package vault

type InitOption interface {
	applyToVault(v *Vault) error
}

type initOptionFunc func(*Vault) error

func (f initOptionFunc) applyToVault(v *Vault) error {
	return f(v)
}

type Encryption interface {
	Encrypter
	Decrypter
}

type Encrypter interface {
	Encrypt(plainText []byte, passphrase string) (cipherText, salt, nonce []byte, err error)
}

type Decrypter interface {
	Decrypt(cipherText []byte, passphrase string, salt, nonce []byte) (plainText []byte, err error)
}

type KeyDeriver interface {
	DeriveKey(passphrase string, existingSalt []byte) (key, salt []byte)
}

type KeyDeriverFunc func(passphrase string, existingSalt []byte) (key, salt []byte)

func (f KeyDeriverFunc) DeriveKey(passphrase string, existingSalt []byte) (key, salt []byte) {
	return f(passphrase, existingSalt)
}