fix(x/protocolpool): withdraw rewards before export genesis (backport #23467) (#23471)

Co-authored-by: Julien Robert <julien@rbrt.fr>

simapp/app_config.go

@@ -174,7 +174,28 @@ var (
 					},
 					// When ExportGenesis is not specified, the export genesis module order
 					// is equal to the init genesis order
-					// ExportGenesis: []string{},
+					ExportGenesis: []string{
+						consensustypes.ModuleName,
+						accounts.ModuleName,
+						authtypes.ModuleName,
+						pooltypes.ModuleName, // Must be exported before bank
+						banktypes.ModuleName,
+						distrtypes.ModuleName,
+						stakingtypes.ModuleName,
+						slashingtypes.ModuleName,
+						govtypes.ModuleName,
+						minttypes.ModuleName,
+						genutiltypes.ModuleName,
+						evidencetypes.ModuleName,
+						authz.ModuleName,
+						feegrant.ModuleName,
+						nft.ModuleName,
+						group.ModuleName,
+						upgradetypes.ModuleName,
+						vestingtypes.ModuleName,
+						circuittypes.ModuleName,
+						epochstypes.ModuleName,
+					},
 					// Uncomment if you want to set a custom migration order here.
 					// OrderMigrations: []string{},
 					// SkipStoreKeys is an optional list of store keys to skip when constructing the

x/protocolpool/keeper/genesis.go

@@ -76,6 +76,21 @@ func (k Keeper) InitGenesis(ctx context.Context, data *types.GenesisState) error
 }
 
 func (k Keeper) ExportGenesis(ctx context.Context) (*types.GenesisState, error) {
+	// refresh all funds
+	if err := k.IterateAndUpdateFundsDistribution(ctx); err != nil {
+		return nil, err
+	}
+
+	// withdraw all rewards before exporting genesis
+	if err := k.RecipientFundDistribution.Walk(ctx, nil, func(key sdk.AccAddress, value types.DistributionAmount) (stop bool, err error) {
+		if _, err := k.withdrawRecipientFunds(ctx, key.Bytes()); err != nil {
+			return true, err
+		}
+		return false, nil
+	}); err != nil {
+		return nil, err
+	}
+
 	var cf []*types.ContinuousFund
 	err := k.ContinuousFund.Walk(ctx, nil, func(key sdk.AccAddress, value types.ContinuousFund) (stop bool, err error) {
 		recipient, err := k.authKeeper.AddressCodec().BytesToString(key)

x/protocolpool/keeper/genesis_test.go

@@ -3,13 +3,18 @@ package keeper_test
 import (
 	"time"
 
+	"github.com/golang/mock/gomock"
+
 	"cosmossdk.io/math"
 	"cosmossdk.io/x/protocolpool/types"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
-func (suite *KeeperTestSuite) TestInitGenesis() {
+func (suite *KeeperTestSuite) TestInitExportGenesis() {
+	suite.bankKeeper.EXPECT().SendCoinsFromModuleToModule(gomock.Any(), types.ProtocolPoolDistrAccount, gomock.Any(), gomock.Any()).Return(nil).AnyTimes()
+	suite.bankKeeper.EXPECT().SendCoinsFromModuleToAccount(gomock.Any(), types.StreamAccount, gomock.Any(), gomock.Any()).Return(nil).AnyTimes()
+
 	hour := time.Hour
 	gs := types.NewGenesisState(
 		[]*types.ContinuousFund{
@@ -49,5 +54,5 @@ func (suite *KeeperTestSuite) TestInitGenesis() {
 	suite.Require().NoError(err)
 	suite.Require().Equal(gs.ContinuousFund, exportedGenState.ContinuousFund)
 	suite.Require().Equal(gs.Budget, exportedGenState.Budget)
-	suite.Require().Equal(math.NewInt(101), exportedGenState.LastBalance.Amount.AmountOf("stake"))
+	suite.Require().Equal(math.ZeroInt(), exportedGenState.LastBalance.Amount.AmountOf("stake"))
 }