jsowell-charger-web/jsowell-pile/src/main/java/com/jsowell/wxpay/service/WxAppletRemoteService.java

package com.jsowell.wxpay.service;

import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import com.jsowell.common.constant.Constants;
import com.jsowell.common.core.redis.RedisCache;
import com.jsowell.common.enums.ykc.ReturnCodeEnum;
import com.jsowell.common.exception.BusinessException;
import com.jsowell.common.util.DateUtils;
import com.jsowell.common.util.StringUtils;
import com.jsowell.common.util.http.HttpUtils;
import com.jsowell.pile.service.IOrderBasicInfoService;
import com.jsowell.pile.service.IPileBillingTemplateService;
import com.jsowell.pile.vo.uniapp.CurrentTimePriceDetails;
import com.jsowell.pile.vo.uniapp.SendMessageVO;
import com.jsowell.wxpay.config.WeixinLoginProperties;
import com.jsowell.wxpay.dto.AppletTemplateMessageSendDTO;
import com.jsowell.wxpay.dto.WechatSendMsgDTO;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.text.ParseException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@Service
public class WxAppletRemoteService {

	private Logger log = LoggerFactory.getLogger(WxAppletRemoteService.class);

	private static final String WX_APPLET_URl = "https://api.weixin.qq.com/cgi-bin";

	private static final String GET_USER_PHONE_NUMBER_URL = "https://api.weixin.qq.com/wxa/business/getuserphonenumber";

	@Autowired
	private ObjectMapper objectMapper;

	@Autowired
	private RedisCache redisCache;

	@Autowired
	private IOrderBasicInfoService orderBasicInfoService;

	@Autowired
	private IPileBillingTemplateService pileBillingTemplateService;

	@Value("${weixin.login.appid}")
	private String appid;

	@Value("${weixin.login.appsecret}")
	private String secret;

	@Value("${weixin.sendMsg.startChargingTmpId}")
	private String startChargingTmpId;

	@Value("${weixin.sendMsg.stopChargingTmpId}")
	private String stopChargingTmpId;

	/**
	 * 获取accessToken
	 *
	 * @return
	 */
	public String getAccessToken() {
		// String appid = Constants.APP_ID;
		// String secret = Constants.APP_SECRET;

		// 这里我是从配置文件中取得appid和appsecret
		// appid = properties.getAppId();
		// secret = properties.getAppSecret();

		//查询token是否存在
		String redisKey = "AccessToken_" + appid;
		// 使用缓存先查询AccessToken是否存在
		String accessToken = redisCache.getCacheObject(redisKey);
		// 存在直接返回，不存在重新获取AccessToken
		if (!Strings.isNullOrEmpty(accessToken)) {
			return accessToken;
		}
		// 获取AccessToken的url
		String grantType = "client_credential";
		// https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=
		String url = WX_APPLET_URl + "/token?grant_type=" + grantType + "&appid=" + appid + "&secret=" + secret;
		// 获取到AccessToken
		String token = HttpUtils.sendGet(url);
		Map<String, Object> map = null;
		try {
			map = objectMapper.readValue(token, Map.class);
		} catch (IOException e) {
			log.error("小程序异常通知-获取AccessToken-转化异常", e);
		}
		String access_token = String.valueOf(map.get("access_token"));
		// 把AccessToken存入缓存中，并设置过期时间，因为access_token的过期时间是两小时，我们缓存的时间一定要小于两小时，
		redisCache.setCacheObject(redisKey, access_token, 300);
		if (map.get("errcode") != null || map.get("errmsg") != null) {
			String errcode = String.valueOf(map.get("errcode"));
			String errmsg = String.valueOf(map.get("errmsg"));
			if (!errcode.equals("0")) {
				log.error("获取token失败：code=" + errcode + "msg=" + errmsg);
				return null;
			}
		}
		return access_token;
	}

	/**
	 * 获取手机号
	 *
	 * @param code
	 * @return
	 */
	public String getMobileNumberByCode(String code) {
		if (StringUtils.isBlank(code)) {
			throw new BusinessException(ReturnCodeEnum.CODE_PARAM_NOT_NULL_ERROR);
		}
		// 请求获取令牌
		String access_token = getAccessToken();
		// 通过token，code（前端getPhoneNum按钮返回的code，而不是登录的code）发送post请求到官方获取到手机号码
		String postUrl = GET_USER_PHONE_NUMBER_URL + "?access_token=" + access_token;
		JSONObject paramJson = new JSONObject();
		paramJson.put("code", code);
		String postResult = HttpUtils.sendPost(postUrl, paramJson.toJSONString());
		JSONObject postResultJson = JSONObject.parseObject(postResult);
		String errCode = postResultJson.getString("errcode");

		if (!StringUtils.equals(errCode, Constants.ZERO)) {
			// errCode不为0，表示有错误
			String errMsg = postResultJson.getString("errmsg");
			log.info("发送Post请求失败,错误消息：{}", errMsg);
			throw new BusinessException(errCode, errMsg);
		}
		JSONObject phoneInfoJson = (JSONObject) postResultJson.get("phone_info");
		return phoneInfoJson.getString("phoneNumber");
	}

