<?php

namespace App\Filament\Widgets;

use App\Actions\Statistics\LoadEvents;
use Filament\Widgets\Concerns\InteractsWithPageFilters;
use Filament\Widgets\StatsOverviewWidget;
use Filament\Widgets\StatsOverviewWidget\Stat;

class MedianAverageWidget extends StatsOverviewWidget
{
    use InteractsWithPageFilters;

    protected function getStats(): array
    {
        $data = LoadEvents::load($this->filters);

        if (! isset($data['datasets'][0])) {
            return [];
        }

        $arr = $data['datasets'][0]['data'];
        $total = count($arr);
        $summe = array_sum($arr);

        if (! $total) {
            return [];
        }

        if ($total % 2) {
            $m = $total / 2 + 1;
            $median = $arr[$m];
        } else {
            $m = $total / 2;
            $m1 = floor($m);
            $m2 = ceil($m);
            $median = round(($arr[$m1] + $arr[$m2]) / 2, 2);
        }

        return [
            Stat::make('Number of events', $total),
            Stat::make('Average', round($summe / $total, 2)),
            Stat::make('Median', $median),
        ];
    }
}