package com.xiaopeng.common.security.interceptor;

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

import com.xiaopeng.api.vo.account.LoginOperationUser;
import com.xiaopeng.api.vo.account.LoginUser;
import com.xiaopeng.common.core.utils.JwtUtils;
import com.xiaopeng.common.core.utils.SpringUtils;
import com.xiaopeng.common.security.service.TokenService;
import io.jsonwebtoken.Claims;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.AsyncHandlerInterceptor;
import com.xiaopeng.common.core.constant.SecurityConstants;
import com.xiaopeng.common.core.context.SecurityContextHolder;
import com.xiaopeng.common.core.utils.ServletUtils;
import com.xiaopeng.common.core.utils.StringUtils;
import com.xiaopeng.common.security.auth.AuthUtil;
import com.xiaopeng.common.security.utils.SecurityUtils;

/**
 * 自定义请求头拦截器，将Header数据封装到线程变量中方便获取
 * 注意：此拦截器会同时验证当前用户有效期自动刷新有效期
 *
 * @author ruoyi
 */
public class HeaderInterceptor implements AsyncHandlerInterceptor
{

    private final TokenService tokenService = SpringUtils.getBean(TokenService.class);

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception
    {
        if (!(handler instanceof HandlerMethod))
        {
            return true;
        }

        SecurityContextHolder.setUserId(ServletUtils.getHeader(request, SecurityConstants.DETAILS_USER_ID));
        SecurityContextHolder.setUserName(ServletUtils.getHeader(request, SecurityConstants.DETAILS_USERNAME));
        SecurityContextHolder.setUserKey(ServletUtils.getHeader(request, SecurityConstants.USER_KEY));
        SecurityContextHolder.setOperationUserKey(ServletUtils.getHeader(request, SecurityConstants.OPERATION_USER_KEY));

        String token = SecurityUtils.getToken();
        if (StringUtils.isNotEmpty(token))
        {
            String userType = JwtUtils.getUserType(token, tokenService.getSecret());
            if ("system".equals(userType)) {
                LoginUser loginUser = AuthUtil.getLoginUser(token);
                if (StringUtils.isNotNull(loginUser))
                {
                    AuthUtil.verifyLoginUserExpire(loginUser);
                    SecurityContextHolder.set(SecurityConstants.LOGIN_USER, loginUser);
                }
            }
            if ("operation".equals(userType)) {
                LoginOperationUser operationLoginUser = AuthUtil.getOperationLoginUser(token);
                if (StringUtils.isNotNull(operationLoginUser))
                {
                    AuthUtil.verifyOperationLoginUserExpire(operationLoginUser);
                    SecurityContextHolder.set(SecurityConstants.LOGIN_OPERATION_USER, operationLoginUser);
                }
            }
        }
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception
    {
        SecurityContextHolder.remove();
    }
}