	/**
	 * 获取openId
	 *
	 * @param code
	 * @return
	 */
	public String getOpenIdByCode(String code) {
		String baseAccessTokenUrl = WeixinLoginProperties.WX_OPEN_GATEWAY +
				"?appid=%s" +
				"&secret=%s" +
				"&js_code=%s" +
				"&grant_type=authorization_code";

		log.info("appid:{},appscrect:{}", WeixinLoginProperties.WX_OPEN_APP_ID, WeixinLoginProperties.WX_OPEN_APP_SECRET);

		String accessTokenUrl = String.format(baseAccessTokenUrl, WeixinLoginProperties.WX_OPEN_APP_ID, WeixinLoginProperties.WX_OPEN_APP_SECRET, code);

		//2：执行请求，获取微信请求返回得数据
		String result = HttpUtils.sendGet(accessTokenUrl);

		// 3： 对微信返回得数据进行转换
		Map<String, Object> resultMap = JSONObject.parseObject(result, HashMap.class);
		log.info("微信返回的日志信息是：code:{}，resultMap：{}", code, resultMap);
		if (resultMap.get("errcode") != null) {
			throw new BusinessException("22006", "微信登录出错!");
		}

		// 4: 解析微信用户得唯一凭证openid
		String openid = (String) resultMap.get("openid");
		if (StringUtils.isBlank(openid)) {
			throw new BusinessException("22009", "登录失败，尝试刷新重新扫码登录!!!");
		}

		// 5：封装返回
		return openid;
	}

	/**
	 * 开始充电发送消息
	 * @param dto
	 * @return
	 */
	public Map<String, String> startChargingSendMsg(WechatSendMsgDTO dto) {
		// 通过code查询openId并set
		String openId = getOpenIdByCode(dto.getCode());
		if (StringUtils.isBlank(openId)) {
			return null;
		}
		AppletTemplateMessageSendDTO msgInfo = new AppletTemplateMessageSendDTO();
		msgInfo.setType("1"); // 1-开始充电推送消息
		msgInfo.setTouser(openId);
		// 通过orderCode查询到充电站点和开始时间并set
		String orderCode = dto.getOrderCode();
		SendMessageVO sendMessageVO = orderBasicInfoService.selectOrderInfoByOrderCode(orderCode);

		AppletTemplateMessageSendDTO.StartChargingMessage startChargingMessage = new AppletTemplateMessageSendDTO.StartChargingMessage();
		msgInfo.setStartChargingMessage(startChargingMessage);
		if (StringUtils.isBlank(sendMessageVO.getChargeStartTime())) {
			startChargingMessage.setStartTime(DateUtils.dateTimeNow("yyyy-MM-dd HH:mm"));
		}else {
			startChargingMessage.setStartTime(sendMessageVO.getChargeStartTime()); // 开始时间
		}
		startChargingMessage.setStationName(sendMessageVO.getStationName()); // 站点名称

		// 订单编号
		startChargingMessage.setOrderCode(sendMessageVO.getOrderCode());
		// 收费标准
		CurrentTimePriceDetails currentTimePriceDetails = pileBillingTemplateService.getCurrentTimePriceDetails(sendMessageVO.getStationId());
		startChargingMessage.setTotalPrice(currentTimePriceDetails.getTotalPrice() + " 元/度");
		// 枪口编号
		startChargingMessage.setPileConnectorCode(sendMessageVO.getPileSn() + "桩" + sendMessageVO.getConnectorCode() + "枪口");

		return uniAppSendMsg(msgInfo);
	}


	/**
	 * 停止充电发送消息
	 * @param dto
	 * @return
	 */
	public Map<String, String> stopChargingSendMsg(WechatSendMsgDTO dto) throws ParseException {
		// 通过订单号查询订单金额
		AppletTemplateMessageSendDTO msgInfo = new AppletTemplateMessageSendDTO();
		SendMessageVO sendMessageVO = orderBasicInfoService.selectOrderInfoByOrderCode(dto.getOrderCode());

		msgInfo.setType("2"); // 2-结束充电推送消息
		msgInfo.setTouser(sendMessageVO.getOpenId());
		// 封装对象并调用发送消息的方法
		AppletTemplateMessageSendDTO.StopChargingMessage stopChargingMessage = new AppletTemplateMessageSendDTO.StopChargingMessage();
		msgInfo.setStopChargingMessage(stopChargingMessage);

