package com.yihu.ehr.analysis.etl.util;

import org.apache.commons.lang3.StringUtils;

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

/**
 * 身份证号工具类
 *
 * Created by lyr-pc on 2017/2/17.
 */
public class IdcardUtil {

    /**
     * 根据身份证的号码算出当前身份证持有者的年龄
     *
     * @param
     * @throws Exception
     */
    public static int getAgeFromIdcard(String idcard) {
        try {
            int age = -1;

            if (StringUtils.isEmpty(idcard)) {
                return age;
            }

            String birth = "";

            if (idcard.length() == 18) {
                birth = idcard.substring(6, 14);
            } else if (idcard.length() == 15) {
                birth = "19" + idcard.substring(6, 12);
            }

            int year = Integer.valueOf(birth.substring(0, 4));
            int month = Integer.valueOf(birth.substring(4, 6));
            int day = Integer.valueOf(birth.substring(6));
            Calendar cal = Calendar.getInstance();
            age = cal.get(Calendar.YEAR) - year;
            //周岁计算
            if (cal.get(Calendar.MONTH) < (month - 1) || (cal.get(Calendar.MONTH) == (month - 1) && cal.get(Calendar.DATE) < day)) {
                age--;
            }

            return age;
        } catch (Exception e) {
            return -1;
        }
    }


    /**
     * 根据身份证的号码算出当前身份证持有者的性别
     * 1 男 2 女 3未知
     *
     * @return
     * @throws Exception
     */
    public static int getSexForIdcard(String CardCode)
            throws Exception {
        int sex = 3;
        if (CardCode.length() == 18) {
            if (Integer.parseInt(CardCode.substring(16).substring(0, 1)) % 2 == 0) {// 判断性别
                sex = 2;
            } else {
                sex = 1;
            }
        } else if (CardCode.length() == 15) {
            String usex = CardCode.substring(14, 15);// 用户的性别
            if (Integer.parseInt(usex) % 2 == 0) {
                sex = 2;
            } else {
                sex = 1;
            }
        }
        return sex;
    }

    /**
     * 身份证提取出身日期
     *
     * @param card
     * @return
     * @throws Exception
     */
    public static Date getBirthdayForIdcard(String card)
            throws Exception {
        Date b = null;
        if (card.length() == 18) {
            String year = card.substring(6).substring(0, 4);// 得到年份
            String yue = card.substring(10).substring(0, 2);// 得到月份
            String ri = card.substring(12).substring(0, 2);// 得到日
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            b = format.parse(year + "-" + yue + "-" + ri);
        } else if (card.length() == 15) {
            String uyear = "19" + card.substring(6, 8);// 年份
            String uyue = card.substring(8, 10);// 月份
            String uri = card.substring(10, 12);// 得到日
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            b = format.parse(uyear + "-" + uyue + "-" + uri);
        }
        return b;
    }

}