out_pid.h

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#pragma once
#include "options.h"
#ifndef PID_DISABLE
#include <abstractout.h>
#include <item.h>
#include <PID_v1.h>
#include "itemCmd.h"
#include "aJson.h"

#define OUTPUT_TRESHOLD 1.0

class pidJson {
    public:
    pidJson(aJsonObject * _obj){obj=_obj;};

    aJsonObject * getValObj(){return NULL;};
    aJsonObject * getSetObj(){return NULL;};
    aJsonObject * getPoObj(){return NULL;};
    PID * getPID(){return (obj) ? (PID*) obj->valueint: NULL;};
    aJsonObject * obj;
};

class pidPersistent : public chPersistent  {
public:
  PID * pid;
  iotype output;
  iotype input;
  iotype setpoint;
  float  prevOut; 
  uint32_t alarmTimer;
  bool alarmArmed;
  uint16_t alarmTimeout; //in sec
};
 

class out_pid : public abstractOut {
public:
 
    //out_pid(Item * _item):abstractOut(_item){store = (pidPersistent *) item->getPersistent();};
    out_pid():store(NULL){};
    void link(Item * _item){abstractOut::link(_item); if (_item) {store = (pidPersistent *) item->getPersistent();} else store = NULL;};

    int Setup() override;
    int Poll(short cause) override;
    int Stop() override;
    int isActive() override;
    int getChanType() override;
    //int getDefaultStorageType(){return ST_FLOAT;};
    int Ctrl(itemCmd cmd, char* subItem=NULL, bool toExecute=true, bool authorized = false) override;
    void alarm(bool);
 
 
protected:
    pidPersistent * store;
    bool getConfig();
    float  getAlarmVal();
};
#endif