<?php
namespace common\helpers;

/**
 * Class Idcard
 * @package common\helpers
 * @link https://laravel-china.org/articles/4769/php-identity-card-exact-match-verification
 */
class Idcard
{
    public $aWeight = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]; //十七位数字本体码权重

    public $aValidate = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2']; //mod11,对应校验码字符值

    public $birthday;//出生年月

    public $sex;//性别

    public $xingzuo;//星座

    public $shuxiang;//属相
    /**
     * @var Idcard
     */
    private static $_instance;

    private function __construct()
    {
    }

    /**
     * 验证出生日期
     */
    public function isChinaIDCardDate($iY, $iM, $iD)
    {
        $iDate = $iY . '-' . $iM . '-' . $iD;
        $rPattern = '/^(([0-9]{2})|(19[0-9]{2})|(20[0-9]{2}))-((0[1-9]{1})|(1[012]{1}))-((0[1-9]{1})|(1[0-9]{1})|(2[0-9]{1})|3[01]{1})$/';
        if (preg_match($rPattern, $iDate, $arr)) {
            $this->birthday = $iDate;
            return true;
        }
        return false;
    }

    /**
     * 根据身份证号前17位, 算出识别码
     */
    public function getValidateCode($id)
    {
        $id17 = substr($id, 0, 17);
        $sum = 0;
        $len = strlen($id17);
        for ($i = 0; $i < $len; $i++) {
            $sum += $id17[$i] * $this->aWeight[$i];
        }
        $mode = $sum % 11;
        return $this->aValidate[$mode];
    }

    /**
     * 验证身份证号
     */
    public function isChinaIDCard($id)
    {
        if (!$this->get_shenfen($id)) {
            return false;
        }
        $len = strlen($id);
        if ($len == 18) {
            if (!$this->isChinaIDCardDate(substr($id, 6, 4), substr($id, 10, 2), substr($id, 12, 2))) {
                return false;
            }
            $code = $this->getValidateCode($id);
            if (strtoupper($code) == substr($id, 17, 1)) {
                return true;
            }
            return false;
        } else if ($len == 15) {
            if (!$this->isChinaIDCardDate('19' . substr($id, 6, 2), substr($id, 8, 2), substr($id, 10, 2))) {
                return false;
            }
            if (!is_numeric($id)) {
                return false;
            }
            return true;
        }
        return false;
    }

    /**
     * 根据身份证号，自动返回对应的性别
     */
    public function getChinaIDCardSex($cid)
    {
        $sexint = (int)substr($cid, 16, 1);
        return $sexint % 2 === 0 ? '女' : '男';
    }

    /**
     * 根据身份证号，自动返回对应的星座
     */
    public function getChinaIDCardXZ($cid)
    {
        $bir = substr($cid, 10, 4);
        $month = (int)substr($bir, 0, 2);
        $day = (int)substr($bir, 2);
        $strValue = '';
        if (($month == 1 && $day <= 21) || ($month == 2 && $day <= 19)) {
            $strValue = "水瓶座";
        } else if (($month == 2 && $day > 20) || ($month == 3 && $day <= 20)) {
            $strValue = "双鱼座";
        } else if (($month == 3 && $day > 20) || ($month == 4 && $day <= 20)) {
            $strValue = "白羊座";
        } else if (($month == 4 && $day > 20) || ($month == 5 && $day <= 21)) {
            $strValue = "金牛座";
        } else if (($month == 5 && $day > 21) || ($month == 6 && $day <= 21)) {
            $strValue = "双子座";
        } else if (($month == 6 && $day > 21) || ($month == 7 && $day <= 22)) {
            $strValue = "巨蟹座";
        } else if (($month == 7 && $day > 22) || ($month == 8 && $day <= 23)) {
            $strValue = "狮子座";
        } else if (($month == 8 && $day > 23) || ($month == 9 && $day <= 23)) {
            $strValue = "处女座";
        } else if (($month == 9 && $day > 23) || ($month == 10 && $day <= 23)) {
            $strValue = "天秤座";
        } else if (($month == 10 && $day > 23) || ($month == 11 && $day <= 22)) {
            $strValue = "天蝎座";
        } else if (($month == 11 && $day > 22) || ($month == 12 && $day <= 21)) {
            $strValue = "射手座";
        } else if (($month == 12 && $day > 21) || ($month == 1 && $day <= 20)) {
            $strValue = "魔羯座";
        }
        return $strValue;
    }

    /**
     * 根据身份证号，自动返回对应的生肖
     */
    public function getChinaIDCardSX($cid)
    {
        $start = 1901;
        $end = $end = (int)substr($cid, 6, 4);
        $x = ($start - $end) % 12;
        $value = "";
        if ($x == 1 || $x == -11) {
            $value = "鼠";
        }
        if ($x == 0) {
            $value = "牛";
        }
        if ($x == 11 || $x == -1) {
            $value = "虎";
        }
        if ($x == 10 || $x == -2) {
            $value = "兔";
        }
        if ($x == 9 || $x == -3) {
            $value = "龙";
        }
        if ($x == 8 || $x == -4) {
            $value = "蛇";
        }
        if ($x == 7 || $x == -5) {
            $value = "马";
        }
        if ($x == 6 || $x == -6) {
            $value = "羊";
        }
        if ($x == 5 || $x == -7) {
            $value = "猴";
        }
        if ($x == 4 || $x == -8) {
            $value = "鸡";
        }
        if ($x == 3 || $x == -9) {
            $value = "狗";
        }
        if ($x == 2 || $x == -10) {
            $value = "猪";
        }
        return $value;
    }

    /**
     * 根据身份证号，自动返回对应的省、自治区、直辖市名称
     */
    public function get_shenfen($id)
    {
        $index = substr($id, 0, 2);
        $area = array(
            11 => "北京", 12 => "天津", 13 => "河北", 14 => "山西", 15 => "内蒙古", 21 => "辽宁",
            22 => "吉林", 23 => "黑龙江", 31 => "上海", 32 => "江苏", 33 => "浙江", 34 => "安徽",
            35 => "福建", 36 => "江西", 37 => "山东", 41 => "河南", 42 => "湖北", 43 => "湖南",
            44 => "广东", 45 => "广西", 46 => "海南", 50 => "重庆", 51 => "四川", 52 => "贵州",
            53 => "云南", 54 => "西藏", 61 => "陕西", 62 => "甘肃", 63 => "青海", 64 => "宁夏",
            65 => "新疆", 71 => "台湾", 81 => "香港", 82 => "澳门", 91 => "国外"
        );
        return isset($area[$index]) ? $area[$index] : '';
    }

    public static function getInstance()
    {
        if (self::$_instance === null) {
            self::$_instance = new self();
        }
        return self::$_instance;
    }
}