From fa7d2a14d2d869ea64e86c925c6fb5c4f1d756c0 Mon Sep 17 00:00:00 2001
From: Steven Landers <steven@seinetwork.io>
Date: Tue, 23 Jan 2024 16:26:54 -0500
Subject: [PATCH] [EVM] Add index to logs based on order (#1273)

* add index to logs based on order

* add check for getLogs

* add log conversion test
---
 contracts/src/EVMCompatibilityTester.sol |   7 ++
 contracts/test/EVMCompatabilityTester.js |  35 ++++++-
 proto/evm/receipt.proto                  |   1 +
 x/evm/keeper/log.go                      |   3 +-
 x/evm/keeper/log_test.go                 |  83 +++++++++++++++++
 x/evm/state/log.go                       |   1 +
 x/evm/types/receipt.pb.go                | 112 +++++++++++++++--------
 7 files changed, 199 insertions(+), 43 deletions(-)
 create mode 100644 x/evm/keeper/log_test.go

diff --git a/contracts/src/EVMCompatibilityTester.sol b/contracts/src/EVMCompatibilityTester.sol
index d0e5d77471..4b1e36309f 100644
--- a/contracts/src/EVMCompatibilityTester.sol
+++ b/contracts/src/EVMCompatibilityTester.sol
@@ -12,6 +12,7 @@ contract EVMCompatibilityTester {
     event AddressSet(address indexed performer);
     event Uint256Set(address indexed performer, uint256 value);
     event StringSet(address indexed performer, string value);
+    event LogIndexEvent(address indexed performer, uint256 value);
 
     struct MsgDetails {
         address sender;
@@ -62,6 +63,12 @@ contract EVMCompatibilityTester {
         emit BoolSet(msg.sender, value);
     }
 
+    function emitMultipleLogs(uint256 count) public {
+        for (uint256 i = 0; i < count; i++) {
+            emit LogIndexEvent(msg.sender, i);
+        }
+    }
+
     function setStringVar(string memory value) public {
         stringVar = value;
         emit StringSet(msg.sender, value);
diff --git a/contracts/test/EVMCompatabilityTester.js b/contracts/test/EVMCompatabilityTester.js
index 76b560f53a..5d581b7a8a 100644
--- a/contracts/test/EVMCompatabilityTester.js
+++ b/contracts/test/EVMCompatabilityTester.js
@@ -428,7 +428,7 @@ describe("EVM Test", function () {
         });
 
         describe("Differing maxPriorityFeePerGas and maxFeePerGas", async function() {
-          testCases.forEach(async ([name, maxPriorityFeePerGas, maxFeePerGas]) => {
+          for (const [name, maxPriorityFeePerGas, maxFeePerGas] of testCases) {
             it(`EIP-1559 test: ${name}`, async function() {
               console.log(`maxPriorityFeePerGas = ${maxPriorityFeePerGas}`)
               console.log(`maxFeePerGas = ${maxFeePerGas}`)
@@ -458,12 +458,12 @@ describe("EVM Test", function () {
               console.log(`tip = ${tip}`)
               const effectiveGasPrice = tip + gasPrice;
               console.log(`effectiveGasPrice = ${effectiveGasPrice}`)
-            
+
               const diff = balanceBefore - balanceAfter;
               console.log(`diff = ${diff}`)
               expect(diff).to.equal(21000 * effectiveGasPrice);
             });
-          });
+          }
         });
       });
     });
@@ -560,14 +560,41 @@ describe("EVM Test", function () {
         expect(nonce).to.be.a('number');
       });
 
