package IdCardUtil

import (
	"github.com/bluesky335/IDCheck/IdNumber"
	"strconv"
	"time"
)

var weight = [17]int{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2}
var validValue = [11]byte{'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'}


// Check IdCard number valid.
func IsValidIdCardNo(IdCardNo *[]byte) bool {
	var id = IdNumber.New(string(*IdCardNo))
	return id.IsValid()
}

// Get information from IdCard number. Birthday, gender, province mask.
func GetIdCardNoInfo(idCard string) (isValid bool, birthday string, xbm string) {
	IdCardNo := []byte(idCard)
	xbm = "1"
	if !IsValidIdCardNo(&IdCardNo) {
		isValid = false
		return
	}
	isValid = true
	// Birthday information.
	nYear, _ := strconv.Atoi(string(IdCardNo[6:10]))
	nMonth, _ := strconv.Atoi(string(IdCardNo[10:12]))
	nDay, _ := strconv.Atoi(string(IdCardNo[12:14]))
	birthdayUnix := time.Date(nYear, time.Month(nMonth), nDay, 0, 0, 0, 0, time.Local).Unix()

	//将Unix时间转为时间字符串
	timeTemplate := "2006-01-02 15:04:05"
	birthday = time.Unix(birthdayUnix, 0).Format(timeTemplate)

	// Gender information.
	genderMask, _ := strconv.Atoi(string(IdCardNo[16]))
	if genderMask%2 == 0 {
		xbm = "2"
	} else {
		xbm = "1"
	}
	return
}