<?php

namespace App\Livewire;

use App\Models\Metric;
use App\Services\SystemHealth;
use Livewire\Attributes\Layout;
use Livewire\Component;

#[Layout('layouts.app')]
class Host extends Component
{
    /** @var array<int, array{key:string,label:string,icon:string,state:string,detail:string}> */
    public array $services = [];

    public ?string $checkedAt = null;

    public function mount(): void
    {
        $this->refreshHealth();
    }

    public function refreshHealth(): void
    {
        $this->services = app(SystemHealth::class)->services();
        $this->checkedAt = now()->format('H:i:s');
    }

    public function worstState(): string
    {
        $states = array_column($this->services, 'state');

        return in_array('offline', $states, true) ? 'offline'
            : (in_array('warning', $states, true) ? 'warning' : 'online');
    }

    public function problemCount(): int
    {
        return count(array_filter($this->services, fn ($s) => $s['state'] !== 'online'));
    }

    public function chartConfig(): array
    {
        $metrics = Metric::orderByDesc('sampled_at')->limit(60)->get()->reverse()->values();

        return [
            'labels' => $metrics->map(fn ($m) => $m->sampled_at->format('H:i'))->all(),
            'series' => [
                ['key' => 'mqtt', 'label' => __('host.chart_mqtt'), 'color' => '--color-accent', 'axis' => 'y', 'data' => $metrics->pluck('mqtt_messages')->all()],
                ['key' => 'cpu', 'label' => __('host.chart_cpu'), 'color' => '--color-online', 'axis' => 'y', 'data' => $metrics->pluck('cpu_load')->all()],
                ['key' => 'mem', 'label' => __('host.chart_mem'), 'color' => '--color-warning', 'axis' => 'y1', 'data' => $metrics->pluck('mem_used_pct')->all()],
            ],
        ];
    }

    public function render()
    {
        return view('livewire.host', [
            'chart' => $this->chartConfig(),
            'hasMetrics' => Metric::exists(),
        ]);
    }
}