esp32-car/src/storage.cpp

#include "storage.h"

bool Storage::isMounted;

void Storage::init()
{
  if (!SPIFFS.begin(true))
  {
    Serial.println("SPIFFS Mount Failed");
    isMounted = false;
  }
  else
    isMounted = true;
}

unsigned int Storage::getSensitivity()
{
  if (!isMounted)
    return 0xFF;

  File file = SPIFFS.open("/sensitivity.txt", "r");
  if (!file)
    return 0xFF;

  String sensitivity = file.readStringUntil('\n');
  file.close();

  return sensitivity.toInt();
}

void Storage::setSensitivity(unsigned int sensitivity)
{
  if (!isMounted)
    return;

  File file = SPIFFS.open("/sensitivity.txt", "w");
  file.println(sensitivity);
  file.close();
}

void Storage::setPID(float kp, float ki, float kd)
{
  if (!isMounted)
    return;

  File file = SPIFFS.open("/pid.txt", "w");
  file.println(kp);
  file.println(ki);
  file.println(kd);
  file.close();
}

void Storage::getPID(float &kp, float &ki, float &kd)
{
  if (!isMounted)
    return;

  File file = SPIFFS.open("/pid.txt", "r");
  kp = file.readStringUntil('\n').toFloat();
  ki = file.readStringUntil('\n').toFloat();
  kd = file.readStringUntil('\n').toFloat();
  file.close();
}

void Storage::setName(String name)
{
  if (!isMounted)
    return;

  File file = SPIFFS.open("/name.txt", "w");
  file.println(name);
  file.close();
}

String Storage::getName()
{
  if (!isMounted)
    return "";

  File file = SPIFFS.open("/name.txt", "r");
  String name = file.readStringUntil('\n');
  file.close();

  return name;
}