Fix incorrect inflation drop

sentinel-official · Sep 27, 2021 · eae2ad6 · eae2ad6
1 parent 6c3dcc8
commit eae2ad6
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Showing 3 changed files with 32 additions and 2 deletions.
diff --git a/x/mint/abci.go b/x/mint/abci.go
@@ -1,14 +1,29 @@
 package mint
 
 import (
+	"time"
+
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	abcitypes "github.com/tendermint/tendermint/abci/types"
 
 	"github.com/sentinel-official/hub/x/mint/keeper"
 	"github.com/sentinel-official/hub/x/mint/types"
 )
 
+const (
+	fix1Height = 2_642_500
+)
+
 func BeginBlock(ctx sdk.Context, k keeper.Keeper) []abcitypes.ValidatorUpdate {
+	if ctx.BlockHeight() == fix1Height {
+		k.SetInflation(ctx, types.Inflation{
+			Max:        sdk.NewDecWithPrec(49, 2),
+			Min:        sdk.NewDecWithPrec(43, 2),
+			RateChange: sdk.NewDecWithPrec(6, 2),
+			Timestamp:  time.Date(2021, 9, 27, 12, 0, 0, 0, time.UTC),
+		})
+	}
+
 	k.IterateInflations(ctx, func(_ int, inflation types.Inflation) bool {
 		if inflation.Timestamp.After(ctx.BlockTime()) {
 			return true
@@ -18,10 +33,15 @@ func BeginBlock(ctx sdk.Context, k keeper.Keeper) []abcitypes.ValidatorUpdate {
 		params.InflationMax = inflation.Max
 		params.InflationMin = inflation.Min
 		params.InflationRateChange = inflation.RateChange
-
 		k.SetParams(ctx, params)
-		k.DeleteInflation(ctx, inflation.Timestamp)
 
+		if ctx.BlockHeight() >= fix1Height {
+			minter := k.GetMinter(ctx)
+			minter.Inflation = inflation.Min
+			k.SetMinter(ctx, minter)
+		}
+
+		k.DeleteInflation(ctx, inflation.Timestamp)
 		return false
 	})
 

diff --git a/x/mint/expected/keeper.go b/x/mint/expected/keeper.go
@@ -6,6 +6,8 @@ import (
 )
 
 type MintKeeper interface {
+	GetMinter(ctx sdk.Context) minttypes.Minter
+	SetMinter(ctx sdk.Context, minter minttypes.Minter)
 	GetParams(ctx sdk.Context) minttypes.Params
 	SetParams(ctx sdk.Context, params minttypes.Params)
 }
diff --git a/x/mint/keeper/alias.go b/x/mint/keeper/alias.go
@@ -5,6 +5,14 @@ import (
 	minttypes "github.com/cosmos/cosmos-sdk/x/mint/types"
 )
 
+func (k *Keeper) GetMinter(ctx sdk.Context) minttypes.Minter {
+	return k.mint.GetMinter(ctx)
+}
+
+func (k *Keeper) SetMinter(ctx sdk.Context, minter minttypes.Minter) {
+	k.mint.SetMinter(ctx, minter)
+}
+
 func (k *Keeper) GetParams(ctx sdk.Context) minttypes.Params {
 	return k.mint.GetParams(ctx)
 }