package captcha

import (
	"math/rand"
	"time"
)

// RandDigit 随机数
func RandDigit(max int) int {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	return r.Intn(max)
}

// RandDigitRange 随机数范围
func RandDigitRange(max int, min int) int {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	return r.Intn(max-min) + min
}

// RandChooseOne 数组随机选一个元素
func RandChooseOne[T any](reasons []T) T {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	return reasons[r.Intn(len(reasons))]
}