accounts

type EthConfig struct {
	Passphrase string `required:"false" default:"" yaml:"pass_phrase"`
	Keystore   string `required:"false" default:"" yaml:"key_store"`
}

type Identity interface {
	// GetPrivateKey return *ecdsa.PrivateKey, it include PublicKey and ethereum Address shortly
	GetPrivateKey() (*ecdsa.PrivateKey, error)

	// New creates new account in keystore.
	// Do not open created account.
	New(passphrase string) error

	// Open opens loaded account
	Open(passphrase string) error

	// Import imports existing account from given json and pass-phrase
	Import(json []byte, passphrase string) error

	// ImportECDSA imports existing account from given private key and pass-phrase
	ImportECDSA(key *ecdsa.PrivateKey, passphrase string) error
}

type KeyOpener interface {
	// GetPassPhraser return PassPhraser interface
	// that provides pass phrase for loaded keys
	GetPassPhraser() PassPhraser
	// OpenKeystore opens key storage.
	// bool param is true if keystore was not existed and was created
	OpenKeystore() (bool, error)
	// GetKey returns private key from opened storage
	GetKey() (*ecdsa.PrivateKey, error)
}

type KeyStorager interface {
	// KeyStore returns path to key store
	KeyStore() string
	// PassPhrase returns passphrase for keystore
	PassPhrase() string
}

type PassPhraser interface {
	GetPassPhrase() (string, error)
}

type Printer interface {
	Printf(format string, i ...interface{})
}