package msg

import (
	"fmt"
	"math/rand"
	"time"
)

type SmsOperation interface {
	SendVerificationCode(phoneNumber string) (string, error)
	CheckVerificationCode(phoneNumber, verificationCode string) error
	CheckVerificationCodeNew(phoneNumber string) (string, error)
}

func NewSms() SmsOperation {
	return getALiYunEntity()
}

// Create 6-bit random numbers
func CreateRandCode() string {
	return fmt.Sprintf("%06v", rand.New(rand.NewSource(time.Now().UnixNano())).Int31n(1000000))
}

// Create a 14 bit random number as the sender
func CreateRandCodeTest() string {
	return fmt.Sprintf("%014v", rand.New(rand.NewSource(time.Now().UnixNano())).Int31n(1000000))
}