Add bitcoin Block trait impl

processor/bitcoin/src/block.rs

@@ -0,0 +1,70 @@
+use std::collections::HashMap;
+
+use ciphersuite::{Ciphersuite, Secp256k1};
+
+use bitcoin_serai::bitcoin::block::{Header, Block as BBlock};
+
+use serai_client::networks::bitcoin::Address;
+
+use primitives::{ReceivedOutput, EventualityTracker};
+
+use crate::{hash_bytes, scanner::scanner, output::Output, transaction::Eventuality};
+
+#[derive(Clone, Debug)]
+pub(crate) struct BlockHeader(Header);
+impl primitives::BlockHeader for BlockHeader {
+  fn id(&self) -> [u8; 32] {
+    hash_bytes(self.0.block_hash().to_raw_hash())
+  }
+  fn parent(&self) -> [u8; 32] {
+    hash_bytes(self.0.prev_blockhash.to_raw_hash())
+  }
+}
+
+#[derive(Clone, Debug)]
+pub(crate) struct Block(BBlock);
+
+#[async_trait::async_trait]
+impl primitives::Block for Block {
+  type Header = BlockHeader;
+
+  type Key = <Secp256k1 as Ciphersuite>::G;
+  type Address = Address;
+  type Output = Output;
+  type Eventuality = Eventuality;
+
+  fn id(&self) -> [u8; 32] {
+    primitives::BlockHeader::id(&BlockHeader(self.0.header))
+  }
+
+  fn scan_for_outputs_unordered(&self, key: Self::Key) -> Vec<Self::Output> {
+    let scanner = scanner(key);
+
+    let mut res = vec![];
+    // We skip the coinbase transaction as its burdened by maturity
+    for tx in &self.0.txdata[1 ..] {
+      for output in scanner.scan_transaction(tx) {
+        res.push(Output::new(key, tx, output));
+      }
+    }
+    res
+  }
+
+  #[allow(clippy::type_complexity)]
+  fn check_for_eventuality_resolutions(
+    &self,
+    eventualities: &mut EventualityTracker<Self::Eventuality>,
+  ) -> HashMap<
+    <Self::Output as ReceivedOutput<Self::Key, Self::Address>>::TransactionId,
+    Self::Eventuality,
+  > {
+    let mut res = HashMap::new();
+    for tx in &self.0.txdata[1 ..] {
+      let id = hash_bytes(tx.compute_txid().to_raw_hash());
+      if let Some(eventuality) = eventualities.active_eventualities.remove(id.as_slice()) {
+        res.insert(id, eventuality);
+      }
+    }
+    res
+  }
+}