<?php

namespace App\Actions\Statistics;

class MoveingAverage
{
    public static function get(&$data)
    {

        // dd($data);

        $arr = $data['datasets'][0]['data'];

        $new = [];
        $last = count($arr);
        $second_last = $last--;
        foreach ($arr as $key => $value) {
            switch ($key) {
                case 0:
                    $new[] = $value;
                    break;
                case 1:
                    $new[] = ($arr[0] + $value) / 2;
                    break;
                case $second_last:
                    $new[] = ($arr[$second_last] + $arr[$last]) / 2;
                    break;
                case $last:
                    $new[] = $arr[$last];
                    break;
                default:
                    $before = $key--;
                    $after = $key++;
                    $new[] = ($arr[$before] + $value + $arr[$after]) / 3;
                    break;
            }
        }
        // $data['datasets'][0]['backgroundColor'] = '#00a63e';
        $data['datasets'][0]['borderColor'] = '#00a63e';
        // $data['datasets'][0]['fill'] = true;
        $data['datasets'][0]['tension'] = 0.5;
        // $data['datasets'][0]['borderRadius'] = 30;
        $data['datasets'][0]['data'] = $new;
    }
}