local

type Application interface {
	// Info/Query Connection
	Info(*t.RequestInfo) *t.ResponseInfo    // Return application info
	Query(*t.RequestQuery) *t.ResponseQuery // Query for state

	// Mempool Connection
	CheckTx(*RequestNativeCheckTx) *ResponseNativeCheckTx // Validate a tx for the mempool

	// Consensus Connection
	InitLedger(*RequestNativeInitLedger) *ResponseNativeInitLedger // Initialize distributed ledger w/ validators/other info from the consensus engine
	BeginBlock(*RequestNativeBeginBlock) *t.ResponseBeginBlock     // Signals the beginning of a block
	DeliverTx(*RequestNativeDeliverTx) *t.ResponseDeliverTx        // Deliver a tx for full processing
	EndBlock(*t.RequestEndBlock) *ResponseNativeEndBlock           // Signals the end of a block, returns changes to the validator set
	Commit() *t.ResponseCommit                                     // Commit the state and return the application Merkle root hash

	// State Sync Connection
	ListSnapshots(*t.RequestListSnapshots) *t.ResponseListSnapshots                // List available snapshots
	OfferSnapshot(*t.RequestOfferSnapshot) *t.ResponseOfferSnapshot                // Offer a snapshot to the application
	LoadSnapshotChunk(*t.RequestLoadSnapshotChunk) *t.ResponseLoadSnapshotChunk    // Load a snapshot chunk
	ApplySnapshotChunk(*t.RequestApplySnapshotChunk) *t.ResponseApplySnapshotChunk // Apply a shapshot chunk
}

type BaseApplication struct {
}

type RequestNativeBeginBlock struct {
	Header *model.BlockHeaderExt
	Extra  model.ExtraPtr
}

type RequestNativeCheckTx struct {
	Tx   *model.TransactionExt
	Type types.CheckTxType
}

type RequestNativeDeliverTx struct {
	Tx *model.TransactionExt
}

type RequestNativeInitLedger struct {
	Time          time.Time
	LedgerId      model.LedgerID
	AppStateBytes []byte
	InitialHeight uint64
	Extra         model.ExtraPtr
}

type ResponseNativeCheckTx struct {
	Code      uint32
	Data      []byte
	Log       string
	Info      string
	GasWanted int64
	GasUsed   int64
	Events    []types.Event
	Codespace string
	Sender    model.Address
	Priority  int64
	// mempool_error is set by the SMRE.
	// ACEI applications creating a ResponseCheckTX should not set mempool_error.
	MempoolError error
}

type ResponseNativeEndBlock struct {
	Events []types.Event
	Extra  model.ExtraPtr
}

type ResponseNativeInitLedger struct {
	AppHash []byte
	Extra   model.ExtraPtr
}