package helper

import (
	"crypto/sha256"
	"encoding/hex"
	"fmt"
)

func CalculateSHA256(data string) string {
	hash := sha256.New()
	hash.Write([]byte(data))
	return hex.EncodeToString(hash.Sum(nil))
}

// ChecksumFormFile calculates the SHA256 checksum of a multipart form file.
func CalculateSHA256FromBytes(data []byte) string {
	hash := sha256.Sum256(data)
	return hex.EncodeToString(hash[:])
}

// Sha256 returns the SHA256 hash of the input string as a hex string
func Sha256(s string) string {
	h := sha256.New()
	h.Write([]byte(s))
	return fmt.Sprintf("%x", h.Sum(nil))
}