Batch token price updates (#623)

## Motivation
Batch all token price updates on leader lane so save price update costs

## Solution
Leader lane:
1. finds out all dest tokens from the Router
2. queries and reports prices for all dest tokens

core/services/ocr2/plugins/ccip/ccipcommit/factory.go

@@ -93,7 +93,7 @@ func (rf *CommitReportingPluginFactory) NewReportingPlugin(config types.Reportin
 			lggr:                    lggr,
 			inflightReports:         newInflightCommitReportsContainer(rf.config.commitStore.OffchainConfig().InflightCacheExpiry),
 			destPriceRegistryReader: rf.destPriceRegReader,
-			offRampReader:           rf.config.offRamp,
+			offRampReaders:          rf.config.offRamps,
 			gasPriceEstimator:       rf.config.commitStore.GasPriceEstimator(),
 			offchainConfig:          pluginOffChainConfig,
 			metricsCollector:        rf.config.metricsCollector,

core/services/ocr2/plugins/ccip/ccipcommit/initializers.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 
 	"github.com/Masterminds/semver/v3"
+	"github.com/ethereum/go-ethereum/accounts/abi/bind"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/pkg/errors"
 	chainselectors "github.com/smartcontractkit/chain-selectors"
@@ -17,6 +18,7 @@ import (
 	commonlogger "github.com/smartcontractkit/chainlink-common/pkg/logger"
 
 	cciptypes "github.com/smartcontractkit/chainlink-common/pkg/types/ccip"
+
 	"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ccip/internal/cache"
 	"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ccip/internal/ccipcalc"
 	"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ccip/internal/ccipdata/ccipdataprovider"
@@ -43,7 +45,7 @@ import (
 )
 
 func NewCommitServices(ctx context.Context, lggr logger.Logger, jb job.Job, chainSet legacyevm.LegacyChainContainer, new bool, pr pipeline.Runner, argsNoPlugin libocr2.OCR2OracleArgs, logError func(string), qopts ...pg.QOpt) ([]job.ServiceCtx, error) {
-	pluginConfig, backfillArgs, chainHealthcheck, err := jobSpecToCommitPluginConfig(lggr, jb, pr, chainSet, qopts...)
+	pluginConfig, backfillArgs, chainHealthcheck, err := jobSpecToCommitPluginConfig(ctx, lggr, jb, pr, chainSet, qopts...)
 	if err != nil {
 		return nil, err
 	}
@@ -114,7 +116,7 @@ func UnregisterCommitPluginLpFilters(ctx context.Context, lggr logger.Logger, jb
 	return multiErr
 }
 
-func jobSpecToCommitPluginConfig(lggr logger.Logger, jb job.Job, pr pipeline.Runner, chainSet legacyevm.LegacyChainContainer, qopts ...pg.QOpt) (*CommitPluginStaticConfig, *ccipcommon.BackfillArgs, *cache.ObservedChainHealthcheck, error) {
+func jobSpecToCommitPluginConfig(ctx context.Context, lggr logger.Logger, jb job.Job, pr pipeline.Runner, chainSet legacyevm.LegacyChainContainer, qopts ...pg.QOpt) (*CommitPluginStaticConfig, *ccipcommon.BackfillArgs, *cache.ObservedChainHealthcheck, error) {
 	params, err := extractJobSpecParams(jb, chainSet)
 	if err != nil {
 		return nil, nil, nil, err
@@ -186,28 +188,68 @@ func jobSpecToCommitPluginConfig(lggr logger.Logger, jb job.Job, pr pipeline.Run
 	if err != nil {
 		return nil, nil, nil, errors.Wrap(err, "failed offramp reader")
 	}
+	// Look up all destination offRamps connected to the same router
+	destRouterAddr, err := offRampReader.GetRouter(ctx)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	destRouterEvmAddr, err := ccipcalc.GenericAddrToEvm(destRouterAddr)
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	destRouter, err := router.NewRouter(destRouterEvmAddr, params.destChain.Client())
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	destRouterOffRamps, err := destRouter.GetOffRamps(&bind.CallOpts{Context: ctx})
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	var destOffRampReaders []ccipdata.OffRampReader
+	for _, o := range destRouterOffRamps {
+		destOffRampAddr := cciptypes.Address(o.OffRamp.String())
+		destOffRampReader, err2 := factory.NewOffRampReader(
+			commitLggr,
+			versionFinder,
+			destOffRampAddr,
+			params.destChain.Client(),
+			params.destChain.LogPoller(),
+			params.destChain.GasEstimator(),
+			params.destChain.Config().EVM().GasEstimator().PriceMax().ToInt(),
+			true,
+			qopts...,
+		)
+		if err2 != nil {
+			return nil, nil, nil, err2
+		}
+
+		destOffRampReaders = append(destOffRampReaders, destOffRampReader)
+	}
+
 	onRampRouterAddr, err := onRampReader.RouterAddress()
 	if err != nil {
 		return nil, nil, nil, err
 	}
-	routerAddr, err := ccipcalc.GenericAddrToEvm(onRampRouterAddr)
+	sourceRouterAddr, err := ccipcalc.GenericAddrToEvm(onRampRouterAddr)
 	if err != nil {
 		return nil, nil, nil, err
 	}
-	sourceRouter, err := router.NewRouter(routerAddr, params.sourceChain.Client())
+	sourceRouter, err := router.NewRouter(sourceRouterAddr, params.sourceChain.Client())
 	if err != nil {
 		return nil, nil, nil, err
 	}
-	sourceNative, err := sourceRouter.GetWrappedNative(nil)
+	sourceNative, err := sourceRouter.GetWrappedNative(&bind.CallOpts{Context: ctx})
 	if err != nil {
 		return nil, nil, nil, err
 	}
 
