Update dlmm fee

cmd/rpc_parse/main.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/gagliardetto/solana-go"
+	"github.com/gagliardetto/solana-go/rpc"
+	pump_parser "github.com/thloyi/pump-parser"
+)
+
+func main() {
+	const rpcURL = "https://staked.helius-rpc.com?api-key=5adcf1f9-5719-43d1-bf3f-c2d4e1e5f94d"
+	txHash := os.Getenv("TX_HASH")
+	if txHash == "" {
+		txHash = "2AhpL5KhVmG3D38CwMzrHuRyTucEQ43GzBXL2mo5WiugdZMVmK1dtX8brGe3sxvvFDY6iSSviJTvqCtr4UL3Pc7J"
+	}
+
+	if txHash == "" {
+		fmt.Fprintln(os.Stderr, "txHash is empty; set it in cmd/rpc_parse/main.go")
+		os.Exit(1)
+	}
+
+	sig, err := solana.SignatureFromBase58(txHash)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "invalid txHash: %v\n", err)
+		os.Exit(1)
+	}
+
+	client := rpc.New(rpcURL)
+	maxSupportedVersion := uint64(0)
+	out, err := client.GetTransaction(context.Background(), sig, &rpc.GetTransactionOpts{
+		Encoding:                       solana.EncodingBase64,
+		Commitment:                     rpc.CommitmentConfirmed,
+		MaxSupportedTransactionVersion: &maxSupportedVersion,
+	})
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "rpc getTransaction error: %v\n", err)
+		os.Exit(1)
+	}
+	if out == nil || out.Transaction == nil || out.Meta == nil {
+		fmt.Fprintln(os.Stderr, "rpc getTransaction returned empty response")
+		os.Exit(1)
+	}
+
+	rawBinary := out.Transaction.GetBinary()
+	if len(rawBinary) == 0 {
+		fmt.Fprintln(os.Stderr, "rpc getTransaction returned empty transaction data")
+		os.Exit(1)
+	}
+
+	txWithMeta := rpc.TransactionWithMeta{
+		Slot:        out.Slot,
+		BlockTime:   out.BlockTime,
+		Transaction: rpc.DataBytesOrJSONFromBytes(rawBinary),
+		Meta:        out.Meta,
+		Version:     out.Version,
+	}
+
+	var blockTime *uint64
+	if out.BlockTime != nil {
+		bt := uint64(*out.BlockTime)
+		blockTime = &bt
+	}
+
+	rawTx, err := pump_parser.FromRpcTransactionWithMeta(txWithMeta, blockTime, out.Slot, 0)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "convert rpc transaction error: %v\n", err)
+		os.Exit(1)
+	}
+
+	pump_parser.EnableAllParsers()
+
+	parsed, err := pump_parser.ParseRawTx(rawTx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "parse raw tx error: %v\n", err)
+		os.Exit(1)
+	}
+	if len(parsed.Swaps) == 0 {
+		fmt.Println("no swaps parsed from tx")
+		return
+	}
+
+	for i, swap := range parsed.Swaps {
+		fmt.Printf("swap[%d]\n", i)
+		fmt.Printf("  program: %s\n", swap.Program)
+		fmt.Printf("  event: %s\n", swap.Event)
+		fmt.Printf("  pool: %s\n", swap.Pool)
+		fmt.Printf("  user: %s\n", swap.User)
+		fmt.Printf("  base_mint: %s (decimals=%d)\n", swap.BaseMint, swap.BaseMintDecimals)
+		fmt.Printf("  quote_mint: %s (decimals=%d)\n", swap.QuoteMint, swap.QuoteMintDecimals)
+		fmt.Printf("  base_amount: %s\n", swap.BaseAmount.String())
+		fmt.Printf("  quote_amount: %s\n", swap.QuoteAmount.String())
+		if !swap.FeeAmount.IsZero() || swap.FeeSide != "" {
+			fmt.Printf("  fee_amount: %s\n", swap.FeeAmount.String())
+			fmt.Printf("  lp_fee_amount: %s\n", swap.LpFeeAmount.String())
+			fmt.Printf("  fee_side: %s\n", swap.FeeSide)
+			fmt.Printf("  fee_mint: %s (decimals=%d)\n", swap.FeeMint, swap.FeeMintDecimals)
+			fmt.Printf("  fee_token_program: %s\n", swap.FeeTokenProgram)
+		}
+		fmt.Printf("  base_reserve: %s\n", swap.BaseReserve.String())
+		fmt.Printf("  quote_reserve: %s\n", swap.QuoteReserve.String())
+		fmt.Printf("  base_token_program: %s\n", swap.BaseTokenProgram)
+		fmt.Printf("  quote_token_program: %s\n", swap.QuoteTokenProgram)
+		fmt.Printf("  entry_contract: %s\n", swap.EntryContract)
+		fmt.Printf("  user_base_balance: %s\n", swap.UserBaseBalance.String())
+		fmt.Printf("  user_quote_balance: %s\n", swap.UserQuoteBalance.String())
+		fmt.Printf("  active_bin_id: %d\n", swap.ActiveBinId)
+		fmt.Printf("  start_bin_id: %d\n", swap.StartBinId)
+		fmt.Printf("  end_bin_id: %d\n", swap.EndBinId)
+		fmt.Printf("  remove_bp: %d\n", swap.RemoveBp)
+		fmt.Printf("  position_account: %s\n", swap.PositionAccount)
+		if swap.Mayhem {
+			fmt.Printf("  mayhem: true\n")
+		} else {
+			fmt.Printf("  mayhem: false\n")
+		}
+		fmt.Println()
+	}
+}

meta.go

@@ -68,7 +68,11 @@ var (
 )
 
 var (
-	meteoraInitializeLbPairDiscriminator                  = calculateDiscriminator("global:initialize_lb_pair2")
+	meteoraInitializeCustomizablePermissionlessLbPairDiscriminator  = calculateDiscriminator("global:initialize_customizable_permissionless_lb_pair")
+	meteoraInitializeCustomizablePermissionlessLbPair2Discriminator = calculateDiscriminator("global:initialize_customizable_permissionless_lb_pair2")
+	meteoraInitializeLbPairDiscriminator                            = calculateDiscriminator("global:initialize_lb_pair")
+	meteoraInitializeLbPair2Discriminator                           = calculateDiscriminator("global:initialize_lb_pair2")
+	meteoraInitializePermissionLbPairDiscriminator                  = calculateDiscriminator("global:initialize_permission_lb_pair")
 	meteoraInitializeLbPairEventDiscriminator                       = calculateDiscriminator("event:LbPairCreate")
 	meteoraDlmmSwapDiscriminator                                    = calculateDiscriminator("global:swap")
 	meteoraDlmmSwap2Discriminator                                   = calculateDiscriminator("global:swap2")

metaoradlmm.go

@@ -66,6 +66,13 @@ type dlmmPositionCloseEvent struct {
 	Owner    solana.PublicKey
 }
 
