package org.apereo.cas.web.landtool.single.flow;

import java.time.format.DateTimeFormatter;
import java.util.Collection;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;
import org.apereo.cas.authentication.UsernamePasswordCredential;
import org.apereo.cas.ticket.Ticket;
import org.apereo.cas.ticket.TicketGrantingTicket;
import org.apereo.cas.web.landtool.single.service.SingleLoginService;
import org.apereo.cas.web.support.WebUtils;
import org.apereo.inspektr.common.web.ClientInfoHolder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.binding.message.MessageBuilder;
import org.springframework.binding.message.MessageContext;
import org.springframework.webflow.action.AbstractAction;
import org.springframework.webflow.execution.Event;
import org.springframework.webflow.execution.RequestContext;

/**
 * @author Tanbin
 * @date  2018-12-21
 */
public class UserAlreadyLoginedCheckAction extends AbstractAction {
	private static final Logger LOGGER = LoggerFactory.getLogger(UserAlreadyLoginedCheckAction.class);
	
    @Autowired
    private SingleLoginService singleLoginService;
    
    public UserAlreadyLoginedCheckAction() {
    	
    }
    
    /**
     * 获取登录信息 进行判断登录状态
     */
	@Override
    protected Event doExecute(final RequestContext requestContext) throws Exception {
		if(singleLoginService.singleLoginProperties.isShowWarnMessage()) {
	        final HttpServletRequest request = WebUtils.getHttpServletRequest(requestContext);
			MessageContext messageContext = requestContext.getMessageContext();
	        UsernamePasswordCredential upc = (UsernamePasswordCredential) WebUtils.getCredential(requestContext);;
	        final String username = upc.getUsername();	
	        final String clientIp = ClientInfoHolder.getClientInfo().getClientIpAddress();
	        final String msgCodeWarn = "authenticationFailure.SingleUserWarn";
	        ///
			// String singleLoginCheckbox = (String) requestContext.getRequestScope().get("singleLoginCheckbox");
	        String showSingleLoginConfim = request.getParameter("showSingleLoginConfim");
	        String singleLoginCheckbox = request.getParameter("singleLoginCheckbox");
	        if(StringUtils.isBlank(singleLoginCheckbox)) {
	        	singleLoginCheckbox = (String) requestContext.getFlowScope().get("singleLoginCheckbox");
	        }
	        
	        if(StringUtils.isBlank(singleLoginCheckbox) && StringUtils.isBlank(showSingleLoginConfim)) {
	            Collection<Ticket> tickets = singleLoginService.getKictOutTickets(username, clientIp);
	            if(tickets != null && tickets.size() > 0) {
	            	LOGGER.debug("#####显示登录安全警告 [{}]", tickets.size());
	                TicketGrantingTicket oldTgt = (TicketGrantingTicket)tickets.iterator().next();
	                oldTgt = oldTgt.getRoot();
	                String oldClientIp = (String) oldTgt.getAuthentication().getAttributes().get("clientIp");
	                String oldLoginTime = oldTgt.getAuthentication().getAuthenticationDate().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME);

	                String loginMsg = String.format("IP:%s, 时间:%s", oldClientIp, oldLoginTime);
	                String loginMsg2 = "";
//	                if(singleLoginService.singleLoginProperties.isKickOut()){
//	                	loginMsg2 = "，本登录已将其踢出";
//	                }
	            	requestContext.getRequestScope().put("showSingleLoginConfim","true"); 
	            	
	            	messageContext.addMessage(new MessageBuilder().error().code(msgCodeWarn).args(loginMsg, loginMsg2).build());
	                return new Event(this, "error");
	            }
	        } else {
	        	LOGGER.debug("#####singleLoginCheckbox 是否踢出:[{}]", singleLoginCheckbox);
	        	if(StringUtils.isBlank(singleLoginCheckbox)) {
	        		requestContext.getFlowScope().put("singleLoginCheckbox", "false"); 
	        	} else {
	        		requestContext.getFlowScope().put("singleLoginCheckbox", singleLoginCheckbox); 
	        	}
	        }
		}

        return new Event(this, "success");

    }

}