eta_mini_ht_api/common/utils/common_utils.go

package utils

import (
	"fmt"
	"strconv"
	"time"
)

func IsValidOldIDCard(idCard string) bool {
	if len(idCard) != 15 {
		return false
	}

	// 分离出生日期
	birthYearStr := idCard[6:8]
	birthMonthStr := idCard[8:10]
	birthDayStr := idCard[10:12]

	// 转换为四位年份
	birthYear, err := strconv.Atoi(birthYearStr)
	if err != nil {
		return false
	}
	if birthYear >= 0 && birthYear <= 99 {
		birthYear = 1900 + birthYear
	} else if birthYear >= 100 && birthYear <= 999 {
		birthYear = 2000 + (birthYear % 100)
	}

	birthMonth, err := strconv.Atoi(birthMonthStr)
	if err != nil {
		return false
	}

	birthDay, err := strconv.Atoi(birthDayStr)
	if err != nil {
		return false
	}

	// 检查出生日期是否有效
	if birthYear < 1900 || birthYear > time.Now().Year() ||
		birthMonth < 1 || birthMonth > 12 ||
		birthDay < 1 || birthDay > 31 {
		return false
	}

	// 检查月份和天数的有效性
	_, err = time.Parse(time.DateOnly, fmt.Sprintf("%d-%d-%d", birthYear, birthMonth, birthDay))
	if err != nil {
		return false
	}

	// 检查性别
	genderCode, _ := strconv.Atoi(idCard[14:15])
	if genderCode%2 == 0 {
		return true // 女性
	} else {
		return true // 男性
	}
}
func IsValidIDCard(idCard string) bool {
	if len(idCard) != 18 {
		return false
	}

	// 加权因子
	weights := []int{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2}
	// 校验码映射表
	checkSumMap := map[int]string{0: "1", 1: "0", 2: "X", 3: "9", 4: "8", 5: "7", 6: "6", 7: "5", 8: "4", 9: "3", 10: "2"}

	// 计算校验码
	sum := 0
	for i, ch := range idCard[:17] {
		digit, _ := strconv.Atoi(string(ch))
		sum += digit * weights[i]
	}
	checkSum := sum % 11
	checkDigit := checkSumMap[checkSum]

	check := idCard[17:18]
	// 检查最后一位是否匹配
	if checkDigit != check {
		return false
	}

	// 验证出生日期
	birthYear, _ := strconv.Atoi(idCard[6:10])
	birthMonth, _ := strconv.Atoi(idCard[10:12])
	birthDay, _ := strconv.Atoi(idCard[12:14])

	if birthYear < 1900 || birthYear > time.Now().Year() ||
		birthMonth < 1 || birthMonth > 12 ||
		birthDay < 1 || birthDay > 31 {
		return false
	}

	// 检查月份和天数的有效性
	_, err := time.Parse(time.DateOnly, fmt.Sprintf("%d-%d-%d", birthYear, birthMonth, birthDay))
	if err != nil {
		return false
	}

	// 检查性别
	genderCode, _ := strconv.Atoi(idCard[16:17])
	if genderCode%2 == 0 {
		return true // 女性
	} else {
		return true // 男性
	}
}