+type dlmmLbPairCreateEvent struct {
+	LbPair  solana.PublicKey
+	BinStep uint16
+	TokenX  solana.PublicKey
+	TokenY  solana.PublicKey
+}
+
 type dlmmClaimFeeInnerEvent struct {
 	LbPair       solana.PublicKey
 	Position     solana.PublicKey
@@ -340,7 +347,11 @@ func metaoradlmmParser(tx *Tx, instruction Instruction, innerInstructions InnerI
 
 	discriminator := *(*[8]byte)(decode[:8])
 	switch discriminator {
-	case meteoraInitializeLbPairDiscriminator:
+	case meteoraInitializeCustomizablePermissionlessLbPairDiscriminator,
+		meteoraInitializeCustomizablePermissionlessLbPair2Discriminator,
+		meteoraInitializeLbPairDiscriminator,
+		meteoraInitializeLbPair2Discriminator,
+		meteoraInitializePermissionLbPairDiscriminator:
 		return metaoradlmmInitializeParser(tx, instruction, innerInstructions, offset)
 	case meteoraDlmmInitializePositionDiscriminator, meteoraDlmmInitializePosition2Discriminator,
 		meteoraDlmmInitializePositionByOperatorDiscriminator, meteoraDlmmInitializePositionPdaDiscriminator:
@@ -369,53 +380,131 @@ func metaoradlmmParser(tx *Tx, instruction Instruction, innerInstructions InnerI
 	}
 }
 
+type dlmmInitializeAccounts struct {
+	pool              solana.PublicKey
+	token0            solana.PublicKey
+	token1            solana.PublicKey
+	baseTokenProgram  solana.PublicKey
+	quoteTokenProgram solana.PublicKey
+	user              solana.PublicKey
+}
+
+func resolveDlmmInitializeAccounts(result *RawTx, data []byte, accounts []int) (dlmmInitializeAccounts, error) {
+	if len(data) < 8 {
+		return dlmmInitializeAccounts{}, fmt.Errorf("instruction data too short")
+	}
+
+	accountList := result.getAccountList()
+	resolveAt := func(position int) (solana.PublicKey, error) {
+		if position < 0 || position >= len(accounts) {
+			return solana.PublicKey{}, fmt.Errorf("accounts too short, missing position %d", position)
+		}
+		accountIndex := accounts[position]
+		if accountIndex < 0 || accountIndex >= len(accountList) {
+			return solana.PublicKey{}, fmt.Errorf("account index out of range at position %d", position)
+		}
+		return accountList[accountIndex], nil
+	}
+
+	resolveCommon := func(poolPos, token0Pos, token1Pos, userPos, baseTokenProgramPos, quoteTokenProgramPos int) (dlmmInitializeAccounts, error) {
+		pool, err := resolveAt(poolPos)
+		if err != nil {
+			return dlmmInitializeAccounts{}, err
+		}
+		token0, err := resolveAt(token0Pos)
+		if err != nil {
+			return dlmmInitializeAccounts{}, err
+		}
+		token1, err := resolveAt(token1Pos)
+		if err != nil {
+			return dlmmInitializeAccounts{}, err
+		}
+		baseTokenProgram, err := resolveAt(baseTokenProgramPos)
+		if err != nil {
+			return dlmmInitializeAccounts{}, err
+		}
+		quoteTokenProgram, err := resolveAt(quoteTokenProgramPos)
+		if err != nil {
+			return dlmmInitializeAccounts{}, err
+		}
+		user, err := resolveAt(userPos)
+		if err != nil {
+			return dlmmInitializeAccounts{}, err
+		}
+
+		return dlmmInitializeAccounts{
+			pool:              pool,
+			token0:            token0,
+			token1:            token1,
+			baseTokenProgram:  baseTokenProgram,
+			quoteTokenProgram: quoteTokenProgram,
+			user:              user,
+		}, nil
+	}
+
+	discriminator := *(*[8]byte)(data[:8])
+	switch discriminator {
+	case meteoraInitializeLbPairDiscriminator,
+		meteoraInitializeCustomizablePermissionlessLbPairDiscriminator:
+		return resolveCommon(0, 2, 3, 8, 9, 9)
+	case meteoraInitializeLbPair2Discriminator,
+		meteoraInitializeCustomizablePermissionlessLbPair2Discriminator:
+		return resolveCommon(0, 2, 3, 8, 11, 12)
+	case meteoraInitializePermissionLbPairDiscriminator:
+		return resolveCommon(1, 3, 4, 8, 11, 12)
+	default:
+		return dlmmInitializeAccounts{}, fmt.Errorf("unsupported initialize discriminator")
+	}
+}
+
 func metaoradlmmInitializeParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
-	market := tx.rawTx.accountList[instruction.Accounts[0]]
+	accounts, err := resolveDlmmInitializeAccounts(tx.rawTx, instruction.Data, instruction.Accounts)
-	token0 := tx.rawTx.accountList[instruction.Accounts[2]]
+	if err != nil {
-	token1 := tx.rawTx.accountList[instruction.Accounts[3]]
+		return nil, increaseOffset(offset), fmt.Errorf("meteora dlmm initialize accounts parse error: %v, offset, %d, %d", err, offset[0], offset[1])
+	}
 
 	entryContract := tx.rawTx.accountList[tx.rawTx.Transaction.Message.Instructions[offset[0]].ProgramIDIndex]
 
