public static function addWatt($unitId, $wattVal)
{
//gi-add up ang values sa watt in one minute
if (Watts::where('unit_id', $unitId)->where('created_at', '>', Carbon\Carbon::now()->addMinutes(-1))->count() > 0) {
$watts = Watts::where('unit_id', $unitId)->orderBy('created_at', 'desc')->first();
$watts->watts += $wattVal;
} else {
//mag create utro ug record kung lapas na one minute
$watts = new Watts();
$watts->unit_id = $unitId;
$watts->watts = $wattVal;
}
$watts->save();
}
