<?php

namespace Pterodactyl\Http\Controllers\Api\Client\Servers;

use Carbon\Carbon;
use Pterodactyl\Models\Server;
use Illuminate\Cache\Repository;
use Pterodactyl\Transformers\Api\Client\StatsTransformer;
use Pterodactyl\Repositories\Wings\DaemonServerRepository;
use Pterodactyl\Http\Controllers\Api\Client\ClientApiController;
use Pterodactyl\Http\Requests\Api\Client\Servers\GetServerRequest;

class ResourceUtilizationController extends ClientApiController
{
    /**
     * @var \Pterodactyl\Repositories\Wings\DaemonServerRepository
     */
    private DaemonServerRepository $repository;

    /**
     * @var \Illuminate\Cache\Repository
     */
    private Repository $cache;

    /**
     * ResourceUtilizationController constructor.
     */
    public function __construct(Repository $cache, DaemonServerRepository $repository)
    {
        parent::__construct();

        $this->cache = $cache;
        $this->repository = $repository;
    }

    /**
     * Return the current resource utilization for a server. This value is cached for up to
     * 20 seconds at a time to ensure that repeated requests to this endpoint do not cause
     * a flood of unnecessary API calls.
     *
     * @throws \Pterodactyl\Exceptions\Http\Connection\DaemonConnectionException
     */
    public function __invoke(GetServerRequest $request, Server $server): array
    {
        $stats = $this->cache
            ->tags(['resources'])
            ->remember($server->uuid, Carbon::now()->addSeconds(20), function () use ($server) {
                return $this->repository->setServer($server)->getDetails();
            });

        return $this->fractal->item($stats)
            ->transformWith($this->getTransformer(StatsTransformer::class))
            ->toArray();
    }
}