package com.vci.client.logon.client;

import java.text.SimpleDateFormat;
import java.util.Date;

import com.vci.client.common.ConfigUtils;
import com.vci.client.common.objects.UserObject;
import com.vci.client.framework.delegate.RightManagementClientDelegate;
import com.vci.client.logon.base.EncryptData;
import com.vci.client.ui.exception.VCIException;


public class SingleLogon {

	public SingleLogon() {
		
	}
	
	/**
	 * 判断用户是否存在
	 * @param userName, 用户名
	 * @return
	 */
	public boolean verifyUserExist(String userName) {
		boolean isExist = false;
		try {
			UserObject userObject = new RightManagementClientDelegate().getUserObjToLock(userName);
			if (userObject != null && userObject.getId() != null && !userObject.getId().equals("")) {
				isExist = true;
			}
		} catch (VCIException e) {
			e.printStackTrace();
		}
		return isExist;
	}
	
	/**
	 * 解密
	 * 
	 * @param input，输入的加密字符串
	 * @return，解密字符串
	 */
	public String getDecryptData(String input) {
		String key = ConfigUtils.getConfigValue("encrypt.key");
		if (key == null || key.equals("")) {
			return "";
		}
		EncryptData data = new EncryptData(key);
		return data.decrypt(input);
	}
	
	/**
	 * 根据间隔时间判断登录是否有效
	 * @param inputTime， 输入的字符串
	 * @param space
	 * @return
	 */
	/**
	 * 根据间隔时间判断登录是否有效
	 * 
	 * @param inputTime,  输入的字符串
	 * @param dateFormate, 输入日期格式, 如yyyy-MM-dd HH:mm:ss
	 * @param space，间隔时间，在间隔时间内为有效，单位：分钟
	 * @return，有效返回true，无效范围false
	 */
	public boolean isLogonValidByTime(String inputTime, String dateFormat, int space) {
		boolean isValid = false;
		try {
			SimpleDateFormat formatter = new SimpleDateFormat (dateFormat);
			java.util.Date itime = formatter.parse(inputTime);
			java.util.Date ctime = new Date();
			long timeSpan = ctime.getTime() - itime.getTime();
			if (timeSpan >= 0 && timeSpan <= space * 60 * 1000) {
				return true;
			} else if (timeSpan < 0 && -timeSpan <= space * 60 * 1000) {
				return true;
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return isValid;
	}
	
	public static void main(String[] args) {
		SingleLogon logon = new SingleLogon();
		boolean is = logon.isLogonValidByTime("2013-03-28 16:02:00", "yyyy-MM-dd HH:mm:ss", 5);
		System.out.println(is);
	}
}