+      it("Should set log index correctly", async function () {
+        const blockNumber = await ethers.provider.getBlockNumber();
+        const numberOfEvents = 5;
+
+        // check receipt
+        const txResponse = await evmTester.emitMultipleLogs(numberOfEvents);
+        const receipt = await txResponse.wait();
+        expect(receipt.logs.length).to.equal(numberOfEvents)
+        for(let i=0; i<receipt.logs.length; i++) {
+          expect(receipt.logs[i].index).to.equal(i);
+        }
+
+        // check logs
+        const filter = {
+          fromBlock: blockNumber,
+          toBlock: 'latest',
+          address: await evmTester.getAddress(),
+          topics: [ethers.id("LogIndexEvent(address,uint256)")]
+        };
+        const logs = await ethers.provider.getLogs(filter);
+        expect(logs.length).to.equal(numberOfEvents)
+        for(let i=0; i<logs.length; i++) {
+          expect(logs[i].index).to.equal(i);
+        }
+      })
+
       it("Should fetch logs for a specific event", async function () {
         // Emit an event by making a transaction
+        const blockNumber = await ethers.provider.getBlockNumber();
         const txResponse = await evmTester.setBoolVar(true);
         await txResponse.wait();
 
         // Create a filter to get logs
         const filter = {
-          fromBlock: 0,
+          fromBlock: blockNumber,
           toBlock: 'latest',
           address: await evmTester.getAddress(),
           topics: [ethers.id("BoolSet(address,bool)")]
diff --git a/proto/evm/receipt.proto b/proto/evm/receipt.proto
index 16c1af6a89..49751bb01e 100644
--- a/proto/evm/receipt.proto
+++ b/proto/evm/receipt.proto
@@ -9,6 +9,7 @@ message Log {
   string address = 1;
   repeated string topics = 2;
   bytes data = 3;
+  uint32 index = 4;
 }
 
 message Receipt {
diff --git a/x/evm/keeper/log.go b/x/evm/keeper/log.go
index 8a7d50c8d9..c7012780c8 100644
--- a/x/evm/keeper/log.go
+++ b/x/evm/keeper/log.go
@@ -47,7 +47,7 @@ func convertLog(l *types.Log, receipt *types.Receipt) *ethtypes.Log {
 		BlockNumber: receipt.BlockNumber,
 		TxHash:      common.HexToHash(receipt.TxHashHex),
 		TxIndex:     uint(receipt.TransactionIndex),
-	}
+		Index:       uint(l.Index)}
 }
 
 func ConvertEthLog(l *ethtypes.Log) *types.Log {
@@ -55,5 +55,6 @@ func ConvertEthLog(l *ethtypes.Log) *types.Log {
 		Address: l.Address.Hex(),
 		Topics:  utils.Map(l.Topics, func(h common.Hash) string { return h.Hex() }),
 		Data:    l.Data,
+		Index:   uint32(l.Index),
 	}
 }
diff --git a/x/evm/keeper/log_test.go b/x/evm/keeper/log_test.go
new file mode 100644
index 0000000000..8f3644d00d
--- /dev/null
+++ b/x/evm/keeper/log_test.go
@@ -0,0 +1,83 @@
+package keeper
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/stretchr/testify/require"
+
+	evmtypes "github.com/sei-protocol/sei-chain/x/evm/types"
+)
+
+func TestConvertEthLog(t *testing.T) {
+	// Create a sample ethtypes.Log object
+	ethLog := &types.Log{
+		Address: common.HexToAddress("0x123"),
+		Topics: []common.Hash{
+			common.HexToHash("0x456"),
+			common.HexToHash("0x789"),
+		},
+		Data:        []byte("data"),
+		BlockNumber: 1,
+		TxHash:      common.HexToHash("0xabc"),
+		TxIndex:     2,
+		Index:       3,
+	}
+
+	// Convert the ethtypes.Log to a types.Log
+	log := ConvertEthLog(ethLog)
+
+	// Check that the fields match
+	require.Equal(t, ethLog.Address.Hex(), log.Address)
+	require.Equal(t, len(ethLog.Topics), len(log.Topics))
+	for i, topic := range ethLog.Topics {
+		require.Equal(t, topic.Hex(), log.Topics[i])
+	}
+	require.Equal(t, ethLog.Data, log.Data)
+	require.Equal(t, uint32(ethLog.Index), log.Index)
+}
+
+func TestGetLogsForTx(t *testing.T) {
+	// Create a sample types.Receipt object with a list of types.Log objects
+	receipt := &evmtypes.Receipt{
+		Logs: []*evmtypes.Log{
+			{
+				Address: common.HexToAddress("0x123").Hex(),
+				Topics: []string{
+					"0x0000000000000000000000000000000000000000000000000000000000000456",
+					"0x0000000000000000000000000000000000000000000000000000000000000789",
+				},
+				Data:  []byte("data"),
+				Index: 3,
+			},
+			{
+				Address: common.HexToAddress("0x123").Hex(),
+				Topics: []string{
+					"0x0000000000000000000000000000000000000000000000000000000000000def",
+					"0x0000000000000000000000000000000000000000000000000000000000000123",
+				},
+				Data:  []byte("data2"),
+				Index: 4,
+			},
+		},
+		BlockNumber:      1,
+		TransactionIndex: 2,
+		TxHashHex:        "0xabc",
+	}
+
+	// Convert the types.Receipt to a list of ethtypes.Log objects
+	logs := GetLogsForTx(receipt)
+
+	// Check that the fields match
+	require.Equal(t, len(receipt.Logs), len(logs))
+	for i, log := range logs {
+		require.Equal(t, receipt.Logs[i].Address, log.Address.Hex())
+		require.Equal(t, len(receipt.Logs[i].Topics), len(log.Topics))
+		for j, topic := range log.Topics {
+			require.Equal(t, receipt.Logs[i].Topics[j], topic.Hex())
+		}
+		require.Equal(t, receipt.Logs[i].Data, log.Data)
+		require.Equal(t, uint(receipt.Logs[i].Index), log.Index)
+	}
+}
diff --git a/x/evm/state/log.go b/x/evm/state/log.go
index 1a629ac824..8462e1d682 100644
--- a/x/evm/state/log.go
+++ b/x/evm/state/log.go
@@ -10,6 +10,7 @@ type Logs struct {
 }
 
