chore: add cu price

pkg/shreder/txparser.go

@@ -3,6 +3,7 @@ package shreder
 import (
 	"bytes"
 	"context"
+	"encoding/binary"
 	"fmt"
 	"io"
 	"math/big"
@@ -92,7 +93,10 @@ func ParseTransactionForSubscribe(ctx context.Context, update *SubscribeUpdateTr
 	}
 }
 
-var VoteProgram = solana.MustPublicKeyFromBase58("Vote111111111111111111111111111111111111111")
+var (
+	ComputeBudgetProgram = solana.MustPublicKeyFromBase58("ComputeBudget111111111111111111111111111111")
+	VoteProgram          = solana.MustPublicKeyFromBase58("Vote111111111111111111111111111111111111111")
+)
 
 func FilterTransactionForEntries(versioned VersionedTransaction) bool {
 	if len(versioned.Instructions) >= 1 {
@@ -195,6 +199,22 @@ func ParseTransactionWithHandler(ctx context.Context, versioned VersionedTransac
 		}
 	}
 
+	cuPrice := decimal.Zero
+	cuPriceUint64 := uint64(0)
+	for _, instruction := range versioned.Instructions {
+		program, err := versioned.GetAccount(int(instruction.ProgramIDIndex))
+		if err != nil {
+			continue
+		}
+		if program.Equals(ComputeBudgetProgram) &&
+			len(instruction.Data) == 9 &&
+			instruction.Data[0] == 0x03 {
+			cuPriceUint64 = binary.LittleEndian.Uint64(instruction.Data[1:9])
+			cuPrice = formatCUPrice(cuPriceUint64)
+			break
+		}
+	}
+
 	for i, instruction := range versioned.Instructions {
 		//load from address table
 		program, err := versioned.GetAccount(int(instruction.ProgramIDIndex))
@@ -219,6 +239,8 @@ func ParseTransactionWithHandler(ctx context.Context, versioned VersionedTransac
 				}
 				one.Label = handler.Label
 				one.Block = versioned.Block
+				one.CUPrice = cuPrice
+				one.CUPriceUint64 = cuPriceUint64
 				select {
 				case <-ctx.Done():
 					return
@@ -288,6 +310,11 @@ func toVersionedTransaction(update *SubscribeUpdateTransaction) (VersionedTransa
 	return versioned, nil
 }
 
+func formatCUPrice(cuPrice uint64) decimal.Decimal {
+	val := decimal.NewFromBigInt(new(big.Int).SetUint64(cuPrice), 0)
+	return val.Div(decimal.NewFromInt(1_000_000))
+}
+
 func formatTokenAmount(amount uint64) decimal.Decimal {
 	val := decimal.NewFromBigInt(new(big.Int).SetUint64(amount), 0)
 	return val.Div(decimal.NewFromInt(1_000_000))