Sensor.h

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#ifndef SENSOR_H
#define SENSOR_H
 
#include <Arduino.h>
 
#include "Device.h"
#include "Logger.h"
 
class Sensor : public Device {
 private:
  unsigned long minimum_period, last_execution;
  String csv_header, empty_csv;
 
 protected:
  int num_fields;
 
 public:
  Sensor(String sensor_name, String csv_header, unsigned long minimum_period)
      : Device(sensor_name) {
    this->minimum_period = minimum_period;
    this->last_execution = 0;
    this->csv_header = csv_header;
    this->empty_csv = "";
    this->num_fields = 0;
    for (size_t i = 0; i < csv_header.length(); i++) {
      if (csv_header[i] == ',') {
        this->empty_csv += "-,";
        this->num_fields++;
      }
    }
  }
 
  Sensor(String sensor_name, String csv_header)
      : Sensor(sensor_name, csv_header, 0UL) {}
 
  Sensor(String sensor_name, String csv_header, int fields)
      : Sensor(sensor_name, csv_header) {}
 
  Sensor(String sensor_name, String csv_header, int fields,
         unsigned long minimum_period)
      : Sensor(sensor_name, csv_header, minimum_period) {}
 
  unsigned long getPeriod() const { return minimum_period; }
 
  void setPeriod(int minimum_period) { this->minimum_period = minimum_period; }
 
  unsigned long getLastExecution() const { return last_execution; }
 
  void setLastExecution(int last_execution) {
    this->last_execution = last_execution;
  }
 
  const String& getSensorCSVHeader() const { return this->csv_header; }
 
  virtual bool verify() = 0;
 
  virtual String readData() = 0;
 
  virtual void readDataPacket(uint8_t*& packet) {};
 
  virtual String decodeToCSV(uint8_t*& packet) {
    return "(" + this->getDeviceName() + " data), ";
  };
 
  void getDataPacket(uint32_t& sensor_id, uint8_t*& packet) {
    if (millis() - this->last_execution >= this->minimum_period) {
      uint8_t* before = packet;
      readDataPacket(packet);
 
      sensor_id = (sensor_id << 1);
      if (packet != before) {
        this->last_execution = millis();
        sensor_id |= 1;
      }
    } else {
      sensor_id = (sensor_id << 1) | 0;
    }
  }
 
  String readEmpty() const { return this->empty_csv; }
 
  String getDataCSV() {
    if (millis() - this->last_execution >= this->minimum_period) {
      this->last_execution = millis();
      return readData();
    } else {
      return readEmpty();
    }
  }
};
 
#endif