 func (s *DBImpl) AddLog(l *ethtypes.Log) {
+	l.Index = uint(len(s.logs))
 	s.logs = append(s.logs, l)
 }
 
diff --git a/x/evm/types/receipt.pb.go b/x/evm/types/receipt.pb.go
index 3359d684b6..1cbb846e8e 100644
--- a/x/evm/types/receipt.pb.go
+++ b/x/evm/types/receipt.pb.go
@@ -27,6 +27,7 @@ type Log struct {
 	Address string   `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
 	Topics  []string `protobuf:"bytes,2,rep,name=topics,proto3" json:"topics,omitempty"`
 	Data    []byte   `protobuf:"bytes,3,opt,name=data,proto3" json:"data,omitempty"`
+	Index   uint32   `protobuf:"varint,4,opt,name=index,proto3" json:"index,omitempty"`
 }
 
 func (m *Log) Reset()         { *m = Log{} }
@@ -83,6 +84,13 @@ func (m *Log) GetData() []byte {
 	return nil
 }
 
+func (m *Log) GetIndex() uint32 {
+	if m != nil {
+		return m.Index
+	}
+	return 0
+}
+
 type Receipt struct {
 	TxType            uint32 `protobuf:"varint,1,opt,name=tx_type,json=txType,proto3" json:"tx_type,omitempty" yaml:"tx_type"`
 	CumulativeGasUsed uint64 `protobuf:"varint,2,opt,name=cumulative_gas_used,json=cumulativeGasUsed,proto3" json:"cumulative_gas_used,omitempty" yaml:"cumulative_gas_used"`
@@ -239,45 +247,46 @@ func init() {
 func init() { proto.RegisterFile("evm/receipt.proto", fileDescriptor_d864f6bdca684f52) }
 
