package wire

import (
	"next.orly.dev/pkg/crypto/ec/chainhash"
)

// OutPoint defines a bitcoin data type that is used to track previous
// transaction outputs.
type OutPoint struct {
	Hash  chainhash.Hash
	Index uint32
}

// TxWitness defines the witness for a TxIn. A witness is to be interpreted as
// a slice of byte slices, or a stack with one or many elements.
type TxWitness [][]byte

// TxIn defines a bitcoin transaction input.
type TxIn struct {
	PreviousOutPoint OutPoint
	SignatureScript  []byte
	Witness          TxWitness
	Sequence         uint32
}

// TxOut defines a bitcoin transaction output.
type TxOut struct {
	Value    int64
	PkScript []byte
}

// MsgTx implements the Message interface and represents a bitcoin tx message.
// It is used to deliver transaction information in response to a getdata
// message (MsgGetData) for a given transaction.
//
// Use the AddTxIn and AddTxOut functions to build up the list of transaction
// inputs and outputs.
type MsgTx struct {
	Version  int32
	TxIn     []*TxIn
	TxOut    []*TxOut
	LockTime uint32
}