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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| package observer | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "slices" | ||
|
|
||
| "cosmossdk.io/errors" | ||
| "github.com/rs/zerolog" | ||
| "github.com/tonkeeper/tongo/ton" | ||
|
|
||
| "github.com/zeta-chain/node/pkg/ticker" | ||
| "github.com/zeta-chain/node/zetaclient/chains/ton/liteapi" | ||
| zctx "github.com/zeta-chain/node/zetaclient/context" | ||
| ) | ||
|
|
||
| const ( | ||
| // MaxTransactionsPerTick is the maximum number of transactions to process on a ticker | ||
| MaxTransactionsPerTick = 100 | ||
| ) | ||
|
|
||
| func (ob *Observer) watchInbound(ctx context.Context) error { | ||
| app, err := zctx.FromContext(ctx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| var ( | ||
| chainID = ob.Chain().ChainId | ||
| initialInterval = ticker.SecondsFromUint64(ob.ChainParams().InboundTicker) | ||
| sampledLogger = ob.Logger().Inbound.Sample(&zerolog.BasicSampler{N: 10}) | ||
| ) | ||
|
|
||
| ob.Logger().Inbound.Info().Msgf("WatchInbound started for chain %d", chainID) | ||
|
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||
| task := func(ctx context.Context, t *ticker.Ticker) error { | ||
| if !app.IsInboundObservationEnabled() { | ||
| sampledLogger.Info().Msgf("WatchInbound: inbound observation is disabled for chain %d", chainID) | ||
| return nil | ||
| } | ||
|
|
||
| if err := ob.observeInbound(ctx, app); err != nil { | ||
| ob.Logger().Inbound.Err(err).Msg("WatchInbound: observeInbound error") | ||
| } | ||
|
|
||
| newInterval := ticker.SecondsFromUint64(ob.ChainParams().InboundTicker) | ||
| t.SetInterval(newInterval) | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| return ticker.Run( | ||
| ctx, | ||
| initialInterval, | ||
| task, | ||
| ticker.WithStopChan(ob.StopChannel()), | ||
| ticker.WithLogger(ob.Logger().Inbound, "WatchInbound"), | ||
| ) | ||
| } | ||
|
|
||
| // Flow: | ||
| // - [x] Ensure last scanned transaction is set | ||
| // - [x] Get all transaction between [lastScannedTx; now] | ||
| // - [ ] Filter only valid and inbound transactions | ||
| // - [ ] For each transaction (ordered by *ASC*) | ||
| // - [ ] Construct crosschain cosmos message | ||
| // - [ ] Vote | ||
| // - [ ] Save last scanned tx | ||
| func (ob *Observer) observeInbound(ctx context.Context, _ *zctx.AppContext) error { | ||
| if err := ob.ensureLastScannedTX(ctx); err != nil { | ||
| return errors.Wrap(err, "unable to ensure last scanned tx") | ||
| } | ||
|
|
||
| lt, hashBits, err := liteapi.TransactionHashFromString(ob.LastTxScanned()) | ||
| if err != nil { | ||
| return errors.Wrapf(err, "unable to parse last scanned tx %q", ob.LastTxScanned()) | ||
| } | ||
|
|
||
| txs, err := ob.client.GetTransactionsUntil(ctx, ob.gatewayID, lt, hashBits) | ||
| if err != nil { | ||
| return errors.Wrap(err, "unable to get transactions") | ||
| } | ||
|
|
||
| // Process from oldest to latest (ASC) | ||
| slices.Reverse(txs) | ||
|
|
||
| switch { | ||
| case len(txs) == 0: | ||
| // noop | ||
| return nil | ||
| case len(txs) > MaxTransactionsPerTick: | ||
| ob.Logger().Inbound.Info(). | ||
| Msgf("ObserveInbound: got %d transactions. Taking first %d", len(txs), MaxTransactionsPerTick) | ||
|
|
||
| txs = txs[:MaxTransactionsPerTick] | ||
| default: | ||
| ob.Logger().Inbound.Info().Msgf("ObserveInbound: got %d transactions", len(txs)) | ||
| } | ||
|
|
||
| // todo deploy sample GW to testnet | ||
| // todo send some TON and test | ||
|
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| // todo FilterInboundEvent | ||
|
|
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| for _, tx := range txs { | ||
| fmt.Println("TON TX", tx) | ||
| } | ||
|
|
||
| /* | ||
| // loop signature from oldest to latest to filter inbound events | ||
| for i := len(signatures) - 1; i >= 0; i-- { | ||
| sig := signatures[i] | ||
| sigString := sig.Signature.String() | ||
| // process successfully signature only | ||
| if sig.Err == nil { | ||
| txResult, err := ob.solClient.GetTransaction(ctx, sig.Signature, &rpc.GetTransactionOpts{}) | ||
| if err != nil { | ||
| // we have to re-scan this signature on next ticker | ||
| return errors.Wrapf(err, "error GetTransaction for chain %d sig %s", chainID, sigString) | ||
| } | ||
| // filter inbound events and vote | ||
| err = ob.FilterInboundEventsAndVote(ctx, txResult) | ||
| if err != nil { | ||
| // we have to re-scan this signature on next ticker | ||
| return errors.Wrapf(err, "error FilterInboundEventAndVote for chain %d sig %s", chainID, sigString) | ||
| } | ||
| } | ||
| // signature scanned; save last scanned signature to both memory and db, ignore db error | ||
| if err := ob.SaveLastTxScanned(sigString, sig.Slot); err != nil { | ||
| ob.Logger(). | ||
| Inbound.Error(). | ||
| Err(err). | ||
| Msgf("ObserveInbound: error saving last sig %s for chain %d", sigString, chainID) | ||
| } | ||
| ob.Logger(). | ||
| Inbound.Info(). | ||
| Msgf("ObserveInbound: last scanned sig is %s for chain %d in slot %d", sigString, chainID, sig.Slot) | ||
| */ | ||
|
|
||
| return nil | ||
| } | ||
|
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||
| func (ob *Observer) ensureLastScannedTX(ctx context.Context) error { | ||
| // noop | ||
| if ob.LastTxScanned() != "" { | ||
| return nil | ||
| } | ||
|
|
||
| tx, _, err := ob.client.GetFirstTransaction(ctx, ob.gatewayID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| txHash := liteapi.TransactionHashToString(tx.Lt, ton.Bits256(tx.Hash())) | ||
|
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| ob.WithLastTxScanned(txHash) | ||
|
|
||
| return ob.WriteLastTxScannedToDB(txHash) | ||
| } |
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