feat: add event core api to runtime (#15547)

Co-authored-by: Facundo Medica <14063057+facundomedica@users.noreply.github.com>

CHANGELOG.md

@@ -55,6 +55,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (mempool) [#14484](https://github.com/cosmos/cosmos-sdk/pull/14484) Add priority nonce mempool option for transaction replacement.
 * (x/bank) [#14894](https://github.com/cosmos/cosmos-sdk/pull/14894) Return a human readable denomination for IBC vouchers when querying bank balances. Added a `ResolveDenom` parameter to `types.QueryAllBalancesRequest` and `--resolve-denom` flag to `GetBalancesCmd()`.
 * (x/gov) [#15151](https://github.com/cosmos/cosmos-sdk/pull/15151) Add `burn_vote_quorum`, `burn_proposal_deposit_prevote` and `burn_vote_veto` params to allow applications to decide if they would like to burn deposits
+* (runtime) [#15547](https://github.com/cosmos/cosmos-sdk/pull/15547) Allow runtime to pass event core api service to modules
 
 ### Improvements
 

runtime/events.go

@@ -0,0 +1,59 @@
+package runtime
+
+import (
+	"context"
+
+	"cosmossdk.io/core/event"
+	"google.golang.org/protobuf/runtime/protoiface"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+var _ event.Service = (*EventService)(nil)
+
+type EventService struct {
+	Events
+}
+
+func (es EventService) EventManager(ctx context.Context) event.Manager {
+	sdkCtx := sdk.UnwrapSDKContext(ctx)
+	return &Events{sdkCtx.EventManager()}
+}
+
+var _ event.Manager = (*Events)(nil)
+
+type Events struct {
+	sdk.EventManagerI
+}
+
+func NewEventManager(ctx context.Context) event.Manager {
+	sdkCtx := sdk.UnwrapSDKContext(ctx)
+	return &Events{sdkCtx.EventManager()}
+}
+
+// Emit emits an typed event that is defined in the protobuf file.
+// In the future these events will be added to consensus
+func (e Events) Emit(ctx context.Context, event protoiface.MessageV1) error {
+	return e.EventManagerI.EmitTypedEvent(event)
+}
+
+// EmitKV emits a key value pair event
+func (e Events) EmitKV(ctx context.Context, eventType string, attrs ...event.Attribute) error {
+	attributes := make([]sdk.Attribute, 0, len(attrs))
+
+	for _, attr := range attrs {
+		attributes = append(attributes, sdk.NewAttribute(attr.Key, attr.Value))
+	}
+
+	events := sdk.Events{
+		sdk.NewEvent(eventType, attributes...),
+	}
+	e.EventManagerI.EmitEvents(events)
+	return nil
+}
+
+// Emit emits an typed event that is defined in the protobuf file.
+// In the future these events will be added to consensus
+func (e Events) EmitNonConsensus(ctx context.Context, event protoiface.MessageV1) error {
+	return e.EventManagerI.EmitTypedEvent(event)
+}

runtime/module.go

@@ -13,6 +13,7 @@ import (
 	runtimev1alpha1 "cosmossdk.io/api/cosmos/app/runtime/v1alpha1"
 	appv1alpha1 "cosmossdk.io/api/cosmos/app/v1alpha1"
 	"cosmossdk.io/core/appmodule"
+	"cosmossdk.io/core/event"
 	"cosmossdk.io/depinject"
 
 	storetypes "cosmossdk.io/store/types"
@@ -63,6 +64,7 @@ func init() {
 			ProvideKVStoreService,
 			ProvideMemoryStoreService,
 			ProvideTransientStoreService,
+			ProvideEventService,
 		),
 		appmodule.Invoke(SetupAppBuilder),
 	)
@@ -202,3 +204,7 @@ func ProvideTransientStoreService(key depinject.ModuleKey, app *AppBuilder) stor
 	storeKey := ProvideTransientStoreKey(key, app)
 	return transientStoreService{key: storeKey}
 }
+
+func ProvideEventService() event.Service {
+	return EventService{}
+}

simapp/app.go

@@ -285,7 +285,7 @@ func NewSimApp(
 	app.ParamsKeeper = initParamsKeeper(appCodec, legacyAmino, keys[paramstypes.StoreKey], tkeys[paramstypes.TStoreKey])
 
