connector-wordpress/source/includes/GraphQlClient.php

114 lines
3.3 KiB
PHP

<?php
namespace MobilizonConnector;
final class GraphQlClient {
public static function query(string $endpoint, string $query, array $variables = [], ?string $token = null): array
{
$headers = ['Content-Type: application/json'];
if ($token !== null) {
$headers[] = "Authorization: bearer $token";
}
$context = stream_context_create([
'http' => [
'method' => 'POST',
'header' => $headers,
'content' => json_encode(['query' => $query, 'variables' => $variables]),
]
]);
$data = @file_get_contents($endpoint, false, $context);
if ($data === false) {
$error = error_get_last();
throw new \ErrorException($error['message'], $error['type']);
}
return json_decode($data, true);
}
public static function get_upcoming_events(string $url, int $limit): array {
$query = <<<'GRAPHQL'
query ($limit: Int) {
events(limit: $limit) {
elements {
id,
title,
url,
beginsOn,
endsOn,
physicalAddress {
description,
locality
}
},
total
}
}
GRAPHQL;
$cachedEvents = EventsCache::get(['url' => $url, 'query' => $query, 'limit' => $limit]);
if ($cachedEvents !== false) {
return $cachedEvents;
}
$endpoint = $url . '/api';
$data = self::query($endpoint, $query, ['limit' => $limit]);
self::checkData($data);
$events = $data['data']['events']['elements'];
EventsCache::set(['url' => $url, 'query' => $query, 'limit' => $limit], $events);
return $events;
}
public static function get_upcoming_events_by_group_name(string $url, int $limit, string $groupName): array {
$query = <<<'GRAPHQL'
query ($afterDatetime: DateTime, $groupName: String!, $limit: Int) {
group(preferredUsername: $groupName) {
organizedEvents(afterDatetime: $afterDatetime, limit: $limit) {
elements {
id,
title,
url,
beginsOn,
endsOn,
physicalAddress {
description,
locality
}
},
total
}
}
}
GRAPHQL;
$afterDatetime = date(\DateTime::ISO8601);
$cachedEvents = EventsCache::get(['url' => $url, 'query' => $query, 'afterDatetime' => $afterDatetime, 'groupName' => $groupName, 'limit' => $limit]);
if ($cachedEvents !== false) {
return $cachedEvents;
}
$endpoint = $url . '/api';
$data = self::query($endpoint, $query, ['afterDatetime' => $afterDatetime, 'groupName' => $groupName, 'limit' => $limit]);
self::checkData($data);
$events = $data['data']['group']['organizedEvents']['elements'];
EventsCache::set(['url' => $url, 'query' => $query, 'afterDatetime' => $afterDatetime, 'groupName' => $groupName, 'limit' => $limit], $events);
return $events;
}
private static function checkData($data) {
if (isset($data['errors'])) {
if (count($data['errors']) > 0 &&
isset($data['errors'][0]['code']) &&
$data['errors'][0]['code'] === 'group_not_found') {
throw new GroupNotFoundException(serialize($data['errors'][0]));
} else {
throw new GeneralException(serialize($data['errors']));
}
}
}
}