package com.ld.igds.protocol.hikmedia;


import com.alibaba.fastjson.JSONObject;
import com.hikvision.artemis.sdk.ArtemisHttpUtil;
import com.hikvision.artemis.sdk.config.ArtemisConfig;
import com.ld.igds.protocol.hikmedia.data.ApiHikParam;
import com.ld.igds.protocol.hikmedia.data.CameraPlay;
import com.ld.igds.protocol.hikmedia.data.HikRespData;

import java.util.HashMap;
import java.util.Map;

/**
 * 海康视频流媒体API调用管理-预览相关
 */
public class ApiCameraPreview {

    private final static ApiCameraPreview instance = new ApiCameraPreview();

    private ApiCameraPreview() {
    }

    public static ApiCameraPreview getInstance() {
        return instance;
    }


    /**
     * 获取监控点预览取流URLv2
     *
     * @param param
     * @return
     */
    public HikRespData<CameraPlay> apiPreview(ApiHikParam param) {

        /**
         * STEP1：设置平台参数，根据实际情况,设置host appkey appsecret 三个参数.
         */
        ArtemisConfig.host = param.getWanIp() + ":" + param.getPort(); // 平台的ip端口
        ArtemisConfig.appKey = param.getAppKey();  // 密钥appkey
        ArtemisConfig.appSecret = param.getAppSecret();// 密钥appSecret

        /**
         * STEP2：设置OpenAPI接口的上下文
         */
        final String ARTEMIS_PATH = param.getArtemisPath();

        /**
         * STEP3：设置接口的URI地址
         */
        final String urlAPi = ARTEMIS_PATH + "/api/video/v2/cameras/previewURLs";


        Map<String, String> path = new HashMap<String, String>(2) {
            {
                put("http://", urlAPi);//根据现场环境部署确认是http还是https
            }
        };

        /**
         * STEP4：设置参数提交方式
         */
        String contentType = "application/json";

        /**
         * STEP5：组装请求参数
         */
        JSONObject jsonBody = new JSONObject();
        jsonBody.put("cameraIndexCode", param.getDeviceCode());
        jsonBody.put("streamType", 0);
        jsonBody.put("protocol", "hls");
        jsonBody.put("transmode", 1);
        jsonBody.put("expand", "transcode=0");
        jsonBody.put("streamform", "rtp");
        String body = jsonBody.toJSONString();

        /**
         * STEP6：调用接口
         */
        String result = ArtemisHttpUtil.doPostStringArtemis(path, body, null, null, contentType, null);// post请求application/json类型参数


        HikRespData<CameraPlay> data = JSONObject.parseObject(result, HikRespData.class);


        return data;
    }


}