<?php

namespace App\Livewire;

use App\Services\PrometheusService;
use Filament\Support\RawJs;
use LaraZeus\InlineChart\InlineChartWidget;
use phpDocumentor\Reflection\Types\Null_;

class MetricWidgetChart extends InlineChartWidget
{
    private const MAX_POINTS = 24;

    protected static ?string $maxHeight = '65px';

//    public int $maxWidth = 1000;
    protected function getData(): array
    {
        $prometheus = new PrometheusService();
        date_default_timezone_set('Asia/Shanghai');

        $query1 = $this->record->name . '{data="real"}';


        $start = now()->now()->subMinutes(2)->timestamp;
        $end = now()->timestamp;
        $step = 5;
        $realdata = $prometheus->queryRange($query1, $start, $end, $step);


        // 检查查询结果是否有数据
        if (empty($realdata['data']['result'])) {
            // 如果没有数据，返回一个空数据集或提示信息
            return [
                'labels' => [],
                'datasets' => [],
            ];
        }

        if (!empty($realdata['data']['result'][0]['values'][1])) {

            // 获取内存使用率数据
            $realdataValue = array_column($realdata['data']['result'][0]['values'], 1, 0);

            // 只保留最新的 MAX_POINTS 个数据点
            $timestamps = array_keys($realdataValue);
            $timestamps = array_slice($timestamps, -self::MAX_POINTS);

            foreach ($timestamps as $timestamp) {
                $labels[] = date('H:i:s', $timestamp); // 格式化时间戳为小时:分钟:秒
                $data[] = round(floatval($realdataValue[$timestamp]), 2); // 取出每个时间点的内存使用率，并保留两位小数
            }
        }

        return [
            'labels' => $labels,
            'datasets' => [
                [
                    'label' => $this->record->name,
                    'data' => $data,
                    'borderColor' => '#4CAF50',
                    'backgroundColor' => 'rgba(76, 175, 80, 0.2)',
                    'fill' => true,
                    'tension' => 0.2,
                ],
            ],
        ];
    }
}