state

type AccountSnapshot interface {
	trie.Object
	Version() int
	GetBalance() *big.Int
	IsContract() bool
	IsEmpty() bool
	GetValue(k []byte) ([]byte, error)
	StorageChangedAfter(snapshot AccountSnapshot) bool

	IsContractOwner(owner module.Address) bool
	APIInfo() (*scoreapi.Info, error)
	Contract() ContractSnapshot
	ActiveContract() ContractSnapshot
	NextContract() ContractSnapshot
	IsDisabled() bool
	IsBlocked() bool
	ContractOwner() module.Address

	GetObjGraph(hash []byte, flags bool) (int, []byte, []byte, error)

	CanAcceptTx(pc PayContext) bool
	CheckDeposit(pc PayContext) bool
	GetDepositInfo(dc DepositContext, v module.JSONVersion) (map[string]interface{}, error)
}

type AccountState interface {
	Version() int
	MigrateForRevision(rev module.Revision) error
	GetBalance() *big.Int
	IsContract() bool
	GetValue(k []byte) ([]byte, error)
	SetBalance(v *big.Int)
	SetValue(k, v []byte) ([]byte, error)
	DeleteValue(k []byte) ([]byte, error)
	GetSnapshot() AccountSnapshot
	Reset(snapshot AccountSnapshot) error
	Clear()

	IsContractOwner(owner module.Address) bool
	SetContractOwner(owner module.Address) error
	InitContractAccount(address module.Address) bool
	DeployContract(code []byte, eeType EEType, contentType string, params []byte, txHash []byte) ([]byte, error)
	APIInfo() (*scoreapi.Info, error)
	SetAPIInfo(*scoreapi.Info)
	ActivateNextContract() error
	AcceptContract(txHash []byte, auditTxHash []byte) error
	RejectContract(txHash []byte, auditTxHash []byte) error
	Contract() Contract
	ActiveContract() Contract
	NextContract() Contract
	SetDisable(b bool)
	IsDisabled() bool
	SetBlock(b bool)
	IsBlocked() bool
	ContractOwner() module.Address

	GetObjGraph(id []byte, flags bool) (int, []byte, []byte, error)
	SetObjGraph(id []byte, flags bool, nextHash int, objGraph []byte) error

	AddDeposit(dc DepositContext, value *big.Int) error
	WithdrawDeposit(dc DepositContext, id []byte, value *big.Int) (*big.Int, *big.Int, error)
	PaySteps(pc PayContext, steps *big.Int) (*big.Int, error)
	CanAcceptTx(pc PayContext) bool
	CheckDeposit(pc PayContext) bool
	GetDepositInfo(dc DepositContext, v module.JSONVersion) (map[string]interface{}, error)
}

type Contract interface {
	ContractSnapshot
	SetCode([]byte) error
}

type ContractInfo struct {
	Owner module.Address
}

type ContractSnapshot interface {
	CodeID() []byte
	CodeHash() []byte
	Code() ([]byte, error)
	EEType() EEType
	ContentType() string
	DeployTxHash() []byte
	AuditTxHash() []byte
	Params() []byte
	Status() ContractState
	Equal(s ContractSnapshot) bool
}

type ContractState int

type DepositContext interface {
	StepPrice() *big.Int
	BlockHeight() int64
	DepositTerm() int64
	DepositIssueRate() *big.Int
	TransactionID() []byte
}

type EEType string

type EETypeFilter map[EEType]bool

type EETypes interface {
	Contains(et EEType) bool
	String() string
}

type ExtensionSnapshot interface {
	Bytes() []byte
	Flush() error
	NewState(readonly bool) ExtensionState
}

type ExtensionState interface {
	GetSnapshot() ExtensionSnapshot
	Reset(snapshot ExtensionSnapshot)
	ClearCache()
}

type LockRequest struct {
	ID   string
	Lock int
}

type PayContext interface {
	FeeSharingEnabled() bool
	StepPrice() *big.Int
	FeeLimit() *big.Int
	BlockHeight() int64
}

type Platform interface {
	ToRevision(value int) module.Revision
}

type StepType string

type TransactionInfo struct {
	Group     module.TransactionGroup
	Index     int32
	Hash      []byte
	From      module.Address
	Timestamp int64
	Nonce     *big.Int
}

type ValidatorSnapshot module.ValidatorList

type ValidatorState interface {
	IndexOf(module.Address) int
	Len() int
	Get(i int) (module.Validator, bool)
	Set([]module.Validator) error
	Add(v module.Validator) error
	Remove(v module.Validator) bool
	GetSnapshot() ValidatorSnapshot
	Reset(ValidatorSnapshot)
}

type WorldContext interface {
	WorldState
	Revision() module.Revision
	ToRevision(v int) module.Revision
	StepsFor(t StepType, n int) int64
	StepPrice() *big.Int
	BlockTimeStamp() int64
	GetStepLimit(t string) *big.Int
	BlockHeight() int64
	ConsensusInfo() module.ConsensusInfo
	Treasury() module.Address
	Governance() module.Address
	GetInfo() map[string]interface{}
	WorldStateChanged(ws WorldState) WorldContext
	WorldVirtualState() WorldVirtualState
	GetFuture(lq []LockRequest) WorldContext
	SetTransactionInfo(ti *TransactionInfo)
	TransactionInfo() *TransactionInfo
	TransactionID() []byte
	NextTransactionSalt() *big.Int
	SetContractInfo(si *ContractInfo)
	DepositIssueRate() *big.Int
	FeeLimit() *big.Int
	DepositTerm() int64
	UpdateSystemInfo()

	IsDeployer(addr string) bool
	FeeEnabled() bool
	AuditEnabled() bool
	FeeSharingEnabled() bool
	DeployerWhiteListEnabled() bool
	PackageValidatorEnabled() bool
	MembershipEnabled() bool
	TransactionTimestampThreshold() int64

	EnableSkipTransaction()
	SkipTransactionEnabled() bool
}

type WorldSnapshot interface {
	GetAccountSnapshot(id []byte) AccountSnapshot
	GetValidatorSnapshot() ValidatorSnapshot
	GetExtensionSnapshot() ExtensionSnapshot
	Flush() error
	StateHash() []byte
	ExtensionData() []byte
	Database() db.Database
}

type WorldState interface {
	GetAccountState(id []byte) AccountState
	GetAccountSnapshot(id []byte) AccountSnapshot
	GetSnapshot() WorldSnapshot
	GetValidatorState() ValidatorState
	GetExtensionState() ExtensionState
	Reset(snapshot WorldSnapshot) error
	ClearCache()
	EnableNodeCache()
	NodeCacheEnabled() bool
	Database() db.Database
	EnableAccountNodeCache(id []byte) bool
}

type WorldVirtualState interface {
	WorldState
	GetFuture(reqs []LockRequest) WorldVirtualState
	Ensure()
	Commit()
	Realize()
}