import { weixinSdk } from './weixin';

export type ClientGpsLocation = {
  province?: string;
  city?: string;
  district?: string;
  latitude: number;
  longitude: number;
  address?: string;
};

/** 尝试获取客户端 GPS（微信 JSSDK / 浏览器 Geolocation），失败返回 null 不阻塞下单 */
export async function tryGetClientGpsLocation(): Promise<ClientGpsLocation | null> {
  if (process.env.TARO_ENV === 'weapp') {
    try {
      const Taro = (await import('@tarojs/taro')).default;
      const loc = await new Promise<{ latitude: number; longitude: number }>((resolve, reject) => {
        Taro.getLocation({
          type: 'gcj02',
          success: resolve,
          fail: reject,
        });
      });
      return { latitude: loc.latitude, longitude: loc.longitude };
    } catch {
      return null;
    }
  }

  const loc = await weixinSdk.getLocation();
  if (!loc) return null;
  return {
    latitude: loc.latitude,
    longitude: loc.longitude,
  };
}