CCIP 3388 - add offramp generation (#14526)

* add offramp getters

* Move GetRemoteChainSelectors to router

* run lint

* remove unnecessary owner calls

integration-tests/deployment/ccip/state.go

@@ -116,6 +116,17 @@ func (c CCIPChainState) GenerateView() (view.ChainView, error) {
 		}
 		chainView.OnRamp[c.OnRamp.Address().Hex()] = onRampView
 	}
+
+	if c.OffRamp != nil && c.Router != nil {
+		offRampView, err := v1_6.GenerateOffRampView(
+			c.OffRamp,
+			c.Router,
+		)
+		if err != nil {
+			return chainView, err
+		}
+		chainView.OffRamp[c.OffRamp.Address().Hex()] = offRampView
+	}
 	return chainView, nil
 }
 

integration-tests/deployment/ccip/view/chain.go

@@ -13,6 +13,7 @@ type ChainView struct {
 	Router             map[string]v1_2.RouterView             `json:"router,omitempty"`
 	RMN                map[string]v1_6.RMNRemoteView          `json:"rmn,omitempty"`
 	OnRamp             map[string]v1_6.OnRampView             `json:"onRamp,omitempty"`
+	OffRamp            map[string]v1_6.OffRampView            `json:"offRamp,omitempty"`
 }
 
 func NewChain() ChainView {
@@ -22,6 +23,7 @@ func NewChain() ChainView {
 		Router:             make(map[string]v1_2.RouterView),
 		RMN:                make(map[string]v1_6.RMNRemoteView),
 		OnRamp:             make(map[string]v1_6.OnRampView),
+		OffRamp:            make(map[string]v1_6.OffRampView),
 		FeeQuoter:          make(map[string]v1_6.FeeQuoterView),
 	}
 }

integration-tests/deployment/ccip/view/v1_2/router.go

@@ -54,3 +54,18 @@ func GenerateRouterView(r *router.Router) (RouterView, error) {
 		OffRamps:         offRamps,
 	}, nil
 }
+
+// From the perspective of the OnRamp, the destination chains are the source chains for the OffRamp.
+func GetRemoteChainSelectors(routerContract *router.Router) ([]uint64, error) {
+	remoteSelectors := make([]uint64, 0)
+	offRamps, err := routerContract.GetOffRamps(nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get offRamps from router: %w", err)
+	}
+	// lanes are bidirectional, so we get the list of source chains to know which chains are supported as destinations as well
+	for _, offRamp := range offRamps {
+		remoteSelectors = append(remoteSelectors, offRamp.SourceChainSelector)
+	}
+
+	return remoteSelectors, nil
+}

integration-tests/deployment/ccip/view/v1_6/feequoter.go

@@ -6,6 +6,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 
 	"github.com/smartcontractkit/chainlink/integration-tests/deployment/ccip/view/types"
+	"github.com/smartcontractkit/chainlink/integration-tests/deployment/ccip/view/v1_2"
 	"github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/fee_quoter"
 	router1_2 "github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/router"
 	"github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/token_admin_registry"
@@ -83,7 +84,7 @@ func GenerateFeeQuoterView(fqContract *fee_quoter.FeeQuoter, router *router1_2.R
 	}
 	// find router contract in dependencies
 	fq.DestinationChainConfig = make(map[uint64]FeeQuoterDestChainConfig)
-	destSelectors, err := GetDestinationSelectors(router)
+	destSelectors, err := v1_2.GetRemoteChainSelectors(router)
 	if err != nil {
 		return FeeQuoterView{}, fmt.Errorf("view error for FeeQuoter: %w", err)
 	}
@@ -137,17 +138,3 @@ func GetSupportedTokens(taContract *token_admin_registry.TokenAdminRegistry) ([]
 	}
 	return tokens, nil
 }
-
-func GetDestinationSelectors(routerContract *router1_2.Router) ([]uint64, error) {
-	destSelectors := make([]uint64, 0)
-	offRamps, err := routerContract.GetOffRamps(nil)
-	if err != nil {
-		return nil, fmt.Errorf("failed to get offRamps from router: %w", err)
-	}
-	// lanes are bidirectional, so we get the list of source chains to know which chains are supported as destinations as well
-	for _, offRamp := range offRamps {
-		destSelectors = append(destSelectors, offRamp.SourceChainSelector)
-	}
-
-	return destSelectors, nil
-}