-	var baseDecimals uint8
+	findMintDecimals := func(mint solana.PublicKey) uint8 {
-	var quoteDecimals uint8
 		for _, acc := range tx.rawTx.Meta.PostTokenBalances {
-		if acc.MintAccount.Equals(token0) {
+			if acc.MintAccount.Equals(mint) {
-			baseDecimals = uint8(acc.UITokenAmount.Decimals)
+				return uint8(acc.UITokenAmount.Decimals)
-		}
-		if acc.MintAccount.Equals(token1) {
-			quoteDecimals = uint8(acc.UITokenAmount.Decimals)
 			}
 		}
+		return 0
+	}
+
 	swap := Swap{
 		Program:           SolProgramMeteoraDLMM,
 		Event:             "create",
-		Pool:              market,
+		Pool:              accounts.pool,
-		BaseMint:          token0,
+		BaseMint:          accounts.token0,
-		QuoteMint:         token1,
+		QuoteMint:         accounts.token1,
-		BaseTokenProgram:  tx.rawTx.accountList[instruction.Accounts[11]],
+		BaseTokenProgram:  accounts.baseTokenProgram,
-		QuoteTokenProgram: tx.rawTx.accountList[instruction.Accounts[12]],
+		QuoteTokenProgram: accounts.quoteTokenProgram,
 		Creator:           tx.rawTx.accountList[0],
-		BaseMintDecimals:  baseDecimals,
+		BaseMintDecimals:  findMintDecimals(accounts.token0),
-		QuoteMintDecimals: quoteDecimals,
+		QuoteMintDecimals: findMintDecimals(accounts.token1),
-		User:              tx.rawTx.accountList[instruction.Accounts[8]],
+		User:              accounts.user,
 		EntryContract:     entryContract,
 	}
-	var prefixLen = offset[1]
+	createEvent, nextOffset, found, err := dlmmLbPairCreateEventFromInnerInstructions(innerInstructions, instruction, offset)
-	inners, err := getInnerInstructions(innerInstructions, prefixLen)
 	if err != nil {
-		return nil, increaseOffset(offset), fmt.Errorf("pump create get inner instructions error: %v, offset, %d, %d", err, offset[0], offset[1])
+		return nil, nextOffset, err
 	}
-	var programIndex = instruction.ProgramIDIndex
+	if found {
-
+		offset = nextOffset
-	for innerIndex, innerInstr := range inners {
+		if !createEvent.LbPair.IsZero() {
-		if innerInstr.ProgramIDIndex == programIndex && len(innerInstr.Data) >= 16 && bytes.Equal(innerInstr.Data[:8], pumpEventDiscriminator[:]) && bytes.Equal(innerInstr.Data[8:16], meteoraInitializeLbPairEventDiscriminator[:]) {
+			swap.Pool = createEvent.LbPair
-			if offset[1] == 0 {
-				offset[0] += 1
-			} else {
-				offset[1] = uint(innerIndex) + 1 + prefixLen
 		}
-			break
+		if !createEvent.TokenX.IsZero() {
+			swap.BaseMint = createEvent.TokenX
 		}
+		if !createEvent.TokenY.IsZero() {
+			swap.QuoteMint = createEvent.TokenY
+		}
+		swap.BaseMintDecimals = findMintDecimals(swap.BaseMint)
+		swap.QuoteMintDecimals = findMintDecimals(swap.QuoteMint)
 	}
 	return []Swap{swap}, offset, nil
 }
@@ -729,6 +818,18 @@ func metaoradlmmSwapParser(tx *Tx, instruction Instruction, innerInstructions In
 			userQuote = userQuote.Add(decimal.NewFromUint64(solAmount))
 		}
 	}
+	feeAmount, feeSide, feeMint, feeTokenProgram, feeDecimals := dlmmSwapFeeInfo(
+		baseIsX,
+		swapForY,
+		swapEvent.Fee,
+		baseMint,
+		quoteMint,
+		baseTokenProgram,
+		quoteTokenProgram,
+		baseDecimals,
+		quoteDecimals,
+	)
+	lpFeeAmount := dlmmSwapLpFeeAmount(swapEvent.Fee, swapEvent.ProtocolFee, swapEvent.HostFee)
 
 	swap := Swap{
 		Program:           SolProgramMeteoraDLMM,
@@ -744,6 +845,12 @@ func metaoradlmmSwapParser(tx *Tx, instruction Instruction, innerInstructions In
 		User:              eventUser,
 		BaseAmount:        baseAmount,
 		QuoteAmount:       quoteAmount,
+		FeeAmount:         feeAmount,
+		LpFeeAmount:       lpFeeAmount,
+		FeeSide:           feeSide,
+		FeeMint:           feeMint,
+		FeeTokenProgram:   feeTokenProgram,
+		FeeMintDecimals:   feeDecimals,
 		BaseReserve:       baseReserve,
 		QuoteReserve:      quoteReserve,
 		UserBaseBalance:   userBase,
@@ -761,6 +868,35 @@ func metaoradlmmSwap2Parser(tx *Tx, instruction Instruction, innerInstructions I
 	return metaoradlmmSwapParser(tx, instruction, innerInstructions, offset)
 }
 
+func dlmmSwapFeeInfo(
+	baseIsX bool,
+	swapForY bool,
+	fee uint64,
+	baseMint solana.PublicKey,
+	quoteMint solana.PublicKey,
+	baseTokenProgram solana.PublicKey,
+	quoteTokenProgram solana.PublicKey,
+	baseDecimals uint8,
+	quoteDecimals uint8,
+) (decimal.Decimal, string, solana.PublicKey, solana.PublicKey, uint8) {
+	feeAmount := decimal.NewFromUint64(fee)
+	if baseIsX == swapForY {
+		return feeAmount, "base", baseMint, baseTokenProgram, baseDecimals
+	}
+	return feeAmount, "quote", quoteMint, quoteTokenProgram, quoteDecimals
+}
+
+func dlmmSwapLpFeeAmount(fee, protocolFee, hostFee uint64) decimal.Decimal {
+	total := decimal.NewFromUint64(fee)
+	protocol := decimal.NewFromUint64(protocolFee)
+	host := decimal.NewFromUint64(hostFee)
+	lpFee := total.Sub(protocol).Sub(host)
+	if lpFee.IsNegative() {
+		return decimal.Zero
+	}
+	return lpFee
+}
+
 func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstructions InnerInstructions, offset [2]uint) ([]Swap, [2]uint, error) {
 	result := tx.rawTx
 
@@ -788,7 +924,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		weightDist []dlmmBinLiquidityDistributionByWeight
 		startBinId int32
 		endBinId   int32
-		hasRange   bool
 		oneSide    bool
 	)
 
