<?php

namespace App\Services\Deployment;

/**
 * A célkörnyezetek (e2e, d2d) feloldása a config/deployment.php-ból.
 *
 * A target nem utólagos címke: már a csomagoláskor rögzül, mert befolyásolja a
 * mappanevet, a teendők listáját, a kezdő commit előtöltését és a naplót is.
 */
class DeploymentTargets
{
    /**
     * @return array<string, array{key:string, label:string, domain:string, remote_path:string, expected_branch:?string, services:array<string, string>, services_note:?string}>
     */
    public function all(): array
    {
        /** @var array<string, array<string, mixed>> $targets */
        $targets = (array) config('deployment.targets', []);

        $resolved = [];

        foreach ($targets as $key => $target) {
            $resolved[$key] = array_merge(
                [
                    'label' => $key,
                    'domain' => '',
                    'remote_path' => '',
                    'expected_branch' => null,
                    'services' => [],
                    'services_note' => null,
                ],
                $target,
                ['key' => $key],
            );
        }

        return $resolved;
    }

    /**
     * A célkörnyezet hosszan futó service-einek újraindító parancsai.
     *
     * @return array<int, string>
     */
    public function restartCommands(?string $key): array
    {
        $target = $this->find($key);

        if (! $target || $target['services'] === []) {
            return [];
        }

        $user = (string) config('deployment.swarm.user', 'root');
        $host = (string) config('deployment.swarm.host');

        return array_values(array_map(
            fn (string $service): string => sprintf(
                'ssh %s@%s "docker service update --force %s"',
                $user,
                $host,
                $service,
            ),
            $target['services'],
        ));
    }

    /**
     * @return array{key:string, label:string, domain:string, remote_path:string, expected_branch:?string, services:array<string, string>, services_note:?string}|null
     */
    public function find(?string $key): ?array
    {
        return $key ? ($this->all()[$key] ?? null) : null;
    }

    /**
     * @return array<string, string>
     */
    public function options(): array
    {
        return array_map(fn (array $target): string => $target['label'], $this->all());
    }

    public function defaultKey(): ?string
    {
        return array_key_first($this->all());
    }
}