Start work on cleaning up the coordinator's tributary handling

coordinator/src/tributary/mod.rs

@@ -1,63 +1,6 @@
-use tributary::{
-  ReadWrite,
-  transaction::{TransactionError, TransactionKind, Transaction as TransactionTrait},
-  Tributary,
-};
+mod transaction;
+pub use transaction::Transaction;
 
 mod db;
-pub use db::*;
 
-mod spec;
-pub use spec::TributarySpec;
-
-mod transaction;
-pub use transaction::{Label, SignData, Transaction};
-
-mod signing_protocol;
-
-mod handle;
-pub use handle::*;
-
-pub mod scanner;
-
-pub async fn publish_signed_transaction<D: Db, P: crate::P2p>(
-  txn: &mut D::Transaction<'_>,
-  tributary: &Tributary<D, Transaction, P>,
-  tx: Transaction,
-) {
-  log::debug!("publishing transaction {}", hex::encode(tx.hash()));
-
-  let (order, signer) = if let TransactionKind::Signed(order, signed) = tx.kind() {
-    let signer = signed.signer;
-
-    // Safe as we should deterministically create transactions, meaning if this is already on-disk,
-    // it's what we're saving now
-    SignedTransactionDb::set(txn, &order, signed.nonce, &tx.serialize());
-
-    (order, signer)
-  } else {
-    panic!("non-signed transaction passed to publish_signed_transaction");
-  };
-
-  // If we're trying to publish 5, when the last transaction published was 3, this will delay
-  // publication until the point in time we publish 4
-  while let Some(tx) = SignedTransactionDb::take_signed_transaction(
-    txn,
-    &order,
-    tributary
-      .next_nonce(&signer, &order)
-      .await
-      .expect("we don't have a nonce, meaning we aren't a participant on this tributary"),
-  ) {
-    // We need to return a proper error here to enable that, due to a race condition around
-    // multiple publications
-    match tributary.add_transaction(tx.clone()).await {
-      Ok(_) => {}
-      // Some asynchonicity if InvalidNonce, assumed safe to deterministic nonces
-      Err(TransactionError::InvalidNonce) => {
-        log::warn!("publishing TX {tx:?} returned InvalidNonce. was it already added?")
-      }
-      Err(e) => panic!("created an invalid transaction: {e:?}"),
-    }
-  }
-}
+mod scan;