integration-tests/deployment/ccip/view/v1_6/offramp.go

@@ -0,0 +1,64 @@
+package v1_6
+
+import (
+	"fmt"
+
+	"github.com/smartcontractkit/chainlink/integration-tests/deployment/ccip/view/types"
+	"github.com/smartcontractkit/chainlink/integration-tests/deployment/ccip/view/v1_2"
+	"github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/offramp"
+	router1_2 "github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/router"
+)
+
+type OffRampView struct {
+	types.ContractMetaData
+	DynamicConfig             offramp.OffRampDynamicConfig                `json:"dynamicConfig"`
+	LatestPriceSequenceNumber uint64                                      `json:"latestPriceSequenceNumber"`
+	SourceChainConfigs        map[uint64]offramp.OffRampSourceChainConfig `json:"sourceChainConfigs"`
+	StaticConfig              offramp.OffRampStaticConfig                 `json:"staticConfig"`
+}
+
+func GenerateOffRampView(
+	offRampContract *offramp.OffRamp,
+	routerContract *router1_2.Router,
+) (OffRampView, error) {
+	tv, err := types.NewContractMetaData(offRampContract, offRampContract.Address())
+	if err != nil {
+		return OffRampView{}, err
+	}
+
+	dynamicConfig, err := offRampContract.GetDynamicConfig(nil)
+	if err != nil {
+		return OffRampView{}, fmt.Errorf("failed to get dynamic config: %w", err)
+	}
+
+	latestPriceSequenceNumber, err := offRampContract.GetLatestPriceSequenceNumber(nil)
+	if err != nil {
+		return OffRampView{}, fmt.Errorf("failed to get latest price sequence number: %w", err)
+	}
+
+	sourceChainSelectors, err := v1_2.GetRemoteChainSelectors(routerContract)
+	if err != nil {
+		return OffRampView{}, fmt.Errorf("failed to get source chain selectors: %w", err)
+	}
+	sourceChainConfigs := make(map[uint64]offramp.OffRampSourceChainConfig)
+	for _, sourceChainSelector := range sourceChainSelectors {
+		sourceChainConfig, err := offRampContract.GetSourceChainConfig(nil, sourceChainSelector)
+		if err != nil {
+			return OffRampView{}, fmt.Errorf("failed to get source chain config: %w", err)
+		}
+		sourceChainConfigs[sourceChainSelector] = sourceChainConfig
+	}
+
+	staticConfig, err := offRampContract.GetStaticConfig(nil)
+	if err != nil {
+		return OffRampView{}, fmt.Errorf("failed to get static config: %w", err)
+	}
+
+	return OffRampView{
+		ContractMetaData:          tv,
+		DynamicConfig:             dynamicConfig,
+		LatestPriceSequenceNumber: latestPriceSequenceNumber,
+		SourceChainConfigs:        sourceChainConfigs,
+		StaticConfig:              staticConfig,
+	}, nil
+}

integration-tests/deployment/ccip/view/v1_6/onramp.go

@@ -6,6 +6,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 
 	"github.com/smartcontractkit/chainlink/integration-tests/deployment/ccip/view/types"
+	"github.com/smartcontractkit/chainlink/integration-tests/deployment/ccip/view/v1_2"
 	"github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/onramp"
 	router1_2 "github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/router"
 	"github.com/smartcontractkit/chainlink/v2/core/gethwrappers/ccip/generated/token_admin_registry"
@@ -51,7 +52,7 @@ func GenerateOnRampView(
 		return OnRampView{}, fmt.Errorf("failed to get owner: %w", err)
 	}
 	// populate destChainSelectors from router
-	destChainSelectors, err := GetDestinationSelectors(routerContract)
+	destChainSelectors, err := v1_2.GetRemoteChainSelectors(routerContract)
 	if err != nil {
 		return OnRampView{}, fmt.Errorf("failed to get destination selectors: %w", err)
 	}