package com.idea.weixinPush;

import cn.hutool.core.date.DateUtil;
import cn.hutool.http.HttpUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import org.apache.commons.lang.StringUtils;

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

public class WeixinPushUtool {
    public static String access_token = null;
    public static Date access_token_time = null;

    public static final String TOKENURL = "https://api.weixin.qq.com/cgi-bin/token";
    public static final String MSGURL = "https://api.weixin.qq.com/cgi-bin/message/subscribe/send";

    //获取接口调用凭证
    public static String getAccessToken(){
        String grant_type = "client_credential";
        String appid = "wx85a804d3b1e38801";
        String secret = "961bb9e9eeab427d436434dcb05656c2";
        String result = HttpUtil.get(TOKENURL+"?grant_type="+grant_type+"&appid="+appid+"&secret="+secret);
        JSONObject jsonObject = JSONUtil.parseObj(result);
        return jsonObject.get("access_token").toString();
    }

    //发送微信订阅消息
    public void sendWXmsg(MsgTempleEnum tem, String userOpenId, String url, MiniprogramStateEnum state, Map<String, Object> data){
        if(!useful(access_token, access_token_time)){
            access_token = getAccessToken();
            access_token_time = new Date();
        }
        System.err.println("access_token——："+access_token);
        HashMap<String, Object> paramMap = new HashMap<>();
        paramMap.put("access_token", access_token);
        paramMap.put("touser", userOpenId);
        paramMap.put("template_id", tem.getValue());
        if(StringUtils.isNotBlank(url))
            paramMap.put("page", url);
        System.err.println("数据——："+JSONUtil.toJsonStr(data));
        paramMap.put("data", data);
        if(null != state)
            paramMap.put("miniprogram_state", state.getValue());
        String result = HttpUtil.post(MSGURL+"?access_token="+access_token, JSONUtil.toJsonStr(paramMap));
        System.err.println("发送消息接口返回——："+result);
    }

    //判断参数是否有效
    public static boolean useful(String str, Date data){
        if(StringUtils.isBlank(str))
            return false;
        if(DateUtil.offsetHour(data, 1).getTime() < new Date().getTime())
            return false;
        return true;
    }

    public static void main(String[] args) {
        getAccessToken();
//        System.err.println("getAccessToken_:"+);
    }

}