package com.boman.wechat.controller;

import com.boman.domain.dto.WxMsgDto;
import com.boman.wechat.service.WxPushService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;
import java.util.Objects;

import static com.boman.wechat.utils.CheckAuthUtils.*;

/**
 * 微信登录验证
 *
 * @author zhong.h
 */
@RestController
@RequestMapping("/push/msg")
public class PushMsgController {

    private static final Logger LOGGER = LoggerFactory.getLogger(PushMsgController.class);

    @Autowired
    private WxPushService wxPushService;

    @GetMapping
    public void pushMsg(HttpServletRequest request, HttpServletResponse response) {
        // 微信加密签名，signature结合了开发者填写的token参数和请求中的timestamp参数、nonce参数。
        String signature = request.getParameter(SIGNATURE);
        // 时间戳
        String timestamp = request.getParameter(TIMESTAMP);
        // 随机数
        String nonce = request.getParameter(NONCE);
        // 随机字符串
        String echostr = request.getParameter(ECHOSTR);
        LOGGER.info("method: pushMsg, signature: {}, timestamp: {}, nonce: {}, echostr: {}", signature, timestamp, nonce, echostr);
        PrintWriter out = null;
        try {
            out = response.getWriter();
            if (checkSignature(signature, timestamp, nonce)) {
                out.print(echostr);
                out.flush();
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (Objects.nonNull(out)) {
                out.close();
            }
        }
    }

    @PostMapping("/pushMsg")
    public String pushMsg(@RequestBody WxMsgDto dto) {
       return wxPushService.pushToUser(dto.getIds(), dto.getParams());
    }
}