SD Card Configuration File

let sp = {
pumpMode:0,
resFull:99,
resCall:80,
resLow:50,
minFlow:150,
maxFlow:320,
pumpHours:244
};




let cfg = {
changed:false,
lastSaved:now(),

load: function(){

let res = sd.read("setpoints.json");
if(!res.error){
  sp = JSON.parse(res.data);
} else {
  print("Failed to load configuration: ", string(res));
}

},

  save:function(){
  if(this.changed || this.lastSaved.sAgo() > 86400){ // save the setpoints immediately if changed otherwise daily to write the pump hours

  let res = sd.write("setpoints.json",string(sp));

    // Save a backup at least once a month in a seperate year month labeled file
    let date = datetime();
    let dateString = '/LOG/sp-' + string(date.year) + '-' + string(date.month) + '.json';
    sd.write(dateString,string(sp));

  if(res){
    log("Failed to save setpoints to SD Card",alm.warn);
    return false;
  }
  return true;
  }
}
};


cfg.load(); // Load the configuration initially 

while(run()){

waitMS(1000);
cfg.save();

}