blockchain

type IChain interface {
	LastHeight() uint64
	LastHeader() (types.IHeader, error)
	LastConfirmed() uint64
	SetConfirmed(uint64)
	GetBlockHeight(uint64) (types.IBlock, error)
	GetBlockHash(arry.Hash) (types.IBlock, error)
	GetHeaderHeight(uint64) (types.IHeader, error)
	GetHeaderHash(arry.Hash) (types.IHeader, error)
	GetMessage(arry.Hash) (types.IMessage, error)
	GetMessageIndex(hash arry.Hash) (types.IMessageIndex, error)
	CycleLastHash(uint64) (arry.Hash, error)

	GetRlpBlockHeight(uint64) (types.IRlpBlock, error)
	GetRlpBlockHash(arry.Hash) (types.IRlpBlock, error)

	NextHeader(uint64) (types.IHeader, error)
	NextBlock([]types.IMessage, uint64) (types.IBlock, error)
	Insert(types.IBlock) error
	Roll() error
	Vote(arry.Address) uint64
}