/****************************************************************************
 * 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/msg_value.h"

#include <gwenhywfar/misc.h>
#include <gwenhywfar/list.h>
#include <gwenhywfar/error.h>
#include <gwenhywfar/debug.h>




uint32_t AQH_MsgValue_GetTimestamp(const AQH_MSG *msg)
{
  if ((AQH_Msg_GetMsgType(msg)==AQH_MSG_TYPE_VALUE) &&
      (AQH_Msg_GetBytesInBuffer(msg)>=AQH_MSG_VALUE_MINSIZE)) {
    const uint8_t *ptr;

    ptr=AQH_Msg_GetConstBuffer(msg)+AQH_MSG_OFFS_ALL_DATA_BEGIN+AQH_MSG_OFFS_VALUE_TIMESTAMP;
    return (uint32_t)(ptr[0])+(ptr[1]<<8)+(ptr[2]<<16)+(ptr[3]<<24);
  }
  return 0;
}



uint8_t AQH_MsgValue_GetValueId(const AQH_MSG *msg)
{
  if ((AQH_Msg_GetMsgType(msg)==AQH_MSG_TYPE_VALUE) &&
      (AQH_Msg_GetBytesInBuffer(msg)>=AQH_MSG_VALUE_MINSIZE)) {
    const uint8_t *ptr;

    ptr=AQH_Msg_GetConstBuffer(msg)+AQH_MSG_OFFS_ALL_DATA_BEGIN+AQH_MSG_OFFS_VALUE_VALUEID;
    return ptr[0];
  }
  return 0;
}



uint8_t AQH_MsgValue_GetValueType(const AQH_MSG *msg)
{
  if ((AQH_Msg_GetMsgType(msg)==AQH_MSG_TYPE_VALUE) &&
      (AQH_Msg_GetBytesInBuffer(msg)>=AQH_MSG_VALUE_MINSIZE)) {
    const uint8_t *ptr;

    ptr=AQH_Msg_GetConstBuffer(msg)+AQH_MSG_OFFS_ALL_DATA_BEGIN+AQH_MSG_OFFS_VALUE_VALUETYPE;
    return ptr[0];
  }
  return 0;
}



const char *AQH_MsgValue_GetValueTypeName(const AQH_MSG *msg)
{
  uint8_t t;

  t=AQH_MsgValue_GetValueType(msg);
  switch(t) {
  case AQH_MSG_VALUE_TYPE_TEMP:     return "temperature";
  case AQH_MSG_VALUE_TYPE_HUMIDITY: return "humidity";
  default:                          break;
  }
  return "unknown";
}



double AQH_MsgValue_GetValue(const AQH_MSG *msg)
{
  if ((AQH_Msg_GetMsgType(msg)==AQH_MSG_TYPE_VALUE) &&
      (AQH_Msg_GetBytesInBuffer(msg)>=AQH_MSG_VALUE_MINSIZE)) {
    const uint8_t *ptr;
    double value;
    double denom;
    uint16_t intDenom;

    ptr=AQH_Msg_GetConstBuffer(msg)+AQH_MSG_OFFS_ALL_DATA_BEGIN;
    value=(double)((ptr[AQH_MSG_OFFS_VALUE_VALUE])+(ptr[AQH_MSG_OFFS_VALUE_VALUE+1]<<8));
    intDenom=(ptr[AQH_MSG_OFFS_VALUE_DENOM])+(ptr[AQH_MSG_OFFS_VALUE_DENOM+1]<<8);
    denom=(double)(intDenom);
    if (intDenom==0)
      denom=1.0;
    return (double)(value/denom);

  }
  return 0.0;
}



void AQH_MsgValue_DumpToBuffer(const AQH_MSG *msg, GWEN_BUFFER *dbuf, const char *sText)
{
  if ((AQH_Msg_GetMsgType(msg)==AQH_MSG_TYPE_VALUE) &&
      (AQH_Msg_GetBytesInBuffer(msg)>=AQH_MSG_VALUE_MINSIZE)) {
    GWEN_Buffer_AppendArgs(dbuf, "0x%02x->0x%02x: VALUE %s (timestamp=0x%08x, value_id=0x%02x type=%s value=%f)\n",
                           AQH_Msg_GetSourceAddress(msg),
                           AQH_Msg_GetDestAddress(msg),
                           sText,
                           (unsigned int) AQH_MsgValue_GetTimestamp(msg),
                           AQH_MsgValue_GetValueId(msg),
                           AQH_MsgValue_GetValueTypeName(msg),
                           AQH_MsgValue_GetValue(msg));
  }
}