80 lines
2.7 KiB
Rust
80 lines
2.7 KiB
Rust
use solana_client::client_error::Result as ClientResult;
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use solana_sdk::pubkey::Pubkey;
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use solana_transaction_status::{
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option_serializer::OptionSerializer, EncodedConfirmedTransactionWithStatusMeta,
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};
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use std::{collections::HashMap, io::Error};
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use crate::structs::openbook::{OpenBookFillEvent, OpenBookFillEventRaw};
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const PROGRAM_DATA: &str = "Program data: ";
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pub fn parse_trades_from_openbook_txns(
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txns: &mut Vec<ClientResult<EncodedConfirmedTransactionWithStatusMeta>>,
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target_markets: &HashMap<Pubkey, String>,
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) -> Vec<OpenBookFillEvent> {
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let mut fills_vector = Vec::<OpenBookFillEvent>::new();
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for txn in txns.iter_mut() {
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match txn {
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Ok(t) => {
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if let Some(m) = &t.transaction.meta {
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match &m.log_messages {
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OptionSerializer::Some(logs) => {
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match parse_openbook_fills_from_logs(
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logs,
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target_markets,
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t.block_time.unwrap(),
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) {
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Some(mut events) => fills_vector.append(&mut events),
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None => {}
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}
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}
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OptionSerializer::None => {}
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OptionSerializer::Skip => {}
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}
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}
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}
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Err(_) => {}
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}
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}
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fills_vector
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}
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fn parse_openbook_fills_from_logs(
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logs: &Vec<String>,
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target_markets: &HashMap<Pubkey, String>,
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block_time: i64,
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) -> Option<Vec<OpenBookFillEvent>> {
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let mut fills_vector = Vec::<OpenBookFillEvent>::new();
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for l in logs {
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match l.strip_prefix(PROGRAM_DATA) {
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Some(log) => {
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let borsh_bytes = match anchor_lang::__private::base64::decode(log) {
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Ok(borsh_bytes) => borsh_bytes,
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_ => continue,
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};
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let mut slice: &[u8] = &borsh_bytes[8..];
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let event: Result<OpenBookFillEventRaw, Error> =
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anchor_lang::AnchorDeserialize::deserialize(&mut slice);
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match event {
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Ok(e) => {
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let fill_event = e.with_time(block_time);
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if target_markets.contains_key(&fill_event.market) {
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fills_vector.push(fill_event);
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}
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}
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_ => continue,
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}
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}
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_ => (),
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}
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}
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if !fills_vector.is_empty() {
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Some(fills_vector)
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} else {
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None
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}
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}
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