<?php

namespace SparkPlug\Com\Noccy\Docker\DockerCompose;

use Symfony\Component\Yaml\Yaml;

class Stack 
{

    private array $compose;

    private string $version;

    private array $services;

    public function __construct(string $filename)
    {
        $this->compose = Yaml::parseFile($filename);

        $this->version = $this->compose['version']??null;
        $this->enumServices();
    }

    private function enumServices()
    {
        foreach ($this->compose['services'] as $service=>$config) {
            $this->services[$service] = new Service($config, $this);
        }
    }

    public function getServiceNames(): array
    {
        return array_keys($this->services);
    }

    public function getService(string $name): ?Service
    {
        return $this->services[$name] ?? null;
    }

}