<?php

namespace App\Filament\Widgets\Charts;

class HelperMoveingAverage
{
    public static function get(&$data)
    {
        if (! $data) {
            return;
        }

        $data['labels'] = array_slice($data['labels'], 2);

        $datasets = $data['datasets'];
        foreach ($datasets as $k => $dataset) {
            $arr = $dataset['data'];
            $new = [];
            $last = count($arr);
            foreach ($arr as $key => $value) {
                if ($key == 1 && $last > 2) {
                    $new[] = round(((float) $arr[0] + (float) $value + (float) $arr[2]) / 3, 1);
                } elseif ($key > 1 && $key < $last - 1) {
                    $new[] = round(((float) $arr[$key - 1] + (float) $value + (float) $arr[$key + 1]) / 3, 1);
                }
            }
            $data['datasets'][$k]['data'] = $new;
        }
    }
}