package tools

import (
	"fmt"
	"regexp"
	"time"
)

// @Style 身份证验证
func VerfiyIdCard(idCard string) bool {
	citys := []string{"11", "12", "13", "14", "15", "21", "22",
		"23", "31", "32", "33", "34", "35", "36",
		"37", "41", "42", "43", "44", "45", "46",
		"50", "51", "52", "53", "54", "61", "62",
		"63", "64", "65", "71", "81", "82", "91"}

	// 长度格式验证
	if !regexp.MustCompile("^([\\d]{14,18}[xX\\d]|[\\d]{15})$").MatchString(idCard) {
		return false
	}
	// 省份验证
	if !inArray(idCard[0:2], citys) {
		return false
	}
	// 出生年月验证
	if len(idCard) == 18 {
		birth := fmt.Sprintf("%s-%s-%s", idCard[6:10], idCard[10:12], idCard[12:14])
		birthday, err := time.Parse("2006-01-02", birth)
		if err != nil {
			return false
		}
		if birthday.Unix() > time.Now().Unix() {
			return false
		}
	} else {
		birth := fmt.Sprintf("19%s-%s-%s", idCard[6:8], idCard[8:10], idCard[10:12])
		_, err := time.Parse("2006-01-02", birth)
		if err != nil {
			return false
		}
	}
	return true
}

// @Style 邮箱格式验证
func VerifyEmail(email string) bool {
	pattern := `\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*` //匹配电子邮箱
	reg := regexp.MustCompile(pattern)
	return reg.MatchString(email)
}

func inArray(val string, arr []string) bool {
	for _, s := range arr {
		if s == val {
			return true
		}
	}
	return false
}