 	// Prom wrappers
 	onRampReader = observability.NewObservedOnRampReader(onRampReader, params.sourceChain.ID().Int64(), ccip.CommitPluginLabel)
-	offRampReader = observability.NewObservedOffRampReader(offRampReader, params.destChain.ID().Int64(), ccip.CommitPluginLabel)
 	commitStoreReader = observability.NewObservedCommitStoreReader(commitStoreReader, params.destChain.ID().Int64(), ccip.CommitPluginLabel)
 	metricsCollector := ccip.NewPluginMetricsCollector(ccip.CommitPluginLabel, params.sourceChain.ID().Int64(), params.destChain.ID().Int64())
+	for i, o := range destOffRampReaders {
+		destOffRampReaders[i] = observability.NewObservedOffRampReader(o, params.destChain.ID().Int64(), ccip.CommitPluginLabel)
+	}
 
 	chainHealthcheck := cache.NewObservedChainHealthCheck(
 		cache.NewChainHealthcheck(
@@ -237,7 +279,7 @@ func jobSpecToCommitPluginConfig(lggr logger.Logger, jb job.Job, pr pipeline.Run
 	return &CommitPluginStaticConfig{
 			lggr:                  commitLggr,
 			onRampReader:          onRampReader,
-			offRamp:               offRampReader,
+			offRamps:              destOffRampReaders,
 			sourceNative:          ccipcalc.EvmAddrToGeneric(sourceNative),
 			priceGetter:           priceGetter,
 			sourceChainSelector:   params.commitStoreStaticCfg.SourceChainSelector,

core/services/ocr2/plugins/ccip/ccipcommit/ocr2.go

@@ -17,6 +17,7 @@ import (
 	"github.com/smartcontractkit/chainlink-common/pkg/utils/mathutil"
 
 	cciptypes "github.com/smartcontractkit/chainlink-common/pkg/types/ccip"
+
 	"github.com/smartcontractkit/chainlink/v2/core/services/ocr2/plugins/ccip/internal/cache"
 
 	"github.com/smartcontractkit/chainlink/v2/core/logger"
@@ -60,7 +61,7 @@ type CommitPluginStaticConfig struct {
 	sourceChainSelector uint64
 	sourceNative        cciptypes.Address
 	// Dest
-	offRamp               ccipdata.OffRampReader
+	offRamps              []ccipdata.OffRampReader
 	commitStore           ccipdata.CommitStoreReader
 	destChainSelector     uint64
 	priceRegistryProvider ccipdataprovider.PriceRegistry
@@ -81,7 +82,7 @@ type CommitReportingPlugin struct {
 	commitStoreReader       ccipdata.CommitStoreReader
 	destPriceRegistryReader ccipdata.PriceRegistryReader
 	offchainConfig          cciptypes.CommitOffchainConfig
-	offRampReader           ccipdata.OffRampReader
+	offRampReaders          []ccipdata.OffRampReader
 	F                       int
 	// Offchain
 	priceGetter      pricegetter.PriceGetter
@@ -213,26 +214,24 @@ func (r *CommitReportingPlugin) observePriceUpdates(
 		return nil, nil, nil
 	}
 
