package options

import (
	"crypto/md5"
	"fmt"
)

func getSecretFromEnv(salt string) string {
	gen := salt
	// generate default secrets from virtualhost/hostname and DB_DSN value.
	// this will keep the secret the same through restarts
	gen += EnvString("DB_DSN", "memory")
	// pick one of the env that holds hostname
	gen += EnvString("HOSTNAME", "localhost")

	return fmt.Sprintf("%x", md5.Sum([]byte(gen)))
}