package utils

import (
	"crypto/rand"
	"fmt"
	"strconv"
	"strings"
	"time"

	"github.com/google/uuid"
)

// GenerateNewSHA256Sum returns a fresh SHA256Sum
func GenerateNewSHA256Sum() string {
	timestamp := strconv.FormatInt(time.Now().Unix(), 10)
	prime, _ := rand.Prime(rand.Reader, 512)
	data := []string{fmt.Sprintf("%d", prime)}

	for i := 0; i < 64; i++ {
		prime, _ = rand.Prime(rand.Reader, 64)
		data = append(
			data,
			strings.Join(
				[]string{
					fmt.Sprintf("%d", prime),
					GenerateNewUUID(),
					timestamp},
				"|",
			),
		)
	}

	return GetSHA256SumOfString(strings.Join(data, "|||"))
}

// GenerateNewUUID returns a fresh UUID
func GenerateNewUUID() string {
	return uuid.New().String()
}