-	feeTokens, bridgeableTokens, err := ccipcommon.GetDestinationTokens(ctx, r.offRampReader, r.destPriceRegistryReader)
+	sortedChainTokens, err := ccipcommon.GetSortedChainTokens(ctx, r.offRampReaders, r.destPriceRegistryReader)
 	if err != nil {
 		return nil, nil, fmt.Errorf("get destination tokens: %w", err)
 	}
-	destTokens := ccipcommon.FlattenUniqueSlice(feeTokens, bridgeableTokens)
 
-	return r.generatePriceUpdates(ctx, lggr, destTokens)
+	return r.generatePriceUpdates(ctx, lggr, sortedChainTokens)
 }
 
 // All prices are USD ($1=1e18) denominated. All prices must be not nil.
 // Return token prices should contain the exact same tokens as in tokenDecimals.
 func (r *CommitReportingPlugin) generatePriceUpdates(
 	ctx context.Context,
 	lggr logger.Logger,
-	destTokens []cciptypes.Address,
+	sortedChainTokens []cciptypes.Address,
 ) (sourceGasPriceUSD *big.Int, tokenPricesUSD map[cciptypes.Address]*big.Int, err error) {
 	// Include wrapped native in our token query as way to identify the source native USD price.
 	// notice USD is in 1e18 scale, i.e. $1 = 1e18
-	queryTokens := ccipcommon.FlattenUniqueSlice([]cciptypes.Address{r.sourceNative}, destTokens)
-	sort.Slice(queryTokens, func(i, j int) bool { return queryTokens[i] < queryTokens[j] }) // make the query deterministic
+	queryTokens := ccipcommon.FlattenUniqueSlice([]cciptypes.Address{r.sourceNative}, sortedChainTokens)
 
 	rawTokenPricesUSD, err := r.priceGetter.TokenPricesUSD(ctx, queryTokens)
 	if err != nil {
@@ -252,13 +251,13 @@ func (r *CommitReportingPlugin) generatePriceUpdates(
 		return nil, nil, fmt.Errorf("missing source native (%s) price", r.sourceNative)
 	}
 
-	destTokensDecimals, err := r.destPriceRegistryReader.GetTokensDecimals(ctx, destTokens)
+	destTokensDecimals, err := r.destPriceRegistryReader.GetTokensDecimals(ctx, sortedChainTokens)
 	if err != nil {
 		return nil, nil, fmt.Errorf("get tokens decimals: %w", err)
 	}
 
 	tokenPricesUSD = make(map[cciptypes.Address]*big.Int, len(rawTokenPricesUSD))
-	for i, token := range destTokens {
+	for i, token := range sortedChainTokens {
 		tokenPricesUSD[token] = calculateUsdPer1e18TokenAmount(rawTokenPricesUSD[token], destTokensDecimals[i])
 	}
 
@@ -380,14 +379,13 @@ func (r *CommitReportingPlugin) Report(ctx context.Context, epochAndRound types.
 
 	parsableObservations := ccip.GetParsableObservations[ccip.CommitObservation](lggr, observations)
 
-	feeTokens, bridgeableTokens, err := ccipcommon.GetDestinationTokens(ctx, r.offRampReader, r.destPriceRegistryReader)
+	sortedChainTokens, err := ccipcommon.GetSortedChainTokens(ctx, r.offRampReaders, r.destPriceRegistryReader)
 	if err != nil {
 		return false, nil, fmt.Errorf("get destination tokens: %w", err)
 	}
-	destTokens := ccipcommon.FlattenUniqueSlice(feeTokens, bridgeableTokens)
 
 	// Filters out parsable but faulty observations
-	validObservations, err := validateObservations(ctx, lggr, destTokens, r.F, parsableObservations, r.offchainConfig.PriceReportingDisabled)
+	validObservations, err := validateObservations(ctx, lggr, sortedChainTokens, r.F, parsableObservations, r.offchainConfig.PriceReportingDisabled)
 	if err != nil {
 		return false, nil, err
 	}