST *origValueList;
  AQH_VALUE_LIST *tmpValueList=NULL;
  char *deviceName;
  int modality;

  deviceName=tagList?AQH_Tag16_GetTagDataAsNewString(tagList, AQH_MSGDATA_GETVALUES_TAGS_DEVICENAME, NULL):NULL;
  modality=tagList?AQH_Tag16_GetTagDataAsUint64(tagList, AQH_MSGDATA_GETVALUES_TAGS_MODALITY, 0):0;

  origValueList=AQH_Storage_GetValueList(xo->storage);
  if (origValueList) {
    const AQH_VALUE *v;

    tmpValueList=AQH_Value_List_new();
    v=AQH_Value_List_First(origValueList);
    while(v) {
      if (_valueMatches(v, deviceName, modality)) {
	AQH_VALUE *copyOfValue;

	copyOfValue=AQH_Value_dup(v);
	AQH_Value_List_Add(copyOfValue, tmpValueList);
      }
      v=AQH_Value_List_Next(v);
    }
    if (AQH_Value_List_GetCount(tmpValueList)<1) {
      AQH_Value_List_free(tmpValueList);
      tmpValueList=NULL;
    }
  }
  free(deviceName);

  return tmpValueList;
}



void _sendValueList(AQH_OBJECT *ep, const AQH_VALUE_LIST *vl, uint32_t refMsgId)
{
  AQH_VALUE_LIST *tmpValueList;
  const AQH_VALUE *v;

  tmpValueList=AQH_Value_List_new();
  v=AQH_Value_List_First(vl);
  while(v) {
    const AQH_VALUE *next;
    AQH_VALUE *copyOfValue;

    next=AQH_Value_List_Next(v);
    copyOfValue=AQH_Value_dup(v);
    AQH_Value_List_Add(copyOfValue, tmpValueList);
    if (AQH_Value_List_GetCount(tmpValueList)>=AQHOMEDATA_VALUESPERMSG) {
      DBG_INFO(NULL, "Sending %d values", AQH_Value_List_GetCount(tmpValueList));
      _sendValueListMsg(ep, tmpValueList, next?0:AQH_MSGDATA_VALUES_FLAGS_LASTMSG, refMsgId);
      AQH_Value_List_Clear(tmpValueList);
    }
    v=next;
  }
  if (AQH_Value_List_GetCount(tmpValueList)) {
    DBG_INFO(NULL, "Sending %d values", AQH_Value_List_GetCount(tmpValueList));
    _sendValueListMsg(ep, tmpValueList, AQH_MSGDATA_VALUES_FLAGS_LASTMSG, refMsgId); /* send remaining */
  }
  AQH_Value_List_free(tmpValueList);
}



void _sendValueListMsg(AQH_OBJECT *ep, const AQH_VALUE_LIST *vl, uint32_t flags, uint32_t refMsgId)
{
  AQH_MESSAGE *msg;

  DBG_INFO(NULL, "Sending msg (refMsgId=%d)", refMsgId);
  msg=AQH_IpcdMessageValues_new(AQH_MSGTYPE_IPC_DATA_GETVALUES_RSP, AQH_Endpoint_GetNextMessageId(ep), refMsgId, flags, vl);
  AQH_Endpoint_AddMsgOut(ep, msg);
}



int _valueMatches(const AQH_VALUE *v, const char *deviceName, int modality)
{
  if (modality!=AQH_ValueModality_Unknown) {
    int valModality;

    valModality=AQH_Value_GetModality(v);
    if (valModality!=modality)
      return 0;
  }
  if (deviceName && *deviceName) {
    const char *s;

    s=AQH_Value_GetDeviceNameForSystem(v);
    if (s && *s && GWEN_Text_ComparePattern(s, deviceName, 0)==-1)
      return 0;
  }

  return 1;
}