Merge pull request #787 from cybercongress/v5-hardfork

V5 hardfork

app/app.go

@@ -82,6 +82,7 @@ var (
 	Bech32Prefix = "bostrom"
 
 	Upgrades = []upgrades.Upgrade{v2.Upgrade, v3.Upgrade, v4.Upgrade}
+	Forks    = []upgrades.Fork{v5.Fork}
 )
 
 // These constants are derived from the above variables.
@@ -339,6 +340,7 @@ func (app *App) Name() string {
 
 // BeginBlocker application updates every begin block
 func (app *App) BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock {
+	BeginBlockForks(ctx, app)
 	return app.ModuleManager.BeginBlock(ctx, req)
 }
 

app/forks.go

@@ -0,0 +1,15 @@
+package app
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+// BeginBlockForks is intended to be ran in a chain upgrade.
+func BeginBlockForks(ctx sdk.Context, app *App) {
+	for _, fork := range Forks {
+		if ctx.BlockHeight() == fork.UpgradeHeight {
+			fork.BeginForkLogic(ctx, &app.AppKeepers)
+			return
+		}
+	}
+}

app/upgrades/types.go

@@ -35,3 +35,18 @@ type Upgrade struct {
 	// Store upgrades, should be used for any new modules introduced, new modules deleted, or store names renamed.
 	StoreUpgrades store.StoreUpgrades
 }
+
+// Fork defines a struct containing the requisite fields for a non-software upgrade proposal
+// Hard Fork at a given height to implement.
+// There is one time code that can be added for the start of the Fork, in `BeginForkLogic`.
+// Any other change in the code should be height-gated, if the goal is to have old and new binaries
+// to be compatible prior to the upgrade height.
+type Fork struct {
+	// Upgrade version name, for the upgrade handler, e.g. `v7`
+	UpgradeName string
+	// height the upgrade occurs at
+	UpgradeHeight int64
+
+	// Function that runs some custom state transition code at the beginning of a fork.
+	BeginForkLogic func(ctx sdk.Context, keepers *keepers.AppKeepers)
+}

app/upgrades/v5/constants.go

@@ -0,0 +1,17 @@
+package v5
+
+import (
+	"github.com/cybercongress/go-cyber/v5/app/upgrades"
+)
+
+const (
+	UpgradeName = "v5"
+
+	UpgradeHeight = 15_700_842
+)
+
+var Fork = upgrades.Fork{
+	UpgradeName:    UpgradeName,
+	UpgradeHeight:  UpgradeHeight,
+	BeginForkLogic: RunForkLogic,
+}

app/upgrades/v5/forks.go

@@ -0,0 +1,25 @@
+package v5
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cybercongress/go-cyber/v5/app/keepers"
+)
+
+func RunForkLogic(ctx sdk.Context, keepers *keepers.AppKeepers) {
+	logger := ctx.Logger().With("upgrade", UpgradeName)
+
+	logger.Info("Applying emergency hard fork for v5")
+
+	liquidityParams := keepers.LiquidityKeeper.GetParams(ctx)
+	liquidityParams.CircuitBreakerEnabled = true
+	err := keepers.LiquidityKeeper.SetParams(ctx, liquidityParams)
+	if err != nil {
+		panic(err)
+	}
+	logger.Info("set liquidity circuit breaker enabled, disable dex")
+
+	keepers.BankKeeper.SetSendEnabled(ctx, "millivolt", false)
+	keepers.BankKeeper.SetSendEnabled(ctx, "milliampere", false)
+
+	logger.Info("set bank send disabled for millivolt and amperes")
+}

x/resources/keeper/keeper.go

@@ -335,11 +335,10 @@ func (k Keeper) CalculateInvestmint(ctx sdk.Context, amt sdk.Coin, resource stri
 	case ctypes.VOLT:
 		cycles := sdk.NewDec(int64(length)).QuoInt64(int64(params.BaseInvestmintPeriodVolt))
 		base := sdk.NewDec(amt.Amount.Int64()).QuoInt64(params.BaseInvestmintAmountVolt.Amount.Int64())
-
-		// TODO double check when third halving will be applied?
-		// NOTE out of parametrization custom code is applied here in order to shift the FIRST HALVING 6M BLOCKS LATER but keep base halving parameter same
+
+		// NOTE out of parametrization, custom code is applied here in order to shift the HALVINGS START 6M BLOCKS LATER but keep base halving parameter same
 		if ctx.BlockHeight() > 15000000 {
-			halving = sdk.NewDecWithPrec(int64(math.Pow(0.5, float64((ctx.BlockHeight()-600000)/int64(params.HalvingPeriodVoltBlocks)))*10000), 4)
+			halving = sdk.NewDecWithPrec(int64(math.Pow(0.5, float64((ctx.BlockHeight()-6000000)/int64(params.HalvingPeriodVoltBlocks)))*10000), 4)
 		} else {
 			halving = sdk.OneDec()
 		}