tx

type NewTxFunc = func() (Tx, error)

type Serializer interface {
	// Serialize serializes the transaction
	Serialize() ([]byte, error)
	// SerializedSize returns the size of the serialized transaction
	SerializedSize() uint64
}

type Tx interface {
	Serializer

	// Copy returns a copy of the transaction
	Copy() Tx

	// Crypto returns the transaction crypto
	Crypto() *cryptos.Crypto

	// TxUTXO returns a TxUTXO transaction
	TxUTXO() (TxUTXO, bool)
	// TxStateBased returns a TxStateBased transaction
	TxStateBased() (TxStateBased, bool)
}

type TxStateBased interface{}

type TxUTXO interface {
	// AddOutput adds an output to the transaction
	AddOutput(value uint64, script []byte)
	// AddInput adds an input to the transaction
	AddInput(txID []byte, idx uint32, script []byte, amount uint64) error
	// InputSignature returns the signature for an existing input
	InputSignature(idx int, hashType uint32, privKey key.Private) ([]byte, error)
	// SetInputSequenceNumber sets the sequence number for a given input
	SetInputSequenceNumber(idx int, seq uint32)
	// InputSequenceNumber returns the sequence number of a given input
	InputSequenceNumber(idx int) uint32
	// SetLockTimeUInt32 sets the locktime
	SetLockTimeUInt32(lt uint32)
	// SetLockTime sets the locktime
	SetLockTime(lt time.Time)
	// SetLockDuration sets the locktime as a duration (counting from time.Now().UTC())
	SetLockDuration(d time.Duration)
	// InputSignatureScript returns the signatureScript field of an input
	InputSignatureScript(idx int) []byte
	// SetInputSignatureScript sets the signatureScript field of an input
	SetInputSignatureScript(idx int, ss []byte)
	// SignP2PKInput signs an p2pk input
	SignP2PKInput(idx int, hashType uint32, privKey key.Private) error
	// SignP2PKHInput signs a p2pkh input
	SignP2PKHInput(idx int, hashType uint32, privKey key.Private) error
}