From 8023a4b2b4455262cc18585cca9f937f73ec7eed Mon Sep 17 00:00:00 2001
From: skosito <skostic9242@gmail.com>
Date: Fri, 8 Mar 2024 15:10:32 +0100
Subject: [PATCH] Remove duplicate ValidateChainParams function

---
 zetaclient/config/types.go               | 63 ------------------------
 zetaclient/zetabridge/zetacore_bridge.go |  2 +-
 2 files changed, 1 insertion(+), 64 deletions(-)

diff --git a/zetaclient/config/types.go b/zetaclient/config/types.go
index 200066f109..69e4e8da2c 100644
--- a/zetaclient/config/types.go
+++ b/zetaclient/config/types.go
@@ -2,13 +2,10 @@ package config
 
 import (
 	"encoding/json"
-	"fmt"
 	"strings"
 	"sync"
 
-	ethcommon "github.com/ethereum/go-ethereum/common"
 	"github.com/zeta-chain/zetacore/common"
-	observertypes "github.com/zeta-chain/zetacore/x/observer/types"
 )
 
 // KeyringBackend is the type of keyring backend to use for the hotkey
@@ -138,63 +135,3 @@ func (c *Config) GetKeyringBackend() KeyringBackend {
 	defer c.cfgLock.RUnlock()
 	return c.KeyringBackend
 }
-
-// TODO: remove this duplicated function https://github.com/zeta-chain/node/issues/1838
-// ValidateChainParams performs some basic checks on core params
-func ValidateChainParams(chainParams *observertypes.ChainParams) error {
-	if chainParams == nil {
-		return fmt.Errorf("invalid chain params: nil")
-	}
-	chain := common.GetChainFromChainID(chainParams.ChainId)
-	if chain == nil {
-		return fmt.Errorf("invalid chain params: chain %d not supported", chainParams.ChainId)
-	}
-	if chainParams.ConfirmationCount < 1 {
-		return fmt.Errorf("invalid chain params: ConfirmationCount %d", chainParams.ConfirmationCount)
-	}
-	// zeta chain skips the rest of the checks for now
-	if chain.IsZetaChain() {
-		return nil
-	}
-
-	// check tickers
-	if chainParams.GasPriceTicker < 1 {
-		return fmt.Errorf("invalid chain params: GasPriceTicker %d", chainParams.GasPriceTicker)
-	}
-	if chainParams.InTxTicker < 1 {
-		return fmt.Errorf("invalid chain params: InTxTicker %d", chainParams.InTxTicker)
-	}
-	if chainParams.OutTxTicker < 1 {
-		return fmt.Errorf("invalid chain params: OutTxTicker %d", chainParams.OutTxTicker)
-	}
-	if chainParams.OutboundTxScheduleInterval < 1 {
-		return fmt.Errorf("invalid chain params: OutboundTxScheduleInterval %d", chainParams.OutboundTxScheduleInterval)
-	}
-	if chainParams.OutboundTxScheduleLookahead < 1 {
-		return fmt.Errorf("invalid chain params: OutboundTxScheduleLookahead %d", chainParams.OutboundTxScheduleLookahead)
-	}
-
-	// chain type specific checks
-	if common.IsBitcoinChain(chainParams.ChainId) && chainParams.WatchUtxoTicker < 1 {
-		return fmt.Errorf("invalid chain params: watchUtxo ticker %d", chainParams.WatchUtxoTicker)
-	}
-	if common.IsEVMChain(chainParams.ChainId) {
-		if !validCoreContractAddress(chainParams.ZetaTokenContractAddress) {
-			return fmt.Errorf("invalid chain params: zeta token contract address %s", chainParams.ZetaTokenContractAddress)
-		}
-		if !validCoreContractAddress(chainParams.ConnectorContractAddress) {
-			return fmt.Errorf("invalid chain params: connector contract address %s", chainParams.ConnectorContractAddress)
-		}
-		if !validCoreContractAddress(chainParams.Erc20CustodyContractAddress) {
-			return fmt.Errorf("invalid chain params: erc20 custody contract address %s", chainParams.Erc20CustodyContractAddress)
-		}
-	}
-	return nil
-}
-
-func validCoreContractAddress(address string) bool {
-	if !strings.HasPrefix(address, "0x") {
-		return false
-	}
-	return ethcommon.IsHexAddress(address)
-}
diff --git a/zetaclient/zetabridge/zetacore_bridge.go b/zetaclient/zetabridge/zetacore_bridge.go
index 9e5a38ca11..58243136a2 100644
--- a/zetaclient/zetabridge/zetacore_bridge.go
+++ b/zetaclient/zetabridge/zetacore_bridge.go
@@ -218,7 +218,7 @@ func (b *ZetaCoreBridge) UpdateZetaCoreContext(coreContext *corecontext.ZetaCore
 
 	// check and update chain params for each chain
 	for _, chainParam := range chainParams {
-		err := config.ValidateChainParams(chainParam)
+		err := observertypes.ValidateChainParams(chainParam)
 		if err != nil {
 			b.logger.Warn().Err(err).Msgf("Invalid chain params for chain %d", chainParam.ChainId)
 			continue