package com.doumee.config.Jwt;

import com.doumee.biz.system.SystemDictDataBiz;
import com.doumee.config.annotation.LoginRequired;
import com.doumee.config.annotation.UserLoginRequired;
import com.doumee.core.constants.ResponseStatus;
import com.doumee.core.exception.BusinessException;
import com.doumee.dao.business.model.Member;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {
    @Resource
    private JwtTokenUtil jwtTokenUtil;
    @Autowired
    private SystemDictDataBiz systemDictDataBiz;


    /**
     * 是否开发者
     */
    @Value("${debug_model}")
    private Boolean isDebug;
    /**
     * 添加拦截器
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        //API接口JwtToken拦截器
        HandlerInterceptor TokenInterceptor = new HandlerInterceptor() {
            @Override
            public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
                // 如果不是映射到方法直接通过
                if (!(handler instanceof HandlerMethod)) {
                    return true;
                }
                HandlerMethod handlerMethod = (HandlerMethod) handler;

                Class<?> beanType = handlerMethod.getBeanType();
                Boolean checkFlag = false;
                if(!( handlerMethod.hasMethodAnnotation(LoginRequired.class) || handlerMethod.hasMethodAnnotation(UserLoginRequired.class))
                ){
                    return true;
                }
                String token = request.getHeader(JwtTokenUtil.HEADER_KEY);
                if(StringUtils.isBlank(token)){
                    throw new BusinessException(ResponseStatus.NO_LOGIN.getCode(),"未登录");
                }
                if (handlerMethod.hasMethodAnnotation(LoginRequired.class)) {
                        checkFlag = checkLogin(request,response,token);
                }
                if(!checkFlag){
                    throw new BusinessException(ResponseStatus.NO_LOGIN.getCode(),"未登录");
                }
                return true;
            }
        };
        registry.addInterceptor(TokenInterceptor).addPathPatterns("/web/**");
    }


    public Boolean checkLogin(HttpServletRequest request, HttpServletResponse response,String token){
        try {
            Member member = jwtTokenUtil.getUserInfoByToken(token);
            if(member == null){
                return false;
            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            throw new BusinessException(ResponseStatus.NO_LOGIN.getCode(),"未登录");
        }
    }

}