package core

import "github.com/CityOfZion/neo-go/pkg/util"

// Blockchainer is an interface that abstract the implementation
// of the blockchain.
type Blockchainer interface {
	AddHeaders(...*Header) error
	AddBlock(*Block) error
	BlockHeight() uint32
	HeaderHeight() uint32
	GetBlock(hash util.Uint256) (*Block, error)
	GetHeaderHash(int) util.Uint256
	CurrentHeaderHash() util.Uint256
	CurrentBlockHash() util.Uint256
	HasBlock(util.Uint256) bool
	HasTransaction(util.Uint256) bool
}