		stopChargingMessage.setChargingAmount(sendMessageVO.getOrderAmount()); // 订单金额
		stopChargingMessage.setEndReason(sendMessageVO.getStopReason()); // 结束原因
		stopChargingMessage.setOrderCode(sendMessageVO.getOrderCode()); // 订单号
		stopChargingMessage.setChargingDegree(sendMessageVO.getChargingDegree()); // 充电度数
		Date chargeStartTime = DateUtils.parseDate(sendMessageVO.getChargeStartTime(), DateUtils.YYYY_MM_DD_HH_MM_SS);
		Date chargeStopTime = DateUtils.parseDate(sendMessageVO.getChargeStopTime(), DateUtils.YYYY_MM_DD_HH_MM_SS);
		String chargingTime = DateUtils.getDatePoor(chargeStopTime, chargeStartTime);

		stopChargingMessage.setChargingTime(chargingTime); // 充电时长

		// if (StringUtils.isBlank(sendMessageVO.getChargeStopTime())) {
		// 	stopChargingMessage.setEndTime(DateUtils.dateTimeNow("yyyy-MM-dd HH:mm"));
		// }else {
		// 	stopChargingMessage.setEndTime(sendMessageVO.getChargeStopTime());
		// }
		return uniAppSendMsg(msgInfo);
	}

	/**
	 * 小程序发送消息方法
	 * @param dto
	 * @return
	 */
	private Map<String, String> uniAppSendMsg(AppletTemplateMessageSendDTO dto) {
		// 判断是什么场景调用此方法（1-开始充电推送消息；2-充电结束推送消息）
		String type = dto.getType();
		// 根据不同的场景set不同的对象
		if (StringUtils.equals("1", type)) {
			// 开始充电
			String templateId = startChargingTmpId;
			dto.setTemplate_id(templateId);
			// dto.setPage("跳转的页面");
			Map<String, Object> map = new HashMap<>();
			map.put("thing5", ImmutableMap.of("value", dto.getStartChargingMessage().getStationName())); // 充电站名称
			map.put("time2", ImmutableMap.of("value", dto.getStartChargingMessage().getStartTime())); // 开始时间
			map.put("character_string11", ImmutableMap.of("value", dto.getStartChargingMessage().getOrderCode())); // 订单编号
			map.put("thing7", ImmutableMap.of("value", dto.getStartChargingMessage().getPileConnectorCode())); // 充电插座
			map.put("thing13", ImmutableMap.of("value", dto.getStartChargingMessage().getTotalPrice())); // 收费标准
			dto.setData(map);
		} else if (StringUtils.equals("2", type)) {
			// 结束充电
			String templateId = stopChargingTmpId;
			dto.setTemplate_id(templateId);
			// dto.setPage("跳转的页面");
			Map<String, Object> map = new HashMap<>();
			map.put("character_string5", ImmutableMap.of("value", dto.getStopChargingMessage().getOrderCode())); // 充电金额
			map.put("amount17", ImmutableMap.of("value", dto.getStopChargingMessage().getChargingAmount())); // 充电金额
			// map.put("time3", ImmutableMap.of("value", dto.getStopChargingMessage().getEndTime())); // 结束时间
			map.put("thing7", ImmutableMap.of("value", dto.getStopChargingMessage().getEndReason())); // 结束原因
			map.put("thing22", ImmutableMap.of("value", dto.getStopChargingMessage().getChargingTime())); // 充电时长
			map.put("number13", ImmutableMap.of("value", dto.getStopChargingMessage().getChargingDegree())); // 充电度数
			dto.setData(map);
		}
		// 调用下面的发送消息接口
		return uniformMessageSend(dto);
	}

	/**
	 * 同一消息发送接口
	 * AppletTemplateMessageSendDTO   是一个传输类
	 */
	public Map<String, String> uniformMessageSend(AppletTemplateMessageSendDTO data) {
		String token = getAccessToken();
		// 调用发型接口
		String url = WX_APPLET_URl + "/message/subscribe/send?access_token=" + token;
		String returnData = HttpUtils.sendPost(url, JSON.toJSONString(data));
		Map<String, Object> map = null;
		try {
			map = objectMapper.readValue(returnData, Map.class);
		} catch (IOException e) {
			log.error("小程序异常通知-同一消息发送-转化异常", e);
		}
		String errcode = String.valueOf(map.get("errcode"));
		String errmsg = String.valueOf(map.get("errmsg"));
		if (!errcode.equals(Constants.ZERO)) {
			log.error("消息发送失败：code=" + errcode + "msg=" + errmsg);
		}
		Map<String, String> resultMap = new HashMap<>();
		resultMap.put("code", errcode);
		resultMap.put("message", errmsg);
		return resultMap;
	}
}