split program source file

pkg/shreder/program_bobo.go

@@ -0,0 +1,77 @@
+package shreder
+
+import (
+	"bytes"
+	"fmt"
+
+	"github.com/gagliardetto/solana-go"
+	"github.com/near/borsh-go"
+	"github.com/shopspring/decimal"
+)
+
+var boboProgramID = solana.MustPublicKeyFromBase58("BobogA5N2KN2GG4XN3E3rNNRw3L8H1QPXp7QLxGrNHGM")
+var (
+	boboBuyPumpTokensIX = []byte{0xff, 0xe7, 0x11, 0x53, 0x15, 0xc5, 0xc3, 0xdf}
+)
+
+type boboBuyArgs struct {
+	Placeholder1 uint64
+	Placeholder2 uint64
+	SolAmount    uint64
+	Placeholder3 uint64
+	Placeholder4 uint64
+	Placeholder5 uint64
+	Placeholder6 uint64
+}
+
+func parseBoboInstruction(tx VersionedTransaction, instructionIndex int) (TxSignalBatch, error) {
+	if instructionIndex >= len(tx.Instructions) {
+		return nil, fmt.Errorf("instruction index out of bounds")
+	}
+
+	instruction := tx.Instructions[instructionIndex]
+	if len(instruction.Data) == 0 {
+		return nil, fmt.Errorf("data is empty")
+	}
+	if len(instruction.Data) < 8 || !bytes.Equal(instruction.Data[:8], boboBuyPumpTokensIX) {
+		return nil, nil
+	}
+
+	if len(instruction.Accounts) < 8 {
+		return nil, fmt.Errorf("accounts too short")
+	}
+	if len(instruction.Data) < 16 {
+		return nil, fmt.Errorf("data too short for bobo buy args, len=%d", len(instruction.Data))
+	}
+
+	mint, err := tx.GetAccount(int(instruction.Accounts[2]))
+	if err != nil {
+		return nil, err
+	}
+	user, err := tx.GetAccount(int(instruction.Accounts[6]))
+	if err != nil {
+		return nil, err
+	}
+
+	var args boboBuyArgs
+	if err := borsh.Deserialize(&args, instruction.Data[8:]); err != nil {
+		return nil, fmt.Errorf("failed to parse buy tokens args: %w", err)
+	}
+
+	return TxSignalBatch{&TxSignal{
+		TxHash:             tx.Signatures[0].String(),
+		Label:              "bobo",
+		Maker:              user.String(),
+		Token0Address:      mint.String(),
+		Token1Address:      wsolMint,
+		Token0Amount:       decimal.NewFromInt(1),
+		Token1Amount:       formatSolAmount(args.SolAmount),
+		Program:            "Pump",
+		Event:              "buy",
+		IsToken2022:        false,
+		IsMayhemMode:       false,
+		Block:              tx.Block,
+		Token0AmountUint64: 1,
+		Token1AmountUint64: args.SolAmount,
+	}}, nil
+}