@@ -802,7 +937,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		amountY = args.LiquidityParameter.AmountY
 		binDist = args.LiquidityParameter.BinLiquidityDist
 		startBinId, endBinId = dlmmMinMaxBinIdFromDistribution(binDist)
-		hasRange = len(binDist) > 0
 	case meteoraDlmmAddLiquidity2Discriminator:
 		var args dlmmAddLiquidity2Args
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
@@ -812,7 +946,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		amountY = args.LiquidityParameter.AmountY
 		binDist = args.LiquidityParameter.BinLiquidityDist
 		startBinId, endBinId = dlmmMinMaxBinIdFromDistribution(binDist)
-		hasRange = len(binDist) > 0
 	case meteoraDlmmAddLiquidityByStrategyDiscriminator:
 		var args dlmmAddLiquidityByStrategyArgs
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
@@ -822,7 +955,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		amountY = args.LiquidityParameter.AmountY
 		startBinId = args.LiquidityParameter.StrategyParameters.MinBinId
 		endBinId = args.LiquidityParameter.StrategyParameters.MaxBinId
-		hasRange = true
 	case meteoraDlmmAddLiquidityByStrategy2Discriminator:
 		var args dlmmAddLiquidityByStrategy2Args
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
@@ -832,7 +964,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		amountY = args.LiquidityParameter.AmountY
 		startBinId = args.LiquidityParameter.StrategyParameters.MinBinId
 		endBinId = args.LiquidityParameter.StrategyParameters.MaxBinId
-		hasRange = true
 	case meteoraDlmmAddLiquidityByWeightDiscriminator:
 		var args dlmmAddLiquidityByWeightArgs
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
@@ -842,7 +973,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		amountY = args.LiquidityParameter.AmountY
 		weightDist = args.LiquidityParameter.BinLiquidityDist
 		startBinId, endBinId = dlmmMinMaxBinIdFromWeightDistribution(weightDist)
-		hasRange = len(weightDist) > 0
 	case meteoraDlmmAddLiquidityOneSideDiscriminator:
 		var args dlmmAddLiquidityOneSideArgs
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
@@ -850,7 +980,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		}
 		weightDist = args.LiquidityParameter.BinLiquidityDist
 		startBinId, endBinId = dlmmMinMaxBinIdFromWeightDistribution(weightDist)
-		hasRange = len(weightDist) > 0
 		oneSide = true
 	case meteoraDlmmAddLiquidityOneSidePreciseDiscriminator:
 		var args dlmmAddLiquidityOneSidePreciseArgs
@@ -858,7 +987,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 			return nil, increaseOffset(offset), fmt.Errorf("meteora dlmm add liquidity one side precise decode error: %v, offset, %d, %d", err, offset[0], offset[1])
 		}
 		startBinId, endBinId = dlmmMinMaxBinIDFromCompressedDeposits(args.Parameter.Bins)
-		hasRange = len(args.Parameter.Bins) > 0
 		oneSide = true
 	case meteoraDlmmAddLiquidityOneSidePrecise2Discriminator:
 		var args dlmmAddLiquidityOneSidePrecise2Args
@@ -866,7 +994,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 			return nil, increaseOffset(offset), fmt.Errorf("meteora dlmm add liquidity one side precise2 decode error: %v, offset, %d, %d", err, offset[0], offset[1])
 		}
 		startBinId, endBinId = dlmmMinMaxBinIDFromCompressedDeposits(args.LiquidityParameter.Bins)
-		hasRange = len(args.LiquidityParameter.Bins) > 0
 		oneSide = true
 	case meteoraDlmmAddLiquidityByStrategyOneSideDiscriminator:
 		var args dlmmAddLiquidityByStrategyOneSideArgs
@@ -875,7 +1002,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		}
 		startBinId = args.LiquidityParameter.StrategyParameters.MinBinId
 		endBinId = args.LiquidityParameter.StrategyParameters.MaxBinId
-		hasRange = true
 		oneSide = true
 	default:
 		return nil, increaseOffset(offset), InstructionIgnoredError
@@ -890,7 +1016,7 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 	amountY = addEvent.Amounts[1]
 
 	if oneSide {
-		swaps, err := dlmmBuildOneSideAddSwap(tx, instruction, addEvent, weightDist, startBinId, endBinId, hasRange, entryContract)
+		swaps, err := dlmmBuildOneSideAddSwap(tx, instruction, addEvent, startBinId, endBinId, entryContract)
 		if err != nil {
 			return nil, offset, err
 		}
@@ -902,16 +1028,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		return nil, increaseOffset(offset), fmt.Errorf("meteora dlmm add liquidity accounts parse error: %v, offset, %d, %d", err, offset[0], offset[1])
 	}
 
-	binChanges := []DlmmBinLiquidityChange(nil)
-	if len(binDist) > 0 {
-		binChanges = dlmmBinChangesFromDistribution(amountX, amountY, binDist)
-	} else if len(weightDist) > 0 {
-		// Weight-only params do not preserve per-side amounts for each bin, so keep the affected range only.
-		binChanges = dlmmBinChangesFromRange(startBinId, endBinId, 0)
-	} else if hasRange {
-		binChanges = dlmmBinChangesFromRange(startBinId, endBinId, 0)
-	}
-
 	pool := result.accountList[accounts.poolIdx]
 	tokenXMint := result.accountList[accounts.tokenXMintIdx]
 	tokenYMint := result.accountList[accounts.tokenYMintIdx]
@@ -942,7 +1058,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		baseAmount = amountYDec
 		quoteAmount = amountXDec
 	}
-
 	eventUser := result.accountList[accounts.userIdx]
 	if !addEvent.From.IsZero() {
 		eventUser = addEvent.From
@@ -1003,7 +1118,6 @@ func metaoradlmmAddLiquidityParser(tx *Tx, instruction Instruction, innerInstruc
 		ActiveBinId:       addEvent.ActiveBinId,
 		StartBinId:        startBinId,
 		EndBinId:          endBinId,
-		BinChanges:        binChanges,
 		PositionAccount:   result.accountList[accounts.positionIdx],
 	}
 
