AI 项目在线编辑器

<?php
declare(strict_types=1);

/**
 * 一个示例“外部信息”工具：用 Open-Meteo 获取天气（无需 API Key）
 * - 先通过 geocoding 找到经纬度
 * - 再拉当前天气
 *
 * 如果你的服务器不能访问外网，这个工具会失败，但不影响其它功能。
 */

function http_get_json(string $url, int $timeoutSec = 10): array
{
  $ch = curl_init($url);
  if ($ch === false) throw new RuntimeException('curl_init failed');
  curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CONNECTTIMEOUT => $timeoutSec,
    CURLOPT_TIMEOUT => $timeoutSec,
    CURLOPT_HTTPHEADER => ['Accept: application/json'],
  ]);
  $resp = curl_exec($ch);
  $errno = curl_errno($ch);
  $err = curl_error($ch);
  $status = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
  curl_close($ch);

if ($errno !== 0) throw new RuntimeException('cURL error: ' . $err);
  if ($status < 200 || $status >= 300) throw new RuntimeException('HTTP ' . $status);
  $data = json_decode((string)$resp, true);
  if (!is_array($data)) throw new RuntimeException('Invalid JSON');
  return $data;
}

return [
  'name' => 'get_weather',
  'description' => '根据城市名获取当前天气（Open-Meteo，无需Key）。',
  'parameters' => [
    'type' => 'object',
    'properties' => [
      'city' => ['type' => 'string', 'description' => '城市名，例如：上海、北京、Shenzhen'],
    ],
    'required' => ['city'],
  ],
  'run' => function(array $args, array $context) {
    $city = trim((string)$args['city']);
    if ($city === '') throw new RuntimeException('city 不能为空');

$geoUrl = 'https://geocoding-api.open-meteo.com/v1/search?count=1&language=zh&name=' . rawurlencode($city);
    $geo = http_get_json($geoUrl, 12);

$r = $geo['results'][0] ?? null;
    if (!is_array($r)) {
      return ['city' => $city, 'found' => false, 'message' => '未找到城市'];
    }

$lat = $r['latitude'];
    $lon = $r['longitude'];
    $name = $r['name'] ?? $city;
    $country = $r['country'] ?? '';
    $admin1 = $r['admin1'] ?? '';

$wxUrl = 'https://api.open-meteo.com/v1/forecast?latitude=' . rawurlencode((string)$lat)
      . '&longitude=' . rawurlencode((string)$lon)
      . '&current=temperature_2m,apparent_temperature,is_day,precipitation,weather_code,wind_speed_10m'
      . '&timezone=auto';

$wx = http_get_json($wxUrl, 12);
    $cur = $wx['current'] ?? null;

return [
      'found' => true,
      'query' => $city,
      'place' => trim($name . ' ' . $admin1 . ' ' . $country),
      'latitude' => $lat,
      'longitude' => $lon,
      'current' => $cur,
    ];
  },
];

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