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use std::collections::HashMap;
use bitcoind_request::{
client::Client as BitcoindRequestClient,
command::{
get_raw_transaction::{
GetRawTransactionCommand, GetRawTransactionCommandResponse,
Transaction as BitcoindTransaction, Vin,
},
CallableCommand,
},
};
use electrs_query::{
self, get_balance_for_address, get_historical_transactions_for_address, get_utxos_for_address,
Client as ElectrsClient,
};
pub type VinIndex = u64;
pub type VoutIndex = u64;
pub type SpentFromTransaction = BitcoindTransaction;
pub type SpentInTransaction = BitcoindTransaction;
#[derive(Debug, Clone)]
pub enum TransactionFlow {
Sent(VinIndex, SpentFromTransaction, SpentInTransaction),
Recieved(VoutIndex, BitcoindTransaction),
}
fn get_transaction(
txid: String,
bitcoind_request_client: &BitcoindRequestClient,
) -> BitcoindTransaction {
let transaction_response = GetRawTransactionCommand::new(txid.to_string())
.verbose(true)
.call(&bitcoind_request_client)
.unwrap();
let transaction_result = match transaction_response {
GetRawTransactionCommandResponse::Transaction(transaction) => Ok(transaction),
_ => Err("shouldn't reach"),
};
transaction_result.unwrap()
}
fn get_raw_transactions_for_address(
address: &str,
electrs_client: &ElectrsClient,
bitcoind_request_client: &BitcoindRequestClient,
) -> Vec<BitcoindTransaction> {
let history = get_historical_transactions_for_address(&address, &electrs_client);
let transactions: Vec<BitcoindTransaction> = history
.iter()
.map(|historical_transaction| {
let txid = &historical_transaction.tx_hash;
let transaction_response = GetRawTransactionCommand::new(txid.to_string())
.verbose(true)
.call(&bitcoind_request_client)
.unwrap();
let transaction_result = match transaction_response {
GetRawTransactionCommandResponse::Transaction(transaction) => Ok(transaction),
_ => Err("shouldn't reach"),
};
transaction_result.unwrap()
})
.collect();
transactions
}
pub type TransactionFlowsWithTransaction = (BitcoindTransaction, Vec<TransactionFlow>);
pub type TransactionFlowsForAddress = Vec<TransactionFlowsWithTransaction>;
type Txid = String;
type Blocktime = i64;
type TransactionFlowsForMultipleAddressesOrganizedByTransaction =
HashMap<(Txid, Blocktime), Vec<TransactionFlow>>;
pub fn organize_transaction_flows_for_mulitple_addresses_by_txid_and_blocktime(
transaction_flows_for_addresses: Vec<TransactionFlowsForAddress>,
) -> TransactionFlowsForMultipleAddressesOrganizedByTransaction {
let mut transactions_grouped_by_transaction: TransactionFlowsForMultipleAddressesOrganizedByTransaction =
HashMap::new();
for transaction_flows_for_address in transaction_flows_for_addresses.clone() {
for transaction_flows_with_transaction in transaction_flows_for_address {
let (tx, tx_types) = transaction_flows_with_transaction;
let txid = tx.txid;
let blocktime = tx.time as i64;
match transactions_grouped_by_transaction.get(&(txid.clone(), blocktime)) {
Some(transactions) => {
let list_to_add = tx_types.clone();
let new_list = transactions.iter().chain(&list_to_add).cloned().collect();
transactions_grouped_by_transaction.insert((txid, blocktime), new_list);
}
None => {
transactions_grouped_by_transaction.insert((txid, blocktime), tx_types);
}
}
}
}
transactions_grouped_by_transaction
}
pub fn get_transaction_flows_for_address(
address: &str,
electrs_client: &ElectrsClient,
bitcoind_request_client: &BitcoindRequestClient,
) -> TransactionFlowsForAddress {
let mut transaction_flows_for_address = vec![];
let transactions =
get_raw_transactions_for_address(address, electrs_client, bitcoind_request_client);
for tx in &transactions {
let mut flows_for_transaction = vec![];
for vout in tx.vout.clone() {
let vout_address = if vout.script_pub_key.address.is_some() {
vout.script_pub_key.address
} else {
vout.address
};
match vout_address {
Some(addr) => {
if addr == address {
flows_for_transaction.push(TransactionFlow::Recieved(vout.n, tx.clone()));
}
}
None => {}
}
}
for vin in tx.vin.clone() {
match vin {
Vin::Coinbase(_vin) => {
todo!()
}
Vin::NonCoinbase(vin) => {
let transaction_for_vin = get_transaction(vin.txid, bitcoind_request_client);
let vout_for_vin = &transaction_for_vin.vout[vin.vout as usize];
let vout_address = if vout_for_vin.script_pub_key.address.is_some() {
&vout_for_vin.script_pub_key.address
} else {
&vout_for_vin.address
}
.clone();
match vout_address {
Some(addr) => {
if addr == address {
flows_for_transaction.push(TransactionFlow::Sent(
vout_for_vin.n,
transaction_for_vin.clone(),
tx.clone(),
));
}
}
None => {}
}
}
}
}
transaction_flows_for_address.push((tx.clone(), flows_for_transaction));
}
transaction_flows_for_address
}
