forked from TrueCloudLab/neoneo-go
150 lines
4 KiB
Go
150 lines
4 KiB
Go
package state
|
|
|
|
import (
|
|
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
|
|
"github.com/nspcc-dev/neo-go/pkg/io"
|
|
"github.com/nspcc-dev/neo-go/pkg/util"
|
|
)
|
|
|
|
// UnspentBalance contains input/output transactons that sum up into the
|
|
// account balance for the given asset.
|
|
type UnspentBalance struct {
|
|
Tx util.Uint256 `json:"txid"`
|
|
Index uint16 `json:"n"`
|
|
Value util.Fixed8 `json:"value"`
|
|
}
|
|
|
|
// UnclaimedBalance represents transaction output which was spent and
|
|
// can be claimed.
|
|
type UnclaimedBalance struct {
|
|
Tx util.Uint256
|
|
Index uint16
|
|
Start uint32
|
|
End uint32
|
|
Value util.Fixed8
|
|
}
|
|
|
|
// UnspentBalances is a slice of UnspentBalance (mostly needed to sort them).
|
|
type UnspentBalances []UnspentBalance
|
|
|
|
// Account represents the state of a NEO account.
|
|
type Account struct {
|
|
Version uint8
|
|
ScriptHash util.Uint160
|
|
IsFrozen bool
|
|
Votes []*keys.PublicKey
|
|
Balances map[util.Uint256][]UnspentBalance
|
|
Unclaimed UnclaimedBalances
|
|
}
|
|
|
|
// NewAccount returns a new Account object.
|
|
func NewAccount(scriptHash util.Uint160) *Account {
|
|
return &Account{
|
|
Version: 0,
|
|
ScriptHash: scriptHash,
|
|
IsFrozen: false,
|
|
Votes: []*keys.PublicKey{},
|
|
Balances: make(map[util.Uint256][]UnspentBalance),
|
|
Unclaimed: UnclaimedBalances{Raw: []byte{}},
|
|
}
|
|
}
|
|
|
|
// DecodeBinary decodes Account from the given BinReader.
|
|
func (s *Account) DecodeBinary(br *io.BinReader) {
|
|
s.Version = uint8(br.ReadB())
|
|
br.ReadBytes(s.ScriptHash[:])
|
|
s.IsFrozen = br.ReadBool()
|
|
br.ReadArray(&s.Votes)
|
|
|
|
s.Balances = make(map[util.Uint256][]UnspentBalance)
|
|
lenBalances := br.ReadVarUint()
|
|
for i := 0; i < int(lenBalances); i++ {
|
|
key := util.Uint256{}
|
|
br.ReadBytes(key[:])
|
|
len := int(br.ReadVarUint())
|
|
ubs := make([]UnspentBalance, len)
|
|
for j := 0; j < len; j++ {
|
|
ubs[j].DecodeBinary(br)
|
|
}
|
|
s.Balances[key] = ubs
|
|
}
|
|
|
|
lenBalances = br.ReadVarUint()
|
|
s.Unclaimed.Raw = make([]byte, lenBalances*UnclaimedBalanceSize)
|
|
br.ReadBytes(s.Unclaimed.Raw)
|
|
}
|
|
|
|
// EncodeBinary encodes Account to the given BinWriter.
|
|
func (s *Account) EncodeBinary(bw *io.BinWriter) {
|
|
bw.WriteB(byte(s.Version))
|
|
bw.WriteBytes(s.ScriptHash[:])
|
|
bw.WriteBool(s.IsFrozen)
|
|
bw.WriteArray(s.Votes)
|
|
|
|
bw.WriteVarUint(uint64(len(s.Balances)))
|
|
for k, v := range s.Balances {
|
|
bw.WriteBytes(k[:])
|
|
bw.WriteVarUint(uint64(len(v)))
|
|
for i := range v {
|
|
v[i].EncodeBinary(bw)
|
|
}
|
|
}
|
|
|
|
bw.WriteVarUint(uint64(s.Unclaimed.Size()))
|
|
bw.WriteBytes(s.Unclaimed.Raw)
|
|
}
|
|
|
|
// DecodeBinary implements io.Serializable interface.
|
|
func (u *UnspentBalance) DecodeBinary(r *io.BinReader) {
|
|
u.Tx.DecodeBinary(r)
|
|
u.Index = r.ReadU16LE()
|
|
u.Value.DecodeBinary(r)
|
|
}
|
|
|
|
// EncodeBinary implements io.Serializable interface.
|
|
func (u *UnspentBalance) EncodeBinary(w *io.BinWriter) {
|
|
u.Tx.EncodeBinary(w)
|
|
w.WriteU16LE(u.Index)
|
|
u.Value.EncodeBinary(w)
|
|
}
|
|
|
|
// DecodeBinary implements io.Serializable interface.
|
|
func (u *UnclaimedBalance) DecodeBinary(r *io.BinReader) {
|
|
u.Tx.DecodeBinary(r)
|
|
u.Index = r.ReadU16LE()
|
|
u.Start = r.ReadU32LE()
|
|
u.End = r.ReadU32LE()
|
|
u.Value.DecodeBinary(r)
|
|
}
|
|
|
|
// EncodeBinary implements io.Serializable interface.
|
|
func (u *UnclaimedBalance) EncodeBinary(w *io.BinWriter) {
|
|
u.Tx.EncodeBinary(w)
|
|
w.WriteU16LE(u.Index)
|
|
w.WriteU32LE(u.Start)
|
|
w.WriteU32LE(u.End)
|
|
u.Value.EncodeBinary(w)
|
|
}
|
|
|
|
// GetBalanceValues sums all unspent outputs and returns a map of asset IDs to
|
|
// overall balances.
|
|
func (s *Account) GetBalanceValues() map[util.Uint256]util.Fixed8 {
|
|
res := make(map[util.Uint256]util.Fixed8)
|
|
for k, v := range s.Balances {
|
|
balance := util.Fixed8(0)
|
|
for _, b := range v {
|
|
balance += b.Value
|
|
}
|
|
res[k] = balance
|
|
}
|
|
return res
|
|
}
|
|
|
|
// Len returns the length of UnspentBalances (used to sort things).
|
|
func (us UnspentBalances) Len() int { return len(us) }
|
|
|
|
// Less compares two elements of UnspentBalances (used to sort things).
|
|
func (us UnspentBalances) Less(i, j int) bool { return us[i].Value < us[j].Value }
|
|
|
|
// Swap swaps two elements of UnspentBalances (used to sort things).
|
|
func (us UnspentBalances) Swap(i, j int) { us[i], us[j] = us[j], us[i] }
|