<?php

/** Ejemplo mínimo de cliente para la API SMM v2. */
final class ApiClient
{
    private string $apiUrl = 'https://tu-dominio.com/api/v2';
    private string $apiKey = 'TU_API_KEY';

    public function services(): array
    {
        return $this->request(['action' => 'services']);
    }

    public function balance(): array
    {
        return $this->request(['action' => 'balance']);
    }

    public function addOrder(array $order): array
    {
        return $this->request(['action' => 'add'] + $order);
    }

    public function status(int $orderId): array
    {
        return $this->request(['action' => 'status', 'order' => $orderId]);
    }

    public function refill(int $orderId): array
    {
        return $this->request(['action' => 'refill', 'order' => $orderId]);
    }

    private function request(array $payload): array
    {
        $curl = curl_init($this->apiUrl);
        curl_setopt_array($curl, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_POST => true,
            CURLOPT_POSTFIELDS => http_build_query(['key' => $this->apiKey] + $payload),
            CURLOPT_CONNECTTIMEOUT => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_SSL_VERIFYPEER => true,
        ]);

        $response = curl_exec($curl);
        if ($response === false) {
            throw new RuntimeException(curl_error($curl));
        }
        curl_close($curl);

        $decoded = json_decode($response, true);
        if (!is_array($decoded)) {
            throw new RuntimeException('La API devolvió una respuesta inválida.');
        }
        return $decoded;
    }
}

$api = new ApiClient();
$services = $api->services();
$balance = $api->balance();
$order = $api->addOrder([
    'service' => 1,
    'link' => 'https://example.com/publicacion',
    'quantity' => 100,
]);
$status = $api->status((int) ($order['order'] ?? 0));