package com.yeshi.buwan.aspect;

import com.yeshi.buwan.domain.system.DetailSystem;
import com.yeshi.buwan.service.imp.SystemService;
import com.yeshi.buwan.util.JsonUtil;
import com.yeshi.buwan.util.Utils;
import com.yeshi.buwan.vo.AcceptData;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.yeshi.utils.StringUtil;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;

@Component
@Aspect
public class SignAspect {

    @Resource
    private SystemService systemService;


    //签名验证
    @Around("execution(public * com.yeshi.buwan.controller.api.*.*(..))")
    public Object verifySign(ProceedingJoinPoint joinPoint) throws Throwable {
        ServletRequestAttributes servletContainer = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = servletContainer.getRequest();
        HttpServletResponse response = servletContainer.getResponse();
        PrintWriter out = null;
        AcceptData acceptData = null;
        Object[] args = joinPoint.getArgs();
        for (Object obj : args) {
            if (obj instanceof AcceptData) {
                acceptData = (AcceptData) obj;
            } else if (obj instanceof PrintWriter) {
                out = (PrintWriter) obj;
            }
        }


        //如果是Android新版本则调用新的签名方法
        //布丸3.8.7之后调用新的签名方法
        if (acceptData != null && "android".equalsIgnoreCase(acceptData.getPlatform()) && acceptData.getVersion() >= 105) {
            Map<String, String[]> params = request.getParameterMap();
            //签名
            List<String> list = new ArrayList<>();
            for (Iterator<String> its = params.keySet().iterator(); its.hasNext(); ) {
                String key = its.next();
                if ("sign".equalsIgnoreCase(key))
                    continue;
                list.add(key + "=" + params.get(key)[0]);
            }
            Collections.sort(list);
            String str = StringUtil.concat(list, "&");
            String sign = StringUtil.Md5(str + "8888B&*@-uWan88/',@@^");
            if (!sign.equalsIgnoreCase(acceptData.getSign())) {
                if (out == null)
                    out = response.getWriter();
                out.print(JsonUtil.loadFalseJson("签名错误"));
                return null;
            }

        } else {
            if (!Utils.signIsRight(request)) {
                if (out == null)
                    out = response.getWriter();
                out.print(JsonUtil.loadFalseJson("签名错误"));
                return null;
            }
        }


        if (acceptData != null) {
            if ("ios".equalsIgnoreCase(acceptData.getPlatform())) {
                acceptData.setChannel("appstore");
            }
            if (acceptData.getPackageName().equalsIgnoreCase("com.doudou.ysvideo.lite")) {
                //小米上架使用
                if (!"xiaomi".equalsIgnoreCase(acceptData.getChannel())) {
                    acceptData.setPackageName("com.doudou.ysvideo");
                    acceptData.setChildPackage("com.doudou.ysvideo.lite");
                } else {
                    acceptData.setChildPackage("com.doudou.ysvideo.lite");
                }
            } else {
                acceptData.setChildPackage(acceptData.getPackage());
            }
            //注入detailSystem
            DetailSystem detailSystem = systemService.getDetailSystemByPackage(acceptData.getPackageName());
            acceptData.setDetailSystem(detailSystem);

            detailSystem = systemService.getDetailSystemByPackage(acceptData.getChildPackage());
            acceptData.setChildDetailSystem(detailSystem);
        }


        return joinPoint.proceed(args);
    }


}