package com.winsun.utils;

import lombok.extern.slf4j.Slf4j;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.Hashtable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


/**
 * 身份证校验
 * @Author: chancy
 * @Date: 2020/3/2 13:03
 */
@Slf4j
public class IDCardUtil {
    /**
     * 功能：身份证的有效验证
     *
     * @param iDStr 身份证号
     * @return true 有效：false 无效
     */
    public static boolean IDCardValidate(String iDStr) {
        Pattern p = Pattern.compile("(^\\d{15}$)|(^\\d{18}$)|(^\\d{17}(\\d|X)$)");
        String[] ValCodeArr = {"1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"};
        String[] Wi = {"7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7", "9", "10", "5", "8", "4", "2"};
        String Ai = "";
        Matcher idc = p.matcher(iDStr);
        if (idc.matches()){
            if (iDStr.length() == 18)
            {
                Ai = iDStr.substring(0, 17);
            }
            // ================ 出生年月是否有效 ================
            String strYear = Ai.substring(6, 10);// 年份
            String strMonth = Ai.substring(10, 12);// 月份
            String strDay = Ai.substring(12, 14);// 日
            if (isDate(strYear + "-" + strMonth + "-" + strDay) == false)
            {
//          errorInfo = "身份证生日无效。";
                return false;
            }
            //15位身份证日期验证
            if(false){
            }
            GregorianCalendar gc = new GregorianCalendar();
            SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");
            try
            {
                if ((gc.get(Calendar.YEAR) - Integer.parseInt(strYear)) > 150 || (gc.getTime().getTime() - s.parse(strYear + "-" + strMonth + "-" + strDay).getTime()) < 0)
                {
                    //errorInfo = "身份证生日不在有效范围。";
                    return false;
                }
            } catch (NumberFormatException e)
            {
                log.error("身份证验证异常",e.getMessage());
            } catch (java.text.ParseException e)
            {
                log.error("身份证验证异常",e.getMessage());
            }
            if (Integer.parseInt(strMonth) > 12 || Integer.parseInt(strMonth) == 0)
            {
                //errorInfo = "身份证月份无效";
                return false;
            }
            if (Integer.parseInt(strDay) > 31 || Integer.parseInt(strDay) == 0)
            {
                //errorInfo = "身份证日期无效";
                return false;
            }
            Hashtable h = GetAreaCode();
            if (h.get(Ai.substring(0, 2)) == null)
            {
                //errorInfo = "身份证地区编码错误。";
                return false;
            }
            int TotalmulAiWi = 0;
            for (int i = 0; i < 17; i++)
            {
                TotalmulAiWi = TotalmulAiWi + Integer.parseInt(String.valueOf(Ai.charAt(i))) * Integer.parseInt(Wi[i]);
            }
            int modValue = TotalmulAiWi % 11;
            String strVerifyCode = ValCodeArr[modValue];
            Ai = Ai + strVerifyCode;

            if (iDStr.length() == 18)
            {
                if (Ai.equals(iDStr) == false)
                {
                    //errorInfo = "身份证无效，不是合法的身份证号码";
                    return false;
                }
            } else
            {
                return true;
            }
        }else {
            return false;
        }
      return true;
    }


    /**
     * 功能：判断字符串是否为日期格式
     *
     * @param strDate
     * @return
     */
    public static boolean isDate(String strDate)
    {
        Pattern pattern = Pattern.compile("^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$");
        Matcher m = pattern.matcher(strDate);
        return m.matches();
    }




    /**
     * 功能：设置地区编码
     *
     * @return Hashtable 对象
     */
    @SuppressWarnings("unchecked")
    private static Hashtable GetAreaCode()
    {
        Hashtable hashtable = new Hashtable();
        hashtable.put("11", "北京");
        hashtable.put("12", "天津");
        hashtable.put("13", "河北");
        hashtable.put("14", "山西");
        hashtable.put("15", "内蒙古");
        hashtable.put("21", "辽宁");
        hashtable.put("22", "吉林");
        hashtable.put("23", "黑龙江");
        hashtable.put("31", "上海");
        hashtable.put("32", "江苏");
        hashtable.put("33", "浙江");
        hashtable.put("34", "安徽");
        hashtable.put("35", "福建");
        hashtable.put("36", "江西");
        hashtable.put("37", "山东");
        hashtable.put("41", "河南");
        hashtable.put("42", "湖北");
        hashtable.put("43", "湖南");
        hashtable.put("44", "广东");
        hashtable.put("45", "广西");
        hashtable.put("46", "海南");
        hashtable.put("50", "重庆");
        hashtable.put("51", "四川");
        hashtable.put("52", "贵州");
        hashtable.put("53", "云南");
        hashtable.put("54", "西藏");
        hashtable.put("61", "陕西");
        hashtable.put("62", "甘肃");
        hashtable.put("63", "青海");
        hashtable.put("64", "宁夏");
        hashtable.put("65", "新疆");
        hashtable.put("71", "台湾");
        hashtable.put("81", "香港");
        hashtable.put("82", "澳门");
        hashtable.put("91", "国外");
        return hashtable;
    }

    /**
     * 功能：身份证号码最后一位小写转为大写
     *
     * @param iDStr 身份证号
     * @return
     */
    public static String IdCardConversion(String iDStr){
        String idFront = iDStr.substring(0, iDStr.length() -1);
        String idLast = iDStr.substring(iDStr.length()-1, iDStr.length());
        if("x".equals(idLast)){
            idLast = "X";
            iDStr = idFront + idLast;
        }
        return iDStr;
    }
}
