WebProvider.php

<?php

namespace ICanBoogie\CLDR\Provider;

use CurlHandle;
use ICanBoogie\CLDR\GitHub\UrlResolver;
use ICanBoogie\CLDR\Provider;

use function curl_exec;
use function curl_getinfo;
use function curl_init;
use function curl_setopt;
use function curl_setopt_array;
use function is_string;
use function json_decode;

use const CURLINFO_HTTP_CODE;
use const CURLOPT_FAILONERROR;
use const CURLOPT_RETURNTRANSFER;
use const CURLOPT_URL;

/**
 * Retrieves sections from the CLDR source using cURL.
 */
final class WebProvider implements Provider
{
    private CurlHandle $connection;

    public function __construct(
        private readonly UrlResolver $url_resolver = new UrlResolver()
    ) {
    }

    /**
     * @inheritDoc
     */
    public function provide(string $path): array
    {
        $connection = $this->obtain_connection();
        $url = $this->url_resolver->resolve($path);

        curl_setopt($connection, CURLOPT_URL, $url);

        $rc = curl_exec($connection);

        $http_code = curl_getinfo($connection, CURLINFO_HTTP_CODE);

        if ($http_code != 200) {
            throw new ResourceNotFound("Unable to fetch '$path', 'GET $url' responds with $http_code");
        }

        assert(is_string($rc));

        return json_decode($rc, true);
    }

    /**
     * Returns a reusable cURL connection.
     */
    private function obtain_connection(): CurlHandle
    {
        return $this->connection ??= $this->create_connection();
    }

    private function create_connection(): CurlHandle
    {
        $connection = curl_init();

        curl_setopt_array($connection, [

            CURLOPT_FAILONERROR => true,
            CURLOPT_RETURNTRANSFER => true

        ]);

        return $connection;
    }
}