Master (#1262)

* clear

* feat: Add everything

* fix: Commenht

app/config.go

@@ -0,0 +1,122 @@
+// Package app provides configuration utilities for the Sonr blockchain application.
+package app
+
+import (
+	"fmt"
+	"strings"
+
+	"cosmossdk.io/math"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	evmtypes "github.com/cosmos/evm/x/vm/types"
+)
+
+// EVMOptionsFn defines a function type for setting app options specifically for
+// the app. The function should receive the chainID and return an error if
+// any.
+type EVMOptionsFn func(string) error
+
+// NoOpEVMOptions is a no-op function that can be used when the app does not
+// need any specific configuration.
+func NoOpEVMOptions(_ string) error {
+	return nil
+}
+
+// sealed tracks whether the EVM configuration has been initialized.
+// Once sealed, the configuration cannot be changed.
+var sealed = false
+
+// ChainsCoinInfo is a map of the chain id and its corresponding EvmCoinInfo
+// that allows initializing the app with different coin info based on the
+// chain id
+var ChainsCoinInfo = map[string]evmtypes.EvmCoinInfo{
+	// Default local development chain
+	ChainID: {
+		Denom:        BaseDenom,
+		DisplayDenom: DisplayDenom,
+		Decimals:     evmtypes.EighteenDecimals,
+	},
+	// Starship testnet configuration
+	"sonrtestnet_1-1": {
+		Denom:        BaseDenom,
+		DisplayDenom: DisplayDenom,
+		Decimals:     evmtypes.EighteenDecimals,
+	},
+	"sonr-testnet-1": {
+		Denom:        BaseDenom,
+		DisplayDenom: DisplayDenom,
+		Decimals:     evmtypes.EighteenDecimals,
+	},
+	// Additional testnet configurations
+	"sonr_1-1": {
+		Denom:        BaseDenom,
+		DisplayDenom: DisplayDenom,
+		Decimals:     evmtypes.EighteenDecimals,
+	},
+}
+
+// EVMAppOptions sets up the global EVM configuration for the chain.
+// It configures the base denomination, chain config, and EVM coin info
+// based on the provided chain ID. The configuration is sealed after
+// first initialization to prevent modifications.
+func EVMAppOptions(chainID string) error {
+	if sealed {
+		return nil
+	}
+
+	if chainID == "" {
+		chainID = ChainID
+	}
+
+	// Try to find config by base chain ID (without suffix)
+	id := strings.Split(chainID, "-")[0]
+	coinInfo, found := ChainsCoinInfo[id]
+	if !found {
+		// Try full chain ID
+		coinInfo, found = ChainsCoinInfo[chainID]
+		if !found {
+			// Use a default configuration for unknown chains with warning
+			fmt.Printf("Warning: Unknown chain ID %s, using default usnr configuration\n", chainID)
+			coinInfo = evmtypes.EvmCoinInfo{
+				Denom:        BaseDenom,
+				DisplayDenom: DisplayDenom,
+				Decimals:     evmtypes.EighteenDecimals,
+			}
+		}
+	}
+
+	// set the denom info for the chain
+	if err := setBaseDenom(coinInfo); err != nil {
+		return err
+	}
+
+	baseDenom, err := sdk.GetBaseDenom()
+	if err != nil {
+		return err
+	}
+
+	ethCfg := evmtypes.DefaultChainConfig(chainID)
+
+	err = evmtypes.NewEVMConfigurator().
+		WithChainConfig(ethCfg).
+		WithEVMCoinInfo(baseDenom, uint8(coinInfo.Decimals)).
+		Configure()
+	if err != nil {
+		return err
+	}
+
+	sealed = true
+	return nil
+}
+
+// setBaseDenom registers the display denom and base denom and sets the
+// base denom for the chain. It ensures proper decimal conversion between
+// the base denomination and display denomination.
+func setBaseDenom(ci evmtypes.EvmCoinInfo) error {
+	if err := sdk.RegisterDenom(ci.DisplayDenom, math.LegacyOneDec()); err != nil {
+		return err
+	}
+
+	// sdk.RegisterDenom will automatically overwrite the base denom when the
+	// new setBaseDenom() are lower than the current base denom's units.
+	return sdk.RegisterDenom(ci.Denom, math.LegacyNewDecWithPrec(1, int64(ci.Decimals)))
+}