@@ -1031,7 +1145,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 
 	discriminator := *(*[8]byte)(decode[:8])
 	var (
-		binChanges []DlmmBinLiquidityChange
 		startBinId int32
 		endBinId   int32
 		removeBp   int32
@@ -1045,7 +1158,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
 			return nil, increaseOffset(offset), fmt.Errorf("meteora dlmm remove liquidity decode error: %v, offset, %d, %d", err, offset[0], offset[1])
 		}
-		binChanges = dlmmBinChangesFromReduction(args.BinLiquidityRemoval)
 		startBinId, endBinId = dlmmMinMaxBinIdFromReduction(args.BinLiquidityRemoval)
 		removeBp = dlmmCommonRemoveBp(args.BinLiquidityRemoval)
 	case meteoraDlmmRemoveLiquidity2Discriminator:
@@ -1053,7 +1165,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
 			return nil, increaseOffset(offset), fmt.Errorf("meteora dlmm remove liquidity2 decode error: %v, offset, %d, %d", err, offset[0], offset[1])
 		}
-		binChanges = dlmmBinChangesFromReduction(args.BinLiquidityRemoval)
 		startBinId, endBinId = dlmmMinMaxBinIdFromReduction(args.BinLiquidityRemoval)
 		removeBp = dlmmCommonRemoveBp(args.BinLiquidityRemoval)
 	case meteoraDlmmRemoveLiquidityByRangeDiscriminator:
@@ -1064,7 +1175,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 		startBinId = args.FromBinId
 		endBinId = args.ToBinId
 		removeBp = int32(args.BpsToRemove)
-		binChanges = dlmmBinChangesFromRange(startBinId, endBinId, args.BpsToRemove)
 	case meteoraDlmmRemoveLiquidityByRange2Discriminator:
 		var args dlmmRemoveLiquidityByRange2Args
 		if err := agbinary.NewBorshDecoder(decode[8:]).Decode(&args); err != nil {
@@ -1073,7 +1183,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 		startBinId = args.FromBinId
 		endBinId = args.ToBinId
 		removeBp = int32(args.BpsToRemove)
-		binChanges = dlmmBinChangesFromRange(startBinId, endBinId, args.BpsToRemove)
 	default:
 		return nil, increaseOffset(offset), InstructionIgnoredError
 	}
@@ -1119,7 +1228,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 		baseAmount = amountYDec
 		quoteAmount = amountXDec
 	}
-
 	eventUser := result.accountList[accounts.userIdx]
 	if !removeEvent.From.IsZero() {
 		eventUser = removeEvent.From
@@ -1181,7 +1289,6 @@ func metaoradlmmRemoveLiquidityParser(tx *Tx, instruction Instruction, innerInst
 		StartBinId:        startBinId,
 		EndBinId:          endBinId,
 		RemoveBp:          removeBp,
-		BinChanges:        binChanges,
 		PositionAccount:   result.accountList[accounts.positionIdx],
 	}
 
@@ -1425,7 +1532,6 @@ func metaoradlmmRebalanceLiquidityParser(tx *Tx, instruction Instruction, innerI
 			ActiveBinId:       event.ActiveBinId,
 			StartBinId:        event.OldMinBinId,
 			EndBinId:          event.OldMaxBinId,
-			BinChanges:        dlmmBinChangesFromRange(event.OldMinBinId, event.OldMaxBinId, 0),
 			PositionAccount:   result.accountList[accounts.positionIdx],
 		})
 	}
@@ -1451,7 +1557,6 @@ func metaoradlmmRebalanceLiquidityParser(tx *Tx, instruction Instruction, innerI
 			ActiveBinId:       event.ActiveBinId,
 			StartBinId:        event.NewMinBinId,
 			EndBinId:          event.NewMaxBinId,
-			BinChanges:        dlmmBinChangesFromRange(event.NewMinBinId, event.NewMaxBinId, 0),
 			PositionAccount:   result.accountList[accounts.positionIdx],
 		})
 	}
@@ -1633,6 +1738,51 @@ func dlmmPositionCloseEventFromInnerInstructions(innerInstructions InnerInstruct
 	return dlmmPositionCloseEvent{}, increaseOffset(offset), false, nil
 }
 
+func dlmmLbPairCreateEventFromInnerInstructions(innerInstructions InnerInstructions, instruction Instruction, offset [2]uint) (dlmmLbPairCreateEvent, [2]uint, bool, error) {
+	var prefixLen = offset[1]
+	inners, err := getInnerInstructions(innerInstructions, prefixLen)
+	if err != nil {
+		return dlmmLbPairCreateEvent{}, increaseOffset(offset), false, fmt.Errorf("meteora dlmm create get inner instructions error: %v, offset, %d, %d", err, offset[0], prefixLen)
+	}
+	for innerIndex, innerInstr := range inners {
+		if innerInstr.ProgramIDIndex != instruction.ProgramIDIndex {
+			continue
+		}
+		event, ok := dlmmDecodeLbPairCreateEvent(innerInstr.Data)
+		if !ok {
+			continue
+		}
+		if offset[1] == 0 {
+			offset[0] += 1
+		} else {
+			offset[1] = uint(innerIndex) + 1 + prefixLen
+		}
+		return event, offset, true, nil
+	}
+	return dlmmLbPairCreateEvent{}, increaseOffset(offset), false, nil
+}
+
+func dlmmDecodeLbPairCreateEvent(data []byte) (dlmmLbPairCreateEvent, bool) {
+	switch {
+	case len(data) >= 8 && bytes.Equal(data[:8], meteoraInitializeLbPairEventDiscriminator[:]):
+		var event dlmmLbPairCreateEvent
+		if err := agbinary.NewBorshDecoder(data[8:]).Decode(&event); err != nil {
+			return dlmmLbPairCreateEvent{}, false
+		}
+		return event, true
+	case len(data) >= 16 &&
+		bytes.Equal(data[:8], eventDiscriminator[:]) &&
+		bytes.Equal(data[8:16], meteoraInitializeLbPairEventDiscriminator[:]):
+		var event dlmmLbPairCreateEvent
+		if err := agbinary.NewBorshDecoder(data[16:]).Decode(&event); err != nil {
+			return dlmmLbPairCreateEvent{}, false
+		}
+		return event, true
+	default:
+		return dlmmLbPairCreateEvent{}, false
+	}
+}
+
 func dlmmDecodeAddLiquidityEvent(data []byte) (dlmmAddLiquidityEvent, bool) {
 	switch {
 	case len(data) >= 8 && bytes.Equal(data[:8], meteoraDlmmAddLiquidityEventDiscriminator[:]):
@@ -1973,10 +2123,8 @@ func dlmmBuildOneSideAddSwap(
 	tx *Tx,
 	instruction Instruction,
 	addEvent dlmmAddLiquidityEvent,
-	weightDist []dlmmBinLiquidityDistributionByWeight,
 	startBinId int32,
 	endBinId int32,
-	hasRange bool,
 	entryContract solana.PublicKey,
 ) ([]Swap, error) {
 	result := tx.rawTx
@@ -1999,13 +2147,6 @@ func dlmmBuildOneSideAddSwap(
 		}
 	}
 
-	binChanges := []DlmmBinLiquidityChange(nil)
-	if len(weightDist) > 0 {
-		binChanges = dlmmBinChangesFromRange(startBinId, endBinId, 0)
-	} else if hasRange {
-		binChanges = dlmmBinChangesFromRange(startBinId, endBinId, 0)
-	}
-
 	eventUser := result.accountList[accounts.userIdx]
 	if !addEvent.From.IsZero() {
 		eventUser = addEvent.From
@@ -2024,7 +2165,6 @@ func dlmmBuildOneSideAddSwap(
 		ActiveBinId:     addEvent.ActiveBinId,
 		StartBinId:      startBinId,
 		EndBinId:        endBinId,
-		BinChanges:      binChanges,
 		PositionAccount: positionAccount,
 	}
 
