84 lines
2.4 KiB
Go
84 lines
2.4 KiB
Go
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package pump_parser
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import (
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"encoding/binary"
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"fmt"
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"github.com/shopspring/decimal"
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)
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func systemParser(result *RawTx, instr Instruction, innerInstructions InnerInstructions, offset [2]uint, tx *Tx) ([2]uint, error) {
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var instruction Instruction
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var found bool
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if offset[1] == 0 {
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instruction = result.Transaction.Message.Instructions[offset[0]]
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found = true
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} else {
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for _, innerInstruction := range result.Meta.InnerInstructions {
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if innerInstruction.Index == int(offset[0]) {
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instruction = innerInstruction.Instructions[offset[1]-1]
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found = true
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break
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}
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}
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}
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if !found {
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return increaseOffset(offset), fmt.Errorf("system program instruction not found, block: %d, tx: %s, outerIndex: %d, innerIndex: %d", result.Slot, result.TxHash(), offset[0], offset[1])
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}
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decode := instruction.Data
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discriminator := binary.LittleEndian.Uint32(decode[0:4])
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switch discriminator {
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case transferDiscriminator:
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return TransferParser(result, instruction, offset, tx, decode[4:])
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default:
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return increaseOffset(offset), nil
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}
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}
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func TransferParser(result *RawTx, instruction Instruction, offset [2]uint, tx *Tx, decodeData []byte) ([2]uint, error) {
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if len(decodeData) < 8 {
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return increaseOffset(offset), nil
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}
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var lamports uint64 = binary.LittleEndian.Uint64(decodeData)
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//from := result.accountList[result.Transaction.Message.Instructions[offset[0]].Accounts[0]]
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to := result.accountList[instruction.Accounts[1]]
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// load platform by to address
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platform, ok := platformFeeAddresses[to]
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if ok {
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if tx.Platform != nil {
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tx.Platform[platform] = platformInfo{
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Platform: platform,
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PlatformFee: decimal.NewFromInt(int64(lamports)).Div(decimal.NewFromInt(1e9)), // solana decimals
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}
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} else {
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tx.Platform = make(map[string]platformInfo)
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tx.Platform[platform] = platformInfo{
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Platform: platform,
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PlatformFee: decimal.NewFromInt(int64(lamports)).Div(decimal.NewFromInt(1e9)), // solana decimals
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}
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}
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} else if offset[1] == 0 {
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// load mev agent by to address
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mevAgent, ok := mevAgentFeeAddresses[to]
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if !ok {
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// mark it as unknown
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mevAgent = MevAgentUnknown
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}
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if tx.MevAgent == nil {
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tx.MevAgent = make(map[string]mevInfo)
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}
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tx.MevAgent[mevAgent] = mevInfo{
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MevAgent: mevAgent,
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MevAgentFee: decimal.NewFromInt(int64(lamports)).Div(decimal.NewFromInt(1e9)), // solana decimals
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}
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}
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return increaseOffset(offset), nil
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}
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