<?php

namespace Extend\Tencent\map;

use App\Constants\HttpEnumCode;
use App\Exception\BusinessException;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;
use Hyperf\Di\Annotation\Inject;
use Hyperf\Utils\ApplicationContext;
use Psr\Container\ContainerExceptionInterface;
use Psr\Container\ContainerInterface;
use Psr\Container\NotFoundExceptionInterface;
use function \Hyperf\Config\config;
/**
 * 腾讯地图
 */
class Location
{
    #[Inject]
    protected ContainerInterface $container;

    #[Inject]
    protected Client $client;

    /**
     * @throws ContainerExceptionInterface
     * @throws NotFoundExceptionInterface
     */
    public function __construct()
    {
        $this->container = ApplicationContext::getContainer();
        $this->client = $this->container->get(Client::class);
    }

    /**
     * 计算签名
     * @param string $path
     * @param array $query
     * @return string
     */
    private function getSign(string $path,array $query): string
    {
        ksort($query);

        // 拼接请求参数
        $queryString = urldecode(http_build_query($query));

        // 拼接签名字符串
        $signatureStr = $path . '?' . $queryString . config("tencent_map.key");

        // 计算签名，取MD5的小写形式
        $sig = md5($signatureStr);

        // 将签名添加到参数中
        $query['sig'] = $sig;
        return $path . '?' . http_build_query($query);
    }
    /**
     * 逆地址解析-根据经纬度获取地址
     * @param string $lon 经度，范围为 -180~180，负数表示西经
     * @param string $lat 纬度，范围为 -90~90，负数表示南纬
     * @return array
     */
    public function getLocation(string $lon,string $lat): array
    {
        $query = [
            "key" => config("tencent_map.secret"),
            "location" => $lon . "," . $lat,
        ];

        $path = "https://apis.map.qq.com" . $this->getSign("/ws/geocoder/v1",$query);
        try {
            $response = $this->client->get($path);
            if ($response->getStatusCode() != '200') {
                // 请求失败
                throw new BusinessException($response->getBody()->getContents());
            }
            $body = json_decode($response->getBody(), true);
            if (empty($body)) {
                // 返回值为空
                throw new BusinessException(HttpEnumCode::getMessage(HttpEnumCode::SERVER_ERROR));
            }

            if ($body['status'] != 0){
                throw new BusinessException(HttpEnumCode::getMessage(HttpEnumCode::SERVER_ERROR));
            }

            if (empty($body['result'])){
                return [];
            }

            return $body['result'];
        } catch (GuzzleException $e) {
            throw new BusinessException($e->getMessage());
        }
    }
}