<?php

declare(strict_types=1);

namespace App\State;

use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProviderInterface;
use App\ApiResource\EnvironmentHealth;
use App\Repository\EnvironmentRepository;
use App\Service\DockerService;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

final readonly class EnvironmentHealthProvider implements ProviderInterface
{
    public function __construct(
        private EnvironmentRepository $environmentRepository,
        private DockerService $dockerService,
    ) {}

    public function provide(Operation $operation, array $uriVariables = [], array $context = []): EnvironmentHealth
    {
        $id = $uriVariables['id'] ?? null;
        $environment = $id ? $this->environmentRepository->find($id) : null;

        if (null === $environment) {
            throw new NotFoundHttpException(sprintf('Environment "%s" not found.', $id));
        }

        $containerName = $environment->getContainerName();
        $status = $this->dockerService->getContainerStatus($containerName);
        $stats = $this->dockerService->getContainerStats($containerName);

        $dto = new EnvironmentHealth();
        $dto->status = $status['status'];
        $dto->version = $status['version'];
        $dto->startedAt = $status['startedAt'];
        $dto->cpuPercent = $stats['cpuPercent'];
        $dto->memoryUsage = $stats['memoryUsage'];
        $dto->memoryLimit = $stats['memoryLimit'];
        $dto->memoryPercent = $stats['memoryPercent'];

        return $dto;
    }
}