<?php

/**
 * @copyright  2020 Podlibre
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
 * @link       https://castopod.org/
 */

use Config\Services;

if (!function_exists('fetch_osm_location')) {
    /**
     * Fetches places from Nominatim OpenStreetMap
     *
     * TODO: move this to Location object?
     *
     * @return array<string, string>|null
     */
    function fetch_osm_location(string $locationName): ?array
    {
        $osmObject = null;

        try {
            $client = Services::curlrequest();

            $response = $client->request(
                'GET',
                'https://nominatim.openstreetmap.org/search.php?q=' .
                    urlencode($locationName) .
                    '&polygon_geojson=1&format=jsonv2',
                [
                    'headers' => [
                        'User-Agent' => 'Castopod/' . CP_VERSION,
                        'Accept' => 'application/json',
                    ],
                ],
            );
            $places = json_decode(
                $response->getBody(),
                true,
                512,
                JSON_THROW_ON_ERROR,
            );

            $osmObject = [
                'geo' =>
                    empty($places[0]['lat']) || empty($places[0]['lon'])
                        ? null
                        : "geo:{$places[0]['lat']},{$places[0]['lon']}",
                'osm_id' => empty($places[0]['osm_type'])
                    ? null
                    : strtoupper(substr($places[0]['osm_type'], 0, 1)) .
                        $places[0]['osm_id'],
            ];
        } catch (Exception $exception) {
            //If things go wrong the show must go on
            log_message('critical', $exception);
        }

        return $osmObject;
    }
}