@@ -2255,56 +2395,50 @@ func dlmmTokenBalanceMeta(result *RawTx, accountIndex int) (TokenBalance, bool)
 	return TokenBalance{}, false
 }
 
-func dlmmBinChangesFromDistribution(amountX, amountY uint64, dist []dlmmBinLiquidityDistribution) []DlmmBinLiquidityChange {
+func dlmmAllocateByWeights(total uint64, weights []uint64) []decimal.Decimal {
-	if len(dist) == 0 {
+	if len(weights) == 0 {
 		return nil
 	}
-	totalX := decimal.NewFromUint64(amountX)
+
-	totalY := decimal.NewFromUint64(amountY)
+	sumWeights := uint64(0)
-	denom := decimal.NewFromInt(10000)
+	for _, weight := range weights {
-	changes := make([]DlmmBinLiquidityChange, 0, len(dist))
+		sumWeights += weight
-	for _, item := range dist {
-		x := totalX.Mul(decimal.NewFromInt(int64(item.DistributionX))).Div(denom).Truncate(0)
-		y := totalY.Mul(decimal.NewFromInt(int64(item.DistributionY))).Div(denom).Truncate(0)
-		changes = append(changes, DlmmBinLiquidityChange{
-			BinId:   item.BinId,
-			AmountX: x,
-			AmountY: y,
-		})
 	}
-	return changes
+	if sumWeights == 0 {
+		sumWeights = uint64(len(weights))
+		weights = append([]uint64(nil), weights...)
+		for i := range weights {
+			weights[i] = 1
+		}
+	}
+
+	allocations := make([]decimal.Decimal, len(weights))
+	remaining := total
+	for i, weight := range weights {
+		amount := uint64(0)
+		if i == len(weights)-1 {
+			amount = remaining
+		} else if sumWeights > 0 {
+			amount = total * weight / sumWeights
+			if amount > remaining {
+				amount = remaining
+			}
+			remaining -= amount
+		}
+		allocations[i] = decimal.NewFromUint64(amount)
+	}
+	return allocations
 }
 
-func dlmmBinChangesFromReduction(reduction []dlmmBinLiquidityReduction) []DlmmBinLiquidityChange {
+func dlmmApplySignedAllocation(values []decimal.Decimal, negative bool) []decimal.Decimal {
-	if len(reduction) == 0 {
+	if !negative {
-		return nil
+		return values
 	}
-	changes := make([]DlmmBinLiquidityChange, 0, len(reduction))
+	out := make([]decimal.Decimal, len(values))
-	for _, item := range reduction {
+	for i, value := range values {
-		changes = append(changes, DlmmBinLiquidityChange{
+		out[i] = value.Neg()
-			BinId:       item.BinId,
-			BpsToRemove: item.BpsToRemove,
-		})
 	}
-	return changes
+	return out
-}
-
-func dlmmBinChangesFromRange(startBinId, endBinId int32, bpsToRemove uint16) []DlmmBinLiquidityChange {
-	if startBinId > endBinId {
-		startBinId, endBinId = endBinId, startBinId
-	}
-	count := int(endBinId-startBinId) + 1
-	if count <= 0 {
-		return nil
-	}
-	changes := make([]DlmmBinLiquidityChange, 0, count)
-	for binId := startBinId; binId <= endBinId; binId++ {
-		changes = append(changes, DlmmBinLiquidityChange{
-			BinId:       binId,
-			BpsToRemove: bpsToRemove,
-		})
-	}
-	return changes
 }
 
 func dlmmMinMaxBinIDFromCompressedDeposits(bins []dlmmCompressedBinDepositAmount) (startBinID, endBinID int32) {