 	// set the BaseApp's parameter store
-	app.ConsensusParamsKeeper = consensusparamkeeper.NewKeeper(appCodec, runtime.NewKVStoreService(keys[consensusparamtypes.StoreKey]), authtypes.NewModuleAddress(govtypes.ModuleName).String())
+	app.ConsensusParamsKeeper = consensusparamkeeper.NewKeeper(appCodec, runtime.NewKVStoreService(keys[consensusparamtypes.StoreKey]), authtypes.NewModuleAddress(govtypes.ModuleName).String(), runtime.EventService{})
 	bApp.SetParamStore(app.ConsensusParamsKeeper.Params)
 
 	// add keepers

x/consensus/keeper/keeper.go

@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"cosmossdk.io/collections"
+	"cosmossdk.io/core/event"
 	storetypes "cosmossdk.io/core/store"
 	"cosmossdk.io/errors"
 	cmtproto "github.com/cometbft/cometbft/proto/tendermint/types"
@@ -20,16 +21,18 @@ var StoreKey = "Consensus"
 
 type Keeper struct {
 	storeService storetypes.KVStoreService
+	event        event.Service
 
 	authority string
 	Params    collections.Item[cmtproto.ConsensusParams]
 }
 
-func NewKeeper(cdc codec.BinaryCodec, storeService storetypes.KVStoreService, authority string) Keeper {
+func NewKeeper(cdc codec.BinaryCodec, storeService storetypes.KVStoreService, authority string, em event.Service) Keeper {
 	sb := collections.NewSchemaBuilder(storeService)
 	return Keeper{
 		storeService: storeService,
 		authority:    authority,
+		event:        em,
 		Params:       collections.NewItem(sb, collections.NewPrefix("Consensus"), "params", codec.CollValue[cmtproto.ConsensusParams](cdc)),
 	}
 }
@@ -70,5 +73,13 @@ func (k Keeper) UpdateParams(ctx context.Context, req *types.MsgUpdateParams) (*
 		return nil, err
 	}
 
+	if err := k.event.EventManager(ctx).EmitKV(
+		ctx,
+		"update_consensus_params",
+		event.Attribute{Key: "authority", Value: req.Authority},
+		event.Attribute{Key: "parameters", Value: consensusParams.String()}); err != nil {
+		return nil, err
+	}
+
 	return &types.MsgUpdateParamsResponse{}, nil
 }

x/consensus/keeper/keeper_test.go

@@ -35,7 +35,7 @@ func (s *KeeperTestSuite) SetupTest() {
 	encCfg := moduletestutil.MakeTestEncodingConfig()
 	storeService := runtime.NewKVStoreService(key)
 
-	keeper := consensusparamkeeper.NewKeeper(encCfg.Codec, storeService, authtypes.NewModuleAddress(govtypes.ModuleName).String())
+	keeper := consensusparamkeeper.NewKeeper(encCfg.Codec, storeService, authtypes.NewModuleAddress(govtypes.ModuleName).String(), runtime.EventService{})
 
 	s.ctx = ctx
 	s.consensusParamsKeeper = &keeper

x/consensus/module.go

@@ -6,6 +6,7 @@ import (
 
 	modulev1 "cosmossdk.io/api/cosmos/consensus/module/v1"
 	"cosmossdk.io/core/appmodule"
+	"cosmossdk.io/core/event"
 	"cosmossdk.io/depinject"
 	abci "github.com/cometbft/cometbft/abci/types"
 	gwruntime "github.com/grpc-ecosystem/grpc-gateway/runtime"
@@ -147,6 +148,7 @@ type ConsensusInputs struct {
 	Config       *modulev1.Module
 	Cdc          codec.Codec
 	StoreService storetypes.KVStoreService
+	EventManager event.Service
 }
 
 //nolint:revive
@@ -165,7 +167,7 @@ func ProvideModule(in ConsensusInputs) ConsensusOutputs {
 		authority = authtypes.NewModuleAddressOrBech32Address(in.Config.Authority)
 	}
 
-	k := keeper.NewKeeper(in.Cdc, in.StoreService, authority.String())
+	k := keeper.NewKeeper(in.Cdc, in.StoreService, authority.String(), in.EventManager)
 	m := NewAppModule(in.Cdc, k)
 	baseappOpt := func(app *baseapp.BaseApp) {
 		app.SetParamStore(k.Params)