register denom metadata

proto/opinit/opchild/v1/tx.proto

@@ -97,8 +97,11 @@ message MsgFinalizeTokenDeposit {
   // height is the height of l1 which is including the deposit message
   uint64 height = 6;
 
+  // base_denom is the l1 denomination of the sent coin.
+  string base_denom = 7;
+
   /// data is a extra bytes for hooks.
-  bytes data = 7 [(gogoproto.nullable) = true, (amino.dont_omitempty) = true];
+  bytes data = 8 [(gogoproto.nullable) = true, (amino.dont_omitempty) = true];
 }
 
 // MsgFinalizeTokenDepositResponse returns deposit result data

x/opchild/keeper/keeper.go

@@ -12,6 +12,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	cosmostypes "github.com/cosmos/cosmos-sdk/x/staking/types"
 
 	"github.com/initia-labs/OPinit/x/opchild/types"
@@ -113,3 +114,22 @@ func (k Keeper) Logger(ctx context.Context) log.Logger {
 func (keeper Keeper) Router() *baseapp.MsgServiceRouter {
 	return keeper.router
 }
+
+// setDenomMetadata sets an OPinit token's denomination metadata
+func (k Keeper) setDenomMetadata(ctx context.Context, baseDenom, denom string) {
+	metadata := banktypes.Metadata{
+		Base:        denom,
+		Display:     baseDenom,
+		Symbol:      baseDenom,
+		Name:        fmt.Sprintf("%s OPinit token", baseDenom),
+		Description: fmt.Sprintf("OPinit token of %s", baseDenom),
+		DenomUnits: []*banktypes.DenomUnit{
+			{
+				Denom:    baseDenom,
+				Exponent: 0,
+			},
+		},
+	}
+
+	k.bankKeeper.SetDenomMetaData(ctx, metadata)
+}

x/opchild/keeper/msg_server.go

@@ -327,6 +327,11 @@ func (ms MsgServer) FinalizeTokenDeposit(ctx context.Context, req *types.MsgFina
 		return nil, err
 	}
 
+	// register denom metadata
+	if ok := ms.bankKeeper.HasDenomMetaData(ctx, coin.Denom); !ok {
+		ms.setDenomMetadata(ctx, req.BaseDenom, coin.Denom)
+	}
+
 	event := sdk.NewEvent(
 		types.EventTypeFinalizeTokenDeposit,
 		sdk.NewAttribute(types.AttributeKeyL1Sequence, strconv.FormatUint(req.Sequence, 10)),

x/opchild/types/expected_keepers.go

@@ -5,6 +5,7 @@ import (
 
 	"cosmossdk.io/core/address"
 	sdk "github.com/cosmos/cosmos-sdk/types"
+	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 )
 
 // AccountKeeper defines the expected account keeper (noalias)
@@ -41,6 +42,9 @@ type BankKeeper interface {
 
 	MintCoins(ctx context.Context, moduleName string, amounts sdk.Coins) error
 	BurnCoins(ctx context.Context, moduleName string, amounts sdk.Coins) error
+
+	HasDenomMetaData(ctx context.Context, denom string) bool
+	SetDenomMetaData(ctx context.Context, denomMetaData banktypes.Metadata)
 }
 
 // ValidatorSet expected properties for the set of all validators (noalias)

x/opchild/types/tx.go

@@ -228,6 +228,10 @@ func (msg MsgFinalizeTokenDeposit) Validate(ac address.Codec) error {
 		return ErrInvalidAmount
 	}
 
+	if err := sdk.ValidateDenom(msg.BaseDenom); err != nil {
+		return err
+	}
+
 	if msg.Sequence == 0 {
 		return ErrInvalidSequence
 	}

x/ophost/keeper/msg_server.go

@@ -77,9 +77,6 @@ func (ms MsgServer) CreateBridge(ctx context.Context, req *types.MsgCreateBridge
 		sdk.NewAttribute(types.AttributeKeyBridgeId, strconv.FormatUint(bridgeId, 10)),
 	))
 
-	// TODO in initia app
-	// permit to create bridge only when the ibc channel has
-	// GetNextL1SequenceSend == 1
 	if err := ms.bridgeHook.BridgeCreated(ctx, bridgeId, req.Config); err != nil {
 		return nil, err
 	}