 var fileDescriptor_d864f6bdca684f52 = []byte{
-	// 600 bytes of a gzipped FileDescriptorProto
+	// 610 bytes of a gzipped FileDescriptorProto
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+	0x03, 0xdb, 0xf3, 0x40, 0xb0, 0xef, 0x6e, 0x94, 0x86, 0x73, 0x9e, 0xa0, 0x9e, 0x7e, 0xe8, 0xb0,
+	0xc8, 0xed, 0x51, 0xf5, 0xd0, 0x53, 0x16, 0x93, 0xbe, 0x4e, 0xaf, 0x75, 0x06, 0x2f, 0xc1, 0x50,
+	0x25, 0x34, 0x92, 0x94, 0x29, 0x5f, 0x44, 0x6e, 0xf5, 0x9b, 0xb7, 0xf4, 0x2f, 0x3c, 0x2e, 0x72,
+	0x1b, 0xd5, 0xce, 0x9f, 0x4b, 0x30, 0xd9, 0x7b, 0x82, 0x5d, 0x96, 0x10, 0x7c, 0x05, 0xba, 0x52,
+	0x51, 0x95, 0x4a, 0x64, 0xea, 0xfa, 0x61, 0x91, 0xdb, 0x83, 0xaa, 0xbe, 0xc2, 0x31, 0xa9, 0x05,
+	0xf0, 0x7f, 0xd0, 0xb9, 0x49, 0x44, 0x88, 0x80, 0x5e, 0xf1, 0x6e, 0x91, 0xdb, 0xfd, 0x4a, 0x58,
+	0xa2, 0x98, 0x68, 0x12, 0x9e, 0x80, 0x96, 0x12, 0xa8, 0xaf, 0x25, 0x83, 0x22, 0xb7, 0xcd, 0x7a,
+	0x16, 0x81, 0x49, 0x4b, 0x89, 0x72, 0xeb, 0xab, 0xd0, 0xe5, 0x49, 0x22, 0x12, 0xb4, 0xad, 0x45,
+	0x4f, 0xb6, 0xde, 0x30, 0x98, 0xf4, 0x56, 0xe1, 0xc7, 0x32, 0x82, 0x6f, 0x40, 0x27, 0x10, 0x9e,
+	0x44, 0x83, 0x71, 0x7b, 0xd2, 0x7f, 0x7b, 0xe2, 0xfc, 0xeb, 0xa0, 0x9c, 0x2b, 0xe1, 0x11, 0x2d,
+	0x85, 0xc7, 0xc0, 0x2c, 0xbf, 0xb3, 0x40, 0x88, 0x10, 0xed, 0xe8, 0x83, 0x78, 0x04, 0x66, 0xe7,
+	0x3f, 0xef, 0x2d, 0xe3, 0xee, 0xde, 0x32, 0x7e, 0xdf, 0x5b, 0xc6, 0x8f, 0x07, 0x6b, 0xe3, 0xee,
+	0xc1, 0xda, 0xf8, 0xf5, 0x60, 0x6d, 0x7c, 0x3b, 0xf5, 0x7c, 0xb5, 0x4c, 0xe7, 0x0e, 0x13, 0xe1,
+	0x54, 0x72, 0xff, 0xb4, 0xe9, 0xa3, 0x13, 0xdd, 0x68, 0x9a, 0x4d, 0xcb, 0x1b, 0x2f, 0xef, 0x42,
+	0xce, 0xbb, 0x9a, 0x7f, 0xf7, 0x37, 0x00, 0x00, 0xff, 0xff, 0x24, 0x16, 0xa8, 0xf6, 0xf7, 0x03,
+	0x00, 0x00,
 }
 
 func (m *Log) Marshal() (dAtA []byte, err error) {
@@ -300,6 +309,11 @@ func (m *Log) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
+	if m.Index != 0 {
+		i = encodeVarintReceipt(dAtA, i, uint64(m.Index))
+		i--
+		dAtA[i] = 0x20
+	}
 	if len(m.Data) > 0 {
 		i -= len(m.Data)
 		copy(dAtA[i:], m.Data)
@@ -471,6 +485,9 @@ func (m *Log) Size() (n int) {
 	if l > 0 {
 		n += 1 + l + sovReceipt(uint64(l))
 	}
+	if m.Index != 0 {
+		n += 1 + sovReceipt(uint64(m.Index))
+	}
 	return n
 }
 
@@ -667,6 +684,25 @@ func (m *Log) Unmarshal(dAtA []byte) error {
 				m.Data = []byte{}
 			}
 			iNdEx = postIndex
+		case 4:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Index", wireType)
+			}
+			m.Index = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowReceipt
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.Index |= uint32(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
 		default:
 			iNdEx = preIndex
 			skippy, err := skipReceipt(dAtA[iNdEx:])