metaoradlmm_test.go

@@ -0,0 +1,415 @@
+package pump_parser
+
+import (
+	"bytes"
+	"testing"
+
+	agbinary "github.com/gagliardetto/binary"
+	"github.com/gagliardetto/solana-go"
+	"github.com/shopspring/decimal"
+)
+
+func testPublicKey(seed byte) solana.PublicKey {
+	buf := make([]byte, solana.PublicKeyLength)
+	for i := range buf {
+		buf[i] = seed
+	}
+	return solana.PublicKeyFromBytes(buf)
+}
+
+func seqInts(n int) []int {
+	out := make([]int, n)
+	for i := range out {
+		out[i] = i
+	}
+	return out
+}
+
+func mustBorshEncode(t *testing.T, value any) []byte {
+	t.Helper()
+
+	var buf bytes.Buffer
+	if err := agbinary.NewBorshEncoder(&buf).Encode(value); err != nil {
+		t.Fatalf("borsh encode failed: %v", err)
+	}
+	return buf.Bytes()
+}
+
+func TestMeteoraDlmmInitializeParserCompatibility(t *testing.T) {
+	t.Parallel()
+
+	testCases := []struct {
+		name                string
+		discriminator       [8]byte
+		accountCount        int
+		wantPoolPos         int
+		wantBaseMintPos     int
+		wantQuoteMintPos    int
+		wantUserPos         int
+		wantBaseProgramPos  int
+		wantQuoteProgramPos int
+	}{
+		{
+			name:                "initialize_lb_pair",
+			discriminator:       meteoraInitializeLbPairDiscriminator,
+			accountCount:        14,
+			wantPoolPos:         0,
+			wantBaseMintPos:     2,
+			wantQuoteMintPos:    3,
+			wantUserPos:         8,
+			wantBaseProgramPos:  9,
+			wantQuoteProgramPos: 9,
+		},
+		{
+			name:                "initialize_lb_pair2",
+			discriminator:       meteoraInitializeLbPair2Discriminator,
+			accountCount:        16,
+			wantPoolPos:         0,
+			wantBaseMintPos:     2,
+			wantQuoteMintPos:    3,
+			wantUserPos:         8,
+			wantBaseProgramPos:  11,
+			wantQuoteProgramPos: 12,
+		},
+		{
+			name:                "initialize_customizable_permissionless_lb_pair",
+			discriminator:       meteoraInitializeCustomizablePermissionlessLbPairDiscriminator,
+			accountCount:        14,
+			wantPoolPos:         0,
+			wantBaseMintPos:     2,
+			wantQuoteMintPos:    3,
+			wantUserPos:         8,
+			wantBaseProgramPos:  9,
+			wantQuoteProgramPos: 9,
+		},
+		{
+			name:                "initialize_customizable_permissionless_lb_pair2",
+			discriminator:       meteoraInitializeCustomizablePermissionlessLbPair2Discriminator,
+			accountCount:        17,
+			wantPoolPos:         0,
+			wantBaseMintPos:     2,
+			wantQuoteMintPos:    3,
+			wantUserPos:         8,
+			wantBaseProgramPos:  11,
+			wantQuoteProgramPos: 12,
+		},
+		{
+			name:                "initialize_permission_lb_pair",
+			discriminator:       meteoraInitializePermissionLbPairDiscriminator,
+			accountCount:        17,
+			wantPoolPos:         1,
+			wantBaseMintPos:     3,
+			wantQuoteMintPos:    4,
+			wantUserPos:         8,
+			wantBaseProgramPos:  11,
+			wantQuoteProgramPos: 12,
+		},
+	}
+
+	for _, tc := range testCases {
+		tc := tc
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			accountList := make([]solana.PublicKey, 32)
+			for i := range accountList {
+				accountList[i] = testPublicKey(byte(i + 1))
+			}
+			programIndex := 30
+			accountList[programIndex] = meteoraDlmmProgram
+
+			instruction := Instruction{
+				Accounts:       seqInts(tc.accountCount),
+				Data:           solana.Base58(tc.discriminator[:]),
+				ProgramIDIndex: programIndex,
+			}
+
+			rawTx := &RawTx{
+				accountList: accountList,
+				Meta: Meta{
+					PostTokenBalances: []TokenBalance{
+						{
+							MintAccount: accountList[tc.wantBaseMintPos],
+							UITokenAmount: UITokenAmount{
+								Decimals: 6,
+							},
+						},
+						{
+							MintAccount: accountList[tc.wantQuoteMintPos],
+							UITokenAmount: UITokenAmount{
+								Decimals: 9,
+							},
+						},
+					},
+				},
+				Transaction: Transaction{
+					Message: Message{
+						Instructions: []Instruction{instruction},
+					},
+				},
+			}
+
+			tx := &Tx{rawTx: rawTx}
+
+			swaps, _, err := metaoradlmmParser(tx, instruction, InnerInstructions{}, [2]uint{0, 0})
+			if err != nil {
+				t.Fatalf("metaoradlmmParser() error = %v", err)
+			}
+			if len(swaps) != 1 {
+				t.Fatalf("metaoradlmmParser() swaps len = %d, want 1", len(swaps))
+			}
+
+			swap := swaps[0]
+			if !swap.Pool.Equals(accountList[tc.wantPoolPos]) {
+				t.Fatalf("swap.Pool = %s, want %s", swap.Pool, accountList[tc.wantPoolPos])
+			}
+			if !swap.BaseMint.Equals(accountList[tc.wantBaseMintPos]) {
+				t.Fatalf("swap.BaseMint = %s, want %s", swap.BaseMint, accountList[tc.wantBaseMintPos])
+			}
+			if !swap.QuoteMint.Equals(accountList[tc.wantQuoteMintPos]) {
+				t.Fatalf("swap.QuoteMint = %s, want %s", swap.QuoteMint, accountList[tc.wantQuoteMintPos])
+			}
+			if !swap.User.Equals(accountList[tc.wantUserPos]) {
+				t.Fatalf("swap.User = %s, want %s", swap.User, accountList[tc.wantUserPos])
+			}
+			if !swap.BaseTokenProgram.Equals(accountList[tc.wantBaseProgramPos]) {
+				t.Fatalf("swap.BaseTokenProgram = %s, want %s", swap.BaseTokenProgram, accountList[tc.wantBaseProgramPos])
+			}
+			if !swap.QuoteTokenProgram.Equals(accountList[tc.wantQuoteProgramPos]) {
+				t.Fatalf("swap.QuoteTokenProgram = %s, want %s", swap.QuoteTokenProgram, accountList[tc.wantQuoteProgramPos])
+			}
+			if swap.BaseMintDecimals != 6 {
+				t.Fatalf("swap.BaseMintDecimals = %d, want 6", swap.BaseMintDecimals)
+			}
+			if swap.QuoteMintDecimals != 9 {
+				t.Fatalf("swap.QuoteMintDecimals = %d, want 9", swap.QuoteMintDecimals)
+			}
+			if !swap.EntryContract.Equals(meteoraDlmmProgram) {
+				t.Fatalf("swap.EntryContract = %s, want %s", swap.EntryContract, meteoraDlmmProgram)
+			}
+		})
+	}
+}
+
+func TestDlmmDecodeLbPairCreateEvent(t *testing.T) {
+	t.Parallel()
+
+	event := dlmmLbPairCreateEvent{
+		LbPair:  testPublicKey(90),
+		BinStep: 42,
+		TokenX:  testPublicKey(91),
+		TokenY:  testPublicKey(92),
+	}
+
+	body := mustBorshEncode(t, event)
+
+	barePayload := append(append([]byte{}, meteoraInitializeLbPairEventDiscriminator[:]...), body...)
+	decodedBare, ok := dlmmDecodeLbPairCreateEvent(barePayload)
+	if !ok {
+		t.Fatalf("dlmmDecodeLbPairCreateEvent() failed for bare payload")
