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package random
import (
"math/rand"
"time"
"github.com/google/uuid"
)
var Rand *rand.Rand
const letterBytes = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
func String(n int) string {
b := make([]byte, n)
for i := range b {
b[i] = letterBytes[Rand.Intn(len(letterBytes))]
}
return string(b)
}
func Token() string {
return "alist-" + uuid.NewString() + String(64)
}
func RangeInt64(left, right int64) int64 {
return rand.Int63n(left+right) - left
}
func init() {
s := rand.NewSource(time.Now().UnixNano())
Rand = rand.New(s)
}
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