package com.zy.common.config;

import com.core.annotations.ManagerAuth;
import com.core.common.BaseRes;
import com.core.common.Cools;
import com.zy.common.utils.Http;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.lang.Nullable;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.lang.reflect.Method;

/**
 * Created by vincent on 2019-06-13
 */
@Component
public class AdminInterceptor extends HandlerInterceptorAdapter {

    @Value("${super.pwd}")
    private String superPwd;


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        cors(response);
        if (handler instanceof org.springframework.web.servlet.resource.ResourceHttpRequestHandler) {
            return true;
        }
        // super账号
        String token = request.getHeader("token");
        if (token!=null) {
            String deToken = Cools.deTokn(token, superPwd);
            if (deToken!=null){
                long timestamp = Long.parseLong(deToken.substring(0, 13));
                // 1天后过期
                if (System.currentTimeMillis() - timestamp > 86400000){
                    Http.response(response, BaseRes.DENIED);
                    return false;
                }
                if ("super".equals(deToken.substring(13))) {
                    request.setAttribute("userId", 9527);
                    return true;
                }
            }
        }
        // 跨域设置
        // response.setHeader("Access-Control-Allow-Origin", "*");
        HandlerMethod handlerMethod = (HandlerMethod) handler;
        Method method = handlerMethod.getMethod();
        if (method.isAnnotationPresent(ManagerAuth.class)){
            ManagerAuth annotation = method.getAnnotation(ManagerAuth.class);
            if (annotation.value().equals(ManagerAuth.Auth.CHECK)){
                return check(request, response, annotation.memo());
            }
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, @Nullable ModelAndView modelAndView) {
//        Object obj = request.getAttribute("operateLog");
//        if (obj instanceof OperateLog) {
//            OperateLog operate = (OperateLog) obj;
//            operate.setResponse(String.valueOf(response.getStatus()));
//            operateLogService.insert(operate);
//        }
    }

    private boolean check(HttpServletRequest request, HttpServletResponse response, String memo) {
            return true;
    }



    /**
     * 跨域
     */
    private void cors(HttpServletResponse response){
        // 跨域设置
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "*");
        response.setHeader("Access-Control-Allow-Headers", "Content-Type,Access-Token");
        response.setHeader("Access-Control-Expose-Headers", "*");

    }

}