sdk

type EventDelivery interface {

	// Events returns peer chaincode events stream
	// blockRange:
	// * [] -> api.SeekNewest()},
	// *  [0] - from oldest block to maxBlock
	// * [{blockFrom}] - from specified block to maxBlock
	// * [-{blockFrom}] - specified blocks back from channel height
	// * [0,0] from oldest block to current channel height
	// * [-{blockFrom},0] - specified blocks back from channel height to current channel height
	// * [-{blockFrom}, -{blockTo}} -{blockFrom} blocks back from channel height to -{blockTo} block from channel height
	// * [-{blockFrom}, {blockTo}} -{blockFrom} blocks back from channel height to block {blockTo}
	Events(
		ctx context.Context,
		channelName string,
		ccName string,
		identity msp.SigningIdentity,
		blockRange ...int64,
	) (events chan interface {
		Event() *peer.ChaincodeEvent
		Block() uint64
		TxTimestamp() *timestamp.Timestamp
	}, closer func() error, err error)
}

type Invoker interface {
	CurrentIdentity() msp.SigningIdentity

	Query(
		ctx context.Context,
		chanName string,
		ccName string,
		args [][]byte,
		identity msp.SigningIdentity,
		transient map[string][]byte,
	) (*peer.Response, error)

	Invoke(
		ctx context.Context,
		chanName string,
		ccName string,
		args [][]byte,
		identity msp.SigningIdentity,
		transient map[string][]byte,
		txWaiterType string,
	) (res *peer.Response, chaincodeTx string, err error)
}

type SDK interface {
	Invoker
	EventDelivery
}