/**

 * User: [一秋]

 * Date: 2017/9/4

 * Time: 10:17

 * Desc: 成功来源于点滴

 */

namespace app\lib\bin;

//高德地图API

header("Content-Type: text/html; charset=utf-8");

class Amap

{

    private $web_service_key;

    private $host ;

    public function __construct()

    {

        $this->web_service_key = 'your web key';//web服务key值

        $this->host = request()->host();

    }

    //静态地图

    public function staticMap($s_lng,$s_lat,$g_lng,$g_lat){

        $urlObj['size'] = "710*430";

//        $urlObj['zoom'] = 15;

        $urlObj['scale'] = 1;

        $urlObj['traffic'] = 0;

//        $urlObj['paths'] = '5,0x0000FF,1,,:113.709999,34.729698;113.740639,34.761528';

        $urlObj['markers'] = "-1,定位图标图片链接,0:$s_lng,$s_lat|-1,定位图标图片链接,0:$g_lng,$g_lat";

        $urlObj['key'] = $this->web_service_key;

        $bizString = $this->ToUrlParams($urlObj);

        $url = "http://restapi.amap.com/v3/staticmap?".$bizString;

        $info = $this->curl_get($url);

        $img_path = $this->generateImg($info);

        return $this->host.'/'.$img_path;

    }

    private function generateImg($img_info){

        $ret = [];

        $year = date('Ymd');

        $path = "uploads/$year";

        if (!is_dir($path)) {

            mkdir(iconv("UTF-8", "GBK", $path), 0777, true);

        }

        $imgname = 'amap'.$this->getMillisecond();

        $type = 'png';

        $new_file = $path.'/'.$imgname.".".$type;

        $a = file_put_contents($new_file,$img_info);

        if ($a) {

            return $path . '/' . $imgname . "." . $type;

        }

        return $ret;

    }

    /**

     * 拼接字符串

     */

    private function ToUrlParams($urlObj)

    {

        $buff = "";

        foreach ($urlObj as $k => $v)

        {

            if($k != "sign"){

                $buff .= $k . "=" . $v . "&";

            }

        }

        $buff = trim($buff, "&");

        return $buff;

    }

    /**

     * @param string $url get请求地址

     * @param int $httpCode 返回状态码

     * @return mixed

     */

   private function curl_get($url, &$httpCode = 0)

    {

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $url);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        //不做证书校验,部署在linux环境下请改为true

        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);

        $file_contents = curl_exec($ch);

        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

        curl_close($ch);

        return $file_contents;

    }

    // 获取毫秒值

    private  function getMillisecond()

    {

        list ($t1, $t2) = explode(' ', microtime());

        return ( float )sprintf('%.0f', (floatval($t1) + floatval($t2)) * 1000);

    }

}