common

type DataEntryPrefix byte

type EventStore interface {
	SaveEventNotifyByTx(txHash common.Uint256, notifies []*event.NotifyEventInfo) error
	SaveEventNotifyByBlock(height uint32, txHashs []common.Uint256) error
	GetEventNotifyByTx(txHash common.Uint256) ([]*event.NotifyEventInfo, error)
	CommitTo() error
}

type ItemState byte

type MemoryCacheStore interface {
	Put(prefix byte, key []byte, value states.StateValue, state ItemState, trie bool)
	Get(prefix byte, key []byte) *StateItem
	Delete(prefix byte, key []byte)
	GetChangeSet() map[string]*StateItem
	Change(prefix byte, key []byte, trie bool)
}

type PersistStore interface {
	Put(key []byte, value []byte) error
	Get(key []byte) ([]byte, error)
	Has(key []byte) (bool, error)
	Delete(key []byte) error
	NewBatch()
	BatchPut(key []byte, value []byte)
	BatchDelete(key []byte)
	BatchCommit() error
	Close() error
	NewIterator(prefix []byte) StoreIterator
}

type StateItem struct {
	Key   string
	Value states.StateValue
	State ItemState
	Trie  bool
}

type StateStore interface {
	TryAdd(prefix DataEntryPrefix, key []byte, value states.StateValue, trie bool)
	TryGetOrAdd(prefix DataEntryPrefix, key []byte, value states.StateValue, trie bool) error
	TryGet(prefix DataEntryPrefix, key []byte) (*StateItem, error)
	TryGetAndChange(prefix DataEntryPrefix, key []byte, trie bool) (states.StateValue, error)
	TryDelete(prefix DataEntryPrefix, key []byte)
	Find(prefix DataEntryPrefix, key []byte) ([]*StateItem, error)
}

type StoreIterator interface {
	Next() bool
	Prev() bool
	First() bool
	Last() bool
	Seek(key []byte) bool
	Key() []byte
	Value() []byte
	Release()
}