package com.fzzy.appwx.util;


import com.alibaba.fastjson.JSONObject;
import com.fzzy.appwx.constant.WeChatConst;
import com.fzzy.igds.data.ConfigData;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;

/**
 * 微信工具类
 *
 * @author chen
 */
@Slf4j
@Component
public class WeChatUtil {

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    private ConfigData configData;

    /**
     * get请求
     *
     * @param url
     * @return
     */
    public String doGet(String url) {
        return restTemplate.getForObject(url, String.class);
    }


    /**
     * 根据网页授权code获取openid
     *
     * @param code
     * @return
     */
    public String getOpenid(String code) {

        String url = WeChatConst.OAUTH2_CODE_ACCESS_TOKEN_URL
                .replace("APPID", configData.getWxAppId())
                .replace("SECRET", configData.getWxSecret()).replace("CODE", code);

        String result = this.doGet(url);
        if (null == result) {
            return null;
        }
        JSONObject jsonObject = JSONObject.parseObject(result);
        return jsonObject.getString("openid");
    }

}