+	}
+	if decodedBare != event {
+		t.Fatalf("decoded bare event = %+v, want %+v", decodedBare, event)
+	}
+
+	anchorPayload := append(append(append([]byte{}, eventDiscriminator[:]...), meteoraInitializeLbPairEventDiscriminator[:]...), body...)
+	decodedAnchor, ok := dlmmDecodeLbPairCreateEvent(anchorPayload)
+	if !ok {
+		t.Fatalf("dlmmDecodeLbPairCreateEvent() failed for anchor payload")
+	}
+	if decodedAnchor != event {
+		t.Fatalf("decoded anchor event = %+v, want %+v", decodedAnchor, event)
+	}
+}
+
+func TestMeteoraDlmmInitializeParserUsesLbPairCreateEvent(t *testing.T) {
+	t.Parallel()
+
+	accountList := make([]solana.PublicKey, 32)
+	for i := range accountList {
+		accountList[i] = testPublicKey(byte(i + 1))
+	}
+	programIndex := 30
+	accountList[programIndex] = meteoraDlmmProgram
+
+	instruction := Instruction{
+		Accounts:       seqInts(16),
+		Data:           solana.Base58(meteoraInitializeLbPair2Discriminator[:]),
+		ProgramIDIndex: programIndex,
+	}
+
+	event := dlmmLbPairCreateEvent{
+		LbPair:  testPublicKey(111),
+		BinStep: 25,
+		TokenX:  testPublicKey(112),
+		TokenY:  testPublicKey(113),
+	}
+	innerEventData := append(
+		append(append([]byte{}, eventDiscriminator[:]...), meteoraInitializeLbPairEventDiscriminator[:]...),
+		mustBorshEncode(t, event)...,
+	)
+
+	rawTx := &RawTx{
+		accountList: accountList,
+		Meta: Meta{
+			PostTokenBalances: []TokenBalance{
+				{
+					MintAccount: accountList[2],
+					UITokenAmount: UITokenAmount{
+						Decimals: 6,
+					},
+				},
+				{
+					MintAccount: accountList[3],
+					UITokenAmount: UITokenAmount{
+						Decimals: 9,
+					},
+				},
+			},
+			InnerInstructions: []InnerInstructions{
+				{
+					Index: 0,
+					Instructions: []Instruction{
+						{
+							ProgramIDIndex: programIndex,
+							Data:           solana.Base58(innerEventData),
+						},
+					},
+				},
+			},
+		},
+		Transaction: Transaction{
+			Message: Message{
+				Instructions: []Instruction{instruction},
+			},
+		},
+	}
+
+	tx := &Tx{rawTx: rawTx}
+
+	swaps, nextOffset, err := metaoradlmmParser(tx, instruction, rawTx.Meta.InnerInstructions[0], [2]uint{0, 0})
+	if err != nil {
+		t.Fatalf("metaoradlmmParser() error = %v", err)
+	}
+	if len(swaps) != 1 {
+		t.Fatalf("metaoradlmmParser() swaps len = %d, want 1", len(swaps))
+	}
+
+	swap := swaps[0]
+	if !swap.Pool.Equals(event.LbPair) {
+		t.Fatalf("swap.Pool = %s, want event %s", swap.Pool, event.LbPair)
+	}
+	if !swap.BaseMint.Equals(event.TokenX) {
+		t.Fatalf("swap.BaseMint = %s, want event %s", swap.BaseMint, event.TokenX)
+	}
+	if !swap.QuoteMint.Equals(event.TokenY) {
+		t.Fatalf("swap.QuoteMint = %s, want event %s", swap.QuoteMint, event.TokenY)
+	}
+	if nextOffset != ([2]uint{1, 0}) {
+		t.Fatalf("nextOffset = %#v, want [2]uint{1, 0}", nextOffset)
+	}
+}
+
+func TestDlmmSwapFeeInfo(t *testing.T) {
+	t.Parallel()
+
+	baseMint := testPublicKey(1)
+	quoteMint := testPublicKey(2)
+	baseProgram := testPublicKey(3)
+	quoteProgram := testPublicKey(4)
+
+	testCases := []struct {
+		name         string
+		baseIsX      bool
+		swapForY     bool
+		wantFeeSide  string
+		wantFeeMint  solana.PublicKey
+		wantFeeProg  solana.PublicKey
+		wantDecimals uint8
+	}{
+		{
+			name:         "x is base and input is x",
+			baseIsX:      true,
+			swapForY:     true,
+			wantFeeSide:  "base",
+			wantFeeMint:  baseMint,
+			wantFeeProg:  baseProgram,
+			wantDecimals: 6,
+		},
+		{
+			name:         "x is base and input is y",
+			baseIsX:      true,
+			swapForY:     false,
+			wantFeeSide:  "quote",
+			wantFeeMint:  quoteMint,
+			wantFeeProg:  quoteProgram,
+			wantDecimals: 9,
+		},
+		{
+			name:         "y is base and input is x",
+			baseIsX:      false,
+			swapForY:     true,
+			wantFeeSide:  "quote",
+			wantFeeMint:  quoteMint,
+			wantFeeProg:  quoteProgram,
+			wantDecimals: 9,
+		},
+		{
+			name:         "y is base and input is y",
+			baseIsX:      false,
+			swapForY:     false,
+			wantFeeSide:  "base",
+			wantFeeMint:  baseMint,
+			wantFeeProg:  baseProgram,
+			wantDecimals: 6,
+		},
+	}
+
+	for _, tc := range testCases {
+		tc := tc
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+
+			feeAmount, feeSide, feeMint, feeProgram, feeDecimals := dlmmSwapFeeInfo(
+				tc.baseIsX,
+				tc.swapForY,
+				123,
+				baseMint,
+				quoteMint,
+				baseProgram,
+				quoteProgram,
+				6,
+				9,
+			)
+			if !feeAmount.Equal(decimal.NewFromInt(123)) {
+				t.Fatalf("feeAmount = %s, want 123", feeAmount)
+			}
+			if feeSide != tc.wantFeeSide {
+				t.Fatalf("feeSide = %s, want %s", feeSide, tc.wantFeeSide)
+			}
+			if !feeMint.Equals(tc.wantFeeMint) {
+				t.Fatalf("feeMint = %s, want %s", feeMint, tc.wantFeeMint)
+			}
+			if !feeProgram.Equals(tc.wantFeeProg) {
+				t.Fatalf("feeProgram = %s, want %s", feeProgram, tc.wantFeeProg)
+			}
+			if feeDecimals != tc.wantDecimals {
+				t.Fatalf("feeDecimals = %d, want %d", feeDecimals, tc.wantDecimals)
+			}
+		})
+	}
+}
+
+func TestDlmmSwapLpFeeAmount(t *testing.T) {
+	t.Parallel()
+
+	lpFee := dlmmSwapLpFeeAmount(100, 15, 5)
+	if !lpFee.Equal(decimal.NewFromInt(80)) {
+		t.Fatalf("lpFee = %s, want 80", lpFee)
+	}
+
+	lpFee = dlmmSwapLpFeeAmount(10, 8, 5)
+	if !lpFee.IsZero() {
+		t.Fatalf("lpFee should floor at zero, got %s", lpFee)
+	}
+}

tx.go

@@ -30,6 +30,12 @@ type Swap struct {
 	User            solana.PublicKey
 	BaseAmount      decimal.Decimal
 	QuoteAmount     decimal.Decimal
+	FeeAmount       decimal.Decimal
+	LpFeeAmount     decimal.Decimal
+	FeeSide         string
+	FeeMint         solana.PublicKey
+	FeeTokenProgram solana.PublicKey
+	FeeMintDecimals uint8
 
 	BaseReserve  decimal.Decimal
 	QuoteReserve decimal.Decimal
@@ -52,19 +58,11 @@ type Swap struct {
 	StartBinId      int32
 	EndBinId        int32
 	RemoveBp        int32
-	BinChanges  []DlmmBinLiquidityChange
 	PositionAccount solana.PublicKey
 
 	ConsumeUnit uint64
 }
 
-type DlmmBinLiquidityChange struct {
-	BinId       int32
-	AmountX     decimal.Decimal
-	AmountY     decimal.Decimal
-	BpsToRemove uint16
-}
-
 type platformInfo struct {
 	Platform    string
 	PlatformFee decimal.Decimal